This commit reworks factors clock registration to be done behind a
composite clock. This allows us to additionally add a gate, mux or
divisors, as it will be needed by some future PLLs.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Populate ${DEBUGS_MOUNT_POINT}/clk if CONFIG_DEBUG_FS is set. This
eliminates the extra (annoying) step of enabling the config option
manually.
Signed-off-by: Mike Turquette <mturquette@linaro.org>
'break' after 'goto' is redundant. Remove it.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Bringing in the tegra dma/reset framework cleanup as a base for the DT changes.
* tegra/dma-reset-rework: (320 commits)
spi: tegra: checking for ERR_PTR instead of NULL
ASoC: tegra: update module reset list for Tegra124
clk: tegra: remove bogus PCIE_XCLK
clk: tegra: remove legacy reset APIs
ARM: tegra: remove legacy DMA entries from DT
ARM: tegra: remove legacy clock entries from DT
USB: EHCI: tegra: use reset framework
Input: tegra-kbc - use reset framework
serial: tegra: convert to standard DMA DT bindings
serial: tegra: use reset framework
spi: tegra: convert to standard DMA DT bindings
spi: tegra: use reset framework
staging: nvec: use reset framework
i2c: tegra: use reset framework
ASoC: tegra: convert to standard DMA DT bindings
ASoC: tegra: allocate AHUB FIFO during probe() not startup()
ASoC: tegra: call pm_runtime APIs around register accesses
ASoC: tegra: use reset framework
dma: tegra: register as an OF DMA controller
dma: tegra: use reset framework
...
Signed-off-by: Olof Johansson <olof@lixom.net>
This series converts the Tegra DTs and drivers to use the common/
standard DMA and reset bindings, rather than custom bindings. It also
adds complete documentation for the Tegra clock bindings without
actually changing any binding definitions.
This conversion relies on a few sets of patches in branches from outside
the Tegra tree:
1) A patch to add an DMA channel request API which allows deferred probe
to be implemented.
2) A patch to implement a common part of the of_xlate function for DMA
controllers.
3) Some ASoC patches (which in turn rely on (1) above), which support
deferred probe during DMA channel allocation.
4) The Tegra clock driver changes for 3.14.
Consequently, this branch is based on a merge of all of those external
branches.
In turn, this branch is or will be pulled into a few places that either
rely on features introduced here, or would otherwise conflict with the
patches:
a) Tegra's own for-3.14/powergate and for-4.14/dt branches, to avoid
conflicts.
b) The DRM tree, which introduces new code that relies on the reset
controller framework introduced in this branch, and to avoid
conflicts.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=8T7+
-----END PGP SIGNATURE-----
Merge tag 'tegra-for-3.14-dmas-resets-rework' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/cleanup
From Stephen Warren:
ARM: tegra: implement common DMA and resets DT bindings
This series converts the Tegra DTs and drivers to use the common/
standard DMA and reset bindings, rather than custom bindings. It also
adds complete documentation for the Tegra clock bindings without
actually changing any binding definitions.
This conversion relies on a few sets of patches in branches from outside
the Tegra tree:
1) A patch to add an DMA channel request API which allows deferred probe
to be implemented.
2) A patch to implement a common part of the of_xlate function for DMA
controllers.
3) Some ASoC patches (which in turn rely on (1) above), which support
deferred probe during DMA channel allocation.
4) The Tegra clock driver changes for 3.14.
Consequently, this branch is based on a merge of all of those external
branches.
In turn, this branch is or will be pulled into a few places that either
rely on features introduced here, or would otherwise conflict with the
patches:
a) Tegra's own for-3.14/powergate and for-4.14/dt branches, to avoid
conflicts.
b) The DRM tree, which introduces new code that relies on the reset
controller framework introduced in this branch, and to avoid
conflicts.
* tag 'tegra-for-3.14-dmas-resets-rework' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (30 commits)
spi: tegra: checking for ERR_PTR instead of NULL
ASoC: tegra: update module reset list for Tegra124
clk: tegra: remove bogus PCIE_XCLK
clk: tegra: remove legacy reset APIs
ARM: tegra: remove legacy DMA entries from DT
ARM: tegra: remove legacy clock entries from DT
USB: EHCI: tegra: use reset framework
Input: tegra-kbc - use reset framework
serial: tegra: convert to standard DMA DT bindings
serial: tegra: use reset framework
spi: tegra: convert to standard DMA DT bindings
spi: tegra: use reset framework
staging: nvec: use reset framework
i2c: tegra: use reset framework
ASoC: tegra: convert to standard DMA DT bindings
ASoC: tegra: allocate AHUB FIFO during probe() not startup()
ASoC: tegra: call pm_runtime APIs around register accesses
ASoC: tegra: use reset framework
dma: tegra: register as an OF DMA controller
dma: tegra: use reset framework
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Merging in external dependencies for the Tegra DMA and reset controller
refactoring from external trees.
Per Stephen Warren, the stability of these branches have been negotiated
with the relevant parties (Vinod/Mark/Mike)
* depends/asoc-dma:
ASoC: dmaengine: fix deferred probe detection
ASoC: dmaengine: support deferred probe for DMA channels
dma: add channel request API that supports deferred probe
ASoC: dmaengine: add custom DMA config to snd_dmaengine_pcm_config
ASoC: don't leak on error in snd_dmaengine_pcm_register
ASoC: restructure dmaengine_pcm_request_chan_of()
ASoC: generic-dmaengine-pcm: Set BATCH flag when residue reporting is not supported
ASoC: Add resource managed snd_dmaengine_pcm_register()
* depends/dma-of:
dma: add dma_get_any_slave_channel(), for use in of_xlate()
* depends/tegra-clk: (42 commits)
clk: tegra: fix __clk_lookup() return value checks
clk: tegra: Do not print errors for clk_round_rate()
clk: tegra: Initialize DSI low-power clocks
clk: tegra: add FUSE clock device
clk: tegra: Properly setup PWM clock on Tegra30
clk: tegra: Initialize secondary gr3d clock on Tegra30
clk: tegra114: Initialize clocks needed for HDMI
clk: tegra124: add suspend/resume function for tegra_cpu_car_ops
clk: tegra124: add wait_for_reset and disable_clock for tegra_cpu_car_ops
clk: tegra124: Add support for Tegra124 clocks
clk: tegra124: Add new peripheral clocks
clk: tegra124: Add common clk IDs to clk-id.h
clk: tegra: add TEGRA_PERIPH_NO_GATE
clk: tegra: add locking to periph clks
clk: tegra: Add periph regs bank X
clk: tegra: Add support for PLLSS
clk: tegra: move tegra20 to common infra
clk: tegra: move tegra30 to common infra
clk: tegra: introduce common gen4 super clock
clk: tegra: move PMC, fixed clocks to common files
...
