Commit Graph

4092 Commits

Author SHA1 Message Date
Chen-Yu Tsai
38b8f82386 clk: sunxi-ng: a31: Correct lcd1-ch1 clock register offset
The register offset for the lcd1-ch1 clock was incorrectly pointing to
the lcd0-ch1 clock. This resulted in the lcd0-ch1 clock being disabled
when the clk core disables unused clocks. This then stops the simplefb
HDMI output path.

Reported-by: Bob Ham <rah@settrans.net>
Fixes: c6e6c96d8f ("clk: sunxi-ng: Add A31/A31s clocks")
Cc: stable@vger.kernel.org # 4.9.x-
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-14 08:27:17 +02:00
Linus Torvalds
b5a53b61a2 Sort of on the quieter side this time, which is probably due more
to me not catching up as quickly on patch review than anything else.
 Overall it seems normal though, a few small changes to the core, mostly
 small non-critical fixes here and there as well as driver updates for new
 and existing hardware support. The biggest things are the TI clk driver
 rework to lay the groundwork for clkctrl support in the next merge window
 and the AmLogic audio/graphics clk support.
 
 Core:
  * clk_possible_parents debugfs file so we know which parents a clk
    could possibly have
  * Fix to make clk rate change notifiers stop on the first failure instead
    of continuing
 
 New Drivers:
  * Mediatek MT6797 SoCs
  * hi655x PMIC clks
  * AmLogic Meson SoC i2s and spdif audio clks and Mali graphics clks
  * Allwinner H5 SoCs and PRCM hardware
 
 Updates:
  * Nvidia Tegra T210 cleanups and non-critical fixes
  * TI OMAP cleanups in preparation for clkctrl support
  * Trivial fixes like kcalloc(), devm_* conversions, and seq_puts()
  * ZTE zx296718 SoC VGA clks
  * Rockchip clk-ids, fixups, and rename of rk1108 to rv1108
  * Support for IDT VersaClock 5P49V5935
  * Renesas R-Car H3 and M3-W IMR clks and ES2.0 rev of R-Car H3 support
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Sort of on the quieter side this time, which is probably due more to
  me not catching up as quickly on patch review than anything else.
  Overall it seems normal though, a few small changes to the core,
  mostly small non-critical fixes here and there as well as driver
  updates for new and existing hardware support.

  The biggest things are the TI clk driver rework to lay the groundwork
  for clkctrl support in the next merge window and the AmLogic
  audio/graphics clk support.

  Core:
   - clk_possible_parents debugfs file so we know which parents a clk
     could possibly have
   - Fix to make clk rate change notifiers stop on the first failure
     instead of continuing

  New Drivers:
   - Mediatek MT6797 SoCs
   - hi655x PMIC clks
   - AmLogic Meson SoC i2s and spdif audio clks and Mali graphics clks
   - Allwinner H5 SoCs and PRCM hardware

  Updates:
   - Nvidia Tegra T210 cleanups and non-critical fixes
   - TI OMAP cleanups in preparation for clkctrl support
   - trivial fixes like kcalloc(), devm_* conversions, and seq_puts()
   - ZTE zx296718 SoC VGA clks
   - Rockchip clk-ids, fixups, and rename of rk1108 to rv1108
   - IDT VersaClock 5P49V5935 support
   - Renesas R-Car H3 and M3-W IMR clks and ES2.0 rev of R-Car H3
     support"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (151 commits)
  clk: x86: pmc-atom: Checking for IS_ERR() instead of NULL
  clk: ti: divider: try to fix ti_clk_register_divider
  clk: mvebu: Use kcalloc() in two functions
  clk: mvebu: Use kcalloc() in of_cpu_clk_setup()
  clk: nomadik: Delete error messages for a failed memory allocation in two functions
  clk: nomadik: Use seq_puts() in nomadik_src_clk_show()
  clk: Improve a size determination in two functions
  clk: Replace four seq_printf() calls by seq_putc()
  clk: si5351: Delete an error message for a failed memory allocation in si5351_i2c_probe()
  clk: si5351: Use devm_kcalloc() in si5351_i2c_probe()
  clk: at91: Use kcalloc() in of_at91_clk_pll_get_characteristics()
  reset: mediatek: Add MT2701 ethsys reset controller include file
  clk: mediatek: add mt2701 ethernet reset
  clk: hi6220: Add the hi655x's pmic clock
  clk: ti: fix building without legacy omap3
  clk: ti: fix linker error with !SOC_OMAP4
  clk: hi3620: Fix a typo in one variable name
  clk: hi3620: Delete error messages for a failed memory allocation in two functions
  clk: hi3620: Use kcalloc() in hi3620_mmc_clk_init()
  clk: hisilicon: Delete error messages for failed memory allocations in hisi_clk_init()
  ...
2017-05-10 13:38:18 -07:00
Linus Torvalds
c6778ff813 ARM: 64-bit DT updates
Device-tree updates for arm64 platforms. Just as with 32-bit, a bunch of smaller
 changes, but also some new platforms that are worth mentioning:
 
  * Rockchip RK3399 platforms for Chromebooks, including Samsung Chromebook
    Plus (Kevin)
  * Orange Pi PC2 (Allwinner H5)
  * Freescale LS2088A and LS1088A SoCs
  * Expanded support for Nvidia Tegra186 (and Jetson TX2)
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Merge tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM 64-bit DT updates from Olof Johansson:
 "Device-tree updates for arm64 platforms. Just as with 32-bit, a bunch
  of smaller changes, but also some new platforms that are worth
  mentioning:

   - Rockchip RK3399 platforms for Chromebooks, including Samsung
     Chromebook Plus (Kevin)

   - Orange Pi PC2 (Allwinner H5)

   - Freescale LS2088A and LS1088A SoCs

   - Expanded support for Nvidia Tegra186 (and Jetson TX2)"

* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (180 commits)
  arm64: dts: Add basic DT to support Spreadtrum's SP9860G
  arm64: dts: exynos: Use - instead of @ for DT OPP entries
  arm64: dts: exynos: Add support for s6e3hf2 panel device on TM2e board
  arm64: dts: juno: add information about L1 and L2 caches
  arm64: dts: juno: fix few unit address format warnings
  arm64: marvell: dts: enable the crypto engine on the Armada 8040 DB
  arm64: marvell: dts: enable the crypto engine on the Armada 7040 DB
  arm64: marvell: dts: add crypto engine description for 7k/8k
  arm64: dts: marvell: add sdhci support for Armada 7K/8K
  arm64: dts: marvell: add eMMC support for Armada 37xx
  arm64: dts: hisi: add pinctrl dtsi file for HiKey960 development board
  arm64: dts: hisi: add drive strength levels of the pins for Hi3660 SoC
  arm64: dts: hisi: enable the NIC and SAS for the hip07-d05 board
  arm64: dts: hisi: add SAS nodes for the hip07 SoC
  arm64: dts: hisi: add RoCE nodes for the hip07 SoC
  arm64: dts: hisi: add network related nodes for the hip07 SoC
  arm64: dts: hisi: add mbigen nodes for the hip07 SoC
  arm64: dts: rockchip: fix the memory size of PX5 Evaluation board
  arm64: dts: hisilicon: add dts files for hi3798cv200-poplar board
  dt-bindings: arm: hisilicon: add bindings for hi3798cv200 SoC and Poplar board
  ...
2017-05-09 10:07:33 -07:00
Linus Torvalds
0160e00ae8 ARM: SoC driver updates
Driver updates for ARM SoCs.
 
 * Reset subsystem, merged through arm-soc by tradition:
  - Make bool drivers explicitly non-modular
  - New support for i.MX7 and Arria10 reset controllers
 
 * PATA driver for Palmchip BK371 (acked by Tejun)
 
 * Power domain drivers for i.MX (GPC, GPCv2)
  - Moved out of mach-imx for GPC
  - Bunch of tweaks, fixes, etc
 
 * PMC support for Tegra186
 
 * SoC detection support for Renesas RZ/G1H and RZ/G1N
 
 * Move Tegra flow controller driver from mach directory to drivers/soc
  - (Power management / CPU power driver)
 
 * Misc smaller tweaks for other platforms
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for ARM SoCs:

  Reset subsystem, merged through arm-soc by tradition:
   - Make bool drivers explicitly non-modular
   - New support for i.MX7 and Arria10 reset controllers

  PATA driver for Palmchip BK371 (acked by Tejun)

  Power domain drivers for i.MX (GPC, GPCv2)
   - Moved out of mach-imx for GPC
   - Bunch of tweaks, fixes, etc

  PMC support for Tegra186

  SoC detection support for Renesas RZ/G1H and RZ/G1N

  Move Tegra flow controller driver from mach directory to drivers/soc
   - (Power management / CPU power driver)

  Misc smaller tweaks for other platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
  soc: pm-domain: Fix the mangled urls
  soc: renesas: rcar-sysc: Add support for R-Car H3 ES2.0
  soc: renesas: rcar-sysc: Add support for fixing up power area tables
  soc: renesas: Register SoC device early
  soc: imx: gpc: add workaround for i.MX6QP to the GPC PD driver
  dt-bindings: imx-gpc: add i.MX6 QuadPlus compatible
  soc: imx: gpc: add defines for domain index
  soc: imx: Add GPCv2 power gating driver
  dt-bindings: Add GPCv2 power gating driver
  ARM/clk: move the ICST library to drivers/clk
  ARM: plat-versatile: remove stale clock header
  ARM: keystone: Drop PM domain support for k2g
  soc: ti: Add ti_sci_pm_domains driver
  dt-bindings: Add TI SCI PM Domains
  PM / Domains: Do not check if simple providers have phandle cells
  PM / Domains: Add generic data pointer to genpd data struct
  soc/tegra: Add initial flowctrl support for Tegra132/210
  soc/tegra: flowctrl: Add basic platform driver
  soc/tegra: Move Tegra flowctrl driver
  ARM: tegra: Remove unnecessary inclusion of flowctrl header
  ...
2017-05-09 10:01:15 -07:00
Stephen Boyd
ad61dd303a scripts/spelling.txt: add regsiter -> register spelling mistake
This typo is quite common.  Fix it and add it to the spelling file so
that checkpatch catches it earlier.

Link: http://lkml.kernel.org/r/20170317011131.6881-2-sboyd@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:13 -07:00
Linus Torvalds
be580e7522 MMC core:
- Continue to re-factor code to prepare for eMMC CMDQ and blkmq support
  - Introduce queue semantics to prepare for eMMC CMDQ and blkmq support
  - Add helper functions to manage temporary enable/disable of eMMC CMDQ
  - Improve wait-busy detection for SDIO
 
 MMC host:
  - cavium: Add driver to support Cavium controllers
  - cavium: Extend Cavium driver to support Octeon SOCs and ThunderX SOCs
  - bcm2835: Add new driver for Broadcom BCM2835 controller
  - sdhci-xenon: Add driver to support Marvell Xenon SDHCI controller
  - sdhci-tegra: Add support for the Tegra186 variant
  - sdhci-of-esdhc: Support for UHS-I SD cards
  - sdhci-of-esdhc: Support for eMMC HS200 cards
  - sdhci-cadence: Add eMMC HS400 enhanced strobe support
  - sdhci-esdhc-imx: Reset tuning circuit when needed
  - sdhci-pci: Modernize and clean-up some PM related code
  - sdhci-pci: Avoid re-tuning at runtime PM for some Intel devices
  - sdhci-pci|acpi: Use aggressive PM for some Intel BYT controllers
  - sdhci: Re-factoring and modernizations
  - sdhci: Optimize delay loops
  - sdhci: Improve register dump print format
  - sdhci: Add support for the Command Queue Engine
  - meson-gx: Various improvements and clean-ups
  - meson-gx: Add support for CMD23
  - meson-gx: Basic tuning support to avoid CRC errors
  - s3cmci: Enable probing via DT
  - mediatek: Improve tuning support for eMMC HS200 and HS400 mode
  - tmio: Improve DMA support
  - tmio: Use correct response for CMD12
  - dw_mmc: Minor improvements and clean-ups
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Merge tag 'mmc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Continue to re-factor code to prepare for eMMC CMDQ and blkmq support
   - Introduce queue semantics to prepare for eMMC CMDQ and blkmq support
   - Add helper functions to manage temporary enable/disable of eMMC CMDQ
   - Improve wait-busy detection for SDIO

  MMC host:
   - cavium: Add driver to support Cavium controllers
   - cavium: Extend Cavium driver to support Octeon and ThunderX SOCs
   - bcm2835: Add new driver for Broadcom BCM2835 controller
   - sdhci-xenon: Add driver to support Marvell Xenon SDHCI controller
   - sdhci-tegra: Add support for the Tegra186 variant
   - sdhci-of-esdhc: Support for UHS-I SD cards
   - sdhci-of-esdhc: Support for eMMC HS200 cards
   - sdhci-cadence: Add eMMC HS400 enhanced strobe support
   - sdhci-esdhc-imx: Reset tuning circuit when needed
   - sdhci-pci: Modernize and clean-up some PM related code
   - sdhci-pci: Avoid re-tuning at runtime PM for some Intel devices
   - sdhci-pci|acpi: Use aggressive PM for some Intel BYT controllers
   - sdhci: Re-factoring and modernizations
   - sdhci: Optimize delay loops
   - sdhci: Improve register dump print format
   - sdhci: Add support for the Command Queue Engine
   - meson-gx: Various improvements and clean-ups
   - meson-gx: Add support for CMD23
   - meson-gx: Basic tuning support to avoid CRC errors
   - s3cmci: Enable probing via DT
   - mediatek: Improve tuning support for eMMC HS200 and HS400 mode
   - tmio: Improve DMA support
   - tmio: Use correct response for CMD12
   - dw_mmc: Minor improvements and clean-ups"

* tag 'mmc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (148 commits)
  mmc: sdhci-of-esdhc: limit SD clock for ls1012a/ls1046a
  mmc: sdhci-of-esdhc: poll ESDHC_CLOCK_STABLE bit with udelay
  mmc: sdhci-xenon: Fix default value of LOGIC_TIMING_ADJUST for eMMC5.0 PHY
  mmc: sdhci-xenon: Fix the work flow in xenon_remove().
  MIPS: Octeon: cavium_octeon_defconfig: Enable Octeon MMC
  mmc: sdhci-xenon: Remove redundant dev_err call in get_dt_pad_ctrl_data()
  mmc: cavium: Use module_pci_driver to simplify the code
  mmc: cavium: Add MMC support for Octeon SOCs.
  mmc: cavium: Fix detection of block or byte addressing.
  mmc: core: Export API to allow hosts to get the card address
  mmc: sdio: Fix sdio wait busy implement limitation
  mmc: sdhci-esdhc-imx: reset tuning circuit when power on mmc card
  clk: apn806: fix spelling mistake: "mising" -> "missing"
  mmc: sdhci-of-esdhc: add delay between tuning cycles
  mmc: sdhci: Control the delay between tuning commands
  mmc: sdhci-of-esdhc: add tuning support
  mmc: sdhci-of-esdhc: add support for signal voltage switch
  mmc: sdhci-of-esdhc: add peripheral clock support
  mmc: sdhci-pci: Allow for 3 bytes from Intel DSM
  mmc: cavium: Fix a shift wrapping bug
  ...
2017-05-02 17:34:32 -07:00
Linus Torvalds
5a0387a8a8 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 4.12:

