This patch adds 'CLK_IGNORE_UNUSED' flag to clocks which is required for
operation of secure monitor call (smc). System will hang when it executes 'smc'
with one of those clock is gated. All related clocks must be enabled.
Signed-off-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

This patch adds the CLK_SET_RATE_PARENT flag for 'aclk_g3d' clock and parent
clocks becuase 'aclk_g3d' is used to change GPU frequency for DVFS (Dynamic
Voltage Frequency Scaling) feature and adds CLK_IGNORE_UNUSED flags to
'aclk_asyncapbs_g3d'/'aclk_asyncapbm_g3d' clocks to access the SFR
of the MALI device.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
[cw00.choi: Add patch description and add CLK_SET_RATE_PARENT to 'aclk_g3d' clk]
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

This DIV_CPIF register must be stored when the system is suspended, and must
be restored on system resume. This patch adds the register to the list of
restored registers.
Signed-off-by: NHyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

This patch adds CLK_SET_RATE_PARENT flag to support DVFS of Cortex-{A53|A57}
core (big.LITTLE core) because 'sclk_{apollo|atlas}' leaf clock is used to
change the CPU frequency of Cortex-{A53|A57} core in arm_big_little.c driver.
- 'apollo' word means the LITTLE core (Cortex-A53 core) in Exynos5433 TRM.
- 'atlas' word means the big core (Cortex-A57 core) in Exynos5433 TRM.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Use of_clk_parent_fill to fill in the parent clock's array.
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Sprinkled all through the platform clock drivers are code like this to
fill the clock parent array:

for (i = 0; i < num_parents; ++i)
	parent_names[i] = of_clk_get_parent_name(np, i);

The of_clk_parent_fill() will do the same as the code above, and while
at it, return the number of parents as well since the logic of the
function is to the walk the clock node to look for the parent.
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>
[sboyd@codeaurora.org: Fixed kernel-doc]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

* clk-meson8b:
  clk: meson8b: Add support for Meson8b clocks
  clk: meson: Document bindings for Meson8b clock controller
  clk: meson: Add support for Meson clock controller

This patch adds support for the basic clocks found on the Amlogic
Meson8b SoCs.
Signed-off-by: NCarlo Caione <carlo@endlessm.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add documentation for  the clock controller.
Signed-off-by: NCarlo Caione <carlo@endlessm.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patchset adds the infrastructure for registering and managing the
core clocks found on Amlogic MesonX SoCs. In particular:

- PLLs
- CPU clock
- Fixed rate clocks, fixed factor clocks, ...
Signed-off-by: NCarlo Caione <carlo@endlessm.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Since commit 2893c379 ("clk: make strings in parent name arrays
const") the name of parent clocks can be const. So add more const in
several clock drivers.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The size of clk_data should be the same as CLK_APMIXED_NR_CLK
instead of ARRAY_SIZE(plls). CLK_APMIXED_* is numbered from 1, so
CLK_APMIXED_NR_CLK will be greater than ARRAY_SIZE(plls).
Signed-off-by: NJames Liao <jamesjj.liao@mediatek.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

When setting the PLL rates, check that:

 - VCO is within range
 - PFD is within range
 - PLL is disabled when postdiv is changed
 - postdiv2 <= postdiv1
Reviewed-by: NAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: NKevin Cernekee <cernekee@chromium.org>
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Currently, when the rate is changed, the driver makes sure the
PLL is enabled before doing so. This is done because the PLL
cannot be locked while disabled. Once locked, the drivers
returns the PLL to its previous enable/disable state.

This is a bit cumbersome, and can be simplified.

This commit reworks the .set_rate() functions for the integer
and fractional PLLs. Upon rate change, the PLL is now locked
only if it's already enabled.

Also, the driver locks the PLL on .enable(). This makes sure
the PLL is locked when enabled, and not locked when disabled.
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This commit adds a pll_lock() helper making the code more readable.
Cosmetic change only, no functionality changes.
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Timer has external fast clock, and it is a mux clock.
Add the timer clock type for timer driver.
Signed-off-by: NChao Xie <chao.xie@marvell.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The suggested value in the mmp2 manual is wrong.
There are only 13 bits for numerator, but some suggested
value has 14 bits.
Fix the factor tabled and remove the unused items.
Signed-off-by: NChao Xie <chao.xie@marvell.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