Signed-off-by: Olof Johansson <olof@lixom.net>
- add DMA controller, SPI, and TMU DT nodes for exynos5420
- add PWM DT nodes for exynos5250 and exynos5420
- drop interrupt controller properties from MCT nodes
because MCT is not an interrupt controller
- move MCT nodes to exynos4x12 from board because it is
a per-processor interrupt and same 4212 and 4412
- use one cell for MCT interrupt map for exynos4 SoCs
- update Exynos MCT DT bindings accordingly
- fix missing spaces after labels for exynos
- fix mmc status property for exynos5250-snow
- add MCLK for codec for exynos5250-smdk5250
- disable SPI and I2C by default for exynos5250 SoC
and enable into requiring some boards
- rename cros5250-common to exynos5250-cros-common
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=YqMd
-----END PGP SIGNATURE-----
Merge tag 'samsung-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt
From Kukjin Kim:
Samsung DT 2nd updates for v3.14
- add DMA controller, SPI, and TMU DT nodes for exynos5420
- add PWM DT nodes for exynos5250 and exynos5420
- drop interrupt controller properties from MCT nodes
because MCT is not an interrupt controller
- move MCT nodes to exynos4x12 from board because it is
a per-processor interrupt and same 4212 and 4412
- use one cell for MCT interrupt map for exynos4 SoCs
- update Exynos MCT DT bindings accordingly
- fix missing spaces after labels for exynos
- fix mmc status property for exynos5250-snow
- add MCLK for codec for exynos5250-smdk5250
- disable SPI and I2C by default for exynos5250 SoC
and enable into requiring some boards
- rename cros5250-common to exynos5250-cros-common
* tag 'samsung-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (27 commits)
ARM: dts: Rename Exynos5250 ChromeOS common file to have exynos prefix
ARM: dts: Disable I2C controllers by default on Exynos5250
ARM: dts: Leave Exynos5250 SPI controller disabled by default
ARM: dts: Add CODEC MCLK for SMDK5250
ARM: dts: Add device nodes for TMU blocks for exynos5420
ARM: dts: Fix status property of mmc nodes for snow board
ARM: dts: Fix missing spaces after labels for exynos
ARM: dts: Simplify MCT interrupt map for exynos4 SoCs
ARM: dts: Move MCT node to exynos4x12.dtsi
ARM: dts: Drop interrupt controller properties from MCT nodes for exynos4 SoCs
Documentation: devicetree: Update Exynos MCT bindings description
ARM: dts: add pwm DT nodes to Exynos5250 and Exynos5420
ARM: dts: Add SPI nodes to the exynos5420 device tree file
ARM: dts: Add DMA controller node info on Exynos5420
ARM: dts: Use MSHC controller for eMMC memory for exynos4412-trats2
ARM: dts: Fix definition of MSHC device tree nodes for exynos4x12
ARM: dts: add clock provider for mshc node for Exynos4412 SOC
clk: samsung: exynos4: Fix definition of div_mmc_pre4 divider
ARM: dts: Fix exynos5250-snow's search key to be L_META
ARM: dts: Add the missing "\" key in non-US keyboards for exynos5250-snow
...
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch adds support for accuracy retrieval on fixed clocks.
It also adds a new dt property called 'clock-accuracy' to define the clock
accuracy.
This can be usefull for oscillator (RC, crystal, ...) definitions which are
always given an accuracy characteristic.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The clock accuracy is expressed in ppb (parts per billion) and represents
the possible clock drift.
Say you have a clock (e.g. an oscillator) which provides a fixed clock of
20MHz with an accuracy of +- 20Hz. This accuracy expressed in ppb is
20Hz/20MHz = 1000 ppb (or 1 ppm).
Clock users may need the clock accuracy information in order to choose
the best clock (the one with the best accuracy) across several available
clocks.
This patch adds clk accuracy retrieval support for common clk framework by
means of a new function called clk_get_accuracy.
This function returns the given clock accuracy expressed in ppb.
In order to get the clock accuracy, this implementation adds one callback
called recalc_accuracy to the clk_ops structure.
This callback is given the parent clock accuracy (if the clock is not a
root clock) and should recalculate the given clock accuracy.
This callback is optional and may be implemented if the clock is not
a perfect clock (accuracy != 0 ppb).
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
'clk_si570_of_match' is always compiled in. Hence the
helper macro is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add support for using emev2 SMU clocks with DT
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=NhhY
-----END PGP SIGNATURE-----
Merge tag 'renesas-clock-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into clk-next-shmobile2
Renesas ARM based SoC Clock updates for v3.14
Add support for using emev2 SMU clocks with DT
The clock was missing CLK_SET_RATE_PARENT flag, which caused rate
setting failures due to inability of reconfiguration of second
divider behind it.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
In some use cases Zynq's FPGA clocks are used as static clock
generators for IP in the FPGA part of the SOC for which no Linux driver
exists and would control those clocks. To avoid automatic
gating of these clocks in such cases a new property - fclk-enable - is
added to the clock controller's DT description to accomodate such use
cases. It's value is a bitmask, where a set bit results in enabling
the corresponding FCLK through the clkc.
FPGA clocks are handled following the rules below:
If an FCLK is not enabled by bootloaders, that FCLK will be disabled in
Linux. Drivers can enable and control it through the CCF as usual.
If an FCLK is enabled by bootloaders AND the corresponding bit in the
'fclk-enable' DT property is set, that FCLK will be enabled by the clkc,
resulting in an off by one reference count for that clock. Ensuring it
will always be running.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Extra semicolon is redundant. Remove it.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
'vtwm_pll_ops' is local to this file. Make it static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
'of_cpu_clk_setup' is used only in this file. Make it static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
clk_sp810_timerclken_of_get is used only in this file. Make it static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
tegra_clk_periph_nodiv_ops is used only in this file. Make it static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Local variables used only in this file are made static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
clk_frac_ops is local to this file. Make it static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Fix pmc_clk_ids data type attribute (__initdata -> __initconst).