  API:
   - Add batch registration for acomp/scomp
   - Change acomp testing to non-unique compressed result
   - Extend algorithm name limit to 128 bytes
   - Require setkey before accept(2) in algif_aead

  Algorithms:
   - Add support for deflate rfc1950 (zlib)

  Drivers:
   - Add accelerated crct10dif for powerpc
   - Add crc32 in stm32
   - Add sha384/sha512 in ccp
   - Add 3des/gcm(aes) for v5 devices in ccp
   - Add Queue Interface (QI) backend support in caam
   - Add new Exynos RNG driver
   - Add ThunderX ZIP driver
   - Add driver for hardware random generator on MT7623 SoC"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (101 commits)
  crypto: stm32 - Fix OF module alias information
  crypto: algif_aead - Require setkey before accept(2)
  crypto: scomp - add support for deflate rfc1950 (zlib)
  crypto: scomp - allow registration of multiple scomps
  crypto: ccp - Change ISR handler method for a v5 CCP
  crypto: ccp - Change ISR handler method for a v3 CCP
  crypto: crypto4xx - rename ce_ring_contol to ce_ring_control
  crypto: testmgr - Allow ecb(cipher_null) in FIPS mode
  Revert "crypto: arm64/sha - Add constant operand modifier to ASM_EXPORT"
  crypto: ccp - Disable interrupts early on unload
  crypto: ccp - Use only the relevant interrupt bits
  hwrng: mtk - Add driver for hardware random generator on MT7623 SoC
  dt-bindings: hwrng: Add Mediatek hardware random generator bindings
  crypto: crct10dif-vpmsum - Fix missing preempt_disable()
  crypto: testmgr - replace compression known answer test
  crypto: acomp - allow registration of multiple acomps
  hwrng: n2 - Use devm_kcalloc() in n2rng_probe()
  crypto: chcr - Fix error handling related to 'chcr_alloc_shash'
  padata: get_next is never NULL
  crypto: exynos - Add new Exynos RNG driver
  ...
2017-05-02 15:53:46 -07:00
Dan Carpenter
0119dc6132 clk: x86: pmc-atom: Checking for IS_ERR() instead of NULL
clkdev_hw_create() returns NULLs on error, it doesn't return error
pointers.

Fixes: 41ee7caf59 ("clk: x86: add "mclk" alias for Baytrail/Cherrytrail")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-05-01 11:13:25 -07:00
Arnd Bergmann
3417f3528a clk: ti: divider: try to fix ti_clk_register_divider
Commit 6c0afb5039 ("clk: ti: convert to use proper register
definition for all accesses") converted all register accesses in
the TI clk driver to use a proper struct instead of a void
pointer casted struct that fits into a u32. Unfortunately, it
missed a conversion here in the didivder code, leading to a
compiler warning like so:

drivers/clk/ti/divider.c: In function 'ti_clk_register_divider':
drivers/clk/ti/divider.c:460:8: error: 'reg' may be used uninitialized in this function [-Werror=maybe-uninitialized]

Treating a 'u32' variable as a structure leads to a stack
overflow here, and the register address we pass down is never
initialized. Convert this part of the code as well so things
work properly.

Fixes: 6c0afb5039 ("clk: ti: convert to use proper register definition for all accesses")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[sboyd@codeaurora.org: Fixed fixes tag, rewrote commit message,
s/reg_setup/reg/]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-28 11:07:09 -07:00
Arnd Bergmann
36c02d0be4 clk: sunxi-ng: always select CCU_GATE
When the base driver is enabled but all SoC specific drivers are turned
off, we now get a build error after code was added to always refer to the
clk gates:

drivers/clk/built-in.o: In function `ccu_pll_notifier_cb':
:(.text+0x154f8): undefined reference to `ccu_gate_helper_disable'
:(.text+0x15504): undefined reference to `ccu_gate_helper_enable'

This changes the Kconfig to always require the gate code to be built-in
when CONFIG_SUNXI_CCU is set.

Fixes: 02ae2bc6fe ("clk: sunxi-ng: Add clk notifier to gate then ungate PLL clocks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-28 10:47:21 -07:00
Colin Ian King
a82d12b8d5 clk: apn806: fix spelling mistake: "mising" -> "missing"
trivial fix to spelling mistake in dev_warn message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:42:28 +02:00
Gregory CLEMENT
b92a3bcc7c clk: apn806: Turn the eMMC clock as optional for dts backwards compatible
First version of the binding didn't have the eMMC clock. This patch
allows to not registering the eMMC clock if it is not present in the
device tree. Then the device tree can be backwards compatible.

Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:42:13 +02:00
Konstantin Porotchkin
a8309cedcd clk: apn806: Add eMMC clock to system controller driver
Add fixed clock of 400MHz to system controller driver.  This clock is
used as SD/eMMC clock source.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Reviewed-by: Omri Itach <omrii@marvell.com>
Reviewed-by: Hanna Hawa <hannah@marvell.com>
[fixed up conflicts, added error handling --rmk]
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:42:12 +02:00
Markus Elfring
ee7d74339d clk: mvebu: Use kcalloc() in two functions
* Multiplications for the size determination of memory allocations
  indicated that array data structures should be processed.
  Thus use the corresponding function "kcalloc".

  This issue was detected by using the Coccinelle software.

* Replace the specification of data types by pointer dereferences
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:49:34 -07:00
Markus Elfring
23826e240a clk: mvebu: Use kcalloc() in of_cpu_clk_setup()
Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kcalloc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:49:13 -07:00
Markus Elfring
24f8186eb8 clk: nomadik: Delete error messages for a failed memory allocation in two functions
The script "checkpatch.pl" pointed information out like the following.

WARNING: Possible unnecessary 'out of memory' message

Thus remove such statements here.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:47:14 -07:00
Markus Elfring
add3151133 clk: nomadik: Use seq_puts() in nomadik_src_clk_show()
A string which did not contain a data format specification should be put
into a sequence. Thus use the corresponding function "seq_puts".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:47:10 -07:00
Markus Elfring
1808a32019 clk: Improve a size determination in two functions
Replace the specification of two data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:47:02 -07:00
Markus Elfring
4d32758671 clk: Replace four seq_printf() calls by seq_putc()
Four single characters should be put into a sequence.
Thus use the corresponding function "seq_putc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:45:24 -07:00
Markus Elfring
56f2150a84 clk: si5351: Delete an error message for a failed memory allocation in si5351_i2c_probe()
The script "checkpatch.pl" pointed information out like the following.

* CHECK: Comparison to NULL could be written "!drvdata"

  Thus adjust this expression.

* WARNING: Possible unnecessary 'out of memory' message

  Thus remove such a statement here.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:44:54 -07:00
Markus Elfring
9a78b16972 clk: si5351: Use devm_kcalloc() in si5351_i2c_probe()
Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "devm_kcalloc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:44:42 -07:00
Markus Elfring
1e5c844441 clk: at91: Use kcalloc() in of_at91_clk_pll_get_characteristics()
Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kcalloc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:20:34 -07:00
John Crispin
db9c4a1e65 clk: mediatek: add mt2701 ethernet reset
The ethernet clock core has a reset register that is currently not exposed
to the user. Fix this by adding the missing registration code.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:20:33 -07:00
Stephen Boyd
de000a88c1 Allwinner clock changes, take 2
A few minor bug and comment fixes, plus some fixes for the PRCM CCU driver
 merged in the prior pull request
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Merge tag 'sunxi-clk-for-4.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into HEAD

Pull Allwinner clock changes, take 2 from Maxime Ripard:

A few minor bug and comment fixes, plus some fixes for the PRCM CCU driver
merged in the prior pull request

* tag 'sunxi-clk-for-4.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: a80: Fix audio PLL comment not matching actual code
  clk: sunxi-ng: Fix round_rate/set_rate multiplier minimum mismatch
  clk: sunxi-ng: use 1 as fallback for minimum multiplier
  clk: sunxi-ng: fix PRCM CCU CLK_NUMBER value
  clk: sunxi-ng: fix PRCM CCU ir clk parent
2017-04-21 19:19:46 -07:00
Daniel Lezcano
b68adc23bc clk: hi6220: Add the hi655x's pmic clock
The hi655x multi function device is a PMIC providing regulators.

The PMIC also provides a clock for the WiFi and the Bluetooth, let's implement
this clock in order to add it in the hi655x MFD and allow proper wireless
initialization.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
[sboyd@codeaurora.org: Remove clkdev usage]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:18:53 -07:00
Arnd Bergmann
fc04f27dfc clk: ti: fix building without legacy omap3
When CONFIG_ATAGS or CONFIG_OMAP3 is disabled, we get a build error:

In file included from include/linux/clk-provider.h:15:0,
                 from drivers/clk/ti/clk.c:19:
drivers/clk/ti/clk.c: In function 'ti_clk_add_aliases':
drivers/clk/ti/clk.c:438:29: error: 'simple_clk_match_table' undeclared (first use in this function); did you mean 'simple_attr_write'?

Moving the match table down fixes it.

Fixes: c17435c56b ("clk: ti: add API for creating aliases automatically for simple clock types")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:01:39 -07:00
Arnd Bergmann
2158a09395 clk: ti: fix linker error with !SOC_OMAP4
When none of the OMAP4-generation SoCs are enabled, we run into a link
error for am43xx/am43xx:

drivers/clk/ti/dpll.o: In function `of_ti_am3_dpll_x2_setup':
dpll.c:(.init.text+0xd8): undefined reference to `clkhwops_omap4_dpllmx'

This is easily fixed by adding another #ifdef.

While looking at the code, I also spotted another problem with the
assignment of hw_ops variable that is not used again later. I'm
changing this to setting clk_hw->ops instead, which I guess is what
was intended here.

Fixes: 473adbf4e0 ("clk: ti: dpll44xx: fix clksel register initialization")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tero Kristo <t-kristo@ti.com>
[sboyd@codeaurora.org: Replaced fixes tag with correct one]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:01:18 -07:00
Markus Elfring
34675d6703 clk: hi3620: Fix a typo in one variable name
The script "checkpatch.pl" pointed information out like the following.

CHECK: 'seperated' may be misspelled - perhaps 'separated'?

Thus rename the affected variable.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 11:29:49 -07:00
Markus Elfring
3cda284b77 clk: hi3620: Delete error messages for a failed memory allocation in two functions
The script "checkpatch.pl" pointed information out like the following.

WARNING: Possible unnecessary 'out of memory' message

Thus remove such statements here.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 11:28:04 -07:00
Markus Elfring
781de7ade6 clk: hi3620: Use kcalloc() in hi3620_mmc_clk_init()
* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kcalloc".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 10:48:04 -07:00
Markus Elfring
840e56326f clk: hisilicon: Delete error messages for failed memory allocations in hisi_clk_init()
The script "checkpatch.pl" pointed information out like the following.

WARNING: Possible unnecessary 'out of memory' message

Thus remove such statements here.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 10:45:52 -07:00
Markus Elfring
8d9bdc46c7 clk: hisilicon: Use devm_kmalloc_array() in hisi_clk_alloc()
* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "devm_kmalloc_array".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 10:45:12 -07:00
Markus Elfring
7b9bae176a clk: hisilicon: Use kcalloc() in hisi_clk_init()
* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kcalloc".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 10:20:14 -07:00
Kuninori Morimoto
b3da896e2f clk: cs2000: select 12.20 High Accuracy on LFRatioCfg
cs2000 can select Static/Dynamic ratio based Frequency Synthesizer
Mode, it can select 20.12 High Multiplier interpret for 32-bit
User Defined Ratio if Dynamic ratio mode. Otherwise it should select
12.20 High Accuracy mode.
Current cs2000 is supporting Static ratio mode only, so it should
select 12.20 High Accuracy mode, not 20.12 High Multiplier mode.
This patch fixes it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 10:18:55 -07:00
Kuninori Morimoto
b295a015cd clk: cs2000: tidyup DEVICE_CFG2 settings
DEVICE_CFG2 can select ratio from user defined ratio and LOCKCLK is
for it. But current driver sets fixed 0 value. This patch fixes it.
Note is that current cs2000 driver is using/supporting only ratio0
(= ch0) now.

DEVICE_CFG2 can select STATIC/DYNAMIC ratio mode, and current cs2000
driver is selecting STATIC mode, but it was not understandable on
current code. This patch also solve this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 10:18:53 -07:00
Kuninori Morimoto
d127967a7b clk: cs2000: enable clock skipping mode
CLK_IN skipping mode allows the PLL to maintain lock even when the
CLK_IN signal has missing pulses for up to 20 ms (t CS) at a time.
This patch enables it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 10:18:52 -07:00
Stanimir Varbanov
4a43e35d19 clk: qcom: add parent for venus core0 and core1 gdsc's
Make venus_gdsc parent of venus gdsc core0 and core1.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:55:58 -07:00
Pierre-Louis Bossart
41ee7caf59 clk: x86: add "mclk" alias for Baytrail/Cherrytrail
Due to timing requirements, TI and Conexant manage the audio
reference clock from their ASoC codec drivers using the "mclk"
string. This patch adds another lookup for the "pmc_plt_clk_3"
clock to avoid Intel-specific tests in those codec drivers and
use code as-is.

To avoid a leak, clk_add_alias() is not used in this patch.
Instead the lookup is created manually as part of the .probe()
step and dropped in the .remove() step.

"pmc_plt_clk_3" is used exclusively for audio on all known
Baytrail/CherryTrail designs and is e.g. routed on the MCLK
(pin 26) of the MinnowBoardMAX Turbot LSE connector.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:52:32 -07:00
Bharat Kumar Reddy Gooty
8973aa4aec clk: ns2: Correct SDIO bits
Corrected the bits for power and iso.

Signed-off-by: Bharat Kumar Reddy Gooty <bharat.gooty@broadcom.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Fixes: f7225a83 ("clk: ns2: add clock support for Broadcom Northstar 2 SoC")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:50:39 -07:00
Srinivas Kandagatla
46a7253df4 clk: qcom: clk-smd-rpm: fix rate for branch clks during handoff
rpm branch clk rate should requested as either 0 or 1 but not INT_MAX.
This patch fixes rate request for branch clocks during clk handoff.

