Commit Graph

3628 Commits

Author SHA1 Message Date
Linus Torvalds
f5e8c0ff56 One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
caused some of these clocks to turn off when they were always left
 on before.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
  caused some of these clocks to turn off when they were always left on
  before"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk/samsung: exynos542x: mark some clocks as critical
2017-01-21 18:46:45 -08:00
Marek Szyprowski
318fa46cc6 clk/samsung: exynos542x: mark some clocks as critical
Some parent clocks of the Exynos542x clock blocks, which have separate
power domains (like DISP, MFC, MSC, GSC, FSYS and G2D) must be always
enabled to access any register related to power management unit or devices
connected to it. For the time being, until a proper solution based on
runtime PM is applied, mark those clocks as critical (instead of ignore
unused or even no flags) to prevent disabling them.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com> [Exynos5800 Peach Pi Chromebook]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:11:05 -08:00
Linus Torvalds
d72f0ded89 One fix for a broken driver on Renesas RZ/A1 SoCs with bootloaders that don't
turn all the clks on and another fix for stm32f4 SoCs where we have multiple
 drivers attaching to the same DT node.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "One fix for a broken driver on Renesas RZ/A1 SoCs with bootloaders
  that don't turn all the clks on and another fix for stm32f4 SoCs where
  we have multiple drivers attaching to the same DT node"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: stm32f4: Use CLK_OF_DECLARE_DRIVER initialization method
  clk: renesas: mstp: Support 8-bit registers for r7s72100
2017-01-06 15:35:27 -08:00
Gabriel Fernandez
3868f132cc clk: stm32f4: Use CLK_OF_DECLARE_DRIVER initialization method
Clock and reset controller use same compatible strings (same IP).

Since commit 989eafd0b6 ("clk: core: Avoid double initialization of
clocks") the OF core flags clock controllers registered with the
CLK_OF_DECLARE() macro as OF_POPULATED, so platform devices with the same
compatible string will not be registered.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-21 16:33:14 -08:00
Chris Brandt
e2a33c34dd clk: renesas: mstp: Support 8-bit registers for r7s72100
The RZ/A1 is different than the other Renesas SOCs because the MSTP
registers are 8-bit instead of 32-bit and if you try writing values as
32-bit nothing happens...meaning this driver never worked for r7s72100.

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>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-21 16:33:14 -08:00
Linus Torvalds
66d466722c Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:

 - an update for clkdev registration error detection to simplify users

 - add cpu capacity parsing from DT

 - support for larger cachelines found on UniPhier caches

 - documentation for udelay constants

 - properly tag assembly function declarations

 - remove unnecessary indirection of asm/mach-types.h

 - switch to syscall table based generation to simplify future additions
   of system calls, along with correpsonding commit for pkey syscalls

 - remove redundant sa1101 header file

 - RONX protect modules when they're in the vmalloc region

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: mm: allow set_memory_*() to be used on the vmalloc region
  ARM: mm: fix set_memory_*() bounds checks
  ARM: 8631/1: clkdev: Detect errors in clk_hw_register_clkdev() for mass registration
  ARM: 8629/1: vfp: properly tag assembly function declarations in C code
  ARM: 8622/3: add sysfs cpu_capacity attribute
  ARM: 8621/3: parse cpu capacity-dmips-mhz from DT
  ARM: 8623/1: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache
  ARM: Update mach-types
  ARM: sa1100: remove SA-1101 header file
  ARM: 8619/1: udelay: document the various constants
  ARM: wire up new pkey syscalls
  ARM: convert to generated system call tables
  ARM: remove indirection of asm/mach-types.h
2016-12-15 16:06:15 -08:00
Linus Torvalds
e79ab194d1 ARM: SoC platform updates for v4.10
These are updates for platform specific code on 32-bit ARM machines,
 essentially anything that can not (yet) be expressed using DT files.
 
 Noteworthy changes include:
 
 - Added support for the TI DRA71x family of SoCs in mach-omap2,
   this is an new variant of the the DRA72x/DRA74x automotive
   infotainment chips we already supported for a while.
 
 - Added support for the ST STM32F746 SoC, the first Cortex-M7
   based microcontroller we support, related to the smaller
   STM32F4 family.
 
 - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile,
   see http://elinux.org/RZ-G
 
 - SMP is now supported on the OX820 platform
 
 - A lot of code in mach-omap2 gets removed as a follow-up to
   removing support for board files in the previous release
 
 - Davinci has some new work to improve USB support
 
 - For i.MX, the performance monitor now supports profiling the
   memory controller using 'perf'
 
 Conflicts:
 arch/arm/mach-shmobile/setup-rcar-gen2.c: rcar_gen2_clocks_init()
 is gone, calling of_clk_init(NULL) is sufficient now.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - Added support for the TI DRA71x family of SoCs in mach-omap2, this
     is an new variant of the the DRA72x/DRA74x automotive infotainment
     chips we already supported for a while.

   - Added support for the ST STM32F746 SoC, the first Cortex-M7 based
     microcontroller we support, related to the smaller STM32F4 family.

   - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see
     http://elinux.org/RZ-G

   - SMP is now supported on the OX820 platform

   - A lot of code in mach-omap2 gets removed as a follow-up to removing
     support for board files in the previous release

   - Davinci has some new work to improve USB support

   - For i.MX, the performance monitor now supports profiling the memory
     controller using 'perf'"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits)
  ARM: davinci: da830-evm: use gpio descriptor for mmc pins
  ARM: davinci: da850-evm: use gpio descriptor for mmc pins
  ARM: davinci: hawk: use gpio descriptor for mmc pins
  ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6
  ARM: davinci: da8xx: Fix ohci device name
  ARM: oxnas: Add OX820 config and makefile entry
  ARM: oxnas: Add OX820 SMP support
  ARM: davinci: PM: fix build when da850 not compiled in
  ARM: orion5x: remove legacy support of ls-chl
  ARM: integrator: drop EBI access use syscon
  ARM: BCM5301X: Add back handler ignoring external imprecise aborts
  ARM: davinci: PM: support da8xx DT platforms
  ARM: davinci: PM: cleanup: remove references to pdata
  ARM: davinci: PM: rework init, remove platform device
  ARM: Kconfig: Introduce MACH_STM32F746 flag
  ARM: mach-stm32: Add a new SOC - STM32F746
  ARM: shmobile: document SK-RZG1E board
  ARM: shmobile: r8a7745: basic SoC support
  ARM: imx: mach-imx6ul: add imx6ull support
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ...
2016-12-15 15:39:02 -08:00
Linus Torvalds
3ec5e8d82b ARM: SoC non-urgent fixes for v4.10
As usual, we queue up a few fixes that don't seem urgent enough to go in
 through -rc, or that just came a little too late given their size.
 
 The zx fixes make the platform finally boot on real hardware, the
 davinci and imx31 get the DT support working better for some of
 the machines that are still normally used with classic board files.
 One tegra fix is important for new bootloader versions, but the
 bug has been around for a while without anyone noticing.
 
 The other changes are mostly cosmetic.
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-urgent fixes from Arnd Bergmann:
 "As usual, we queue up a few fixes that don't seem urgent enough to go
  in through -rc, or that just came a little too late given their size.

  The zx fixes make the platform finally boot on real hardware, the
  davinci and imx31 get the DT support working better for some of the
  machines that are still normally used with classic board files. One
  tegra fix is important for new bootloader versions, but the bug has
  been around for a while without anyone noticing.

  The other changes are mostly cosmetic"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: tegra: Add missing Smaug revision
  arm64: tegra: Add VDD_GPU regulator to Jetson TX1
  arm64: dts: zte: clean up gic-v3 redistributor properties
  arm64: dts: zx: Fix gic GICR property
  bus: vexpress-config: fix device reference leak
  soc: ti: qmss: fix the case when !SMP
  ARM: lpc32xx: drop duplicate header device.h
  ARM: ixp4xx: drop duplicate header gpio.h
  ARM: socfpga: fix spelling mistake in error message
  ARM: dts: imx6q-cm-fx6: fix fec pinctrl
  ARM: dts: imx7d-pinfunc: fix UART pinmux defines
  ARM: dts: imx6qp: correct LDB clock inputs
  ARM: OMAP2+: pm-debug: Use seq_putc() in two functions
  ARM: OMAP2+: Remove the omapdss_early_init_of() function
  mfd: tps65217: Fix mismatched interrupt number
  ARM: zx: Fix error handling
  ARM: spear: Fix error handling
  ARM: davinci: da850: Fix pwm name matching
  ARM: clk: imx31: properly init clocks for machines with DT
  clk: imx31: fix rewritten input argument of mx31_clocks_init()
  ...
2016-12-15 15:15:13 -08:00
Boris Brezillon
2aab7a2055 clk: bcm: Fix 'maybe-uninitialized' warning in bcm2835_clock_choose_div_and_prate()
best_rate is reported as potentially uninitialized by gcc.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: 155e8b3b0e ("clk: bcm: Support rate change propagation on bcm2835 clocks")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-12 11:25:40 -08:00
Kuninori Morimoto
71a2f11511 clk: add devm_get_clk_from_child() API
Some driver is using this type of DT bindings for clock (more detail,
see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt).