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fix building of s2mps11 regulator and clock drivers after renaming
regmap field in struct sec_pmic_dev in commit:
- "mfd/rtc: s5m: Fix register updating by adding regmap for RTC"
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Add a driver for SILabs 570, 571, 598, 599 programmable oscillators.
The devices generate low-jitter clock signals and are reprogrammable via
an I2C interface.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Device tree clock binding document for EMMA Mobile EV2 SMU,
And Common clock framework based implementation of it.
Following nodes are defined to describe clock tree.
- renesas,emev2-smu
- renesas,emev2-smu-clkdiv
- renesas,emev2-smu-gclk
These bindings are designed manually based on
19UH0037EJ1000_SMU : System Management Unit User's Manual
So far, reparent is not implemented, and is fixed to index #0.
Clock tree description is not included, and should be provided
by device-tree.
Signed-off-by: Takashi Yoshii <takasi-y@ops.dti.ne.jp>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
MSTP clocks are gate clocks controlled through a register that handles
up to 32 clocks. The register is often sparsely populated.
Those clocks are found on Renesas ARM SoCs.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
DIV6 clocks are divider gate clocks controlled through a single
register. The divider is expressed on 6 bits, hence the name, and can
take values from 1/1 to 1/64.
Those clocks are found on Renesas ARM SoCs.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The R-Car Gen2 SoCs (R8A7790 and R8A7791) have several clocks that are
too custom to be supported in a generic driver. Those clocks can be
divided in two categories:
- Fixed rate clocks with multiplier and divisor set according to boot
mode configuration
- Custom divider clocks with SoC-specific divider values
This driver supports both.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This AT91 specific Kconfig option removed the code that dealt with
programmable clocks. Each AT91 SoC embeds programmable clocks and
there is little gain to remove this code in case that such a clock
is not used.
If this option is not selected, it causes certain drivers to fail
to build. We simply remove this option instead of adding code just
to build a workaround.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
The "pcie_xclk" clock is not actually a clock at all, but rather a reset
domain. Now that the custom Tegra module reset API has been removed, we
can remove the definition of any "clocks" that existed solely to support
it.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Now that no code uses the custom Tegra module reset API, we can remove
its implementation.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
The Tegra CAR module implements both a clock and reset controller. So
far, the driver exposes the clock feature via the common clock API and
the reset feature using a custom API. This patch adds an implementation
of the common reset framework API (include/linux/reset*.h). The legacy
reset implementation will be removed once all drivers have been
converted.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
This patch fixes Keystone gate control clock driver initialization path:
1) clk_register_psc() returns error code and not a pure pointer, hence
its return value need to be checked using IS_ERR(clk) macro.
2) Mapped IO memory isn't unmapped in case of errors, hence fix it.
Cc: Mike Turquette <mturquette@linaro.org
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
DDR3A/B, ARM and PA PLL controllers have clkod register bits for
configuring postdiv values. So use it instead of using fixed
post dividers for these pll controllers. Assume that if fixed-postdiv
attribute is not present, use clkod register value for pistdiv.
Also update the Documentation of bindings to reflect the same.
Cc: Mike Turquette <mturquette@linaro.org
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Fixes cpll control and lock register offset values for Exynos5420 SoC.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
clk_unregister() is currently not implemented and it is required when
a clock provider module needs to be unloaded.
Normally the clock supplier module is prevented to be unloaded by
taking reference on the module in clk_get().
For cases when the clock supplier module deinitializes despite the
consumers of its clocks holding a reference on the module, e.g. when
the driver is unbound through "unbind" sysfs attribute, there are
empty clock ops added. These ops are assigned temporarily to struct
clk and used until all consumers release the clock, to avoid invoking
callbacks from the module which just got removed.
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch adds common __clk_get(), __clk_put() clkdev helpers that
replace their platform specific counterparts when the common clock
API is used.
The owner module pointer field is added to struct clk so a reference
to the clock supplier module can be taken by the clock consumers.
The owner module is assigned while the clock is being registered,
in functions _clk_register() and __clk_register().
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
There is currently a race condition in the device tree part of clk_get()
function, since the pointer returned from of_clk_get_by_name() may become
invalid before __clk_get() call. E.g. due to the clock provider driver
remove() callback being called in between of_clk_get_by_name() and
__clk_get().
Fix this by doing both the look up and __clk_get() operations with the
clock providers list mutex held. This ensures that the clock pointer
returned from __of_clk_get_from_provider() call and passed to __clk_get()
is valid, as long as the clock supplier module first removes its clock
provider instance and then does clk_unregister() on the corresponding
clocks.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add helper functions for the of_clk_providers list locking and
an unlocked variant of of_clk_get_from_provider().
These functions are intended to be used in the clkdev to avoid
race condition in the device tree based clock look up in clk_get().
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Enable common clock driver of Hi3620 SoC. clkgate-seperated driver is
used to support the clock gate that enable/disable/status registers
are seperated.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
This patch adds at91 smd (Soft Modem) clock implementation using common clk
framework.
Not used by any driver right now.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds new at91 usb clock implementation using common clk framework.
This clock is used to clock usb ports (ohci, ehci and udc).
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This adds new at91 utmi clock implementation using common clk framework.
This clock is a pll with a fixed factor (x40).
It is used as a source for usb clock.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds new at91 programmable clocks implementation using common clk
framework.
A programmable clock is a clock which can be exported on a given pin to clock
external devices.
Each programmable clock is given an id (from 0 to 8).
The number of available programmable clocks depends on the SoC you're using.
Programmable clock driver only implements the clock setting (clock rate and
parent setting). It must be chained to a system clock in order to
enable/disable the generated clock.
The PCKX pins used to output the clock signals must be assigned to the
appropriate peripheral (see atmel's datasheets).
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds new at91 peripheral clock implementation using common clk
framework.
Almost all peripherals provided by at91 SoCs need a clock to work properly.
This clock is enabled/disabled using PCER/PCDR resgisters.
Each peripheral is given an id (see atmel's datasheets) which is used to
define and reference peripheral clocks.
Some new SoCs (at91sam9x5 and sama5d3) provide a new register (PCR) where you
can configure the peripheral clock as a division of the master clock.
This will help reducing the peripherals power comsumption.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds new at91 system clock implementation using common clk
framework.
Some peripherals need to enable a "system" clock in order to work properly.
