This patch allows fine tuning of the quads FS for audio clocks
accuracy.
Signed-off-by: NOlivier Bideau <olivier.bideau@st.com>
Signed-off-by: NGabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: NPeter Griffin <peter.griffin@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Use an algorithm instead of a table to compute clocks for fs660c32
synthesizer.
During a video playback we need to adjust audio & video frequencies.
A table can't cover all HDMI resolutions and audio adjustment.
Signed-off-by: NGabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: NPeter Griffin <peter.griffin@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch reworks the clock binding to avoid too much detail in DT.
Now we have only compatible string per type of clock
(remark from Rob https://lkml.org/lkml/2016/5/25/492)
Signed-off-by: NGabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: NPeter Griffin <peter.griffin@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

STiH415 and STiH416 platforms are no longer used.
these platforms will be deprecated for the next kernel.
Signed-off-by: NGabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NPeter Griffin <peter.griffin@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Now that we have clk_hw based provider APIs to register clks, we
can get rid of struct clk pointers in this driver, allowing us to
move closer to a clear split of consumer and provider clk APIs.
Signed-off-by: NStephen Boyd <stephen.boyd@linaro.org>
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Now that we have clk_hw based provider APIs to register clks, we
can get rid of struct clk pointers while registering clks in
these drivers, allowing us to move closer to a clear split of
consumer and provider clk APIs.

Cc: Eric Anholt <eric@anholt.net>
Cc: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: NStephen Boyd <stephen.boyd@linaro.org>

Make the clocks visible options that can be selected by anyone.  This
avoids the problems of:
 1) Select is a reverse dependency and is hard for people to understand
    and can sometimes be a pain to track down
 2) Build coverage goes down because configs are hidden
 3) Code bloat

Patch suggested by Stephen Boyd
Signed-off-by: NJon Mason <jonmason@broadcom.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add X-Gene PMD clock support.

PMD clock is implemented for a single register field.
  Output rate = parent_rate * (denominator - scale) / denominator
with
  - denominator = bitmask of register field + 1
  - scale = values of register field

For example, for bitmask is 0x7, denominator will be 8 and scale
will be computed and programmed accordingly.
Signed-off-by: NHoan Tran <hotran@apm.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add APM X-Gene clock binding documentation for PMD clock.
Signed-off-by: NHoan Tran <hotran@apm.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

* clk-zte:
  clk: zx: register ZX296718 clocks
  clk: zx: reform pll config info to ease code extension

The ZX296718 clocks are statically listed and registered. More
clock will be added later.
Signed-off-by: NJun Nie <jun.nie@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add power down bit and pll lock bit in pll config structure
to ease new SoC support.
Signed-off-by: NJun Nie <jun.nie@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The ZX296718 clocks are statically listed and registered. More
clock will be added later.
Signed-off-by: NJun Nie <jun.nie@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add power down bit and pll lock bit in pll config structure
to ease new SoC support.
Signed-off-by: NJun Nie <jun.nie@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Reviewed-by: NAlex Elder <elder@linaro.org>
[sboyd@codeaurora.org: Save a line]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This helps to decode error messages like:

	[    0.000000] i.MX clk 82: register failed with -17
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NShawn Guo <shawnguo@kernel.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This fixes
	[    0.000000] i.MX clk 82: register failed with -17
because the name is duplicated.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 3713e3f5 ("clk: imx35: define two clocks for rtc")
Acked-by: NShawn Guo <shawnguo@kernel.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The addition of many gate clocks added two entries in an array for
the same value:

drivers/clk/meson/meson8b.c:479:10: error: initialized field overwritten [-Werror=override-init]
   [CLKID_GCLK_VENCI_INT]     = &meson8b_gclk_venci_int.hw,
   [CLKID_GCLK_VENCI_INT]     = &meson8b_gclk_vencp_int.hw,

This was clearly an accident, and since all other identifiers are
listed in the order in which they are defined, I'm changing the
first one to CLKID_GCLK_VENCI_INT0, making it all consistent again.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Fixes: e31a1900 ("meson: clk: Add support for clock gates")
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

We get 1 warning when building kernel with W=1:
drivers/clk/mmp/clk-mmp2.c:75:13: warning: no previous prototype for 'mmp2_clk_init' [-Wmissing-prototypes]

In fact, this function is declared in linux/clk/mmp.h,
so this patch add missing header dependencies.
Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Merge tag 'clk-renesas-for-v4.9-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull renesas clk driver updates from Geert Uytterhoeven:

  - External crystal selection for RZ/A1,
  - CMT clocks for R-Car H3 and M3-W,
  - RAVB and Thermal clocks for R-Car M3-W.

* tag 'clk-renesas-for-v4.9-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: r8a7796: Add CMT clocks
  clk: renesas: r8a7795: Add CMT clocks
  clk: renesas: r8a7796: Add RAVB clock
  clk: renesas: r8a7796: Add THS/TSC clock
  clk: renesas: rz: Select EXTAL vs USB clock

Use the builtin_platform_driver() macro to make the code simpler.
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Merge tag 'sunxi-clk-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next

Pull Allwinner clock driver changes from Maxime Ripard:

Four more SoCs converted to the new clock framework (A31, A31s, A23 and
A33).