	sound_soc {
		...
		cpu {
			clocks = <&xxx>;
			...
		};
		codec {
			clocks = <&xxx>;
			...
		};
	};

Current driver in this case uses of_clk_get() for each node, but there
is no devm_of_clk_get() today.
OTOH, the problem of having devm_of_clk_get() is that it encourages the
use of of_clk_get() when clk_get() is more desirable.

Thus, this patch adds new devm_get_clk_from_chile() which explicitly
reads as get a clock from a child node of this device.
By this function, we can also use this type of DT bindings

	sound_soc {
		clocks = <&xxx>, <&xxx>;
		clock-names = "cpu", "codec";
		clock-ranges;
		...
		cpu {
			...
		};
		codec {
			...
		};
	};

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[sboyd@codeurora.org: Rename subject to clk + add API]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:37:33 -08:00
Arvind Yadav
16cd77645b clk: st: clk-flexgen: Unmap region obtained by of_iomap
Free memory mapping, if probe is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:35:22 -08:00
Arvind Yadav
113ff9c99a clk: keystone: pll: Unmap region obtained by of_iomap
Free memory mapping, if of_pll_div_clk_init is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:34:15 -08:00
Arvind Yadav
81ba3cc29a clk:mmp:clk-of-mmp2: Free memory and Unmap region obtained by kzalloc and of_iomap
Free memory and memory mapping , if mmp2_clk_init is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
[sboyd@codeaurora.org: Put return at the right place]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:29:39 -08:00
Arvind Yadav
19b9f29d25 clk:mmp:clk-of-pxa910: Free memory and Unmap region obtained by kzmalloc and of_iomap
Free memory and memory mapping , if pxa910_clk_init is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:29:38 -08:00
Arvind Yadav
8daa528204 clk: mmp: clk-of-pxa1928: Free memory obtained by kzalloc
Free memory, if init is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:29:37 -08:00
Christophe JAILLET
5785271ef2 clk: cdce925: Fix limit check
It is likely that instead of '1>64', 'q>64' was expected.

Moreover, according to datasheet,
   http://www.ti.com/lit/ds/symlink/cdce925.pdf
   SCAS847I - JULY 2007 - REVISED OCTOBER 2016
PLL settings limits are: 16 <= q <= 63
So change the upper limit check from 64 to 63.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:29:36 -08:00
Stephen Boyd
100edfe33a clk: bcm: Make COMMON_CLK_IPROC into a library
The broadcom clk driver Kconfig file selects and depends on the
COMMON_CLK_IPROC config for different SoC specific drivers. Let's
simplify this by always selecting the COMMON_CLK_IPROC config,
turning it into a set of library code. We still want to retain
the SoC specific options, so we leave those in place. Since we're
here we also drop COMMON_CLK dependency because that's implicitly
handled by including this file in drivers/clk/Kconfig in the
right place and also make CLK_BCM_KONA default to y on the
architecture it exists for instead of plain default y.

Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <ray.jui@broadcom.com>
Cc: Jon Mason <jonmason@broadcom.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:29:35 -08:00
Tang Yuantian
447093584f clk: qoriq: added ls1012a clock configuration
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com>
[sboyd@codeaurora.org: Sorted list]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 16:29:30 -08:00
Grygorii Strashko
f8d17344a6 clk: ti: dra7: fix "failed to lookup clock node gmac_gmii_ref_clk_div" boot message
Prevent creating clk alias for non existing gmac_gmii_ref_clk_div clock and,
this way, eliminate excessive error message during boot:

 "ti_dt_clocks_register: failed to lookup clock node gmac_gmii_ref_clk_div"

Fixes: c097338ebd ("ARM: dts: dra7: cpsw: fix clocks tree")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 15:09:12 -08:00
Boris Brezillon
d86d46af84 clk: bcm: Allow rate change propagation to PLLH_AUX on VEC clock
The VEC clock requires needs to be set at exactly 108MHz. Allow rate
change propagation on PLLH_AUX to match this requirement wihtout
impacting other IPs (PLLH is currently only used by the HDMI encoder,
which cannot be enabled when the VEC encoder is enabled).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 15:06:18 -08:00
Boris Brezillon
155e8b3b0e clk: bcm: Support rate change propagation on bcm2835 clocks
Some peripheral clocks, like the VEC (Video EnCoder) clock need to be set
to a precise rate (in our case 108MHz). With the current implementation,
where peripheral clocks are not allowed to forward rate change requests
to their parents, it is impossible to match this requirement unless the
bootloader has configured things correctly, or a specific rate has been
assigned through the DT (with the assigned-clk-rates property).

Add a new field to struct bcm2835_clock_data to specify which parent
clocks accept rate change propagation, and support set rate propagation
in bcm2835_clock_determine_rate().

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 15:06:08 -08:00
Boris Brezillon
68af4fa8f3 clk: bcm2835: Avoid overwriting the div info when disabling a pll_div clk
bcm2835_pll_divider_off() is resetting the divider field in the A2W reg
to zero when disabling the clock.

Make sure we preserve this value by reading the previous a2w_reg value
first and ORing the result with A2W_PLL_CHANNEL_DISABLE.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: 41691b8862 ("clk: bcm2835: Add support for programming the audio domain clocks")
Cc: <stable@vger.kernel.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 14:55:04 -08:00
Richard Watts
035cd485a4 clk: ti: omap36xx: Work around sprz319 advisory 2.1
The OMAP36xx DPLL5, driving EHCI USB, can be subject to a long-term
frequency drift. The frequency drift magnitude depends on the VCO update
rate, which is inversely proportional to the PLL divider. The kernel
DPLL configuration code results in a high value for the divider, leading
to a long term drift high enough to cause USB transmission errors. In
the worst case the USB PHY's ULPI interface can stop responding,
breaking USB operation completely. This manifests itself on the
Beagleboard xM by the LAN9514 reporting 'Cannot enable port 2. Maybe the
cable is bad?' in the kernel log.

Errata sprz319 advisory 2.1 documents PLL values that minimize the
drift. Use them automatically when DPLL5 is used for USB operation,
which we detect based on the requested clock rate. The clock framework
will still compute the PLL parameters and resulting rate as usual, but
the PLL M and N values will then be overridden. This can result in the
effective clock rate being slightly different than the rate cached by
the clock framework, but won't cause any adverse effect to USB
operation.

Signed-off-by: Richard Watts <rrw@kynesim.co.uk>
[Upported from v3.2 to v4.9]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08 13:15:25 -08:00
Pan Bian
20979202ee clk: clk-wm831x: fix a logic error
Fix bug https://bugzilla.kernel.org/show_bug.cgi?id=188561. Function
wm831x_clkout_is_prepared() returns "true" when it fails to read
CLOCK_CONTROL_1. "true" means the device is already prepared. So
return "true" on the read failure seems improper.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Fixes: f05259a6ff ("clk: wm831x: Add initial WM831x clock driver")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-07 16:24:45 -08:00
Masahiro Yamada
1221ae211f clk: uniphier: add cpufreq data for LD11, LD20 SoCs
Add more data to 64bit SoCs for the cpufreq support.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-07 16:17:03 -08:00
Masahiro Yamada
d08f1f0d59 clk: uniphier: add CPU-gear change (cpufreq) support
Core support code for CPU frequency changes, which will be used by
the generic cpufreq driver.

