Commit Graph

647984 Commits

Author SHA1 Message Date
Stephen Boyd
1955595069 Exporting clock IDs for Exynos5433 SoC MIPI DSI DPHY,
Exynos PLL code updates and overall minor clean-ups.
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Merge tag 'clk-v4.11-samsung-2' of git://linuxtv.org/snawrocki/samsung into clk-next

Pull Samsung clk driver updates from Sylwester Nawrocki:

 - Exporting clock IDs for Exynos5433 SoC MIPI DSI DPHY
 - Exynos PLL code updates and overall minor clean-ups

* tag 'clk-v4.11-samsung-2' of git://linuxtv.org/snawrocki/samsung:
  clk: samsung: mark s3c...._clk_sleep_init() as __init
  clk: samsung: Add enable/disable support for PLL35XX clocks
  clk: samsung: exynos5433: Correct typos in SoC name
  clk: samsung: exynos5433: Add data for 250MHz and 278MHz PLL rates
  clk: samsung: exynos5433: Add IDs for PHYCLK_MIPIDPHY0_* clocks
2017-01-27 11:53:06 -08:00
Stephen Boyd
d646d812f3 clk: renesas: Updates for v4.11 (take two)
- Use CLK_IS_CRITICAL to handle critical clocks,
   - Add Reset Control Support for R-Car Gen2 and Gen3, and RZ/G1,
   - Add IIC-DVFS clocks for R-Car H3 and M3-W,
   - Minor cleanups.
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Merge tag 'clk-renesas-for-v4.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull Renesas clk driver updates from Geert Uytterhoeven:

  - Use CLK_IS_CRITICAL to handle critical clocks,
  - Add Reset Control Support for R-Car Gen2 and Gen3, and RZ/G1,
  - Add IIC-DVFS clocks for R-Car H3 and M3-W,
  - Minor cleanups.

* tag 'clk-renesas-for-v4.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: r8a7796: Add IIC-DVFS clock
  clk: renesas: r8a7795: Add IIC-DVFS clock
  clk: renesas: cpg-mssr: Add support for reset control
  clk: renesas: cpg-mssr: Rename cpg_mssr_priv.mstp_lock
  clk: renesas: cpg-mssr: Document suitability for RZ/G1
  dt-bindings: clock: renesas: cpg-mssr: Document reset control support
  clk: renesas: mstp: Reformat cpg_mstp_clock_register() for git diff
  clk: renesas: mstp: Make INTC-SYS a critical clock
  clk: renesas: cpg-mssr: Migrate to CLK_IS_CRITICAL
2017-01-27 11:51:37 -08:00
Chris Packham
e120c17a70 clk: mvebu: support for 98DX3236 SoC
The 98DX3236, 98DX3336, 98DX4521 and variants have a different TCLK from
the Armada XP (200MHz vs 250MHz). The CPU core clock is fixed at 800MHz.

The clock gating options are a subset of those on the Armada XP.

The core clock divider is different to the Armada XP also.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-27 10:48:03 -08:00
Martin Kaiser
02c952c8f9 clk: samsung: mark s3c...._clk_sleep_init() as __init
These functions are referencing s3c...._clk_regs[], which are marked as
__initdata. When compiling with CONFIG_DEBUG_SECTION_MISMATCH=y, this
produces warnings like

WARNING: vmlinux.o(.text+0x198350):
Section mismatch in reference from the function s3c2410_clk_sleep_init()
to the (unknown reference) .init.data:(unknown)

Mark the s3c...._clk_sleep_init() functions as __init in
order to fix this.