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:50:26 -07:00
Stefan Agner
e24f5287cd clk: imx7d: fix USDHC NAND clock
The USDHC NAND root clock is not gated by any CCM clock gate. Remove
the bogus gate definition.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:44:14 -07:00
Thomas Petazzoni
1b21401307 clk: spear: fix ADC clock definition on SPEAr600
There is no SPEAr600 device named "adc". Instead, the description of the
ADC was recently added to the Device Tree, and the device name is
"d820b000.adc", so we should associate the ADC gatable clock to this
device name.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:27:52 -07:00
Kevin-CW Chen
96596aa066 clk: mediatek: add clk support for MT6797
Add MT6797 clock support, include topckgen, apmixedsys, infracfg
and subsystem clocks

Signed-off-by: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Tested-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:20:21 -07:00
Dong Aisheng
40e00eff79 clk: imx7d: add the missing ipg_root_clk
Add the missing ipg_root_clk which actually is already used by many
orphan clks in current tree.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Tested-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:10:23 -07:00
Dong Aisheng
9a6e904226 clk: clk-imx7d: fix ahb clk definition
MX7D ahb clk actually has no LPCG gate, current LPCG offset 0x4200
used actually is for adc, not ahb. After fix, correct ocram_s_clk
parent accordingly as well.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Tested-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:10:12 -07:00
Alexey Firago
1193e14fdd clk: vc5: Add support for IDT VersaClock 5P49V5935
Update IDT VersaClock 5 driver to support 5P49V5935. This chip has
two clock inputs (internal XTAL or external CLKIN), four fractional
dividers (FODs) and five clock outputs (four universal clock outputs
and one reference clock output at OUT0_SELB_I2C).

Current driver supports up to 2 FODs and up to 3 clock outputs. This
patch sets max number of supported FODs to 4 and max number of supported
clock outputs to 5.

Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:08:59 -07:00
Alexey Firago
9adddb01ce clk: vc5: Add structure to describe particular chip features
Introduce vc5_chip_info structure to describe features of a particular
VC5 chip (id, number of FODs, number of outputs, flags).
For now flags are only used to indicate if chip has internal XTAL.
vc5_chip_info is set on probe from the matched of_device_id->data.

Also add defines to specify maximum number of FODs and clock outputs
supported by the driver.

With these changes it should be easier to extend driver to support
more VC5 models.

Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:08:29 -07:00
Stephen Boyd
8062b4aafc Allwinner clock patches for 4.12
Support for the new H5 SoC and the PRCM block found in a number of SoCs as
 well, plus the usual chunk of fixes and minor enhancements.
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Merge tag 'sunxi-clk-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull Allwinner clock patches for 4.12 from Maxime Ripard:

Support for the new H5 SoC and the PRCM block found in a number of SoCs as
well, plus the usual chunk of fixes and minor enhancements.

* tag 'sunxi-clk-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: Display index when clock registration fails
  clk: sunxi-ng: a33: Add offset and minimum value for DDR1 PLL N factor
  clk: sunxi-ng: a80: Remodel CPU cluster PLLs as N-type multiplier clocks
  clk: sunxi-ng: mult: Support PLL lock detection
  clk: sunxi-ng: add support for PRCM CCUs
  dt-bindings: update device tree binding for Allwinner PRCM CCUs
  clk: sunxi-ng: sun5i: Fix mux width for csi clock
  clk: sunxi-ng: tighten SoC deps on explicit AllWinner SoCs
  clk: sunxi-ng: add Allwinner H5 CCU support for H3 CCU driver
  clk: sunxi-ng: gate: Support common pre-dividers
2017-04-19 09:02:00 -07:00
Stephen Boyd
e609f9f23e Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: sunxi-ng: a33: gate then ungate PLL CPU clk after rate change
  clk: sunxi-ng: Add clk notifier to gate then ungate PLL clocks
  clk: sunxi-ng: fix build failure in ccu-sun9i-a80 driver
  clk: sunxi-ng: fix build error without CONFIG_RESET_CONTROLLER
  clk: stm32f4: fix: exclude values 0 and 1 for PLLQ
2017-04-17 11:29:18 -07:00
Stephen Boyd
e7590308d1 Allwinner clock fixes for 4.11
Two build errors fixes for the sunxi-ng drivers.
 
 The two other patches fix random CPU crashes happening on the A33 since
 CPUFreq has been enabled in 4.11.
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Merge tag 'sunxi-clk-fixes-for-4.11-2-bis' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes

Pull Allwinner clock fixes for 4.11 from Maxime Ripard:

Two build errors fixes for the sunxi-ng drivers.

The two other patches fix random CPU crashes happening on the A33 since
CPUFreq has been enabled in 4.11.

* tag 'sunxi-clk-fixes-for-4.11-2-bis' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: a33: gate then ungate PLL CPU clk after rate change
  clk: sunxi-ng: Add clk notifier to gate then ungate PLL clocks
  clk: sunxi-ng: fix build failure in ccu-sun9i-a80 driver
  clk: sunxi-ng: fix build error without CONFIG_RESET_CONTROLLER
2017-04-17 11:04:12 -07:00
Chen-Yu Tsai
7149c1becd clk: sunxi-ng: a80: Fix audio PLL comment not matching actual code
We ignore the d1 and d2 dividers in the audio PLL, and force them to
1 (register value 0) at probe time. However the comment preceding the
audio PLL definition says we enforce the default value, which is not
the same.

Fix the preceding comment to match what we do in code.

Fixes: b8eb71dcdd ("clk: sunxi-ng: Add A80 CCU")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13 14:09:30 +02:00
Chen-Yu Tsai
95ad8ed9c8 clk: sunxi-ng: Fix round_rate/set_rate multiplier minimum mismatch
In commit 2beaa601c8 ("clk: sunxi-ng: Implement minimum for
multipliers"), the multiplier minimums in the set_rate callback
for NM and NKMP style clocks were not updated.

This patch fixes them to match their round_rate callbacks.

Fixes: 2beaa601c8 ("clk: sunxi-ng: Implement minimum for multipliers")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13 14:09:28 +02:00
Chen-Yu Tsai
4162c5ce52 clk: sunxi-ng: use 1 as fallback for minimum multiplier
A zero multiplier does not make sense for clocks.

Use 1 as the minimum when a multiplier minimum isn't specified.

Fixes: 2beaa601c8 ("clk: sunxi-ng: Implement minimum for multipliers")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13 14:09:25 +02:00
Chen-Yu Tsai
372fa10172 clk: sunxi-ng: a33: gate then ungate PLL CPU clk after rate change
This patch utilizes the new PLL clk notifier to gate then ungate the
PLL CPU clock after rate changes. This should mitigate the system
hangs observed after the introduction of cpufreq for the A33.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13 11:22:04 +02:00
Chen-Yu Tsai
02ae2bc6fe clk: sunxi-ng: Add clk notifier to gate then ungate PLL clocks
In common PLL designs, changes to the dividers take effect almost
immediately, while changes to the multipliers (implemented as
dividers in the feedback loop) take a few cycles to work into
the feedback loop for the PLL to stablize.

Sometimes when the PLL clock rate is changed, the decrease in the
divider is too much for the decrease in the multiplier to catch up.
The PLL clock rate will spike, and in some cases, might lock up
completely. This is especially the case if the divider changed is
the pre-divider, which affects the reference frequency.

This patch introduces a clk notifier callback that will gate and
then ungate a clk after a rate change, effectively resetting it,
so it continues to work, despite any possible lockups. Care must
be taken to reparent any consumers to other temporary clocks during
the rate change, and that this notifier callback must be the first
to be registered.

This is intended to fix occasional lockups with cpufreq on newer
Allwinner SoCs, such as the A33 and the H3. Previously it was
thought that reparenting the cpu clock away from the PLL while
it stabilized was enough, as this worked quite well on the A31.

On the A33, hangs have been observed after cpufreq was recently
introduced. With the H3, a more thorough test [1] showed that
reparenting alone isn't enough. The system still locks up unless
the dividers are limited to 1.

A hunch was if the PLL was stuck in some unknown state, perhaps
gating then ungating it would bring it back to normal. Tests
done by Icenowy Zheng using Ondrej's test firmware shows this
to be a valid solution.

[1] http://www.spinics.net/lists/arm-kernel/msg552501.html

Reported-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Icenowy Zheng <icenowy@aosc.io>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13 11:22:02 +02:00
Tobias Regnery
e87741ac6c clk: sunxi-ng: fix build failure in ccu-sun9i-a80 driver
The ccu-sun9i-a80 driver uses the ccu_mult_ops struct, but unlike the other
users it doesen't select the corresponding Kconfig symbol under which the
struct is compiled in.

This results in the following link error with CONFIG_SUN9I_A80_CCU=y and
CONFIG_SUNXI_CCU_MULT=n:

drivers/built-in.o:(.data+0x2d638): undefined reference to 'ccu_mult_ops'

Fix this by explicitly selecting CONFIG_SUNXI_CCU_MULT like the other
users of the struct.

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13 11:10:41 +02:00
Tobias Regnery
aa01338c01 clk: sunxi-ng: fix build error without CONFIG_RESET_CONTROLLER
With CONFIG_RESET_CONTROLLER=n we get the following link error in the
sunxi-ng clk driver:

drivers/built-in.o: In function `sunxi_ccu_probe':
mux-core.c:(.text+0x12fe68): undefined reference to 'reset_controller_register'
mux-core.c:(.text+0x12fe68): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol 'reset_controller_register'

Fix this by adding the appropriate select statement.

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13 11:10:40 +02:00
Kuninori Morimoto
83dd720da6 clk: cs2000: use existing priv_to_dev() to getting struct device
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:54:48 +02:00
Michael Turquette
a507c57dd1 2nd Amlogic clock driver update for 4.12:
* Protect against holes in onecell_data
 * Fix divison by zero and overflow in the mpll driver
 * Add audio clock divider driver for i2s clocks
 * Add i2s and spdif master clocks
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Merge tag 'meson-clk-for-4.12' of git://github.com/BayLibre/clk-meson into clk-next

Pull AmLogic clk driver updates from Jerome Brunet:

2nd Amlogic clock driver update for 4.12:
* Protect against holes in onecell_data
* Fix divison by zero and overflow in the mpll driver
* Add audio clock divider driver for i2s clocks
* Add i2s and spdif master clocks
2017-04-12 18:53:16 +02:00
Michael Turquette
0d7a5328db Amlogic clock driver updates for v4.12
- meson8: add some new PLLs
 - new clocks for Mali
 - misc fixes.
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Merge tag 'amlogic-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into clk-next

Same great taste as the previous pull request, but now with 50% less DT
bikeshedding!

Amlogic clock driver updates for v4.12
- meson8: add some new PLLs
- new clocks for Mali
- misc fixes.
2017-04-12 18:51:43 +02:00
Peter De Schrijver
17c34c5667 clk: aggregate return codes of notify chains
In case there are multiple notify chains for the same clocks (because they
were registered by different users), we need to propagate potential failure
of any single one of them to the caller. Otherwise we eg risk violating the
V/f curve when a notifier is used for DVFS.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:41 +02:00
Peter De Schrijver
92031575c3 clk: add clk_possible_parents debugfs file
For validation purposes, it's often useful to be able to retrieve the list
of possible parents in userspace. Add a debugfs file for every clock which
has more than 1 possible parent.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
[sboyd@codeaurora.org: Remove useless cast from void and extra
newline]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:38 +02:00
Robin van der Gracht
1905719556 clk: imx: correct uart4_serial clock name in driver for i.MX6UL
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:36 +02:00
Stephen Boyd
15a2a14b23 clk: zte: Mark pll config tables as const
These should be const.

Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:34 +02:00
Shawn Guo
a90099da3c clk: zte: add pll_vga clock for zx296718
It adds zx296718 pll_vga clock for VGA support, so that VGA device can
get required pixel rate from clock driver for different display mode.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:33 +02:00
Shawn Guo
ee249cbe42 clk: zte: pd_bit is not 0 on zx296718
The bit 0 of PLL_CFG0 register is not powerdown on zx296718, but part of
of postdiv2 field.  The consequence is that functions like hw_to_idx()
and zx_pll_enable() will end up tampering the postdiv2 of the PLL.

Let's fix it by defining pd_bit 0xff which is obviously invalid for a
bit position and having PLL driver check the validity before operating
on the bit.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:31 +02:00
Shawn Guo
5790d80176 clk: zte: set CLK_SET_RATE_PARENT for a few zx296718 clocks
To support VOU VGA display driver with different modes, we need to set
flag for a few clocks, so that clk_set_rate() call in VOU driver can get
VGA device desired pixel rate.

While at it, the divider between pll_vga and clk_vga gets corrected, as
it's 1:1 instead of 1:2.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:29 +02:00
Robin van der Gracht
cf091ee994 clk: imx: clk-imx6ul: The i.mx6ul has no aips_tz3 clock
The clock was mapped on CG15 (gpio2_clocks) in the CCRG0 register.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:51:27 +02:00
Michael Turquette
72be2d5f4a clk: tegra: Changes for v4.12-rc1
This contains a bunch of fixes and cleanups, mostly to the Tegra210
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Merge tag 'tegra-for-4.12-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next

Pull Tegra clk driver updates from Thierry Reding:

This contains a bunch of fixes and cleanups, mostly to the Tegra210
clock driver.

* tag 'tegra-for-4.12-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (24 commits)
  clk: tegra: Don't reset PLL-CX if it is already enabled
  clk: tegra: Add missing Tegra210 clocks
  clk: tegra: Propagate clk_out_x rate to parent
  clk: tegra: Fix build warnings on Tegra20/Tegra30
  clk: tegra: Mark TEGRA210_CLK_DBGAPB as always on
  clk: tegra: Add SATA seq input control
  clk: tegra: Add Tegra210 special resets
  clk: tegra: Rework pll_u
  clk: tegra: Implement reset control reset
  clk: tegra: Fix disable unused for clocks sharing enable bit
  clk: tegra: Handle UTMIPLL IDDQ
  clk: tegra: Add aclk
  clk: tegra: Add super clock mux/divider
  clk: tegra: Define Tegra210 DMIC clocks
  clk: tegra: Fix constness for peripheral clocks
  clk: tegra: Define Tegra210 DMIC sync clocks
  clk: tegra: Add CEC clock
  clk: tegra: Fix type for m field
  clk: tegra: Correct tegra210_pll_fixed_mdiv_cfg rate calculation
  clk: tegra: Don't warn for PLL defaults unnecessarily
  ...
2017-04-12 18:51:01 +02:00
Kuninori Morimoto
1f9dfd7ac7 cs-2000-cp: keep Reserved bit on each register
Thus CS2000 datasheet is indicating below, this patch
follows it.

WARNING: All "Reserved" registers must maintain their default
         state to ensure proper functional operation.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:50:59 +02:00
Rajendra Nayak
a62ca337b3 clk: qcom: msm8996: Fix the vfe1 powerdomain name
Fix a typo which caused both vfe0 and vfe1 powerdomains to be
named as vfe0.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Fixes: 7e824d5079 ("clk: qcom: gdsc: Add mmcc gdscs for msm8996 family")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:50:57 +02:00
Gabriel Fernandez
ac03d8b3a5 clk: stm32f4: fix timeout management for pll and ready gate
Use a classic polling to test bit ready.
And the shift of the bit ready of LSE & LSI were wrongs.