USB will drive clock from USB_PLL.
Signed-off-by: NChao Xie <chao.xie@marvell.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Conflicts:
	drivers/clk/Kconfig

This driver supports the TI CDCE925 programmable clock synthesizer.
The chip contains two PLLs with spread-spectrum clocking support and
five output dividers. The driver only supports the following setup,
and uses a fixed setting for the output muxes:
  Y1 is derived from the input clock
  Y2 and Y3 derive from PLL1
  Y4 and Y5 derive from PLL2
Given a target output frequency, the driver will set the PLL and
divider to best approximate the desired output.
Signed-off-by: NMike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Even if not documented in the datasheet, the Armada 370 SoC can actually
gate the CESA (crypto engine) clock.
Add an entry in the gating_desc table to be able to reference the CESA
gateclk in the crypto node.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: NGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Add clock drivers for hi6220 SoC, this driver controls the SoC
registers to supply different clocks to different IPs in the SoC.

We add one divider clock for hi6220 because the divider in hi6220
also has a mask bit but it doesnot obey the rule defined by flag
"CLK_DIVIDER_HIWORD_MASK", we can not get index of the mask bit by
left shift fixed bits (e.g. 16 bits), so we add this divider clock
to handle it.
Signed-off-by: NJorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: NBintian Wang <bintian.wang@huawei.com>
Acked-by: NHaojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: NZhangfei Gao <zhangfei.gao@linaro.org>
Tested-by: NWill Deacon <will.deacon@arm.com>
Tested-by: NTyler Baker <tyler.baker@linaro.org>
Tested-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Add the header file "hi6220-clock.h" used by both
hi6220 clock driver and hi6220 device tree file.
Suggested-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NBintian Wang <bintian.wang@huawei.com>
Tested-by: NWill Deacon <will.deacon@arm.com>
Tested-by: NTyler Baker <tyler.baker@linaro.org>
Tested-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

__init markings on function prototypes are useless, so remove
them.
Suggested-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NBintian Wang <bintian.wang@huawei.com>
Tested-by: NWill Deacon <will.deacon@arm.com>
Tested-by: NTyler Baker <tyler.baker@linaro.org>
Tested-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

The clocks on the Arria 10 platform is a bit different than the
Cyclone/Arria 5 platform that it should just have it's own
driver.
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

There are 5 possible parent clocks for the SoCFPGA Arria10. Move the define
SYSMGR_SDMMC_CTRL_SET and streq() to clk.h so that the Arria clock driver
can use.
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Signed-off-by: NShailendra Verma <shailendra.capricorn@gmail.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Signed-off-by: NShailendra Verma <shailendra.capricorn@gmail.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Remove a previously registered clock provider when unload the module.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Signed-off-by: NShailendra Verma <shailendra.capricorn@gmail.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch adds the fixed clocks of external crystal oscillators.
Signed-off-by: NGuo Zeng <Guo.Zeng@csr.com>
Signed-off-by: NBarry Song <Baohua.Song@csr.com>
[sboyd@codeaurora.org: Remove size-cells/address-cells]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

the hardware node includes both clock and reset support, so it
is named as "car".
this patch implements Flexible clocks(mux, divider, gate), Selectable
clock(mux, divider, gate), root clock(gate),leaf clock(gate), others.
it also implements the reset controller functionality.
Signed-off-by: NZhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: NGuo Zeng <Guo.Zeng@csr.com>
Signed-off-by: NBarry Song <Baohua.Song@csr.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The variable init (struct clk_init_data) is allocated on the stack.
We weren't initializing the .flags field, so it contains random junk,
which can cause all kinds of interesting issues when the flags are
parsed by clk_register.
Signed-off-by: NRicky Liang <jcliang@chromium.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add initial clock support for Marvell PXA1928. The PXA1928 is a mobile
SOC and is similar to other MMP/PXA series of SOCs, so a lot of the
existing infrastructure is reused here.

Currently the PLLs are just fixed clocks, and not all leaf clocks are
implemented.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This adds the clock binding documentation for the Marvell PXA1928 SOC.
The PXA1928 has 3 clock control blocks for different subsystems of the
chip.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch shows the correct information for debugging when fail
to set clock rate because original error message shows the error
value instead of current clock rate.

Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Having this Kconfig sourced outside the clk menu means the option
is under the "Device Drivers" menu instead of the "Common Clock
Framework" menu. Move it so that the bcm clock config options are
in the right place.

Cc: Alex Elder <elder@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>