Fixes: ca2e90ac18 ("clk: samsung: add clock controller driver for s3c2412")
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-01-27 13:30:00 +01:00
Marek Szyprowski
96a8d7536f clk: samsung: Add enable/disable support for PLL35XX clocks
Some PLLs might be disabled by default after turning off and then on
a power domain which they belongs to.  To avoid configuring a disabled
PLL, add proper code for handling PLL enable/disable.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-01-27 13:29:59 +01:00
Marek Szyprowski
9341e39d41 clk: samsung: exynos5433: Correct typos in SoC name
This patch fixes simple typos in Exynos5433 clocks driver. The SoC name
was referred a few times as '5443' instead of '5433'.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-01-27 13:29:43 +01:00
Marek Szyprowski
698e0d1d22 clk: samsung: exynos5433: Add data for 250MHz and 278MHz PLL rates
Default clock configuration applied by the bootloader for TM2 and TM2e
boards includes 250MHz and 278MHz rate for DISP PLL clock. To ensure
such configuration for those boards with 'assigned-clock-*' properties,
parameters for those two additional rates are needed.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-01-27 11:34:00 +01:00
Marek Szyprowski
5ccb58968b clk: samsung: exynos5433: Add IDs for PHYCLK_MIPIDPHY0_* clocks
Add missing identifiers for phyclk_mipidphy0_bitclkdiv8_phy and
phyclk_mipidphy0_rxclkesc0_phy clocks. Access to those clocks is needed
to setup initial clock configuration for display subsystem in device tree
in order to avoid dependency on the configuration left by the bootloader.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-01-27 11:33:59 +01:00
Khiem Nguyen
d963654e10 clk: renesas: r8a7796: Add IIC-DVFS clock
This patch adds DVFS clock for R8A7796 SoC.

Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com>
Signed-off-by: Dien Pham <dien.pham.ry@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-01-27 08:59:24 +01:00
Keita Kobayashi
2c8e79898c clk: renesas: r8a7795: Add IIC-DVFS clock
This patch adds DVFS clock for R8A7795 SoC.

Signed-off-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Signed-off-by: Dien Pham <dien.pham.ry@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-01-27 08:59:00 +01:00
Geert Uytterhoeven
6197aa65c4 clk: renesas: cpg-mssr: Add support for reset control
Add optional support for the Reset Control feature of the Renesas Clock
Pulse Generator / Module Standby and Software Reset module on R-Car
Gen2, R-Car Gen3, and RZ/G1 SoCs.

This allows to reset SoC devices using the Reset Controller API.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2017-01-27 08:59:00 +01:00
Geert Uytterhoeven
a4ea6a0f83 clk: renesas: cpg-mssr: Rename cpg_mssr_priv.mstp_lock
The spinlock is used to protect Read-Modify-Write register accesses,
which won't be limited to SMSTPCR register accesses.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-27 08:58:59 +01:00
Geert Uytterhoeven
67c995b55e clk: renesas: cpg-mssr: Document suitability for RZ/G1
The Renesas CPG/MSSR driver is already in active use for RZ/G1 since
commits c0b2d75d2a ("clk: renesas: cpg-mssr: Add R8A7743 support")
and 9127d54bb8 ("clk: renesas: cpg-mssr: Add R8A7745 support").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-27 08:58:59 +01:00
Geert Uytterhoeven
98aabfff7d dt-bindings: clock: renesas: cpg-mssr: Document reset control support
Document properties needed to use the Reset Control feature of the
Renesas Clock Pulse Generator / Module Standby and Software Reset
module.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-01-27 08:58:58 +01:00
Geert Uytterhoeven
1ce87dd2f0 clk: renesas: mstp: Reformat cpg_mstp_clock_register() for git diff
As the function header of cpg_mstp_clock_register() is split in an
unusual way, "git diff" gets confused when changes to the body of
the function are made, and attributes them to the wrong function.

Reformat the function header to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-27 08:58:17 +01:00
Pierre-Louis Bossart
2e6f38cef8 platform/x86: fix typo in comment
s/Acumulate/Accumulate/

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:22:11 -08:00
Irina Tirdea
282a4e4ce5 platform/x86: Enable Atom PMC platform clocks
The BayTrail and CherryTrail platforms provide platform clocks
through their Power Management Controller (PMC).

The SoC supports up to 6 clocks (PMC_PLT_CLK[0..5]) with a
frequency of either 19.2 MHz (PLL) or 25 MHz (XTAL) for BayTrail
and a frequency of 19.2 MHz (XTAL) for CherryTrail. These clocks
are available for general system use, where appropriate. For example,
the usage for platform clocks suggested in the datasheet is the
following:
  PLT_CLK[0..2] - Camera
  PLT_CLK[3] - Audio Codec
  PLT_CLK[4] -
  PLT_CLK[5] - COMMs

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:21:59 -08:00
Irina Tirdea
80a7581f38 arch/x86/platform/atom: Move pmc_atom to drivers/platform/x86
The pmc_atom driver does not contain any architecture specific
code. It only enables the SoC Power Management Controller driver
for BayTrail and CherryTrail platforms.