* tag 'sunxi-clk-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  clk: sunxi-ng: Add hardware dependency
  clk: sunxi-ng: Add A23 CCU
  clk: sunxi-ng: Add A33 CCU support
  clk: sunxi-ng: Add N-class clocks support
  clk: sunxi-ng: mux: Add mux table macro
  clk: sunxi-ng: div: Allow to set a maximum
  clk: sunxi-ng: div: Add kerneldoc for the _ccu_div structure
  clk: sunxi-ng: div: Add mux table macros
  clk: sunxi-ng: Add A31/A31s clocks
  clk: sunxi-ng: mux: Add clk notifier functions
  clk: sunxi-ng: mux: support fixed pre-dividers on multiple parents
  clk: sunxi-ng: mux: Add support for mux tables
  clk: sunxi-ng: mux: Rename mux macro to be consistent
  clk: sunxi-ng: nkm: Add mux to support multiple parents
  clk: sunxi-ng: mux: Increase fixed pre-divider div size

Pull samsung clk driver updates from Sylwester Nawrocki:

In addition to a few clean up and code consolidation patches this
includes:
- addition of sound subsystem related clocks for Exynos5410 SoC
  (EPLL, PDMA) and support for "samsung,exynos5410-audss-clock"
  compatible in the clk-exynos-audss driver,
- addition of DRAM controller related clocks for exynos5420,
- MAINTAINERS update adding Chanwoo Choi as the Samsung SoC
  clock drivers co-maintainer.

* tag 'clk-v4.9-samsung' of git://linuxtv.org/snawrocki/samsung:
  clk: samsung: Add support for EPLL on exynos5410
  clk: samsung: clk-exynos-audss: Whitespace and debug trace cleanup
  clk: samsung: clk-exynos-audss: Add exynos5410 compatible
  clk: samsung: clk-exynos-audss: controller variant handling rework
  clk: samsung: Use common registration function for pll2550x
  clk: samsung: exynos5410: Expose the peripheral DMA gate clocks
  clk: samsung: exynos5420: Add clocks for CMU_CDREX domain
  clk: samsung: exynos5410: Use samsung_cmu_register_one() to simplify code
  clk: samsung: exynos5260: Move struct samsung_cmu_info to init section
  MAINTAINERS: Add myself as Samsung SoC clock drivers co-maintainer
  clk: samsung: exynos5410: Add clock IDs for PDMA and EPLL clocks
  clk: samsung: Add clock IDs for the CMU_CDREX (DRAM Express Controller)

This patch adds CMT module clocks for r8a7796 SoC.
Signed-off-by: NBui Duc Phuc <bd-phuc@jinso.co.jp>
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>

This patch adds CMT module clocks for r8a7795 SoC.
Signed-off-by: NBui Duc Phuc <bd-phuc@jinso.co.jp>
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>

The sunxi-ng clock driver is useless for other architectures.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Acked-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Add support for the clock unit found in the A23. Due to the similarities
with the A33, it also shares its clock IDs to allow sharing the DTSI.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>

This commit introduces the clocks found in the Allwinner A33 CCU.

Since this SoC is very similar to the A23, and we share a significant share
of the DTSI, the clock IDs that are going to be used will also be shared
with the A23, hence the name of the various header files.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>

Add support for the class with a single factor, N, being a multiplier.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>

Add a new macro to declare muxes based on a table and a gate.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>

Some dividers might have a maximum value that is lower than the width of
the register.

Add a field to _ccu_div to handle those case properly. If the field is set
to 0, the code will assume that the maximum value is the maximum one that
can be used with the field register width.

Otherwise, we'll use whatever value has been set.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>

The internal _ccu_div structure is meant to be embedded into other
structures to combine the various dividers and to form the clock classes
support.

Start to document those structures by using kerneldoc.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Add some macros to ease the declaration of clocks that are using them.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>

Right now we are passing a pointer to a pointer to the structure that
will be used to fetch the clk hw, which gets casted later to a pointer
to the structure, thus getting garbage in the hw structs.
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Fixes: a8b6e85d ("clk: rk808: Migrate to clk_hw based OF and
registration APIs")
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch adds code instantiating the EPLL, which is used as the
audio subsystem's root clock.
The requirement to specify the external root clock in clocks property
is documented.  Having the consumer 'clocks' property ensures proper
initialization order by explicitly specifying dependencies in DT.
It prevents situations when the SoC's clock controller driver has
initialized, the external oscillator clock is not yet registered
and setting clock frequencies through assigned-clock-rates property
doesn't work properly due to unknown external oscillator frequency.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>

There is no need to log probe() completion in normal conditions
so the "setup completed" log is removed.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Exynos5410 Audio Subsystem Clock Controller, comparing to the already
supported IP block revisions, has additionally an I2S_MST divider
so a new compatible string is added.
It is not clear from the Exynos5410 User's Manual released on 2012.03.09
where in the clock tree the I2S_MST clock divider can be found exactly
so this clock is left unimplemented for now.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Then variant handling is reworked to make the code simpler when
more variants are added.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

There is no such significant differences in pll2550x PLL type
to justify a separate registration function.  This patch adapts
exynos5440 driver to use the common function and removes
samsung_clk_register_pll2550x().
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>