The register view is different from the generic clk-mux; it has
a separate status register, and an update bit to load the register
setting.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-07 16:17:01 -08:00
Stephen Boyd
e3f4358e23 Merge tag 'v4.10-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next
Pull rockchip clk driver updates from Heiko Stuebner:

A new clock controller for the rk1108 soc (single-core Cortex-A7+DSP),
a fix making sure the cpuclk rate is actually valid, before trying to
set it and a copy-paste fix for the rk3399's testclk.

* tag 'v4.10-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: add clock controller for rk1108
  dt-bindings: add documentation for rk1108 cru
  clk: rockchip: add dt-binding header for rk1108
  clk: rockchip: fix copy-paste error in rk3399 testclk
  clk: rockchip: validity should be checked prior to cpu clock rate change
2016-12-06 15:17:26 -08:00
Sricharan R
96893e101e clk: qcom: Put venus core0/1 gdscs to hw control mode
The venus video ip's internal core blocks are under the
control of the firmware and their powerdomains needs to be
'ON' only when used by the firmware. So putting it into
hw controlled mode lets this to happen, otherwise the firmware
hangs checking for this.

Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 16:41:19 -08:00
Rajendra Nayak
904bb4f5c7 clk: qcom: gdsc: Add support for gdscs with HW control
Some GDSCs might support a HW control mode, where in the power
domain (gdsc) is brought in and out of low power state (while
unsued) without any SW assistance, saving power.
Such GDSCs can be configured in a HW control mode when powered on
until they are explicitly requested to be powered off by software.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 16:41:15 -08:00
Stephen Boyd
5e2035b90e Two small fixes for MIPI PLLs on sunxi devices and a build fix
for a Broadcom clk driver having unmet dependencies.
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Merge branch 'clk-fixes' into clk-next

* clk-fixes:
  clk: bcm: Fix unmet Kconfig dependencies for CLK_BCM_63XX
  clk: sunxi-ng: enable so-said LDOs for A33 SoC's pll-mipi clock
  clk: sunxi-ng: sun6i-a31: Enable PLL-MIPI LDOs when ungating it
2016-11-23 14:31:45 -08:00
Florian Fainelli
b7d79eb461 clk: bcm: Fix unmet Kconfig dependencies for CLK_BCM_63XX
With commit f4e8715099 ("clk: iproc: Make clocks visible options"),
COMMON_CLK_IPROC gained a dependency on ARCH_BCM_IPROC, yet CLK_BCM_63XX
also selects that option, this causes the following Kconfig warning:

warning: (CLK_BCM_63XX) selects COMMON_CLK_IPROC which has unmet direct
dependencies ((ARCH_BCM_IPROC || COMPILE_TEST) && COMMON_CLK)

Fix this by adding proper depends for COMMON_CLK_IPROC

Fixes: f4e8715099 ("clk: iproc: Make clocks visible options")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
[sboyd@codeaurora.org: Drop default part as it's redundant]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 14:31:11 -08:00
Icenowy Zheng
98fb2b95d2 clk: sunxi-ng: enable so-said LDOs for A33 SoC's pll-mipi clock
In the user manual of A33 SoC, the bit 22 and 23 of pll-mipi control
register is called "LDO{1,2}_EN", and according to the BSP source code
from Allwinner [1], the LDOs are enabled during the clock's enabling
process.

The clock failed to generate output if the two LDOs are not enabled.

Add the two bits to the clock's gate bits, so that the LDOs are enabled
when the PLL is enabled.

[1] https://github.com/allwinner-zh/linux-3.4-sunxi/blob/master/drivers/clk/sunxi/clk-sun8iw5.c#L429

Fixes: d05c748bd7 ("clk: sunxi-ng: Add A33 CCU support")
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-11-23 12:32:39 -08:00
Boris Brezillon
f2a46926ab clk: bcm2835: Fix ->fixed_divider of pllh_aux
There is no fixed divider on pllh_aux.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 11:32:22 -08:00
Georgi Djakov
c260524aba clk: qcom: clk-rpm: Fix clk_hw references
Fix the clk_hw references to the actual clocks and add a xlate function
to return the hw pointers from the already existing static array.

Reported-by: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 11:12:48 -08:00
Georgi Djakov
81b7667aac clk: qcom: clk-smd-rpm: Fix clk_hw references
Fix the clk_hw references to the actual clocks and add a xlate function
to return the hw pointers from the already existing static array.