Move the pmc_atom driver from arch/x86/platform/atom to
drivers/platform/x86. Also clean-up and reorder include files by
alphabetical order in pmc_atom.h

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:21:27 -08:00
Irina Tirdea
1141d9d081 clk: x86: Add Atom PMC platform clocks
The BayTrail and CherryTrail platforms provide platform clocks
through their Power Management Controller (PMC).

The SoC supports up to 6 clocks (PMC_PLT_CLK[0..5]) with a
frequency of either 19.2 MHz (PLL) or 25 MHz (XTAL) for BayTrail
and a frequency of 19.2 MHz (XTAL) for CherryTrail. These clocks
are available for general system use, where appropriate, and each
have Control & Frequency register fields associated with them.

Port from legacy by Pierre Bossart, integration in clock framework
by Irina Tirdea

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:20:46 -08:00
Pierre-Louis Bossart
f35b6542c3 clk: Make x86/ conditional on CONFIG_COMMON_CLK
Fix Makefile for x86 support, dependency on CONFIG_COMMON_CLK
was not explicit

Fixes: 701190fd74 ('clk: x86: add support for Lynxpoint LPSS clocks')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:20:07 -08:00
Leo Yan
55da97e38c clk: hisilicon: fix lock assignment
In clock driver initialize phase the spinlock is missed to assignment
to struct clkgate_separated, finally there have no locking to protect
exclusive accessing for clock registers.

This bug introduces the console has no output after enable coresight
driver on 96boards Hikey; this is because console using UART3, which
has shared the same register with coresight clock enabling bit. After
applied this patch it can assign lock properly to protect exclusive
accessing, and console can work well after enabled coresight modules.

Fixes: 0aa0c95f74 ("clk: hisilicon: add common clock support")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:18:34 -08:00
Stephen Boyd
de9b5a2404 Merge branch 'clk-ux500' into clk-next
* clk-ux500:
  clk: ux500: Convert ABx500 clocks to use OF probing
  clk: ux500: Add device tree bindings for ABx500 clocks
  clk: ux500: move AB8500 sysclk over to PRCMU clk driver
2017-01-26 16:10:57 -08:00
Linus Walleij
55921ce276 clk: ux500: Convert ABx500 clocks to use OF probing
These clocks have been broken for a long time unfortunately, a
hurdle of misc problems made them stop working at some point
breaking USB and audio on Ux500.

The platform as such and all "regular" clocks are migrated to
OF/device tree, so let's migrate also this driver.

With this patch and the corresponding DTS fixes, and a bunch
of probe deferral fixes, audio starts working again on Ux500.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:10:02 -08:00
Linus Walleij
839a72af88 clk: ux500: Add device tree bindings for ABx500 clocks
This adds device tree bindings for the ABx500 clocks on the
ST-Ericsson platforms.

Cc: devicetree@vger.kernel.org
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:10:01 -08:00
Linus Walleij
689a318c16 clk: ux500: move AB8500 sysclk over to PRCMU clk driver
The AB8500 sysclk is just another PRCMU-controlled clock, there
is no reason why it should be in the ABx500-controlled part of
the clock implementation. Doing this and the corresponding device
tree changes makes USB work on the Ux500 again.

Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:10:01 -08:00
Jean Delvare
3d21a4b646 clk: mediatek: Fix MT8135 dependencies
The MT8135 is a 32-bit SoC, so only propose it on ARM architecture,
not ARM64.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 234d511d8c ("clk: mediatek: Add hardware dependency")
Cc: Andreas Färber <afaerber@suse.de>
Acked-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:04:31 -08:00
Jean Delvare
6e9c0d5a33 clk: mediatek: Fix MT2701 dependencies
If I say "no" to "Clock driver for Mediatek MT2701", I don't want to
be asked individually about each sub-driver. No means no.