Fixes: 861adc44d2 ("clk: stm32f4: Add LSI & LSE clocks")
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:50:56 +02:00
Ray Jui
d5a0945fdf clk: iproc: Remove redundant check
Remove the redundant check of 'rate' in the if statement of the
'pll_set_rate' function

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Fixes: 5fe225c105 ("clk: iproc: add initial common clock support")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:50:54 +02:00
Michael Turquette
5579836026 General rockchip clock changes for 4.12. Contains some new clock-ids
as well as fixups of the clock-ids on rk3368 timers, which were unused
 and completely wrong (more and differently named timers).
 Also there is one new clock on rk3328 using the muxgrf type, a fix for
 pll enablement which should wait for the pll to lock before continuing,
 some more critical clocks and the rename of the rk1108 to rv1108, as the
 soc seems to have been using a preliminary name before its actual release.
 The plan is to have the driver changes (pinctrl, clk) go through the
 respective maintainer trees and once everything landed in mainline do
 the rename of the devicetree files. With the dts-include change in the
 clock rename, we also keep everything compiling and thus bisectability.
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Merge tag 'v4.12-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull rockchip clk driver updates from Heiko Stuebner:

  General rockchip clock changes for 4.12. Contains some new clock-ids
  as well as fixups of the clock-ids on rk3368 timers, which were unused
  and completely wrong (more and differently named timers).
  Also there is one new clock on rk3328 using the muxgrf type, a fix for
  pll enablement which should wait for the pll to lock before continuing,
  some more critical clocks and the rename of the rk1108 to rv1108, as the
  soc seems to have been using a preliminary name before its actual release.
  The plan is to have the driver changes (pinctrl, clk) go through the
  respective maintainer trees and once everything landed in mainline do
  the rename of the devicetree files. With the dts-include change in the
  clock rename, we also keep everything compiling and thus bisectability.

* tag 'v4.12-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: add pll_wait_lock for pll_enable
  clk: rockchip: rename RK1108 to RV1108
  dt-bindings: rk1108-cru: rename RK1108 to RV1108
  clk: rockchip: mark some rk3368 core-clks as critical
  clk: rockchip: export SCLK_TIMERXX id for timers on rk3368
  clk: rockchip: describe clk_gmac using the new muxgrf type on rk3328
  clk: rockchip: add clock ids for timer10-15 of RK3368 SoCs
  clk: rockchip: fix up rk3368 timer-ids
  clk: rockchip: add rk3328 clk_mac2io_ext ID
  clk: rockchip: Set "ignore unused" for PMU M0 clocks on rk3399
2017-04-12 18:50:34 +02:00
Michael Turquette
0d4ae36062 clk: renesas: Updates for v4.12 (take two)
- Add support for the Clock Pulse Generator / Module Standby and
     Software Reset module on revision ES2.0 of the R-Car H3 SoC, which
     differs from ES1.x in some areas.
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Merge tag 'clk-renesas-for-v4.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull Renesas clk driver updates from Geert Uytterhoeven:

  - Add support for the Clock Pulse Generator / Module Standby and
    Software Reset module on revision ES2.0 of the R-Car H3 SoC, which
    differs from ES1.x in some areas.
  - Add IMR clocks for R-Car H3 and M3-W,
  - Add workaround for PLL0/2/4 errata on R-Car H3 ES1.0,
  - Small fixes and cleanups.

* tag 'clk-renesas-for-v4.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: rcar-gen3-cpg: Add support for RCLK on R-Car H3 ES2.0
  clk: renesas: r8a7795: Add support for R-Car H3 ES2.0
  clk: renesas: Add r8a7795 ES2.0 CPG Core Clock Definitions
  clk: renesas: cpg-mssr: Add support for fixing up clock tables
  clk: renesas: rcar-gen3: Add workaround for PLL0/2/4 errata on H3 ES1.0
  clk: renesas: rcar-gen3-cpg: Pass mode pins to rcar_gen3_cpg_init()
  clk: renesas: r8a7796: Reformat core clock table
  clk: renesas: r8a7795: Reformat core clock table
  clk: renesas: r8a7796: Correct name of watchdog clock
  clk: renesas: r8a7795: Correct name of watchdog clock
  clk: renesas: r8a7795: Correct parent clock and sort order for Audio DMACs
  clk: renesas: r8a7796: Add IMR clocks
  clk: renesas: r8a7795: Add IMR clocks
2017-04-12 18:49:36 +02:00
Stephen Boyd
f37753e2a3 Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: stm32f4: fix: exclude values 0 and 1 for PLLQ
2017-04-12 18:07:46 +02:00
Gabriel Fernandez
ef18910479 clk: stm32f4: fix: exclude values 0 and 1 for PLLQ
0000: PLLQ = 0, wrong configuration
0001: PLLQ = 1, wrong configuration
...
0010: PLLQ = 2
0011: PLLQ = 3
0100: PLLQ = 4
...
1111: PLLQ = 1

Use divider table to exclude 0 and 1 values.

Fixes: 83135ad3c5 ("clk: stm32f4: Add PLL_I2S & PLL_SAI for STM32F429/469 boards")

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:07:42 +02:00
Stephen Boyd
4641d6a560 Merge branch 'for-4.12-ti-clk-cleanups' of https://github.com/t-kristo/linux-pm into clk-next
* 'for-4.12-ti-clk-cleanups' of https://github.com/t-kristo/linux-pm:
  clk: ti: convert to use proper register definition for all accesses
  clk: ti: dpll44xx: fix clksel register initialization
  clk: ti: gate: export gate_clk_ops locally
  clk: ti: divider: add driver internal API for parsing divider data
  clk: ti: divider: convert TI divider clock to use its own data representation
  clk: ti: mux: convert TI mux clock to use its internal data representation
  clk: ti: drop unnecessary MEMMAP_ADDRESSING flag
  clk: ti: omap4: cleanup unnecessary clock aliases
  clk: ti: enforce const types on string arrays
  clk: ti: move omap2_init_clk_clkdm under TI clock driver
  clk: ti: add clkdm_lookup to the exported functions
  clk: ti: use automatic clock alias generation framework
  clk: ti: add API for creating aliases automatically for simple clock types
  clk: ti: add support for automatic clock alias generation
  clk: ti: remove un-used definitions from public clk_hw_omap struct
2017-04-12 18:07:37 +02:00
Leo Yan
b0459491ca clk: hi6220: add debug APB clock
The debug APB clock is absent in hi6220 driver, so this patch is to add
support for it.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2017-04-12 18:07:31 +02:00
Icenowy Zheng
266061b763 clk: sunxi-ng: fix PRCM CCU CLK_NUMBER value
The CLK_NUMBER value of PRCM CCU is wrongly set to (CLK_APB0_PWD + 1),
which prevented the IR mod clock from being set up.

Change it to (CLK_IR + 1) in order to correctly get IR mod set up.

Fixes: cdb8b80b60 ("clk: sunxi-ng: add support for PRCM CCUs")

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-10 09:04:33 +02:00
Icenowy Zheng
37cabc74e5 clk: sunxi-ng: fix PRCM CCU ir clk parent
The first parent of ir clk in PRCM CCU is wrongly written as "osc32K"
instead of "osc32k".

Change it to "osc32k".

Fixes: cdb8b80b60 ("clk: sunxi-ng: add support for PRCM CCUs")

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-10 09:04:23 +02:00
Martin Blumenstingl
b609338b26 clk: meson: mpll: use 64bit math in rate_from_params
On Meson8b the MPLL parent clock (fixed_pll) has a rate of 2550MHz.
Multiplying this with SDM_DEN results in a value greater than 32bits.
This is not a problem on the 64bit Meson GX SoCs, but it may result in
undefined behavior on the older 32bit Meson8b SoC.

While rate_from_params was only introduced recently to make the math
reusable from _round_rate and _recalc_rate the original bug exists much
longer.

Fixes: 1c50da4f27 ("clk: meson: add mpll support")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
[as discussed on the ml, use DIV_ROUND_UP_ULL]
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-04-07 17:45:30 +02:00
Martin Blumenstingl
88e4ac68ea clk: meson: mpll: fix division by zero in rate_from_params
According to the public datasheet all register bits in HHI_MPLL_CNTL7,
HHI_MPLL_CNTL8 and HHI_MPLL_CNTL9 default to zero. On all GX SoCs these
seem to be initialized by the bootloader to some default value.
However, on my Meson8 board they are not initialized, leading to a
division by zero in rate_from_params as the math is:
(parent_rate * SDM_DEN) / ((SDM_DEN * 0) + 0)

According to the datasheet, the minimum n2 value is 4. The rate provided
by the clock when n2 is less than this minimum is unpredictable. In such
case, we report an error.

Although the rate_from_params function was only introduced recently the
original bug has been there for much longer. It was only exposed
recently when the MPLL clocks were added to the Meson8b clock driver.

Fixes: 1c50da4f27 ("clk: meson: add mpll support")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-04-07 17:45:21 +02:00
Jerome Brunet
7eaa44f620 clk: meson: gxbb: add cts_i958 clock
This adds the cts_i958 clock to control the clock source of the spdif
output block. This mux is not explicitly mentionned in the documentation
but it is critical to the spdif dai. It is used to select whether the clock
source of the spdif output is cts_amclk (when data are taken from i2s
buffer) or the cts_mclk_i958 (when data are taken from the spdif buffer)

Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-04-07 16:50:46 +02:00
Jerome Brunet
3c277c247e clk: meson: gxbb: add cts_mclk_i958
Add the spdif master clock also referred as cts_mclk_i958

Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-04-07 16:50:46 +02:00
Jerome Brunet
4087bd4b21 clk: meson: gxbb: add cts_amclk
Add the i2s master clock also referred as cts_amclk

Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-04-07 16:50:45 +02:00
Jerome Brunet
59e85335dd clk: meson: add audio clock divider support
The audio divider needs a specific clock divider driver.
With am mpll parent clock, which is able to provide a fairly precise rate,
the generic divider tends to select low value of the divider. In such case
the quality of the clock is very poor. For the same final rate, maximizing
the audio clock divider value and selecting the corresponding mpll rate
gives better results. This is what this driver aims to acheive. So far, so
good.

Cc: Hendrik v. Raven <hendrik@consetetur.de>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-04-07 16:50:44 +02:00
Jerome Brunet
a70c6e06ed clk: meson: gxbb: protect against holes in the onecell_data array
The clock controller is getting more complex and it might be possible, in
the future, to have holes in the clk_hw_onecell_data array. Just make sure
we skip those holes if it ever happens.

Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-04-07 16:50:44 +02:00
Linus Walleij
ba3fae06c7 ARM/clk: move the ICST library to drivers/clk
This moves the ICST clock divider helper library from
arch/arm/common to drivers/clk/versatile so it is maintained
with the other clock drivers.

We keep the structure as a helper library intact and do not
fuse it with the clk-icst.c Versatile ICST clock driver: there
may be other users out there that need to use this library for
their clocking, and then it will be helpful to keep the
library contained. (The icst.[c|h] files could just be moved
to drivers/clk/lib or a similar location to share the library.)

Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07 11:58:12 +02:00
Priit Laes
cb545960de clk: sunxi-ng: Display index when clock registration fails
Add clock index to clock registration failure message. Clock name
is sometimes not available, when things go really wrong.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-06 09:10:30 +02:00
Chen-Yu Tsai
68f37d8624 clk: sunxi-ng: a33: Add offset and minimum value for DDR1 PLL N factor
The DDR1 PLL on the A33 is an oddball amongst the A33 CCU clocks.
It is a clock multiplier, with the effective multiplier in the
range of 12 ~ 255 and no offset between the multiplier value and
the value programmed into the register.

Implement the zero offset and minimum value of 12 for this clock.

Fixes: d05c748bd7 ("clk: sunxi-ng: Add A33 CCU support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-05 09:03:02 +02:00
Chen-Yu Tsai
25eb035c3f clk: sunxi-ng: a80: Remodel CPU cluster PLLs as N-type multiplier clocks
The CPU cluster PLLs on the A80 are NP clocks that are atypical in two ways:

  - The P factor is 1 bit wide, and translates to a /1 or /4 divider.

  - The P factor should only be used for output frequencies lower than
    288 MHz. The N factor has a lower limit of 12, which likely contributed
    to this extra divider.

According to the user manual, the clocks can only go as low as 200 MHz.
The vendor BSP kernel does not even define operating points below 360
MHz for these clocks. The lower end for cpufreq in the vendor kernel is
even higher. The mainline Linux kernel doesn't support cpufreq for the
A80 at the moment. This means the lower frequencies are untested, and
will likely remain unused.

The new sunxi-ng style clocks don't support the quirks listed above.
Instead of trying to work the quirks in for something of little usage,
we re-model the clocks into N-type multipler clocks, with P fixed at 1.
At probe time we check if P is set to 4, and fix it up if needed. This
is highly unlikely though.

Fixes: b8eb71dcdd ("clk: sunxi-ng: Add A80 CCU")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-05 09:02:56 +02:00
Chen-Yu Tsai
cf719012b2 clk: sunxi-ng: mult: Support PLL lock detection
Some PLL clocks are N (multiplier) type clocks, or can be simplified
as such. An example of the former is the DDR1 PLL clock on the A33.
An example of the latter is the CPU PLL clock on the A80, in which
the P divider is only used for low frequencies that are of little
use. Both clocks support PLL lock detection.

The mult clock macro implies support for this, but that is not true.
The field is simply discarded. This patch adds proper support for it.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-05 09:01:41 +02:00
Kevin Hilman
3a429818a2 Merge branch 'v4.12/clk-drivers' into v4.12/clk
* v4.12/clk-drivers:
  clk: meson-gxbb: Add GXL/GXM GP0 Variant
  clk: meson-gxbb: Add GP0 PLL init parameters
  clk: meson: Add support for parameters for specific PLLs
  clk: meson-gxbb: Add MALI clocks
  clk: meson: mpll: correct N2 maximum value
  clk: meson8b: add the mplls clocks 0, 1 and 2
  clk: meson: gxbb: mpll: use rw operation
  clk: meson: mpll: add rw operation
  clk: gxbb: put dividers and muxes in tables
  clk: meson8b: put dividers and muxes in tables
  clk: meson: add missing const qualifiers on gate arrays
  clk: meson: fix SET_PARM macro
2017-04-04 15:58:11 -07:00
Neil Armstrong
0d48fc558d clk: meson-gxbb: Add GXL/GXM GP0 Variant
The clock tree in the Amlogic GXBB and GXL/GXM SoCs is shared, but the GXL/GXM
SoCs embeds a different GP0 PLL, and needs different parameters with a vendor
provided reduced rate table.