Reported-by: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 11:12:47 -08:00
Rajendra Nayak
5f5001a978 clk: qcom: Move all sdcc rcgs to use clk_rcg2_floor_ops
The sdcc driver for msm8996/msm8916/msm8974/msm8994 and apq8084
expects a clk_set_rate() on the sdcc rcg clk to set
a floor value of supported clk rate closest to the requested
rate, by looking up the frequency table.
So move all the sdcc rcgs on all these platforms to use the
newly introduced clk_rcg2_floor_ops

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 11:00:06 -08:00
Rajendra Nayak
081ba80206 clk: qcom: Add rcg ops to return floor value closest to the requested rate
The default behaviour with clk_rcg2_ops is for the
clk_round_rate()/clk_set_rate() to return/set a ceil clock
rate closest to the requested rate by looking up the corresponding
frequency table.
However, we do have some instances (mainly sdcc on various platforms)
of clients expecting a clk_set_rate() to set a floor value instead.
Add a new clk_rcg2_floor_ops to handle this for such specific
rcg instances

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23 11:00:05 -08:00
Geert Uytterhoeven
9388093db4 ARM: 8631/1: clkdev: Detect errors in clk_hw_register_clkdev() for mass registration
Unlike clk_register_clkdev(), clk_hw_register_clkdev() doesn't check for
passed error objects from a previous registration call. Hence the caller
of clk_hw_register_*() has to check for errors before calling
clk_hw_register_clkdev*().

Make clk_hw_register_clkdev() more similar to clk_register_clkdev() by
adding this error check, removing the burden from callers that do mass
registration.

Fixes: e4f1b49bda ("clkdev: Add clk_hw based registration APIs")
Fixes: 944b9a41e0 ("clk: ls1x: Migrate to clk_hw based OF and registration APIs")
Fixes: 44ce9a9ae9 ("MIPS: TXx9: Convert to Common Clock Framework")
Fixes: f48d947a16 ("clk: clps711x: Migrate to clk_hw based OF and registration APIs")
Fixes: b4626a7f48 ("CLK: Add Loongson1C clock support")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-11-22 11:45:28 +00:00
Stephen Boyd
c705d22b64 Exynos5433 SoC related fixes:
- addition of missing documentation and DT properties for the CMU_AUD
    block source clocks,
  - correction of CMU_FSYS parent clock definition,
  - marking as critical clocks which have to be enabled in order
    to access control registers of child CMUs.
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Merge tag 'clk-v4.10-exynos5433' of git://linuxtv.org/snawrocki/samsung into clk-next

Pull Exynos5433 SoC updates from Sylwester Nawrocki:

 - addition of missing documentation and DT properties for the CMU_AUD
   block source clocks,
 - correction of CMU_FSYS parent clock definition,
 - marking as critical clocks which have to be enabled in order
   to access control registers of child CMUs.

* tag 'clk-v4.10-exynos5433' of git://linuxtv.org/snawrocki/samsung:
  clk: exynos5433: Mark some clocks as critical
  clk: exynos5433: Add documentation for the audio block parent clocks
  clk: exynos5433: Fix parent clocks for FSYS block
2016-11-21 17:27:02 -08:00
Chen-Yu Tsai
95881a54b8 clk: sunxi-ng: sun6i-a31: Enable PLL-MIPI LDOs when ungating it
The PLL-MIPI clock is somewhat special as it has its own LDOs which
need to be turned on for this PLL to actually work and output a clock
signal.

Add the 2 LDO enable bits to the gate bits. This fixes issues with
the TCON not sending vblank interrupts when the tcon and dot clock are
indirectly clocked from the PLL-MIPI clock.

Fixes: c6e6c96d8f ("clk: sunxi-ng: Add A31/A31s clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-11-21 19:50:49 +01:00
Olof Johansson
04c0d567d3 i.MX non-critical fixes for 4.10:
- A series from Vladimir to fix broken i.MX31 DT clock initialization.
    As i.MX31 DT support is still not quite complete, the changes are
    tested on qemu kzm target and mx31lite board with simple written DTS
    files.
  - A fix for CompuLab's sbc-fx6 baseboard to remove wrong fec pinctrl
    setting.
  - A DTS correction for i.MX6QP to reflect the change that the gate of
    LDB clock has been moved before the divider.
  - An imx7d-pinfunc fix for UART pinmux defines
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Merge tag 'imx-fix-nc-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/fixes-non-critical