Additionally, this driver shouldn't be proposed at all on non-mediatek
builds, unless build-testing.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: e986211827 ("clk: mediatek: Add MT2701 clock support")
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: James Liao <jamesjj.liao@mediatek.com>
Cc: Shunli Wang <shunli.wang@mediatek.com>
Cc: Erin Lo <erin.lo@mediatek.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:04:15 -08:00
Keerthy
ced3068344 clk: ti: divider: Add the table parsing to get the best divider value
Currently the divider selection logic blindly divides the parent_rate
by the clk rate and gives the divider value for the divider clocks
which do not have the CLK_SET_RATE_PARENT flag set. Add the clk divider
table parsing to get the closest divider available in the table
provided via Device tree.

The code is pretty much taken from: drivers/clk/clk-divider.c.
and used here to fix up the best divider selection logic.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reported-by: Richard Woodruff <r-woodruff2@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:03:04 -08:00
Rajendra Nayak
843be1e7fb clk: qcom: gdsc: Fix handling of hw control enable/disable
Once a gdsc is brought in and out of HW control, there is a
power down and up cycle which can take upto 1us. Polling on
the gdsc status immediately after the hw control enable/disable
can mislead software/firmware to belive the gdsc is already either on
or off, while its yet to complete the power cycle.
To avoid this add a 1us delay post a enable/disable of HW control
mode.

Also after the HW control mode is disabled, poll on the status to
check gdsc status reflects its 'on' before force disabling it
in software.

Reported-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Tested-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Fixes: 904bb4f5c7 ("clk: qcom: gdsc: Add support for gdscs with HW control")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:00:38 -08:00
Jerome Brunet
340a84ce1e clk: meson8b: fix clk81 register address
During meson8b clock probe, clk81 register address is fixed twice.
First using the meson8b_clk_gates array, then by directly changing
meson8b_clk81 register.

As a result meson8b_clk81.reg = HHI_MPEG_CLK_CNTL + clk_base + clk_base.

Fixed by just removing the second fixup.

Fixes: e31a1900c1 ("meson: clk: Add support for clock gates")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 15:54:48 -08:00
Gabriel Fernandez
88c9b70bb2 clk: stm32f7: Introduce stm32f7 clocks for STM32F746 boards
This patch enables clocks for STM32F746 boards.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 15:53:03 -08:00
Stephen Boyd
0875dd5938 Merge branch 'clk-stm32f4' into clk-next
* clk-stm32f4:
  clk: stm32f7: Add stm32f7 clock DT bindings for STM32F746 boards
2017-01-26 15:52:55 -08:00
Masahiro Yamada
f080a49386 clk: uniphier: continue probing even if some clocks fail to register
Do not let the entire probe function fail even if some clocks fail
to register.  Let's continue with succeeded clocks.  This will give
the system more chances to boot and allow us to investigate the
cause of the failure.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 15:52:54 -08:00
Stephen Boyd
645ebb1daa Merge branch 'clk-imx7', 'clk-bcm2835' into clk-next
* clk-imx7:
  clk: imx7d: Add the OCOTP clock

* clk-bcm2835:
  clk: bcm2835: Add leaf clock measurement support, disabled by default
  clk: bcm2835: Register the DSI0/DSI1 pixel clocks.
  clk: bcm2835: Don't rate change PLLs on behalf of DSI PLL dividers.
2017-01-26 15:52:37 -08:00
Geert Uytterhoeven
e34084fb9a clk: renesas: mstp: Make INTC-SYS a critical clock
INTC-SYS is the module clock for the GIC.  Accessing the GIC while it is
disabled causes:

    Unhandled fault: asynchronous external abort (0x1211) at 0x00000000

Currently, the GIC-400 driver cannot enable its module clock for several
reasons:
  - It does not use a platform device, so Runtime PM is not an option,
  - gic_of_init() runs before any clocks are registered, so it cannot
    enable the clock explicitly,
  - gic_of_init() cannot return -EPROBE_DEFER, as IRQCHIP_DECLARE()
    doesn't support deferred probing.

Hence we have to keep on relying on the boot loader for enabling the
module clock.

To prevent the module clock from being disabled when the CCF core thinks
it is unused, and thus causing a system lock-up, add a check to the MSTP
clock driver and enable CLK_IS_CRITICAL. This will make sure the module
clock is never disabled.

