Printing an error on kmalloc() failures is unnecessary. Remove
the print and use *ptr in sizeof() for future-proof code.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

of_clk_get_from_provider() returns ERR_PTR on failure. The
dra7-atl-clock driver was not checking its return value and
immediately used it in __clk_get_hw().  __clk_get_hw()
dereferences supplied clock, if it is not NULL, so in that case
it would dereference an ERR_PTR.

Fixes: 9ac33b0c ("CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)")
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Fix the following compiler warning:

drivers/clk/clk-axm5516.c: In function 'axmclk_probe':
drivers/clk/clk-axm5516.c:559:2: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'size_t' [-Wformat=]
  pr_info("axmclk: supporting %u clocks\n", num_clks);
    ^
Signed-off-by: NAlexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

of_io_request_and map returns an error pointer, but the current code assumes
that on error the returned pointer will be NULL.

Obviously, that makes the check completely useless. Change the test to actually
check for the proper error code.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

MS6 and MS7 do not have the MSx_P3 field. Do the 'params.p3 == 0'
check for MS0-M5 only. See [AN619, p. 6] for details.

Referenced document:
[AN619] Manually Generating an Si5351 Register Map, Rev. 0.4
Signed-off-by: NSergej Sawazki <ce3a@gmx.de>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

The divider calculation for multisynth 6 and 7 differs from the
calculation for multisynth 0-5.

For MS6 and MS7, set MSx_P1 directly, MSx_P1=divide value
[AN619, p. 6].

Referenced document:
[AN619] Manually Generating an Si5351 Register Map, Rev. 0.4
Signed-off-by: NSergej Sawazki <ce3a@gmx.de>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

When registering clk-si5351 by platform_data, we should not pass struct clk
for the reference clocks. Drop struct clk from platform_data and rework the
driver to use devm_clk_get of named clock references.

While at it, check for at least one valid input clock and properly prepare/
enable valid reference clocks.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reported-by: NMichael Welling <mwelling@ieee.org>
Reported-by: NJean-Francois Moine <moinejf@free.fr>
Reported-by: NRussell King <rmk+linux@arm.linux.org.uk>
Tested-by: NMichael Welling <mwelling@ieee.org>
Tested-by: NJean-Francois Moine <moinejf@free.fr>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

We don't check to make sure the enable_lock is held across
enable/disable and we don't check if the prepare_lock is held
across prepare/unprepare. Add some asserts to catch any future
locking problems.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The APEATCLK and APETRACECLK are actually scaleable so register
them as scaleable clocks.
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

clk_dump() will dump data about all clocks in JSON
format, but it misses a newline character at the
end of the JSON string. This patch adds that missing
newline character.
Signed-off-by: NFelipe Balbi <balbi@ti.com>
[sboyd@codeaurora.org: Squelch checkpatch with seq_puts()]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Before commit 035a61c3 ("clk: Make clk API return per-user
struct clk instances") we acquired the enable_lock in
__clk_set_parent_{before,after}() by means of calling
clk_enable(). After commit 035a61c3 we use clk_core_enable()
in place of the clk_enable(), and clk_core_enable() doesn't
acquire the enable_lock. This opens up a race condition between
clk_set_parent() and clk_enable(). Fix it.

Fixes: 035a61c3 ("clk: Make clk API return per-user struct clk instances")
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NDong Aisheng <aisheng.dong@freescale.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The platform_device_id is not modified by the driver and core uses it as
const.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Staticize symbols not exported and not used outside of file.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Replace duplicated const keyword with proper array of const pointers to
const strings.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The array of parent names can be made as array of const pointers to
const strings.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The array of parent names can be made as array of const pointers to
const strings.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add missing static to local (file-scope only) symbols.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Add missing static to local (file-scope only) symbols.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch adds basic clocks for MT8173, including TOPCKGEN, PLLs,
INFRA and PERI clocks.
Signed-off-by: NJames Liao <jamesjj.liao@mediatek.com>
Signed-off-by: NHenry Chen <henryc.chen@mediatek.com>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch adds basic clocks for MT8135, including TOPCKGEN, PLLs,
INFRA and PERI clocks.
Signed-off-by: NJames Liao <jamesjj.liao@mediatek.com>
Signed-off-by: NHenry Chen <henryc.chen@mediatek.com>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The pericfg and infracfg units also provide reset lines to several
other SoC internal units. This adds a function which can be called
from the pericfg and infracfg initialization functions which will
register the reset controller using reset_controller_register. The
reset controller will provide support for resetting the units
connected to the pericfg and infracfg controller. The units resetted
by this controller can use the standard reset device tree binding
to gain access to the reset lines.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch adds common clock support for Mediatek SoCs, including plls,
muxes and clock gates.
Signed-off-by: NJames Liao <jamesjj.liao@mediatek.com>
Signed-off-by: NHenry Chen <henryc.chen@mediatek.com>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
[sboyd@codeaurora.org: Squelch checkpatch warning in clk-mtk.h]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The clk functions and structs declare the parent_name arrays as
'const char **parent_names' which means the parent name strings
are const, but the array itself is not. Use
'const char * const * parent_names' instead which also makes
the array const. This allows us to put the parent_name arrays into
the __initconst section.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
[sboyd@codeaurora.org: Squelch 80-character checkpatch warnings]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Commit ae43b328 ("ARM: 8202/1: dmaengine: pl330: Add runtime Power
Management support v12") added pm support for the pl330 dma driver but
it makes the clock for the Exynos5420 MDMA0 DMA controller to be gated
during suspend and this in turn makes its parent clock aclk266_g2d to
be gated. But the clock needs to be ungated prior suspend to allow the
system to be suspend and resumed correctly.