Each system clock is given an id based on the bit position in SCER/SCDR
registers.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds new at91 master clock implementation using common clk
framework.
The master clock layout describe the MCKR register layout.
There are 2 master clock layouts:
- at91rm9200
- at91sam9x5
Master clocks are given characteristics:
- min/max clock output rate
These characteristics are checked during rate change to avoid
over/underclocking.
These characteristics are described in atmel's SoC datasheet in
"Electrical Characteristics" paragraph.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds new at91 pll clock implementation using common clk framework.
The pll clock layout describe the PLLX register layout.
There are four pll clock layouts:
- at91rm9200
- at91sam9g20
- at91sam9g45
- sama5d3
PLL clocks are given characteristics:
- min/max clock source rate
- ranges of valid clock output rates
- values to set in out and icpll fields for each supported output range
These characteristics are checked during rate change to avoid
over/underclocking.
These characteristics are described in atmel's SoC datasheet in
"Electrical Characteristics" paragraph.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds new at91 main oscillator clock implementation using common
clk framework.
If rate is not provided during clock registration it is calculated using
the slow clock (main clk parent in this case) rate and MCFR register.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This patch adds at91 PMC (Power Management Controller) base support.
All at91 clocks managed by the PMC unit will use this framework.
This framework provides the following fonctionalities:
- define a new struct at91_pmc to hide PMC internals (lock, PMC memory
mapping, irq domain, ...)
- read/write helper functions (pmc_read/write) to access PMC registers
- lock/unlock helper functions (pmc_lock/unlock) to lock/unlock access to
pmc registers
- a new irq domain and its associated irq chip to request PMC specific
interrupts (useful for clk prepare callbacks)
The PMC unit is declared as a dt clk provider (CLK_OF_DECLARE), and every
clk using this framework will declare a table of of_at91_clk_init_cb_t
and add it to the pmc_clk_ids table.
When the pmc dt clock setup function is called (by of_clk_init function),
it triggers the registration of every supported child clk (those matching
the definitions in pmc_clk_ids).
This patch copies at91_pmc_base (memory mapping) and at91sam9_idle
(function) from arch/arm/mach-at91/clock.c (which is not compiled if
COMMON_CLK_AT91 is enabled).
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Those are mostly random fixes, except for one patch to the composite
clock that adds support for automatic reparenting.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=sWyX
-----END PGP SIGNATURE-----
Merge tag 'sunxi-clk-for-3.13' of https://github.com/mripard/linux into clk-next-sunxi-rebase
Allwinner sunXi SoCs clock changes
Those are mostly random fixes, except for one patch to the composite
clock that adds support for automatic reparenting.
Conflicts:
drivers/clk/sunxi/clk-sunxi.c
In case of error, the function __clk_lookup() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
clk_round_rate() can be used by drivers to determine whether or not a
frequency is supported by the clock. The current Tegra clock driver
outputs an error message and a stacktrace when the requested rate isn't
supported. That's fine for clk_set_rate(), but it's confusing when all
the driver does is query whether or not a frequency is supported.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The function socfpga_clk_init() can support clocks that do not have a divider
register, but a fixed-divider that can be read from DTS. Therefore, the "reg"
property is not a failing condition for socfpga_clk_init().
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[Maybe the third time will be the charm. -Alex]
If CONFIG_COMMON_CLK_DEBUG is defined, clk_debug_create_one() is
called to populate a debugfs directory with a few entries that are
common for all clock types.
If an error happens after creating the first one debugfs_remove() is
called on the clock's directory. The problem with this is that no
cleanup is done on the debugfs files already created in that
directory, so the directory never actually gets removed. This
problem is silently ignored.
Fix this by calling debugfs_remove_recursive() instead. Reset the
clk->dentry field to null afterward, to ensure it can't be mistaken
as a valid pointer.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The low-power DSI clocks are used during host-driven transactions on the
DSI bus. Documentation recommends that they be children of PLLP and run
at a frequency of at least 52 MHz.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The clock for the PWM controller is slightly different from other
peripheral clocks on Tegra30. The clock source mux field start at
bit position 28 rather than 30.
Signed-off-by: Thierry Reding <treding@nvidia.com>
There are two GPUs on Tegra30 and each of them uses a separate clock, so
the secondary clock needs to be initialized in order for the gr3d module
to work properly.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add disp1 and disp2 clocks to the clock initialization table. These
clocks are required for display and HDMI support.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Adding suspend/resume function for tegra_cpu_car_ops. We only save and
restore the setting of the clock of CoreSight. Other clocks still need
to be taken care by clock driver.
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Hook the functions for CPU hotplug support. After the CPU is hot
unplugged, the flow controller will handle to clock gate the CPU clock.
But still need to implement an empty function to avoid warning message.
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Tegra124 introduces a number of new peripheral clocks. This patch adds those
to the common peripheral clock code.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tegra124 introduces a number of a new clocks. Introduce the corresponding
the IDs for them.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tegra124 has a clock which consists of a mux and a fractional divider.
Add support for this.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra124 has periph clocks which share the hw register. Hence locking is
required.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra124 has an extra bank of peripheral clock registers. Add it to the
generic peripheral clock code.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Introduce a common function which performs super clock initialization for
Tegra114 and beyond.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Introduce new files for fixed and PMC clocks common between several Tegra
SoCs and move Tegra114 to this new infrastructure.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Introduce a new file for peripheral clocks common between several Tegra
SoCs and move Tegra114 to this new infrastructure. Also PLLP and the PLLP_OUT
clocks will be initialized here.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Move audio clocks and PLLA initialization to a common file so it can be used by
multiple Tegra SoCs. Also a new array tegra114_clks is introduced for Tegra114
which specifies which common clocks are available on Tegra114 and what their
DT IDs are.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Add a common infra for registering clkdev. This allows decoupling clk
registration from clkdev registration.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Many clocks are common between several Tegra SoCs. Define an enum to list
them so we can move them to separate files which can be shared between
SoCs. Each SoC specific file will provide an array with the common clocks
which are present on the SoC and their DT binding ID.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Move some fields related to the PLL HW description to the tegra_clk_pll_params.
This allows some PLL code to be moved to common files later.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Use pll_ref instead of pll_re_vco as the pll_e parent on Tegra114. Also
add a 12Mhz pll_ref table entry for pll_e for Tegra114. This prevents
the system from crashing at bootup because of an unsupported pll_re_vco
rate.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
VCO min clipping, dynamic ramp setup and IDDQ init can be done in the
respective PLL clk_register functions if the parent is already registered.