This is a hard dependency for describing the INTC-SYS clock in DT on
R-Mobile APE6 and R-Car Gen2.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-23 11:04:46 +01:00
Geert Uytterhoeven
72f5df2c2b clk: renesas: cpg-mssr: Migrate to CLK_IS_CRITICAL
When the Renesas CPG/MSSR driver was introduced, it was anticipated that
critical clocks would be handled through a new CLK_ENABLE_HAND_OFF flag
soon.  However, CLK_ENABLE_HAND_OFF never made it upstream.

Instead, commit 32b9b10961 ("clk: Allow clocks to be marked as
CRITICAL") introduced CLK_IS_CRITICAL, a flag with slightly differing
semantics.  Still, it can be used to prevent e.g. the GIC module clock
from being turned off, until the GIC-400 driver has full support for
Runtime PM.

Hence migrate the Renesas CPG/MSSR driver from CLK_ENABLE_HAND_OFF to
CLK_IS_CRITICAL.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-23 11:04:45 +01:00
Gabriel Fernandez
52af8557bb clk: stm32f7: Add stm32f7 clock DT bindings for STM32F746 boards
This patch introduces the stm32f7 clock DT bindings.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:37:43 -08:00
Fabio Estevam
6847c4c296 clk: imx7d: Add the OCOTP clock
Add the OCOTP so that this hardware block can be used.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:27:19 -08:00
Eric Anholt
3f9195811d clk: bcm2835: Add leaf clock measurement support, disabled by default
This proved incredibly useful during debugging of the DSI driver, to
see if our clocks were running at rate we requested.  Let's leave it
here for the next person interacting with clocks on the platform (and
so that hopefully we can just hook it up to debugfs some day).

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:22:56 -08:00
Eric Anholt
8a39e9fa57 clk: bcm2835: Register the DSI0/DSI1 pixel clocks.
The DSI pixel clocks are muxed from clocks generated in the analog phy
by the DSI driver.  In order to set them as parents, we need to do the
same name lookup dance on them as we do for our root oscillator.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:22:55 -08:00
Eric Anholt
55486091bd clk: bcm2835: Don't rate change PLLs on behalf of DSI PLL dividers.
Our core PLLs are intended to be configured once and left alone.  With
the SET_RATE_PARENT, asking to set the PLLD_DSI1 clock rate would
change PLLD just to get closer to the requested DSI clock, thus
changing PLLD_PER, the UART and ethernet PHY clock rates downstream of
it, and breaking ethernet.

We *do* want PLLH to change so that PLLH_AUX can be exactly the value
we want, though.  Thus, we need to have a per-divider policy of
whether to pass rate changes up.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:22:54 -08:00
Khiem Nguyen
c567fb37f1 clk: cs2000: add Suspend/Resume feature
CS2000 needs re-setup when redume, otherwise, it can't
handle correct clock rate.

Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@rvc.renesas.com>
[Kuninori: cleanup original patch]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:17:39 -08:00
Marek Vasut
3e1aec4e2c clk: vc5: Add support for IDT VersaClock 5P49V5923 and 5P49V5933
Add driver for IDT VersaClock 5 5P49V5923 and 5P49V5933 chips. These
chips have two clock inputs, XTAL or CLK, which are muxed into single
PLL/VCO input. In case of 5P49V5923, the XTAL in built into the chip
while the 5P49V5923 requires external XTAL.

The PLL feeds two fractional dividers. Each fractional divider feeds
output mux, which allows selecting between clock from the fractional
divider itself or from output mux on output N-1. In case of output
mux 0, the output N-1 is instead connected to the output from the mux
feeding the PLL.

The driver thus far supports only the 5P49V5923 and 5P49V5933, while
it should be easily extensible to the whole 5P49V59xx family of chips
as they are all pretty similar.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:17:34 -08:00
Marek Vasut
9044d87377 clk: vc5: Add bindings for IDT VersaClock 5P49V5923 and 5P49V5933
Add bindings for IDT VersaClock 5 5P49V5923 and 5P49V5933 chips.
These are I2C clock generators with optional clock source from
either XTal or dedicated clock generator and, depending on the
model, two or more clock outputs.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: devicetree@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:09:22 -08:00
Stephen Boyd
060982670b A new clock-type for the 1-2 muxes per soc that are for whatever reason
controlled through the General Register Files, support for the rk3328
 clock-controller (including a new pll-type) and the usual clock ids and
 some fixes.
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Merge tag 'v4.11-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull Rockchip clk updates from Heiko Stuebner:

A new clock-type for the 1-2 muxes per soc that are for whatever reason
controlled through the General Register Files, support for the rk3328
clock-controller (including a new pll-type) and the usual clock ids and
some fixes.