i.MX non-critical fixes for 4.10:
 - A series from Vladimir to fix broken i.MX31 DT clock initialization.
   As i.MX31 DT support is still not quite complete, the changes are
   tested on qemu kzm target and mx31lite board with simple written DTS
   files.
 - A fix for CompuLab's sbc-fx6 baseboard to remove wrong fec pinctrl
   setting.
 - A DTS correction for i.MX6QP to reflect the change that the gate of
   LDB clock has been moved before the divider.
 - An imx7d-pinfunc fix for UART pinmux defines

* tag 'imx-fix-nc-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6q-cm-fx6: fix fec pinctrl
  ARM: dts: imx7d-pinfunc: fix UART pinmux defines
  ARM: dts: imx6qp: correct LDB clock inputs
  ARM: clk: imx31: properly init clocks for machines with DT
  clk: imx31: fix rewritten input argument of mx31_clocks_init()
  ARM: dts: imx31: move CCM device node to AIPS2 bus devices
  ARM: dts: imx31: fix clock control module interrupts description

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18 09:56:49 -08:00
Marek Szyprowski
37bf4ab84b clk: exynos5433: Mark some clocks as critical
Some parent clocks of the Exynos5433 CMUs must be always enabled to access
any register in the given CMU or devices connected to it. For the time
being, until a proper solution based on runtime PM is applied, mark those
clocks as critical (instead of ignore unused) to prevent disabling them.

Reported-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2016-11-18 13:55:51 +01:00
Stephen Boyd
9baabf4341 clk: renesas: Updates for v4.10 (take three)
- CSI2 and VIN clocks for R-Car M3-W,
   - Clock drivers for new RZ/G1M and RZ/G1E SoCs,
   - Minor bug fix for R-Car H3.
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Merge tag 'clk-renesas-for-v4.10-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull more clk driver updates from Geert Uytterhoeven:

  - CSI2 and VIN clocks for R-Car M3-W,
  - Clock drivers for new RZ/G1M and RZ/G1E SoCs,
  - Minor bug fix for R-Car H3.

* tag 'clk-renesas-for-v4.10-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: cpg-mssr: Add R8A7745 support
  clk: renesas: cpg-mssr: Add R8A7743 support
  clk: renesas: cpg-mssr: Add common R-Car Gen2 support
  clk: renesas: r8a7795: Fix HDMI parent clock
  clk: renesas: r8a7796: Add VIN clocks
  clk: renesas: r8a7796: Add CSI2 clocks
2016-11-17 15:07:23 -08:00
Stephen Boyd
54fd1b3bc4 clk: renesas: Updates for v4.10 (take two)
- Add R-Car RST driver for obtaining mode pin state, and move the
     related functionality from platform code to DT,
   - Add r8a7743 and r8a7745 CPG Core Clock Definitions.
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Merge tag 'clk-renesas-for-v4.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull Renesas clk driver updates from Geerty Uytterhoeven:

  - Add R-Car RST driver for obtaining mode pin state, and move the
    related functionality from platform code to DT,
  - Add r8a7743 and r8a7745 CPG Core Clock Definitions.

The commits here are intermingled with arm-soc material because
of the hard dependency we're breaking between mach code and
driver code. We're replacing that with a driver dependency
between the soc driver and the clk driver.