This is done for other some PLLs already.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This flag indicates the peripheral clock does not have a divider. It will
simplify the initialization tables and avoids some very similar code.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This patch makes periph_clk_enb_refcnt a global array, dynamically allocated
at boottime. It simplifies the macros somewhat and allows clocks common to
several Tegra SoCs to be defined in a separate files. Also the clks array
becomes global and dynamically allocated which allows the DT registration to
be moved to a generic funcion.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This patch determines the register bank for clock enable/disable and reset
based on the clock ID instead of hardcoding it in the tables describing the
clocks. This results in less data to be maintained in the tables, making the
code easier to understand. The full benefit of the change will be realized once
also other clocktypes will be table based.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
The PLL output frequency is multiplied during the P-divider computation,
so it needs to be divided by the P-divider again before returning.
This fixes an issue where clk_round_rate() would return the multiplied
frequency instead of the real one after the P-divider.
Signed-off-by: Thierry Reding <treding@nvidia.com>
These clocks were named gr2d and gr3d on Tegra20 and Tegra30, so use the
same names on Tegra114 for consistency.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
The power-on default parent for this clock is pll_m, which turns out to
be wrong. Previously, bootloader reparented this clock. We'll do it in
the kernel as well, so that there's one less thing that we depend on
bootloader to initialize.
Signed-off-by: Andrew Chew <achew@nvidia.com>
Signed-off-by: Mark Zhang <markz@nvidia.com>
Perform upwards rounding when calculating dividers for periph clks on Tegra30
and Tegra114.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
pll_m will be the parent of gr2d/gr3d if we don't do this.
And because pll_m runs at a high rate so gr2d/gr3d will be
unstable. So change the parent of them to pll_c2.
Signed-off-by: Mark Zhang <markz@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
In Tegra114, vde/gr_2d/gr_3d have 3 bits for clock source selection.
So change the clock init macro for these clocks from
"TEGRA_INIT_DATA_INT" to "TEGRA_INIT_DATA_INT8".
Besides, no one uses "TEGRA_INIT_DATA_INT" after this change, so
remove this macro.
Signed-off-by: Mark Zhang <markz@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Tegra114 sbc1-sbc6 have more possible parent clocks than Tegra30.
So correct the parents and mux width for them.
Signed-off-by: Mark Zhang <markz@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
As the clock IDs are now specified in a header file, we can use those
definitions instead of maintaining an internal enum.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This commit introduces a new group of clocks present in Armada 370/XP
SoCs (called "Core Divider" clocks) and add a provider for them.
The only clock supported for now is the NAND clock (ndclk), but the
infrastructure to add the rest is already set.
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Since the old DMA driver got removed, these aliases are no longer
necessary.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch adds clkdev aliases for clocks used by PL08x DMA driver.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This symbol is used only in this file. The patch fix the following
sparse warning:
warning: symbol 'of_cpu_clk_setup' was not declared. Should it be static?
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Pull trivial tree updates from Jiri Kosina:
"Usual earth-shaking, news-breaking, rocket science pile from
trivial.git"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
doc: usb: Fix typo in Documentation/usb/gadget_configs.txt
doc: add missing files to timers/00-INDEX
timekeeping: Fix some trivial typos in comments
mm: Fix some trivial typos in comments
irq: Fix some trivial typos in comments
NUMA: fix typos in Kconfig help text
mm: update 00-INDEX
doc: Documentation/DMA-attributes.txt fix typo
DRM: comment: `halve' -> `half'
Docs: Kconfig: `devlopers' -> `developers'
doc: typo on word accounting in kprobes.c in mutliple architectures
treewide: fix "usefull" typo
treewide: fix "distingush" typo
mm/Kconfig: Grammar s/an/a/
kexec: Typo s/the/then/
Documentation/kvm: Update cpuid documentation for steal time and pv eoi
treewide: Fix common typo in "identify"
__page_to_pfn: Fix typo in comment
Correct some typos for word frequency
clk: fixed-factor: Fix a trivial typo
...
usual for this cycle with lots of clean-up.
- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for deferred
probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQEcBAABAgAGBQJSgPQ4AAoJEMhvYp4jgsXif28H/1WkrXq5+lCFQZF8nbYdE2h0
R8PsfiJJmAl6/wFgQTsRel+ScMk2hiP08uTyqf2RLnB1v87gCF7MKVaLOdONfUDi
huXbcQGWCmZv0tbBIklxJe3+X3FIJch4gnyUvPudD1m8a0R0LxWXH/NhdTSFyB20
PNjhN/IzoN40X1PSAhfB5ndWnoxXBoehV/IVHVDU42vkPVbVTyGAw5qJzHW8CLyN
2oGTOalOO4ffQ7dIkBEQfj0mrgGcODToPdDvUQyyGZjYK2FY2sGrjyquir6SDcNa
Q4gwatHTu0ygXpyphjtQf5tc3ZCejJ/F0s3olOAS1ahKGfe01fehtwPRROQnCK8=
=GCbY
-----END PGP SIGNATURE-----
Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.
- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for
deferred probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates"
* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
powerpc: add missing explicit OF includes for ppc
dt/irq: add empty of_irq_count for !OF_IRQ
dt: disable self-tests for !OF_IRQ
of: irq: Fix interrupt-map entry matching
MIPS: Netlogic: replace early_init_devtree() call
of: Add Panasonic Corporation vendor prefix
of: Add Chunghwa Picture Tubes Ltd. vendor prefix
of: Add AU Optronics Corporation vendor prefix
of/irq: Fix potential buffer overflow
of/irq: Fix bug in interrupt parsing refactor.
of: set dma_mask to point to coherent_dma_mask
of: add vendor prefix for PHYTEC Messtechnik GmbH
DT: sort vendor-prefixes.txt
of: Add vendor prefix for Cadence
of: Add empty for_each_available_child_of_node() macro definition
arm/versatile: Fix versatile irq specifications.
of/irq: create interrupts-extended property
microblaze/pci: Drop PowerPC-ism from irq parsing
of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
of/irq: Use irq_of_parse_and_map()
...