* tag 'v4.11-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  dt-bindings: clk: add rockchip,grf property for RK3399
  clk: rockchip: use clock ids for memory controller parts on rk3066/rk3188
  clk: rockchip: use rk3288 isp_in clock ids
  clk: rockchip: add clock ids for memory controller parts on rk3066/rk3188
  clk: rockchip: add rk3288 isp_in clock ids
  clk: rockchip: Remove useless init of "grf" to -EPROBE_DEFER
  clk: rockchip: add clock controller for rk3328
  dt-bindings: add bindings for rk3328 clock controller
  clk: rockchip: add dt-binding header for rk3328
  clk: rockchip: add new pll-type for rk3328
  clk: rockchip: describe aclk_vcodec using the new muxgrf type on rk3288
  clk: rockchip: add a clock-type for muxes based in the grf
2017-01-20 15:51:55 -08:00
Stephen Boyd
d07ed23f4c clk/samsung updates for v4.11:
- addition of the CPU clock configuration data for Exynos4412
    Prime SoC variant,
  - removal of driver for deprecated Exynos4415 SoC,
  - switching from the syscore to regular system sleep PM ops
    in the audio subsystem clocks controller driver,
  - updates of the definitions of some "Network On Chip" related
    clocks.
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Merge tag 'clk-v4.11-samsung' of git://linuxtv.org/snawrocki/samsung into clk-next

Pull Samsung clk updates from Sylwester Nawrocki:

 - addition of the CPU clock configuration data for Exynos4412
   Prime SoC variant,
 - removal of driver for deprecated Exynos4415 SoC,
 - switching from the syscore to regular system sleep PM ops
   in the audio subsystem clocks controller driver,
 - updates of the definitions of some "Network On Chip" related
   clocks.

* tag 'clk-v4.11-samsung' of git://linuxtv.org/snawrocki/samsung:
  clk: samsung: Remove Exynos4415 driver (SoC not supported anymore)
  clk: samsung: exynos-audss: Replace syscore PM with platform device PM
  clk: samsung: exynos5433: Set NoC (Network On Chip) clocks as critical
  clk: samsung: Add CPU clk configuration data for Exynos4412 Prime
2017-01-20 15:49:47 -08:00
Lucas Stach
f4a0a6c309 clk: imx6: don't restrict LDB mux changes on QuadPlus
The LDB mux/gate layout has been fixed on QuadPlus, so there is no need
to restrict the LDB mux changes on this hardware, as the erratum
preventing this from working properly is gone.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 15:22:37 -08:00
Stephen Boyd
3a1ba8ba67 clk: renesas: Updates for v4.11
- Add CAN and MSIOF related clocks for R-Car M3-W.
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Merge tag 'clk-renesas-for-v4.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull renesas clk updates from Geert Uytterhoeven:

  - Add CAN and MSIOF related clocks for R-Car M3-W.

* tag 'clk-renesas-for-v4.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: r8a7796: Add MSIOF controller clocks
  clk: renesas: r8a7796: Add CAN FD peripheral clock
  clk: renesas: r8a7796: Add CANFD clock
  clk: renesas: r8a7796: Add CAN peripheral clock
2017-01-20 15:17:50 -08:00
Krzysztof Kozlowski
cb4ac949ea clk: samsung: Remove Exynos4415 driver (SoC not supported anymore)
Support for Exynos4415 is going away because there are no internal nor
external users.

Since commit 46dcf0ff0d ("ARM: dts: exynos: Remove exynos4415.dtsi"),
the platform cannot be instantiated so remove also the drivers.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Kukjin Kim <kgene@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-01-16 11:33:38 +01:00
Xing Zheng
1a0abcd634 dt-bindings: clk: add rockchip,grf property for RK3399
Add support for rockchip,grf property which is used for GRF muxes
on RK3399.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-01-13 20:02:27 +01:00