This patch adds the GXL GP0 variant, and adds a GXL DT compatible in order
to use the GXL GP0 PLL instead of the GXBB specific one.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1490178747-14837-4-git-send-email-narmstrong@baylibre.com
2017-04-04 12:05:14 -07:00
Neil Armstrong
e194401cf4 clk: meson-gxbb: Add GP0 PLL init parameters
Tha Amlogic GXBB SoC GP0 PLL needs some vendor provided parameters to be
initializated in the the GP0 control registers before configuring the rate
with the rate table provided parameters.

GXBB GP0 PLL tweaks are also selected to respect the vendor init procedure.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1490178747-14837-3-git-send-email-narmstrong@baylibre.com
2017-04-04 12:05:13 -07:00
Neil Armstrong
45fcbec70c clk: meson: Add support for parameters for specific PLLs
In recent Amlogic GXBB, GXL and GXM SoCs, the GP0 PLL needs some specific
parameters in order to initialize and lock correctly.

This patch adds an optional PARAM table used to initialize the PLL to a
default value with it's parameters in order to achieve to desired frequency.

The GP0 PLL in GXBB, GXL/GXM also needs some tweaks in the initialization
steps, and these are exposed along the PARAM table.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1490178747-14837-2-git-send-email-narmstrong@baylibre.com
2017-04-04 12:05:12 -07:00
Neil Armstrong
fac9a55b66 clk: meson-gxbb: Add MALI clocks
The Mali is clocked by two identical clock paths behind a glitch free mux
to safely change frequency while running.

The two "mali_0" and "mali_1" clocks are composed of a mux, divider and gate.
Expose these two clocks trees using generic clocks.
Finally the glitch free mux is added as "mali" clock.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1490177935-9646-3-git-send-email-narmstrong@baylibre.com
2017-04-04 12:05:12 -07:00
Neil Armstrong
7d33d60b0c clk: meson-gxbb: Expose GP0 dt-bindings clock id
This patch exposes the GP0 PLL clock id in the dt bindings.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1490178747-14837-5-git-send-email-narmstrong@baylibre.com
2017-04-04 11:00:06 -07:00
Neil Armstrong
5c65eec3d9 clk: meson-gxbb: Add MALI clock IDS
Add missing MALI clock IDs and expose the muxes and gates in the dt-bindings.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1490177935-9646-2-git-send-email-narmstrong@baylibre.com
2017-04-04 11:00:05 -07:00
Jerome Brunet
28f6c58367 dt-bindings: clk: gxbb: expose i2s output clock gates
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-10-jbrunet@baylibre.com
2017-04-04 11:00:05 -07:00
Icenowy Zheng
cdb8b80b60 clk: sunxi-ng: add support for PRCM CCUs
SoCs after A31 has a clock controller module in the PRCM part.

Support the clock controller module on H3/5 and A64 now.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-04 17:43:52 +02:00
Jon Hunter
1116d5a7af clk: tegra: Don't reset PLL-CX if it is already enabled
Commit 8dce89a1c2 ("clk: tegra: Don't warn for PLL defaults
unnecessarily") changed the tegra210_pllcx_set_defaults() function
causing the PLL to always be reset regardless of whether it is in-use.
This function was changed so that resetting of the PLL will only be
skipped if the PLL is enabled AND 'pllcx->params->defaults_set' is not
true. However, the 'pllcx->params->defaults_set' is always true and
hence, the PLL is now always reset. This causes the boot to fail on the
Tegra210 Smaug where the PLL is already enabled and in-use. Fix this by
only resetting the PLL if not in-use and only printing the warning that
the defaults are not set after we have checked the default settings.

Fixes: 8dce89a1c2 ("clk: tegra: Don't warn for PLL defaults unnecessarily")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-04-04 16:06:05 +02:00
Peter De Schrijver
88da44c5ed clk: tegra: Add missing Tegra210 clocks
iqc1, iqc2, tegra_clk_pll_a_out_adsp, tegra_clk_pll_a_out0_out_adsp, adsp
and adsp neon were not modelled. dp2 wasn't modelled for Tegra210.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-04-04 16:03:00 +02:00
Alex Frid
a63b6186f9 clk: tegra: Propagate clk_out_x rate to parent
Given that externx can only be used as a parent for clk_out_x, it makes
sense to propagate requests to make clk_out_x easier to handle.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-04-04 16:00:28 +02:00
Gabriel Fernandez
daffad2123 clk: stm32f4: fix: exclude values 0 and 1 for PLLQ
0000: PLLQ = 0, wrong configuration
0001: PLLQ = 1, wrong configuration
...
0010: PLLQ = 2
0011: PLLQ = 3
0100: PLLQ = 4
...
1111: PLLQ = 1

Use divider table to exclude 0 and 1 values.

Fixes: 83135ad3c5 ("clk: stm32f4: Add PLL_I2S & PLL_SAI for STM32F429/469 boards")

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-03 17:57:54 -07:00
Geert Uytterhoeven
bb1953067c clk: renesas: rcar-gen3-cpg: Add support for RCLK on R-Car H3 ES2.0
Starting with R-Car H3 ES2.0, the parent of RCLK is selected using MD28.

Add support for that, but retain the old behavior for R-Car H3 ES1.x and
M3-W ES1.0 using a quirk.

Inspired by a patch by Takeshi Kihara in the BSP.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>
2017-03-30 13:26:02 +02:00
Geert Uytterhoeven
5573d19412 clk: renesas: r8a7795: Add support for R-Car H3 ES2.0
The Clock Pulse Generator / Module Standby and Software Reset module in
R-Car H3 ES2.0 differs from ES1.x in the following areas:
  - More core clocks (S0D2, S0D3, S0D6, S0D8, S0D12),
  - Different parent clocks for AUDMAC, EtherAVB, FCP, FDP, IMR,
    SYS-DMAC, VIN, VSPB, VSPI,
  - Removal of modules CSI21, FCPCI, FCPF2, FCPVD3, FCPVI2, FDP1-2,
    USB3-IF1, VSPD3, VSPI2,
  - Addition of modules EHCI3, HS-USB-IF3, USB-DMAC3-0, USB-DMAC3-1.

The goal is twofold:
  1. Support both the ES1.x and ES2.0 SoC revisions in a single binary
     for now,
  2. Make it clear which code supports ES1.x, so it can easily be
     identified and removed later, when production SoCs are deemed
     ubiquitous.

This is achieved by:
  - Updating the clock tables for the latest revision (ES2.0), but not
    removing clocks that only exist on earlier revisions (ES1.x),
  - Detecting the SoC revision at runtime using the new soc_device_match()
    API, and fixing up the clocks tables to match the actual SoC
    revision, by:
      - NULLifying core and module clocks of modules that do not exist,
      - Reparenting module clocks that have a different parent on ES1.x.

Based on R-Car Gen3 Hardware User's Manual rev. 0.53E.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-30 13:25:50 +02:00
Geert Uytterhoeven
48d0341e41 clk: renesas: cpg-mssr: Add support for fixing up clock tables
The same SoC may have different clocks and/or module clock parents,
depending on SoC revision.  One option is to use different sets of clock
tables for each SoC revision.  However, if the differences are small, it
is much more space-efficient to have a single set of clock tables, and
fix those up at runtime instead.

Hence provide three helpers:
  - Two helpers to NULLify core and module clocks that do not exist on
    some revisions (NULLified clocks are skipped during the registration
    phase),
  - One helper to reparent module clocks that have different clock
    parents.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-30 13:25:24 +02:00
Jerome Brunet
b68fb7871e clk: meson: mpll: correct N2 maximum value
Gxbb datasheet says N2 maximum value is 127 but the register field is
9 bits wide, the maximum value should 511.

Test shows value greater than 127, all the way to 511, works well

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-9-jbrunet@baylibre.com
2017-03-27 12:30:38 -07:00
Jerome Brunet
b778f7451a clk: meson8b: add the mplls clocks 0, 1 and 2
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-8-jbrunet@baylibre.com
2017-03-27 12:30:27 -07:00
Jerome Brunet
05b43aa2ad clk: meson: gxbb: mpll: use rw operation
Use read/write operations for the mpll clocks instead of the
read-only ones.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-7-jbrunet@baylibre.com
2017-03-27 12:30:22 -07:00
Jerome Brunet
007e6e5c5f clk: meson: mpll: add rw operation
This patch adds new callbacks to the meson-mpll driver to control
and set the pll rate. For this, we also need to add the enable bit and
sdm enable bit. The corresponding parameters are added to mpll data
structure.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-6-jbrunet@baylibre.com
2017-03-27 12:30:18 -07:00
Jerome Brunet
b92332eea8 clk: gxbb: put dividers and muxes in tables
Until now, there was only 2 dividers and 2 muxes declared for the gxbb
platform. With the ongoing work on various subsystem, including audio,
this is about to change. Use the same approach as gates for dividers and
muxes, putting them in tables to fix the register address at runtime.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-5-jbrunet@baylibre.com
2017-03-27 12:30:06 -07:00
Jerome Brunet
e988aae54c clk: meson8b: put dividers and muxes in tables
Until now, there was only 1 divider and 1 mux declared for the meson8b
platform. With the ongoing work on various system, including audio, this
is about to change. Use the same approach as gates for dividers and muxes,
putting them in tables to fix the register address at runtime.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-4-jbrunet@baylibre.com
2017-03-27 12:30:01 -07:00
Jerome Brunet
f7e3a82609 clk: meson: add missing const qualifiers on gate arrays
Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-3-jbrunet@baylibre.com
2017-03-27 12:29:55 -07:00
Jerome Brunet
1ddfe82ed8 clk: meson: fix SET_PARM macro
parameter val is not enclosed in parenthesis which is buggy when given an
expression instead of a simple value

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20170309104154.28295-2-jbrunet@baylibre.com
2017-03-27 12:29:51 -07:00
Stephen Boyd
7f0b97d5bb Allwinner clock fixes for 4.11
A few fixes for a bunch of clocks on a few SoCs. The most important one is
 probably one that fixes the NKMP clock frequency calculation and could end
 up with clocking the CPU frequency to out of bounds rates.
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Merge tag 'sunxi-clk-fixes-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes

Pull Allwinner clock fixes from Maxime Ripard:

A few fixes for a bunch of clocks on a few SoCs. The most important one is
probably one that fixes the NKMP clock frequency calculation and could end
up with clocking the CPU frequency to out of bounds rates.

* tag 'sunxi-clk-fixes-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  clk: sunxi-ng: fix recalc_rate formula of NKMP clocks
  clk: sunxi-ng: Fix div/mult settings for osc12M on A64
  clk: sunxi-ng: sun6i: Fix enable bit offset for hdmi-ddc module clock
  clk: sunxi: ccu-sun5i needs nkmp
  clk: sunxi-ng: mp: Adjust parent rate for pre-dividers
2017-03-23 16:08:46 -07:00
Elaine Zhang
9be8344895 clk: rockchip: add pll_wait_lock for pll_enable
If pll is power down,when power up pll need wait pll lock.
The reference documents section:
	PLL frequency change and lock check

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-03-22 18:33:22 +01:00
Andy Yan
7e2a9035c1 clk: rockchip: rename RK1108 to RV1108
Rockchip finally named the SOC as RV1108, so change it.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>

[include rename in rk1108.dtsi to prevent compile errors]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-03-22 18:03:04 +01:00
Geert Uytterhoeven
cecbe87d73 clk: renesas: rcar-gen3: Add workaround for PLL0/2/4 errata on H3 ES1.0
Add a workaround for errata on R-Car H3 ES1.0, where the PLL0, PLL2, and
PLL4 clock frequencies are off by a factor of two.

Inspired by a patch by Dien Pham in the BSP.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Dien Pham <dien.pham.ry@renesas.com>
2017-03-21 11:12:23 +01:00
Geert Uytterhoeven
5f3a432a44 clk: renesas: rcar-gen3-cpg: Pass mode pins to rcar_gen3_cpg_init()
Pass the mode pin states from the SoC-specific CPG/MSSR driver to the
R-Car Gen3 CPG driver core, as their state will be needed to make some
core clock configuration decisions.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-21 11:12:23 +01:00
Geert Uytterhoeven
c013fc7d23 clk: renesas: r8a7796: Reformat core clock table
For easier comparison with other clock drivers.
No functional changes.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-21 11:12:22 +01:00
Geert Uytterhoeven
3c969cec16 clk: renesas: r8a7795: Reformat core clock table
For easier comparison with other clock drivers.
No functional changes.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-21 11:12:22 +01:00
Geert Uytterhoeven
89aa58a395 clk: renesas: r8a7796: Correct name of watchdog clock
There's only a single watchdog clock, and it's named "rwdt".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-21 11:12:21 +01:00
Geert Uytterhoeven
2122b56d30 clk: renesas: r8a7795: Correct name of watchdog clock
There's only a single watchdog clock, and it's named "rwdt".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-21 11:12:21 +01:00
Geert Uytterhoeven
a843ed3f6c clk: renesas: r8a7795: Correct parent clock and sort order for Audio DMACs
The parent clock of the Audio DMACs is the "ZS" AXI bus clock, which
maps to S3D1 on R-Car H3 ES1.x.
All module clocks must be sorted by clock ID.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
2017-03-21 11:12:07 +01:00
Thierry Reding
39133505ca clk: tegra: Fix build warnings on Tegra20/Tegra30
The recent conversion of proper const usage was only partial and didn't
include Tegra20 and Tegra30 support. Fix that up.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 17:14:14 +01:00
Peter De Schrijver
bea1baa1e7 clk: tegra: Mark TEGRA210_CLK_DBGAPB as always on
This is needed to make the JTAG debugging interface work.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
[treding@nvidia.com: add TODO comment]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 15:16:46 +01:00
Peter De Schrijver
59af78d78d clk: tegra: Add SATA seq input control
This will be used by the powergating driver to ensure proper sequencer
state when the SATA domain is powergated.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:26:03 +01:00
Peter De Schrijver
68d724cedc clk: tegra: Add Tegra210 special resets
Tegra210 has 2 special resets which don't follow the normal pattern:
DVCO and ADSP. Add them in this patch.

Changelog:

v2: add DT bindings file

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:20:42 +01:00
Peter De Schrijver
e745f992cf clk: tegra: Rework pll_u
In normal operation pll_u is under hardware control and has a fixed rate
of 480MHz. Hardware will turn on pll_u on whenever any of the XUSB
powerdomains is on. From a software point of view we model this is if
pll_u is always on using a fixed rate clock. However the bootloader
might or might not have configured pll_u this way. So we will check the
current state of pll_u at boot and reconfigure it if required.

There are 3 possiblities at kernel boot:
1) pll_u is under hardware control: do nothing
2) pll_u is under hardware control and enabled: enable hardware control
3) pll_u is disabled: enable pll_u and enable hardware control

In all cases we also check if UTMIPLL is under hardware control at boot
and configure it for hardware control if that is not the case.
The same is done during SC7 resume.