bug fixes along with updates to existing clock drivers and the
additional of new clock drivers.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=wBeW
-----END PGP SIGNATURE-----
Merge tag 'clk-for-linus-3.13' of git://git.linaro.org/people/mturquette/linux
Pull clock framework changes from Mike Turquette:
"The clock changes for 3.13 are an even mix of framework improvements &
bug fixes along with updates to existing clock drivers and the
additional of new clock drivers"
* tag 'clk-for-linus-3.13' of git://git.linaro.org/people/mturquette/linux:
clk: new driver for efm32 SoC
clk: of: helper for determining number of parent clocks
clk/zynq: Fix possible memory leak
clk: keystone: Build Keystone clock drivers
clk: keystone: Add gate control clock driver
clk: keystone: add Keystone PLL clock driver
Documentation: Add documentation for APM X-Gene clock binding
clk: arm64: Add DTS clock entry for APM X-Gene Storm SoC
clk: Add APM X-Gene SoC clock driver
clk: wm831x: get rid of the implementation of remove function
clk: Correct lookup logic in clk_fetch_parent_index()
clk: Use kcalloc() to allocate arrays
clk: Add error handling to clk_fetch_parent_index()
Commit b5b4bb3f6a (of: only include prom.h on sparc) removed implicit
includes of of_*.h headers by powerpc's prom.h. Some components were
missed in initial clean-up patch, so add the necessary includes to fix
powerpc builds.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ide@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Most of this branch consists of updates, additions and general churn of
the device tree source files in the kernel (arch/arm/boot/dts). Besides
that, there are a few things to point out:
- Lots of platform conversion on OMAP2+, with removal of old board files
for various platforms.
- Final conversion of a bunch of ux500 (ST-Ericsson) platforms as well
- Some updates to pinctrl and other subsystems. Most of these are for
DT-enablement of the various platforms and acks have been collected.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=nH67
-----END PGP SIGNATURE-----
Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC DT updates from Olof Johansson:
"Most of this branch consists of updates, additions and general churn
of the device tree source files in the kernel (arch/arm/boot/dts).
Besides that, there are a few things to point out:
- Lots of platform conversion on OMAP2+, with removal of old board
files for various platforms.
- Final conversion of a bunch of ux500 (ST-Ericsson) platforms as
well
- Some updates to pinctrl and other subsystems. Most of these are
for DT-enablement of the various platforms and acks have been
collected"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (385 commits)
ARM: dts: bcm11351: Use GIC/IRQ defines for sdio interrupts
ARM: dts: bcm: Add missing UARTs for bcm11351 (bcm281xx)
ARM: dts: bcm281xx: Add card detect GPIO
ARM: dts: rename ARCH_BCM to ARCH_BCM_MOBILE (dt)
ARM: bcm281xx: Add device node for the GPIO controller
ARM: mvebu: Add Netgear ReadyNAS 104 board
ARM: tegra: fix Tegra114 IOMMU register address
ARM: kirkwood: add support for OpenBlocks A7 platform
ARM: dts: omap4-panda: add DPI pinmuxing
ARM: dts: AM33xx: Add RNG node
ARM: dts: AM33XX: Add hwspinlock node
ARM: dts: OMAP5: Add hwspinlock node
ARM: dts: OMAP4: Add hwspinlock node
ARM: dts: use 'status' property for PCIe nodes
ARM: dts: sirf: add missed address-cells and size-cells for prima2 I2C
ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodes
ARM: dts: sirf: add missed graphics2d iobg in atlas6 dts
ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dts
ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and atlas6 dts
ARM: mvebu: Add the core-divider clock to Armada 370/XP
...
New and updated SoC support. Among the things new for this release are:
- More support for the AM33xx platforms from TI
- Tegra 124 support, and some updates to older tegra families as well
- imx cleanups and updates across the board
- A rename of Broadcom's Mobile platforms which were introduced as ARCH_BCM,
and turned out to be too broad a name. New name is ARCH_BCM_MOBILE.
- A whole bunch of updates and fixes for integrator, making the platform code
more modern and switches over to DT-only booting.
- Support for two new Renesas shmobile chipsets. Next up for them is more work
on consolidation instead of introduction of new non-multiplatform SoCs, we're
all looking forward to that!
- Misc cleanups for older Samsung platforms, some Allwinner updates, etc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=WYJl
-----END PGP SIGNATURE-----
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Olof Johansson:
"New and updated SoC support. Among the things new for this release
are:
- More support for the AM33xx platforms from TI
- Tegra 124 support, and some updates to older tegra families as well
- imx cleanups and updates across the board
- A rename of Broadcom's Mobile platforms which were introduced as
ARCH_BCM, and turned out to be too broad a name. New name is
ARCH_BCM_MOBILE.
- A whole bunch of updates and fixes for integrator, making the
platform code more modern and switches over to DT-only booting.
- Support for two new Renesas shmobile chipsets. Next up for them is
more work on consolidation instead of introduction of new
non-multiplatform SoCs, we're all looking forward to that!
- Misc cleanups for older Samsung platforms, some Allwinner updates,
etc"
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (159 commits)
ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config
ARM: bcm_defconfig: Run "make savedefconfig"
ARM: bcm281xx: Add ARCH Timers to config
rename ARCH_BCM to ARCH_BCM_MOBILE (mach-bcm)
ARM: vexpress: Enable platform-specific options in defconfig
ARM: vexpress: Make defconfig work again
ARM: sunxi: remove .init_time hooks
ARM: imx: enable suspend for imx6sl
ARM: imx: ensure dsm_request signal is not asserted when setting LPM
ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()
ARM: imx6q: move low-power code out of clock driver
ARM: imx: drop extern with function prototypes in common.h
ARM: imx: reset core along with enable/disable operation
ARM: imx: do not return from imx_cpu_die() call
ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING
ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options
ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO
ARM: imx: replace imx6q_restart() with mxc_restart()
ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt
ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt
...
This branch contains code cleanups, moves and removals for 3.13.
Qualcomm msm targets had a bunch of code removal for legacy non-DT
platforms. Nomadik saw more device tree conversions and cleanup of old
code. Tegra has some code refactoring, etc.
One longish patch series from Sebastian Hasselbarth changes the init_time
hooks and tries to use a generic implementation for most platforms,
since they were all doing more or less the same things.
Finally the "shark" platform is removed in this release. It's been
abandoned for a while and nobody seems to care enough to keep it
around. If someone comes along and wants to resurrect it, the removal
can easily be reverted and code brought back.
Beyond this, mostly a bunch of removals of stale content across the
board, etc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=SHZQ
-----END PGP SIGNATURE-----
Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"This branch contains code cleanups, moves and removals for 3.13.