Add GATE_BUS_TOP register to the list of registers to be restored when
the system enters into a suspend state so aclk266_g2d will be ungated.

Thanks to Abhilash Kesavan for figuring out that this was the issue.

Fixes: ae43b328 ("ARM: 8202/1: dmaengine: pl330: Add runtime Power Management support v12")
Cc: stable@vger.kernel.org # 3.19+
Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: NKevin Hilman <khilman@linaro.org>
Tested-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Acked-by: NTomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

The irq_domain_ops are not modified by the driver and the irqdomain core
code accepts pointer to a const data.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Acked-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

key/value pairs in a JSON object must be separated by a comma.
After adding the properties "accuracy" and "phase" the JSON output
of /sys/kernel/debug/clk/clk_dump is invalid.

So add the missing commas to fix it.

Fixes: 5279fc40 ("clk: add clk accuracy retrieval support")
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
[sboyd@codeaurora.org: Added comment in function]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The gfx3d_clk_src parents configuration is incorrect. Fix it.

Fixes: 3966fab8 "clk: qcom: Add MSM8916 Global Clock Controller support"
Signed-off-by: NGeorgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

One of the video codec clock frequencies has incorrect divider
value. Fix it.

Fixes: 3966fab8 "clk: qcom: Add MSM8916 Global Clock Controller support"
Signed-off-by: NGeorgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

The debugfs clk directory no longer expresses a clk tree. Update
the comments around that apporiately. Also drop comments about
prepare locks needing to be held as we have the proper
annotations with lockdep_assert_held().
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Move the code around so that we don't need to declare function
prototypes at the start of the file. Simplify
clk_core_is_prepared() and clk_core_is_enabled() too to make the
diff easier to read.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This condition can't ever be true because this function is static
and it's always called with a non-NULL pointer.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

We don't need to print error messages when allocations fail.
We'll get a nice backtrace in such situations anyway.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

These functions are only used in one place. Let's squash them
into their respective callers to save some lines.
Signed-off-by: NDong Aisheng <aisheng.dong@freescale.com>
[sboyd@codeaurora.org: Redo commit text, add NULL check in
clk_enable()]
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

While introducing struct clk_core we tried to minimize the diff
by changing the type of 'clk' variables from struct clk to struct
clk_core without changing the names of the variables. Now that
the split is complete, the code is slightly confusing when it
mixes variables called 'clk' and variables called 'core' that are
of the same type struct clk_core. Let's be consistent and use
'core' everywhere we have a struct clk_core pointer and 'clk'
when we have a struct clk pointer.

Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch fixes the wrong PMS value of exynos5433_pll_rates table
for {ATLAS|APOLLO|MEM0|MEM1|BUS|MFC|MPHY|G3D|DISP|ISP|_PLL.
- 720 MHz (mdiv=360, pdiv=6, sdiv=1) -> 700 MHz (mdiv=175, pdiv=3, sdiv=1)
- 350 MHz (mdiv=360, pdiv=6, sdiv=2) -> (mdiv=350, pdiv=6, sdiv=2)
- 133 MHz (mdiv=552, pdiv=6, sdiv=4) -> (mdiv=532, pdiv=6, sdiv=4)
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

This patch fixes the wrong parent clock of sclk_apollo clock
from 'div_apollo_pll' to 'div_apollo2'.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

CLK_PCLK_MONOTONIC_CNT clock had a wrong register assigned to it.
The correct register is ENABLE_PCLK_MIF_SECURE_MONOTONIC_CNT.
Signed-off-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

This patch fixes the wrong offoset of PCLK_MSCL_SECURE_SMMU_JPEG in CMU_MSCL
domain.

Fixes: b274bbfd (clk: samsung: exynos5433: Add clocks for CMU_MSCL domain)
Signed-off-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

This patch removes the CONFIG_ARCH_EXYNOS5433 and then use only the
CONFIG_ARCH_EXYNOS for ARM-64bit Exynos5433 SoC.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Now that the kernel provides DIV_ROUND_CLOSEST_ULL(), drop the internal
implementation and use the kernel one.
Signed-off-by: NJavi Merino <javi.merino@arm.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>