Thanks to Joseph Lo <josephl@nvidia.com> for bug fixes.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:18:30 +01:00
Mikko Perttunen
4236e752f1 clk: tegra: Implement reset control reset
For completeness, also implement this reset framework API for Tegra.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:15:31 +01:00
Peter De Schrijver
9619dba832 clk: tegra: Fix disable unused for clocks sharing enable bit
In case 2 clocks share an enable bit and one of them is enabled by a
driver and the other one is not, CCF will think it's enabled because it
will only look at the HW state. Therefore it will disable the clock and
thus also disable the other clock which was enabled. Solve this by
reading the initial state of the enable bit and incrementing the
refcount if it's set.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:13:52 +01:00
Peter De Schrijver
3843832fc8 clk: tegra: Handle UTMIPLL IDDQ
Export UTMIPLL IDDQ functions. These will be needed when powergating the
XUSB partition.

Signed-off-by: BH Hsieh <bhsieh@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:09:05 +01:00
Peter De Schrijver
24c3ebef1a clk: tegra: Add aclk
This clock clocks the ADSP Cortex-A9.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:07:48 +01:00
Peter De Schrijver
e827ba1840 clk: tegra: Add super clock mux/divider
Add a super clock type which implements both mux and divider. This is
used for aclk.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:07:33 +01:00
Peter De Schrijver
6cfc8bc9ee clk: tegra: Define Tegra210 DMIC clocks
Tegra210 has 3 inputs for Digital Microphones (DMICs). Provide the
required clocks for them.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:07:21 +01:00
Peter De Schrijver
9e8c93edd2 clk: tegra: Fix constness for peripheral clocks
checkpatch now warns for const ** and expects const * const * to be used
instead. This means we have to update the prototypes and function
declarations to handle this change.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:07:03 +01:00
Peter De Schrijver
319af7975c clk: tegra: Define Tegra210 DMIC sync clocks
Tegra210 has 3 DMIC inputs which can be clocked from the recovered clock
of several other audio inputs (eg. i2s0, i2s1, ...). To model this, we
add a 3 new clocks similar to the audio* clocks which handle the same
function for the I2S and SPDIF clocks.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:06:33 +01:00
Peter De Schrijver
bfa34832df clk: tegra: Add CEC clock
This clock is used to clock the HDMI CEC interface.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:06:23 +01:00
Peter De Schrijver
e589376dab clk: tegra: Fix type for m field
When used as part of fractional ndiv calculations, the current range is
not enough because the denominator of the fraction is multiplied with m.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:06:09 +01:00
Peter De Schrijver
ef6ed2b956 clk: tegra: Correct tegra210_pll_fixed_mdiv_cfg rate calculation
Return the actually achieved rate in cfg->output_rate rather than just
the requested rate. This is important to make clk_round_rate() return
the correct result.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:05:46 +01:00
Peter De Schrijver
8dce89a1c2 clk: tegra: Don't warn for PLL defaults unnecessarily
If the PLL is on, only warn if the defaults are not yet set. Otherwise
be silent.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:05:35 +01:00
Peter De Schrijver
8809eeac21 clk: tegra: Remove non-existing pll_m_out1 clock
This clock doesn't actually exist, so remove it.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:05:29 +01:00
Peter De Schrijver
e7a49675e2 clk: tegra: Correct afi clock parent
The parent for afi is actually mselect, not clk_m.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:05:03 +01:00
Peter De Schrijver
34ac2c278b clk: tegra: Fix ISP clock modelling
The 2 ISP clocks (ispa and ispb) share a mux/divider control. So model
this as 1 mux/divider clock and child gate clocks.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:04:45 +01:00
Peter De Schrijver
9326947f22 clk: tegra: Fix pll_a1 iddq register, add pll_a1
pll_a1 was using CLK_RST_CONTROLLER_PLLA1_MISC_0 for IDDQ control rather
than the correct register CLK_RST_CONTROLLER_PLLA1_MISC_1. Also add
pll_a1 to the set of clocks defined for Tegra210.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-03-20 14:04:27 +01:00
Icenowy Zheng
b467e08a15 clk: sunxi-ng: fix recalc_rate formula of NKMP clocks
In commit e66f81bbd7 ("clk: sunxi-ng: Implement factors offsets"), the
final formula of NKMP clocks' recalc_rate is refactored; however, the
refactored formula broke the calculation due to some C language operand
priority problem -- the priority of operand >> is lower than * and /,
makes the formula being parsed as "(parent_rate * n * k) >> (p / m)", but
it should be "(parent_rate * n * k >> p) / m".

Add the pair of parentheses to fix up this issue. This pair of
parentheses used to exist in the old formula.

Fixes: e66f81bbd7 ("clk: sunxi-ng: Implement factors offsets")
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-20 10:34:05 +01:00
Philipp Tomsich
fe686babf4 clk: sunxi-ng: Fix div/mult settings for osc12M on A64
The mult/div for osc12M was previously backwards (giving a 48M rate
for osc12M). Fix it.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-20 09:49:43 +01:00
Heiner Kallweit
eff041553d clk: meson-gxbb: expose clock CLKID_RNG0
Expose clock CLKID_RNG0 which is needed for the HW random number generator.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16 17:58:46 +08:00
Elaine Zhang
920c480a73 clk: rockchip: mark some rk3368 core-clks as critical
Mark pclk_pd_alive, pclk_peri, hclk_peri as critical

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-03-10 11:21:35 +01:00
Elaine Zhang
4f060850ec clk: rockchip: export SCLK_TIMERXX id for timers on rk3368
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-03-10 11:20:31 +01:00
Elaine Zhang
9bb4db6232 clk: rockchip: describe clk_gmac using the new muxgrf type on rk3328
With the newly introduced clk type for muxes in the grf we now can
describe some missing clocks, like the clk_gmac2io and clk_gmac2phy
that selects between clk_mac2io_src and gmac_clkin based on a bit
set in the general register files.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-03-10 11:20:02 +01:00
Tero Kristo
6c0afb5039 clk: ti: convert to use proper register definition for all accesses
Currently, TI clock driver uses an encapsulated struct that is cast into
a void pointer to store all register addresses. This can be considered
as rather nasty hackery, and prevents from expanding the register
address field also. Instead, replace all the code to use proper struct
in place for this, which contains all the previously used data.

This patch is rather large as it is touching multiple files, but this
can't be split up as we need to avoid any boot breakage.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:06:15 +02:00
Tero Kristo
473adbf4e0 clk: ti: dpll44xx: fix clksel register initialization
clksel register pointer should be used for the DPLL-MX autoidle handling.
Currently this is not setup at all. Fix by adding proper handling for the
register.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:05:42 +02:00
Tero Kristo
9a00fa6843 clk: ti: gate: export gate_clk_ops locally
These are going to be used by the clkctrl support that will be introduced
later.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:05:03 +02:00
Tero Kristo
4f6be5655d clk: ti: divider: add driver internal API for parsing divider data
This can be used from the divider itself, and also from the clkctrl
clocks once this is introduced.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:04:38 +02:00
Tero Kristo
6dbde94756 clk: ti: divider: convert TI divider clock to use its own data representation
Instead of using the generic clock driver data struct, use one internal
for the TI clock driver itself. This allows modifying the register access
parts in subsequent patch.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:04:06 +02:00
Tero Kristo
d83bc5b69f clk: ti: mux: convert TI mux clock to use its internal data representation
Instead of using the generic clock driver data struct, use one internal
for the TI clock driver itself. This allows modifying the register access
parts in subsequent patch.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:03:22 +02:00
Tero Kristo
c91f07801f clk: ti: drop unnecessary MEMMAP_ADDRESSING flag
This has been superceded by the usage of ti_clk_ll_ops for now.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:03:07 +02:00
Tero Kristo
b6312da57f clk: ti: omap4: cleanup unnecessary clock aliases
Cleanup any unnecessary DT_CLK() alias entries from the OMAP4 clock file.
Most of these are now handled dynamically by the driver code.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:00:57 +02:00
Tero Kristo
ce382d4766 clk: ti: enforce const types on string arrays
Constant string arrays should use const char * const instead of just
const char *. Change the implementations using these to proper type.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:00:25 +02:00
Tero Kristo
2e1a294c0f clk: ti: move omap2_init_clk_clkdm under TI clock driver
This is not needed outside the driver, so move it inside it and remove
the prototype from the public header also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 12:59:30 +02:00
Tero Kristo
1ae79c46cf clk: ti: use automatic clock alias generation framework
Generate clock aliases automatically for all TI clock drivers.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 12:58:18 +02:00
Tero Kristo
c17435c56b clk: ti: add API for creating aliases automatically for simple clock types
This API generates clock aliases automatically for simple clock types
(fixed-clock, fixed-factor-clock), so that we don't need to add the data
for these statically into tables. Shall be called from the SoC specific
clock init.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 12:57:45 +02:00
Tero Kristo
21f0bf2d3d clk: ti: add support for automatic clock alias generation
Large portions of the OMAP framework still depend on the support of
having clock aliases in place, so add support functions for generating
these automatically.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 12:57:12 +02:00
Heiko Stuebner
f8ba2d68e5 clk: rockchip: Make uartpll a child of the gpll on rk3036
The shared uart-pll is on boot a child of the apll that can get changed
by cpu frequency scaling. So move it away to the more stable gpll to
make sure the uart doesn't break on cpu frequency changes.

This turned up during the 4.11 merge-window when commit
6a171b2993 ("serial: 8250_dw: Allow hardware flow control to be used")
added general termios enablement making the uart on rk3036 change
frequency and thus making it susceptible for the frequency scaling issue.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-03-07 05:54:50 -08:00
Heiko Stuebner
9b1b23f03a clk: rockchip: add "," to mux_pll_src_apll_dpll_gpll_usb480m_p on rk3036
The mux_pll_src_apll_dpll_gpll_usb480m_p parent list was missing a ","
between the 3rd and 4th parent names, making them fall together and thus
lookups fail. Fix that.

Fixes: 5190c08b29 ("clk: rockchip: add clock controller for rk3036")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-03-07 05:54:49 -08:00
Leonard Crestez
253160a8ad clk: core: Copy connection id
Some drivers use sprintf to build clk connection id names but the clk
core will save those strings and occasionally print them back. Duplicate
the con_id strings instead of fixing all the users.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-03-07 05:19:20 -08:00
Sergei Shtylyov
6c8a931294 clk: renesas: r8a7796: Add IMR clocks
Add the IMR[0-1] clocks to the R8A7796 CPG/MSSR driver.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
[geert: Correct parent clocks]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-06 11:48:33 +01:00
Sergei Shtylyov
7d0a7c7bdf clk: renesas: r8a7795: Add IMR clocks
Add the IMR[0-3] clocks to the R8A7795 CPG/MSSR driver.

Based on the original (and large) patch by Konstantin Kozhevnikov
<Konstantin.Kozhevnikov@cogentembedded.com>.

Signed-off-by: Konstantin Kozhevnikov <Konstantin.Kozhevnikov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-03-06 11:48:33 +01:00
Priit Laes
b0f0daa8fe clk: sunxi-ng: sun5i: Fix mux width for csi clock
Mux for CSI clock is 3 bits, not 2.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-06 10:25:56 +01:00
Peter Robinson
05c04bef44 clk: sunxi-ng: tighten SoC deps on explicit AllWinner SoCs
Tighten the depends on the various AllWinn SoCs so we don't
inadvertantly get clock drivers when we're not wanting them
like 32 bit SoC clocks for 64 bit configs. Ensure there's
still test coverage though.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-06 10:25:56 +01:00
Icenowy Zheng
9be1c8afb4 clk: sunxi-ng: add Allwinner H5 CCU support for H3 CCU driver
Allwinner H5 is a SoC that features a design which keeps the peripheral
compatible with H3, so that it have also a CCU like the one on H3 --
only one bus gate/reset is added, and the mmc sample/output phases are
removed because of MMC controller update.

Add its support in our existing H3 CCU driver.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-06 10:25:56 +01:00
Chen-Yu Tsai
845d6b0ff9 clk: sunxi-ng: gate: Support common pre-dividers
Some clock gates have a pre-divider between the source input and the
gate itself. A notable example is the HSIC 12 MHz clock found on the
A83T, which has the 24 MHz main oscillator as its input, and a /2
pre-divider.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-06 10:25:56 +01:00
Chen-Yu Tsai
9ad0bb39fc clk: sunxi-ng: sun6i: Fix enable bit offset for hdmi-ddc module clock
The enable bit offset for the hdmi-ddc module clock is wrong. It is
pointing to the main hdmi module clock enable bit.

Reported-by: Bob Ham <rah@settrans.net>
Fixes: c6e6c96d8f ("clk: sunxi-ng: Add A31/A31s clocks")
Cc: stable@vger.kernel.org # 4.9.x-
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-06 07:36:04 +01:00
Arnd Bergmann
69c9ae5041 clk: sunxi: ccu-sun5i needs nkmp
A randconfig build ran into this rare link error:

drivers/clk/sunxi-ng/ccu-sun5i.o:(.data.__compound_literal.1+0x4): undefined reference to `ccu_nkmp_ops'
drivers/clk/sunxi-ng/ccu-sun5i.o:(.data.__compound_literal.7+0x4): undefined reference to `ccu_nkmp_ops'

This adds the missing 'select'.

Fixes: 5e73761786 ("clk: sunxi-ng: Add sun5i CCU driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-06 07:36:04 +01:00
Chen-Yu Tsai
ac8616e4c8 clk: sunxi-ng: mp: Adjust parent rate for pre-dividers
The MP style clocks support an mux with pre-dividers. While the driver
correctly accounted for them in the .determine_rate callback, it did
not in the .recalc_rate and .set_rate callbacks.

This means when calculating the factors in the .set_rate callback, they
would be off by a factor of the active pre-divider. Same goes for
reading back the clock rate after it is set.

Cc: stable@vger.kernel.org
Fixes: 2ab836db50 ("clk: sunxi-ng: Add M-P factor clock support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-06 07:36:04 +01:00
Douglas Anderson
60aadea57e clk: rockchip: Set "ignore unused" for PMU M0 clocks on rk3399
The PMU Cortex M0 on rk3399 is intended to be used for things like
DDRFreq transitions, suspend/resume, and other things that are the
purview of ARM Trusted Firmware and not the kernel.  As such, the
kernel shouldn't be messing with the clocks.  Add CLK_IGNORE_UNUSED to
these clocks.

Without this change, the following was observed on a Chromebook with a
rk3399 (using not-yet-upstream ARM Trusted Firmware code and
not-yet-upstream kernel code based on kernel-4.4):

1. We init the clock framework.

2. We start up "DDRFreq", which causes ATF to occasionally fire up the
   M0 for transitions.  Each time ATF fires up the M0 it will turn on
   these clocks and each time it is done it will turn them off.