Qualcomm msm targets had a bunch of code removal for legacy non-DT
platforms. Nomadik saw more device tree conversions and cleanup of
old code. Tegra has some code refactoring, etc.
One longish patch series from Sebastian Hasselbarth changes the
init_time hooks and tries to use a generic implementation for most
platforms, since they were all doing more or less the same things.
Finally the "shark" platform is removed in this release. It's been
abandoned for a while and nobody seems to care enough to keep it
around. If someone comes along and wants to resurrect it, the removal
can easily be reverted and code brought back.
Beyond this, mostly a bunch of removals of stale content across the
board, etc"
* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (79 commits)
ARM: gemini: convert to GENERIC_CLOCKEVENTS
ARM: EXYNOS: remove CONFIG_MACH_EXYNOS[4, 5]_DT config options
ARM: OMAP3: control: add API for setting IVA bootmode
ARM: OMAP3: CM/control: move CM scratchpad save to CM driver
ARM: OMAP3: McBSP: do not access CM register directly
ARM: OMAP3: clock: add API to enable/disable autoidle for a single clock
ARM: OMAP2: CM/PM: remove direct register accesses outside CM code
MAINTAINERS: Add patterns for DTS files for AT91
ARM: at91: remove init_machine() as default is suitable
ARM: at91/dt: split sama5d3 peripheral definitions
ARM: at91/dt: split sam9x5 peripheral definitions
ARM: Remove temporary sched_clock.h header
ARM: clps711x: Use linux/sched_clock.h
MAINTAINERS: Add DTS files to patterns for Samsung platform
ARM: EXYNOS: remove unnecessary header inclusions from exynos4/5 dt machine file
ARM: tegra: fix ARCH_TEGRA_114_SOC select sort order
clk: nomadik: fix missing __init on nomadik_src_init
ARM: drop explicit selection of HAVE_CLK and CLKDEV_LOOKUP
ARM: S3C64XX: Kill CONFIG_PLAT_S3C64XX
ASoC: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support
...
Fix a possible memory leak in sun4i_osc_clk_setup().
Moved clock-frequency check to save superfluous allocation.
Signed-off-by: Victor N. Ramos Mello <victornrm@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Some important clocks may get disabled as a side effect of another clock
being disabled, because they have no consumers. This patch implements a
mechanism so those clocks can be claimed by the driver and therefore
remain enabled at all times.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Random bits may get into our factors if we don't clear n, k, m and p.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The previous code would generate one bit too long masks, and was
needlessly complicated. This patch replaces it by simpler code that can
generate the masks correctly.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit adds .determine_rate support to the composite clock. It will
use the .determine_rate callback from the rate component if available,
and fall back on the mux component otherwise. This allows composite
clocks to enjoy the benefits of automatic clock reparenting.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This patch adds support for the clocks provided by the Clock Management
Unit of Energy Micro's efm32 Giant Gecko SoCs including device tree
bindings.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Merging in dt clock cleanup as a pre-req with some of the later SoC branches.
There are a handful of conflicts here -- some of the already merged SoC
branches should have been based on the cleanup but weren't.
In particular, a remove/add of include on highbank and two remove/remove
conflicts on kirkwood were fixed up.
* cleanup/dt-clock: (28 commits)
ARM: vt8500: remove custom .init_time hook
ARM: vexpress: remove custom .init_time hook
ARM: tegra: remove custom .init_time hook
ARM: sunxi: remove custom .init_time hook
ARM: sti: remove custom .init_time hook
ARM: socfpga: remove custom .init_time hook
ARM: rockchip: remove custom .init_time hook
ARM: prima2: remove custom .init_time hook
ARM: nspire: remove custom .init_time hook
ARM: nomadik: remove custom .init_time hook
ARM: mxs: remove custom .init_time hook
ARM: kirkwood: remove custom .init_time hook
ARM: imx: remove custom .init_time hook
ARM: highbank: remove custom .init_time hook
ARM: exynos: remove custom .init_time hook
ARM: dove: remove custom .init_time hook
ARM: bcm2835: remove custom .init_time hook
ARM: bcm: provide common arch init for DT clocks
ARM: call of_clk_init from default time_init handler
ARM: vt8500: prepare for arch-wide .init_time callback
...
Signed-off-by: Olof Johansson <olof@lixom.net>
and adding SSP/SPI devices to the device tree.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=p/3j
-----END PGP SIGNATURE-----
Merge tag 'ux500-dt-for-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/dt
From Linus Walleij:
Five incremental device tree patches around the clock handling,
and adding SSP/SPI devices to the device tree.
* tag 'ux500-dt-for-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: register all SSP and SPI blocks
ARM: ux500: fix I2C4 clock bit
ARM: ux500: fix clock for GPIO blocks 6 and 7
clk: ux500: fix erroneous bit assignment
ARM: ux500: fix clock for GPIO block 8
Signed-off-by: Olof Johansson <olof@lixom.net>
Due to a typo or similar, the peripheral group 2 clock 11
gate was set to bit 1 instead of bit 11. We need to fix this
to be able to set the correct enable bit in the device tree:
when trying to correct the bit assignment in the device tree,
the system would hang.
Cc: Mike Turquette <mturquette@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The order of arguments in the call to vco_set() for the ICST clocks appears to
have been switched in error, which results in the VCO not being initialised
correctly. This in turn stops the integrated LCD on things like Integrator/CP
from working correctly.
This patch fixes the order and restores the expected functionality.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Cc: stable@vger.kernel.org
The zynq_clk_register_fclk function can leak memory (fclk_lock) when unable
to alloc memory for fclk_gate_lock
Signed-off-by: Felipe Pena <felipensp@gmail.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The SD/MMC clock is named "sdmmc_clk", and NOT "mmc_clk". Because of this,
the SD driver was getting the incorrect clock value. This prevented the
SD driver from initializing correctly.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Olof Johansson <olof@lixom.net>
Reviewed-by: Pavel Machek <pavel@denx.de>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Now build the keystone common clock drivers. The build is made
conditional based on COMMON_CLK_KEYSTONE
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add the driver for the clock gate control which uses PSC (Power Sleep
Controller) IP on Keystone 2 based SOCs. It is responsible for enabling and
disabling of the clocks for different IPs present in the SoC.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add the driver for the PLL IPs found on Keystone 2 devices. The PLL
IP typically has a multiplier, a divider and a post-divider. The PLL IPs like
ARMPLL, DDRPLL and PAPLL are controlled by the memory mapped register where
as the Main PLL is controlled by a PLL controller and memory map registers.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
nomadik_src_init references __initconst sections but lacks an __init
itself. Add __init to fix the section mismatch.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
clk: Add APM X-Gene SoC clock driver for reference, PLL, and device clocks.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Kumar Sankaran <ksankaran@apm.com>
Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This patch fixes the tclk frequency array for the Armada-370 SoC.