* tag 'clk-renesas-for-v4.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: (25 commits)
  clk: renesas: Add r8a7745 CPG Core Clock Definitions
  clk: renesas: Add r8a7743 CPG Core Clock Definitions
  clk: renesas: rcar-gen2: Remove obsolete rcar_gen2_clocks_init()
  clk: renesas: r8a7779: Remove obsolete r8a7779_clocks_init()
  clk: renesas: r8a7778: Remove obsolete r8a7778_clocks_init()
  ARM: shmobile: rcar-gen2: Stop passing mode pins state to clock driver
  ARM: shmobile: r8a7779: Stop passing mode pins state to clock driver
  ARM: shmobile: r8a7778: Stop passing mode pins state to clock driver
  clk: renesas: rcar-gen3-cpg: Remove obsolete rcar_gen3_read_mode_pins()
  clk: renesas: r8a7796: Obtain mode pin values from R-Car RST driver
  clk: renesas: r8a7795: Obtain mode pin values from R-Car RST driver
  clk: renesas: rcar-gen2: Obtain mode pin values using RST driver
  clk: renesas: r8a7779: Obtain mode pin values from R-Car RST driver
  clk: renesas: r8a7778: Obtain mode pin values using R-Car RST driver
  arm64: renesas: r8a7796 dtsi: Add device node for RST module
  arm64: renesas: r8a7795 dtsi: Add device node for RST module
  ARM: dts: r8a7794: Add device node for RST module
  ARM: dts: r8a7793: Add device node for RST module
  ARM: dts: r8a7792: Add device node for RST module
  ARM: dts: r8a7791: Add device node for RST module
  ...
2016-11-17 13:31:07 -08:00
Marek Szyprowski
9a81188e4c clk: exynos5433: Fix parent clocks for FSYS block
The proper parent clock for FSYS block is "aclk_fsys_200"
according to the Exynos5433 reference manual.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2016-11-17 13:58:37 +01:00
Stephen Boyd
30e1db86ba clk: sunxi-ng: Mark structs static and cleanup spaces
Some checkpatch warnings about spaces were missed and we didn't
mark two structs as static. Clean it up.

Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-16 11:27:28 -08:00
Stephen Boyd
38320181c7 Allwinner clock changes for 4.10
The usual patches from us, but most notably the introduction of the A64
 clocks unit.
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Merge tag 'sunxi-clk-for-4.10' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next

Pull Allwinner clock changes from Maxime Ripard:

The usual patches from us, but most notably the introduction of the A64
clocks unit.

* tag 'sunxi-clk-for-4.10' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  clk: sunxi-ng: sun8i-h3: Set CLK_SET_RATE_PARENT for audio module clocks
  clk: sunxi-ng: sun8i-a23: Set CLK_SET_RATE_PARENT for audio module clocks
  clk: sunxi-ng: Add A64 clocks
  clk: sunxi-ng: Implement minimum for multipliers
  clk: sunxi-ng: Add minimums for all the relevant structures and clocks
  clk: sunxi-ng: Finish to convert to structures for arguments
  clk: sunxi-ng: Remove the use of rational computations
  clk: sunxi-ng: Rename the internal structures
  clk: sunxi: mod0: improve function-level documentation
2016-11-16 11:19:20 -08:00
Stephen Boyd
c284a7ba72 i.MX clock updates for 4.10:
- A patch series to fix the long standing issue with glitchy parent
    mux of ldb_di_clk, which can hang up LVDS display when ipu_di_clk
    is sourced from ldb_di_clk.
  - A patch to add imx6ull clock support on top of imx6ul clock driver.
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Merge tag 'imx-clk-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next

Pull i.MX clock updates from Shawn Guo:

 - A patch series to fix the long standing issue with glitchy parent
   mux of ldb_di_clk, which can hang up LVDS display when ipu_di_clk
   is sourced from ldb_di_clk.
 - A patch to add imx6ull clock support on top of imx6ul clock driver.

* tag 'imx-clk-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx: clk-imx6ul: add clk support for imx6ull
  clk: imx6: Fix procedure to switch the parent of LDB_DI_CLK
  clk: imx6: Make the LDB_DI0 and LDB_DI1 clocks read-only
  clk: imx6: Mask mmdc_ch1 handshake for periph2_sel and mmdc_ch1_axi_podf
2016-11-16 11:16:07 -08:00
Stephen Boyd
977f0ab058 Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: efm32gg: Pass correct type to hw provider registration
  clk: berlin: Pass correct type to hw provider registration
  clk: sunxi: Fix M factor computation for APB1
  clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent
2016-11-16 11:15:58 -08:00
Stephen Boyd
c8616671af Allwinner clock fixes for 4.9
Two fixes, one for the old clock code, one for the new implementation.
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Merge tag 'sunxi-clk-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes

Pull Allwinner clock fixes from Maxime Ripard:

Two fixes, one for the old clock code, one for the new implementation.

* tag 'sunxi-clk-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  clk: sunxi: Fix M factor computation for APB1
  clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent
2016-11-16 11:10:58 -08:00