3. We finally get to the the part of the kernel that calls
   clk_disable_unused() and we disables the clocks.

You can see the race above.  Basically everything is fine as long as
ARM Trusted Firmware isn't starting up the M0 at exactly the same time
that the kernel is disabling unused clocks.  ...but if the race
happens then we go boom.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-03-06 04:45:45 +01:00
Linus Torvalds
a1a0db36d8 ARM: SoC: late DT updates for v4.11
These updates have been kept in a separate branch mostly because
 they rely on updates to the respective clk drivers to keep the
 shared header files in sync.
 
 This includes two branches for arm64 dt updates, both following up
 on earlier changes for the same platforms that are already merged:
 
 Samsung:
   - add USB3 support in Exynos7
   - minor PM related updates
 
 Amlogic:
   - new machines: WeTek Set-top-boxes
   - various devices added to DT
 
 There are also a couple of bugfixes that trickled in since the
 start of the merge window:
 
 - The moxart_defconfig was not building the intended platform
 - CPU-hotplug was broken on ux500
 - Coresight was broken on Juno (never worked)
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late DT updates from Arnd Bergmann:
 "These updates have been kept in a separate branch mostly because they
  rely on updates to the respective clk drivers to keep the shared
  header files in sync.

  This includes two branches for arm64 dt updates, both following up on
  earlier changes for the same platforms that are already merged:

  Samsung:
   - add USB3 support in Exynos7
   - minor PM related updates

  Amlogic:
   - new machines: WeTek Set-top-boxes
   - various devices added to DT

  There are also a couple of bugfixes that trickled in since the start
  of the merge window:

   - The moxart_defconfig was not building the intended platform
   - CPU-hotplug was broken on ux500
   - Coresight was broken on Juno (never worked)"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
  ARM: deconfig: fix the moxart defconfig
  ARM: ux500: resume the second core properly
  arm64: dts: juno: update definition for programmable replicator
  arm64: dts: exynos: Add regulators for Vbus and Vbus-Boost
  arm64: dts: exynos: Add USB 3.0 controller node for Exynos7
  arm64: dts: exynos: Use macros for pinctrl configuration on Exynos7
  pinctrl: dt-bindings: samsung: Add Exynos7 specific pinctrl macro definitions
  arm64: dts: exynos: Add initial configuration for DISP clocks for TM2/TM2e
  ARM64: dts: meson-gxbb-p200: add ADC laddered keys
  ARM64: dts: meson: meson-gx: add the SAR ADC
  ARM64: dts: meson-gxl: add the pwm_ao_b pin
  ARM64: dts: meson-gx: add the missing pwm_AO_ab node
  clk: gxbb: fix CLKID_ETH defined twice
  ARM64: dts: meson-gxl: rename Nexbox A95x for consistency
  clk: gxbb: add the SAR ADC clocks and expose them
  dt-bindings: amlogic: Add WeTek boards
  ARM64: dts: meson-gxbb: Add support for WeTek Hub and Play
  dt-bindings: vendor-prefix: Add wetek vendor prefix
  ARM64: dts: meson-gxm: Rename q200 and q201 DT files for consistency
  ARM64: dts: meson-gx: Add HDMI HPD/DDC pinctrl nodes
  ...
2017-03-03 16:15:48 -08:00
Arnd Bergmann
d4b80d9aac Merge branch 'next/late' with mainline
* next/late: (25 commits)
  arm64: dts: exynos: Add regulators for Vbus and Vbus-Boost
  arm64: dts: exynos: Add USB 3.0 controller node for Exynos7
  arm64: dts: exynos: Use macros for pinctrl configuration on Exynos7
  pinctrl: dt-bindings: samsung: Add Exynos7 specific pinctrl macro definitions
  arm64: dts: exynos: Add initial configuration for DISP clocks for TM2/TM2e
  ARM64: dts: meson-gxbb-p200: add ADC laddered keys
  ARM64: dts: meson: meson-gx: add the SAR ADC
  ARM64: dts: meson-gxl: add the pwm_ao_b pin
  ARM64: dts: meson-gx: add the missing pwm_AO_ab node
  clk: gxbb: fix CLKID_ETH defined twice
  clk: samsung: exynos5433: Add data for 250MHz and 278MHz PLL rates
  clk: samsung: exynos5433: Add IDs for PHYCLK_MIPIDPHY0_* clocks
  ARM64: dts: meson-gxl: rename Nexbox A95x for consistency
  clk: gxbb: add the SAR ADC clocks and expose them
  dt-bindings: amlogic: Add WeTek boards
  ARM64: dts: meson-gxbb: Add support for WeTek Hub and Play
  dt-bindings: vendor-prefix: Add wetek vendor prefix
  ARM64: dts: meson-gxm: Rename q200 and q201 DT files for consistency
  ARM64: dts: meson-gx: Add HDMI HPD/DDC pinctrl nodes
  ARM64: dts: meson-gxbb-vega-s95: Add LED
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-03-02 17:52:44 +01:00
Linus Torvalds
5d8a00eee2 The usual collection of new drivers, non-critical fixes, and updates
to existing clk drivers. The bulk of the work is on Allwinner and
 Rockchip SoCs, but there's also an Intel Atom driver in here too.
 
 New Drivers:
  - Tegra BPMP firmware
  - Hisilicon hi3660 SoCs
  - Rockchip rk3328 SoCs
  - Intel Atom PMC
  - STM32F746
  - IDT VersaClock 5P49V5923 and 5P49V5933
  - Marvell mv98dx3236 SoCs
  - Allwinner V3s SoCs
 
 Removed Drivers:
  - Samsung Exynos4415 SoCs
 
 Updates:
  - Migrate ABx500 to OF
  - Qualcomm IPQ4019 CPU clks and general PLL support
  - Qualcomm MSM8974 RPM
  - Rockchip non-critical fixes and clk id additions
  - Samsung Exynos4412 CPUs
  - Socionext UniPhier NAND and eMMC support
  - ZTE zx296718 i2s and other audio clks
  - Renesas CAN and MSIOF clks for R-Car M3-W
  - Renesas resets for R-Car Gen2 and Gen3 and RZ/G1
  - TI CDCE913, CDCE937, and CDCE949 clk generators
  - Marvell Armada ap806 CPU frequencies
  - STM32F4* I2S/SAI support
  - Broadcom BCM2835 DSI support
  - Allwinner sun5i and A80 conversion to new style clk bindings
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The usual collection of new drivers, non-critical fixes, and updates
  to existing clk drivers. The bulk of the work is on Allwinner and
  Rockchip SoCs, but there's also an Intel Atom driver in here too.

  New Drivers:
   - Tegra BPMP firmware
   - Hisilicon hi3660 SoCs
   - Rockchip rk3328 SoCs
   - Intel Atom PMC
   - STM32F746
   - IDT VersaClock 5P49V5923 and 5P49V5933
   - Marvell mv98dx3236 SoCs
   - Allwinner V3s SoCs

  Removed Drivers:
   - Samsung Exynos4415 SoCs

  Updates:
   - Migrate ABx500 to OF
   - Qualcomm IPQ4019 CPU clks and general PLL support
   - Qualcomm MSM8974 RPM
   - Rockchip non-critical fixes and clk id additions
   - Samsung Exynos4412 CPUs
   - Socionext UniPhier NAND and eMMC support
   - ZTE zx296718 i2s and other audio clks
   - Renesas CAN and MSIOF clks for R-Car M3-W
   - Renesas resets for R-Car Gen2 and Gen3 and RZ/G1
   - TI CDCE913, CDCE937, and CDCE949 clk generators
   - Marvell Armada ap806 CPU frequencies
   - STM32F4* I2S/SAI support
   - Broadcom BCM2835 DSI support
   - Allwinner sun5i and A80 conversion to new style clk bindings"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (130 commits)
  clk: renesas: mstp: ensure register writes complete
  clk: qcom: Do not drop device node twice
  clk: mvebu: adjust clock handling for the CP110 system controller
  clk: mvebu: Expand mv98dx3236-core-clock support
  clk: zte: add i2s clocks for zx296718
  clk: sunxi-ng: sun9i-a80: Fix wrong pointer passed to PTR_ERR()
  clk: sunxi-ng: select SUNXI_CCU_MULT for sun5i
  clk: sunxi-ng: Check kzalloc() for errors and cleanup error path
  clk: tegra: Add BPMP clock driver
  clk: uniphier: add eMMC clock for LD11 and LD20 SoCs
  clk: uniphier: add NAND clock for all UniPhier SoCs
  ARM: dts: sun9i: Switch to new clock bindings
  clk: sunxi-ng: Add A80 Display Engine CCU
  clk: sunxi-ng: Add A80 USB CCU
  clk: sunxi-ng: Add A80 CCU
  clk: sunxi-ng: Support separately grouped PLL lock status register
  clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT
  clk: sunxi-ng: mux: honor CLK_SET_RATE_NO_REPARENT flag
  clk: sunxi-ng: mux: Fix determine_rate for mux clocks with pre-dividers
  clk: qcom: SDHCI enablement on Nexus 5X / 6P
  ...
2017-02-25 14:28:06 -08:00
Linus Torvalds
195849ea13 ARM: DT updates for v4.11
A total of 380 patches this time, mostly adding support for more hardware
 in the device tree descriptions. There is not much exciting here for 4.11,
 but I've tried my best to condense the information from the pull requests
 I got into a readable summary.
 
 Noteworthy changes to existing platforms include:
   - The GIC memory map was a bit wrong almost everywhere and now
     gets fixed up
   - The Allwinner platforms convert to the generic pinmux properties
   - The Marvell EBU platforms now use the new DSA binding
   - Samsung Exynos4212 was unused and gets removed
   - The Renesas power management got improved
 
 New production machines:
   - Lego Mindstorms EV3
     https://www.lego.com/en-us/mindstorms/about-ev3
   - Beelink X2 Android media box
     http://linux-sunxi.org/Beelink_X2
   - "Romulus" baseboard management controller for OpenPower
   - Axentia TSE-850 Data Radio Channel (DARC) encoder
     http://www.axentia.se/db/equipment.html
   - Luxul XAP-1410 and XWR-1200 wireless access points
     https://luxul.com/xap-1410
 
 New SoCs:
   - Allwinner H2+ and V3s, both minor variations of already
     supported chips
     http://www.allwinnertech.com/index.php?c=product&a=index&id=38
   - Marvell Prestera DX packet processors based on Armada XP architecture
     http://www.marvell.com/switching/prestera-dx/
   - Samsung Exynos4412 Prime gets added, a minor variation of Exynos4412
 
 New developer and reference boards:
   - Lichee Pi One, Lichee Pi Zero and Orange Pi Zero,
     all based on Allwinner SoCs
     http://linux-sunxi.org/LicheePi_One
     http://www.orangepi.org/orangepizero/
   - SAMA5d36ek Reference platform
     http://www.atmel.com/tools/sama5d36-ek.aspx
   - Beaglebone Green Wireless and Black Wireless
     https://beagleboard.org/black-wireless
     https://beagleboard.org/green-wireless
   - phyCORE-AM335x System on Module
     http://phytec.com/products/system-on-modules/phycore/am335x/
   - New revision of "vf610-zii" Zodiac Inflight Innovations board
   - Various i.MX System-on-Module: Is.IoT MX6UL, SavageBoard, Engicam i.Core
     http://www.opossom.com/english/index.html
     http://www.savageboard.org/
     http://www.engicam.com/en/products/embedded/som/sodimm/is-iot-mx6ul
     http://www.engicam.com/en/products/embedded/som/sodimm/i-core-m6s-dl-d-q
   - Liebherr (LWN) monitor 6 based on i.MX6 Quad, no idea what this is
 
 Cleanups and bugfixes on at91, bcm53xx, i.MX, mvebu, omap, oxnas, qcom,
     rockchip, sti, stm32 and tegra
 
 New device supports added to some boards and SoCs, briefly by platform:
   - Allwinner: SPDIF, A33 cpufreq, A33 Mali GPU
   - Aspeed: network, ipmi bt, gpio, pinmux
   - Broadcom: video encoder for raspberry pi, qspi, ethernet, sd/mmc
   - TI DaVinci: gpio, lcdc, usb, video-in, uart
   - TI Keystone 2: MSM RAM, power/reset, uart
   - Mediatek MT2701: clocks, iommu, spi, nand, adc, thermal
   - Marvell EBU: ethernet switch on Turris Omnia
   - NXP i.MX: otp ram, USB, wifi, bluetooth, spdif, spi, pmic,
     eeprom, mmc, nand
   - TI OMAP:
   - Qualcomm: coresight, gyro/accelerometer, hdmi
   - Renesas: pmic, soc-id
   - Rockchip: qos
   - Samsung: audio on Odroid-X
   - Socfpga: FPGA manager, i2c, led, can, watchdog, nand, power monitor
   - STi: video in/out
   - STM32: timer, pwm, i2c, rtc, add, i2s
   - NVIDIA Tegra: tpm
   - Uniphier: mmc/sd pinmux
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Arnd Bergmann:
 "A total of 380 patches this time, mostly adding support for more
  hardware in the device tree descriptions. There is not much exciting
  here for 4.11, but I've tried my best to condense the information from
  the pull requests I got into a readable summary.