This bug has been introduced by commit 6b72333d
("clk: mvebu: add Armada 370 SoC-centric clock init").
A wrong tclk frequency affects the following drivers: mvsdio, mvneta,
i2c-mv64xxx and mvebu-devbus. This list may be incomplete.
About the mvneta Ethernet driver, note that the tclk frequency is used
to compute the Rx time coalescence. Then, this bug harms the coalescence
configuration and also degrades the networking performances with the
default values.
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Turquette <mturquette@deferred.io>
The remove function implemented for platform driver's remove callback
just return 0 as part of its implementation.
Remove this APIs and do not pass the valid .remove for platform driver.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This fixes a regression for the Nomadik on the main system
timers.
The Nomadik seemed a bit slow and its heartbeat wasn't looking
healthy. And it was not strange, because it has been connected
to the 32768 Hz clock at boot, while being told by the clock driver
that it was 2.4MHz. Actually connect the TIMCLK to 2.4MHz by
default as this is what we want for nice scheduling, clocksource
and clock event.
Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This function is supposed to iterate over all parents of given child
clock to find the index of given parent clock in its parent list,
using parent cache if possible and falling back to string compare
otherwise. However currently the logic falls back to string compare in
every iteration in which clock cache entry does not match given parent,
due to wrong check conditions.
This patch corrects the logic to continue the loop if parent cache entry
is present and does not match requested parent clock. In addition,
redundant checks for parent cache array presence are removed, because it
is always allocated in the beginning of the function.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Instead of calculating sizes of arrays manually, kcalloc() can be used
to allocate arrays of elements with defined size. This is just a cleanup
patch without any functional changes.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
There are at least two different error cases that can happen in
clk_fetch_parent_index() function:
- allocation failure,
- parent clock lookup failure,
however it returns only an u8, which is supposed to contain parent clock
index.
This patch modified the function to return full int instead allowing
positive clock indices and negative error codes to be returned. All
users of this function are adjusted as well to handle the return value
correctly.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
- Move all the clock definitions over to the device tree
- Remove all now-redundant AUXDATA and make the ux500 device
tree only
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=FQfo
-----END PGP SIGNATURE-----
Merge tag 'ux500-dt-for-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/dt
From Linus Walleij:
This is a huge device tree and ATAG removal series for ux500:
- Move all the clock definitions over to the device tree
- Remove all now-redundant AUXDATA and make the ux500 device
tree only
* tag 'ux500-dt-for-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (92 commits)
ARM: ux500: delete devices-common remnants
clk: ux500: Provide a look-up for the ARMSS clock
ARM: ux500: Enable CPUFreq on Snowball
ARM: ux500: Provide a Device Tree node for CPUFreq in the DBx500
ARM: ux500: Provide a clock lookup for the Hash driver
ARM: ux500: Provide a clock lookup for the Crypto driver
ARM: ux500: Fix trivial white-space error in the DBX500 DTSI file
ARM: ux500: Remove ATAG booting support for Snowball
ARM: ux500: Remove ATAG booting support for HREF
ARM: ux500: Remove ATAG booting support for U8520
ARM: ux500: Remove ATAG booting support for MOP500
ARM: ux500: Purge UIB framework when booting with ATAGs
ARM: ux500: Take out STUIB support when not booting with Device Tree
ARM: ux500: Remove BU21013 ROHM TS support when booting with only ATAGs
ARM: ux500: Don't register the STMPE/SKE when booting with ATAG support
ARM: ux500: Delete U8500 UIB support when booting with ATAGs
ARM: ux500: Don't register Synaptics RMI4 TS when booting with ATAGs
ARM: ux500: Purge DB8500 PRCMU registration when not booting with DT
ARM: ux500: Stop requesting the SoC device to play 'parent' role
ARM: ux500: Remove UART support when booting without Device Tree
...
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch converts clk-imx2[38] clocksource_of_init compatible init
associated with fsl,imx2[38]-clkctrl. With arch/arm calling
of_clk_init(NULL) from time_init(), we can now also remove custom
.init_time hooks.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. Highbank clock provider need a reference
to system registers, as a workaround current clk driver maps those
independent of arch code now.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. Also remove call to of_clk_init from
clk-bcm2835 with core fixed_clock match, as this has already been
registered now.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
Current vt8500 board init calls of_clk_init() from vtwm_clk_init. To allow
consolidation of DT driven .time_init, move of_clock_init() to a temporary
.time_init callback that will be removed when arch-wide callback is available.
With previous pmc_base parsing helper for vt8500 clock providers, we can also
safely remove the call to vtwm_clk_init() and get rid of some includes.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Mike Turquette <mturquette@linaro.org>
Currently, clock providers for vt8500 depend on machine_init providing
pmc_base address before calling of_clk_init. With upcoming arch-wide
.time_init calling of_clk_init, we should make clock providers independent
of mach code. This adds a pmc_base parsing helper to current clock provider
that gets called if there is no pmc_base set, yet.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Mike Turquette <mturquette@linaro.org>
Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts sunxi clock
providers to make use of it and get rid of the mach specific clk init
call. As sunxi has a bunch of independent clk provider nodes, we hook
current clock init to board compatible to make it called once.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts prima2 clock
provider to make use of it and get rid of the mach specific clk init
call.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Barry Song <baohua.song@csr.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts nomadik clock
provider to make use of it and get rid of the mach specific clk init
call. As clocks require system reset controller base address to be
initialized each clock driver checks src_base and calls new
nomadik_src_init if required.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
nomadik_clk_init currently also maps system reset controller base address
used by clocks and registers a reboot notifier. To allow further cleanup of
nomadik clk setup, this moves system reset controller setup from
nomadik_clk_init to its own function.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
The ARMSS clock is used by the newly DT enabled CPUFreq driver.
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch enables the TWD fixed factor clock to be specified from
Device Tree via phandles to the "smp-twd-clock" node.
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