  Noteworthy changes to existing platforms include:

   - The GIC memory map was a bit wrong almost everywhere and now gets
     fixed up

   - The Allwinner platforms convert to the generic pinmux properties

   - The Marvell EBU platforms now use the new DSA binding

   - Samsung Exynos4212 was unused and gets removed

   - The Renesas power management got improved

  New production machines:

   - Lego Mindstorms EV3:
        https://www.lego.com/en-us/mindstorms/about-ev3

   - Beelink X2 Android media box:
        http://linux-sunxi.org/Beelink_X2

   - "Romulus" baseboard management controller for OpenPower

   - Axentia TSE-850 Data Radio Channel (DARC) encoder:
        http://www.axentia.se/db/equipment.html

   - Luxul XAP-1410 and XWR-1200 wireless access points:
        https://luxul.com/xap-1410

  New SoCs:

   - Allwinner H2+ and V3s, both minor variations of already supported
     chips:
        http://www.allwinnertech.com/index.php?c=product&a=index&id=38

   - Marvell Prestera DX packet processors based on Armada XP
     architecture:
        http://www.marvell.com/switching/prestera-dx/

   - Samsung Exynos4412 Prime gets added, a minor variation of
     Exynos4412

  New developer and reference boards:

   - Lichee Pi One, Lichee Pi Zero and Orange Pi Zero, all based on
     Allwinner SoCs:
        http://linux-sunxi.org/LicheePi_One
        http://www.orangepi.org/orangepizero/

   - SAMA5d36ek Reference platform:
        http://www.atmel.com/tools/sama5d36-ek.aspx

   - Beaglebone Green Wireless and Black Wireless:
        https://beagleboard.org/black-wireless
        https://beagleboard.org/green-wireless

   - phyCORE-AM335x System on Module:
        http://phytec.com/products/system-on-modules/phycore/am335x/

   - New revision of "vf610-zii" Zodiac Inflight Innovations board

   - Various i.MX System-on-Module: Is.IoT MX6UL, SavageBoard, Engicam
     i.Core:
        http://www.opossom.com/english/index.html
        http://www.savageboard.org/
        http://www.engicam.com/en/products/embedded/som/sodimm/is-iot-mx6ul
        http://www.engicam.com/en/products/embedded/som/sodimm/i-core-m6s-dl-d-q

   - Liebherr (LWN) monitor 6 based on i.MX6 Quad, no idea what this is

   - Cleanups and bugfixes on at91, bcm53xx, i.MX, mvebu, omap, oxnas,
     qcom, rockchip, sti, stm32 and tegra

  New device supports added to some boards and SoCs, briefly by platform:

   - Allwinner: SPDIF, A33 cpufreq, A33 Mali GPU

   - Aspeed: network, ipmi bt, gpio, pinmux

   - Broadcom: video encoder for raspberry pi, qspi, ethernet, sd/mmc

   - TI DaVinci: gpio, lcdc, usb, video-in, uart

   - TI Keystone 2: MSM RAM, power/reset, uart

   - Mediatek MT2701: clocks, iommu, spi, nand, adc, thermal

   - Marvell EBU: ethernet switch on Turris Omnia

   - NXP i.MX: otp ram, USB, wifi, bluetooth, spdif, spi, pmic, eeprom,
     mmc, nand

   - TI OMAP:

   - Qualcomm: coresight, gyro/accelerometer, hdmi

   - Renesas: pmic, soc-id

   - Rockchip: qos

   - Samsung: audio on Odroid-X

   - Socfpga: FPGA manager, i2c, led, can, watchdog, nand, power monitor

   - STi: video in/out

   - STM32: timer, pwm, i2c, rtc, add, i2s

   - NVIDIA Tegra: tpm

   - Uniphier: mmc/sd pinmux"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (380 commits)
  ARM: dts: armada-385-linksys: fix DSA compatible property
  ARM: dts: Fix typo in armada-xp-98dx4251
  ARM: DTS: Fix register map for virt-capable GIC
  dt-bindings: arm,gic: Fix binding example for a virt-capable GIC
  ARM: dts: sun8i: sinlinx: Enable audio nodes
  ARM: dts: sun8i: parrot: Enable audio nodes
  ARM: dts: sun8i: Add audio codec, dai and card for A33
  ARM: dts: Add EMAC AXI settings for Arria10
  ARM: dts: am335x-chiliboard: Support charger
  ARM: dts: am335x-chiliboard: Support power button
  ARM: sun8i: dt: Add mali node
  dt-bindings: gpu: Add Mali Utgard bindings
  ARM: dts: stm32: Add I2C1 support for STM32429 eval board
  ARM: dts: stm32: Add I2C1 support for STM32F429 SoC
  ARM: dts: stm32: Use clock DT binding definition on stm32f429 family
  dt-bindings: mfd: stm32f4: Add missing binding definition
  dt-bindings: mfd: stm32f4: Fix STM32F4_X_CLOCK() macro
  ARM: dts: stm32: Enable pwm1 and pwm3 for stm32f469-disco
  ARM: dts: stm32: add Timers driver for stm32f429 MCU
  ARM: dts: add the AB8500 sysclk to the device trees
  ...
2017-02-23 15:46:25 -08:00
Chris Brandt
f59de56335 clk: renesas: mstp: ensure register writes complete
When there is no status bit, it is possible for the clock enable/disable
operation to have not completed by the time the driver code resumes
execution. This is due to the fact that write operations are sometimes
queued and delayed internally. Doing a read ensures the write operations
has completed.

Fixes: b6face404f ("ARM: shmobile: r7s72100: add essential clock nodes to dtsi")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-16 10:36:05 -08:00
Arnd Bergmann
3e011039a3 Amlogic DT updates for v4.11, round 2
- add SAR ADC driver
 - add ADC laddered keys to meson-gxbb-p200 board
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Merge tag 'amlogic-dt64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/late

Pull "Amlogic DT updates for v4.11, round 2" from Kevin Hilman:

- add SAR ADC driver
- add ADC laddered keys to meson-gxbb-p200 board

* tag 'amlogic-dt64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  ARM64: dts: meson-gxbb-p200: add ADC laddered keys
  ARM64: dts: meson: meson-gx: add the SAR ADC
  ARM64: dts: meson-gxl: add the pwm_ao_b pin
  ARM64: dts: meson-gx: add the missing pwm_AO_ab node
  clk: gxbb: fix CLKID_ETH defined twice
  ARM64: dts: meson-gxl: rename Nexbox A95x for consistency
  clk: gxbb: add the SAR ADC clocks and expose them
  dt-bindings: amlogic: Add WeTek boards
  ARM64: dts: meson-gxbb: Add support for WeTek Hub and Play
  dt-bindings: vendor-prefix: Add wetek vendor prefix
  ARM64: dts: meson-gxm: Rename q200 and q201 DT files for consistency
  ARM64: dts: meson-gx: Add HDMI HPD/DDC pinctrl nodes
  ARM64: dts: meson-gxbb-vega-s95: Add LED
  ARM64: dts: meson-gx: add the serial CTS and RTS pin groups
  ARM64: dts: meson-gx: add the missing uart_AO_B
  clk: meson-gxbb: Export HDMI clocks
  ARM64: dts: meson-gxm: add SCPI configuration for GXM
  ARM64: dts: meson-gx: move the SCPI and SRAM nodes to meson-gx
2017-02-16 17:50:04 +01:00
Arnd Bergmann
d0f7de9258 Samsung DeviceTree ARM64 update for v4.11, third round:
1. Add necessary initial configuration for clocks of display subsystem.
    Till now it worked mostly thanks to bootloader.
 2. Use macro definitions instead of hard-coded values for pinctrl on Exynos7.
 3. Enable USB 3.0 (DWC3) on Exynos7.
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Merge tag 'samsung-dt64-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/late

Pull "Samsung DeviceTree ARM64 update for v4.11, third round" from Krzysztof Kozłowski:

1. Add necessary initial configuration for clocks of display subsystem.
   Till now it worked mostly thanks to bootloader.
2. Use macro definitions instead of hard-coded values for pinctrl on Exynos7.
3. Enable USB 3.0 (DWC3) on Exynos7.

* tag 'samsung-dt64-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (27 commits)
  arm64: dts: exynos: Add regulators for Vbus and Vbus-Boost
  arm64: dts: exynos: Add USB 3.0 controller node for Exynos7
  arm64: dts: exynos: Use macros for pinctrl configuration on Exynos7
  pinctrl: dt-bindings: samsung: Add Exynos7 specific pinctrl macro definitions
  arm64: dts: exynos: Add initial configuration for DISP clocks for TM2/TM2e
  clk: samsung: exynos5433: Add data for 250MHz and 278MHz PLL rates
  clk: samsung: exynos5433: Add IDs for PHYCLK_MIPIDPHY0_* clocks
  arm64: dts: exynos: Add clocks to Exynos5433 LPASS module
  arm64: dts: exynos: set LDO7 regulator as always on
  arm64: dts: exynos: configure TV path clocks for Ultra HD modes
  arm64: dts: exynos: Fix drive strength of sd0_xxx pin definitions
  arm64: dts: exynos: Disable pull down for audio pins in Exynos5433 SoCs
  arm64: dts: exynos: Add TM2 touchkey node
  arm64: dts: exynos: Remove unneeded unit names in Exynos5433 nodes
  arm64: dts: exynos: Enable HDMI/TV path on Exynos5433-TM2
  arm64: dts: exynos: Add HDMI node to Exynos5433
  arm64: dts: exynos: Add DECON_TV node to Exynos5433
  arm64: dts: exynos: Fix addresses in node names on Exynos5433
  arm64: dts: exynos: Make TM2 and TM2E independent from each other
  arm64: dts: exynos: Fix wrong values for ldo23 and ldo25 on TM2/TM2E
  ...
2017-02-16 17:46:52 +01:00
Guenter Roeck
6ff8ec98e1 clk: qcom: Do not drop device node twice
of_find_node_by_name() drops the reference to a passed device node.
It is not necessary to drop it again, and doing so may result in the
device node being released prematurely.

Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Fixes: ee15faffef ("clk: qcom: common: Add API to register board clocks backwards compatibly")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-15 17:17:55 -08:00
Thomas Petazzoni
1006ccccd0 clk: mvebu: adjust clock handling for the CP110 system controller
This commit:

 - makes the GOP_DP (bit 9) gatable clock a child clock of the
   SD_MMC_GOP (bit 18) clock, as it should have been. The clock for bit
   18 was just named SD_MMC, but since it also covers the GOP block, it
   is renamed SD_MMC_GOP.

 - makes the MG (bit 5) gatable clock a child clock of the MG_CORE
   clock (bit 6)

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-14 10:59:15 -08:00
Chris Packham
3370726042 clk: mvebu: Expand mv98dx3236-core-clock support
The initial implementation in commit e120c17a70 ("clk: mvebu: support
for 98DX3236 SoC") hardcoded a fixed value for the main PLL frequency.
Port code from the Marvell supplied Linux kernel to support different
PLL frequencies and provide clock gating support.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-10 09:21:30 -08:00
Baoyou Xie
48239135dd clk: zte: add i2s clocks for zx296718
The i2s related clock support is missing from the existing zx296718
clock driver. This patch adds it, so that the upstream ZX I2S driver
can work out.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-10 09:17:38 -08:00
Wei Yongjun
09bdcd6e17 clk: sunxi-ng: sun9i-a80: Fix wrong pointer passed to PTR_ERR()
PTR_ERR should access the value just tested by IS_ERR, otherwise
the wrong error code will be returned.

Fixes: 783ab76ae5 ("clk: sunxi-ng: Add A80 Display Engine CCU")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-06 15:01:29 -08:00
Arnd Bergmann
f3f1ea34fe clk: sunxi-ng: select SUNXI_CCU_MULT for sun5i
We get a link error when CCU_MULT is not set with the
newly added driver:

drivers/clk/sunxi-ng/ccu-sun5i.o:(.data.__compound_literal.17+0x4): undefined reference to `ccu_mult_ops'
drivers/clk/sunxi-ng/ccu-sun5i.o:(.data.__compound_literal.5+0x4): undefined reference to `ccu_mult_ops'

Fixes: 5e73761786 ("clk: sunxi-ng: Add sun5i CCU driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-06 14:48:59 -08:00
Stephen Boyd
5d806f9fc8 clk: sunxi-ng: Check kzalloc() for errors and cleanup error path
This kzalloc() could fail. Let's bail out with -ENOMEM here
instead of NULL dereferencing. That silences static checkers. We
should also cleanup on the error path even though this function
returning an error probably means the system won't boot.

Cc: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-06 14:48:32 -08:00
Thierry Reding
ca6f2796ee clk: tegra: Add BPMP clock driver
This driver uses the services provided by the BPMP firmware driver to
implement a clock driver based on the MRQ_CLK request. This part of the
BPMP ABI provides a means to enumerate and control clocks and should
allow the driver to work on any chip that supports this ABI.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-03 12:36:36 -08:00
Stephen Boyd
5775a4c76f Non-critical fix for the pclk_edp divider on rk3399, one new clock-id
and making niu (interconnect) clocks critical on rk3288, as
 CLK_IGNORE_UNUSED is not enough to keep them running all the time
 when more users access particular clock subtrees.
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Merge tag 'v4.11-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull Rockchip clk updates from Heiko Stuebner:

  "Non-critical fix for the pclk_edp divider on rk3399, one new
  clock-id and making niu (interconnect) clocks critical on
  rk3288, as CLK_IGNORE_UNUSED is not enough to keep them running
  all the time when more users access particular clock subtrees."

* tag 'v4.11-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: rk3288: make all niu clocks critical
  clk: rockchip: use rk3288 vip_out clock ids
  clk: rockchip: add rk3288 vip_out clock id
  clk: rockchip: fix the incorrect pclk_edp div width for RK3399
2017-02-03 12:07:35 -08:00
Masahiro Yamada
2a3532214e clk: uniphier: add eMMC clock for LD11 and LD20 SoCs
Add clock for the Cadence eMMC controller on LD11/LD20.
For the other SoCs, the clock for the eMMC controller is included
in the MIO/SD control block.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-03 11:55:21 -08:00
Masahiro Yamada
19771622d8 clk: uniphier: add NAND clock for all UniPhier SoCs
Add clock line for the Denali NAND controller.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-02-03 11:55:20 -08:00
Stephen Boyd
2fbae64aad Allwinner clock changes for 4.11
- Support for one new SoC, the V3s
   - Convertion of two old SoCs to the new framework, the old sun5i family
     and the A80
   - A bunch of fixes
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Merge tag 'sunxi-clk-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next

Pull Allwinner clock updates from Maxime Ripard:

  - Support for one new SoC, the V3s
  - Conversion of two old SoCs to the new framework, the old sun5i family
    and the A80
  - A bunch of fixes

* tag 'sunxi-clk-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (25 commits)
  ARM: dts: sun9i: Switch to new clock bindings
  clk: sunxi-ng: Add A80 Display Engine CCU
  clk: sunxi-ng: Add A80 USB CCU
  clk: sunxi-ng: Add A80 CCU
  clk: sunxi-ng: Support separately grouped PLL lock status register
  clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT
  clk: sunxi-ng: mux: honor CLK_SET_RATE_NO_REPARENT flag
  clk: sunxi-ng: mux: Fix determine_rate for mux clocks with pre-dividers
  clk: sunxi-ng: a33: Set CLK_SET_RATE_PARENT for the GPU
  clk: sunxi-ng: Call divider_round_rate if we only have a single parent
  ARM: gr8: Convert to CCU
  ARM: sun5i: Convert to CCU
  clk: sunxi-ng: Add sun5i CCU driver
  clk: sunxi-ng: Implement global pre-divider
  clk: sunxi-ng: Implement multiplier maximum
  clk: sunxi-ng: mult: Fix minimum in round rate
  clk: sunxi-ng: Implement factors offsets
  clk: sunxi-ng: multiplier: Add fractional support
  clk: sunxi-ng: add support for V3s CCU
  dt-bindings: add device binding for the CCU of Allwinner V3s
  ...
2017-02-03 11:47:47 -08:00
Viresh Kumar
8a31d9d942 PM / OPP: Update OPP users to put reference
This patch updates dev_pm_opp_find_freq_*() routines to get a reference
to the OPPs returned by them.

Also updates the users of dev_pm_opp_find_freq_*() routines to call
dev_pm_opp_put() after they are done using the OPPs.

As it is guaranteed the that OPPs wouldn't get freed while being used,
the RCU read side locking present with the users isn't required anymore.
Drop it as well.

This patch also updates all users of devfreq_recommended_opp() which was
returning an OPP received from the OPP core.

Note that some of the OPP core routines have gained
rcu_read_{lock|unlock}() calls, as those still use RCU specific APIs
within them.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> [Devfreq]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-30 09:22:21 +01:00