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* clk-fixes:
clk: efm32gg: Pass correct type to hw provider registration
clk: berlin: Pass correct type to hw provider registration
clk: sunxi: Fix M factor computation for APB1
clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent
Two fixes, one for the old clock code, one for the new implementation.
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Merge tag 'sunxi-clk-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes
Pull Allwinner clock fixes from Maxime Ripard:
Two fixes, one for the old clock code, one for the new implementation.
* tag 'sunxi-clk-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
clk: sunxi: Fix M factor computation for APB1
clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent
Dan Carpenter reports that we're passing a pointer to a pointer
here when we should just be passing a pointer. Pass the right
pointer so that the of_clk_hw_onecell_get() sees the appropriate
data pointer on its end.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 9337631f52a8 ("clk: efm32gg: Migrate to clk_hw based OF and registration APIs")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Dan Carpenter reports that we're passing a pointer to a pointer
here when we should just be passing a pointer. Pass the right
pointer so that the of_clk_hw_onecell_get() sees the appropriate
data pointer on its end.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jisheng Zhang <jszhang@marvell.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Fixes: f6475e298297 ("clk: berlin: Migrate to clk_hw based registration and OF APIs")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
In current kernel config 'CONFIG_STUB_CLK_HI6220' is disabled by
default, as result stub clock driver has not been registered and
CPUFreq driver cannot work.
This patch is to enable stub clock driver in config for ARCH_HISI.
Reported-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
(rk3036, rk3399) does now take into account the mode that the PLL is
actually running at.
As always also some additional and optimized PLL rates for rk3066 and
rk3399, some additional clock ids for rk3066 and some additional clocks
on rk3399 are now sucessfully handled inside their respective driver.
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Merge tag 'v4.10-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next
Pull Rockchip clk driver updates from Heiko Stuebner:
PLL initialization for PLLs having both an integral and fractional mode
(rk3036, rk3399) does now take into account the mode that the PLL is
actually running at.
As always also some additional and optimized PLL rates for rk3066 and
rk3399, some additional clock ids for rk3066 and some additional clocks
on rk3399 are now sucessfully handled inside their respective driver.
* tag 'v4.10-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
clk: rockchip: Ignore frac divisor for PLL equivalence when it's unused
clk: rockchip: remove more CLK_IGNORE_UNUSED for rk3399 clocktree
clk: rockchip: add 400MHz to rk3066 clock rates table
clk: rockchip: optimize 800MHz and 1GHz pll rates on RK3399
clk: rockchip: Use clock ids for cpu and peri clocks on rk3066
clk: rockchip: Add binding ids for cpu and peri clocks on rk3066
clk: rockchip: add 533.25MHz to rk3399 clock rates table
Add CRG driver for Hi3516CV300 SoC. CRG(Clock and Reset
Generator) module generates clock and reset signals used
by other module blocks on SoC.
Signed-off-by: Pan Wen <wenpan@hisilicon.com>
Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add CRG driver for Hi3798CV200 SoC. CRG(Clock and Reset
Generator) module generates clock and reset signals used
by other module blocks on SoC.
Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This adds initial support for clocks controlled by the Resource
Power Manager (RPM) processor on some Qualcomm SoCs, which use
the qcom_rpm driver to communicate with RPM.
Such platforms are apq8064 and msm8960.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This adds initial support for clocks controlled by the Resource
Power Manager (RPM) processor on some Qualcomm SoCs, which use
the qcom_smd_rpm driver to communicate with RPM.
Such platforms are msm8916, apq8084 and msm8974.
The RPM is a dedicated hardware engine for managing the shared
SoC resources in order to keep the lowest power profile. It
communicates with other hardware subsystems via shared memory
and accepts clock requests, aggregates the requests and turns
the clocks on/off or scales them on demand.
This driver is based on the codeaurora.org driver:
https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/clk/qcom/clock-rpm.c
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
[sboyd@codeaurora.org: Remove useless braces for single line if]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Currently the RPM/RPM-SMD clock drivers do not register the xo clocks,
so we should always add factor clock. When we later add xo clocks support
into the drivers, we should update this function to skip registration.
By doing so we avoid any DT dependencies.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The clock definition was ported from the Google 3.10 kernel tree to
work with the latest kernel.
Signed-off-by: Bastian Köcher <mail@kchr.de>
[jeremymc@redhat.com: created new commit of just dt-bindings]
Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com>
[sboyd@codeaurora.org: Tidy up commit text and Kconfig help]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com>
[sboyd@codeaurora.org: Dropped unused and incorrect GDSC defines]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Use the builtin_platform_driver() macro to make the code simpler.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The clocks on these boards run at 25 MHz, not 19.2 and 27 like
other platforms. Unfortunately I copy/pasted from other similar
SoCs but forgot this one is different. Fix it.
Fixes: a085f877a882 ("clk: qcom: Move cxo/pxo/xo into dt files")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This function is passed an __iomem pointer but we use a u32
pointer instead which makes checkers like spare complain.
Furthermore, "lock" is a pretty poor variable name for a string
that will go into lockdep reports and the symbol isn't marked
static. Cleanup all this.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The : of the ?: operator should have a leading space.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[sboyd@codeaurora.org: Also remove useless parenthesis]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The new pxa2xx_determine_rate() function seems lacking in a few
regards:
- For an exact match or no match at all, the rate is uninitialized
as reported by gcc -Wmaybe-unintialized:
drivers/clk/pxa/clk-pxa.c: In function 'pxa2xx_determine_rate':
drivers/clk/pxa/clk-pxa.c:243:5: error: 'rate' may be used uninitialized in this function
- If we get a non-exact match, the req->rate output is never set
to the actual rate but remains at the requested rate.
- We should not attempt to print a rate if none could be found
This rewrites the logic accordingly.
Fixes: 9fe694295098 ("clk: pxa: transfer CPU clock setting from pxa2xx-cpufreq")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
In infrasys and perifsys, there are many reset
control bits for kinds of modules. These bits are
used as actual reset controllers to be registered
into kernel's generic reset controller framework.
Signed-off-by: Shunli Wang <shunli.wang@mediatek.com>
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Tested-by: John Crispin <blogic@openwrt.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add MT2701 clock support, include topckgen, apmixedsys,
infracfg, pericfg and subsystem clocks.
Signed-off-by: Shunli Wang <shunli.wang@mediatek.com>
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Tested-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The dummy_clk_set_parent function is marked as 'static' but is
no longer referenced from the pxa25x clk driver after the last use
of the RATE_RO_OPS() macro is gone from this file, causing a
harmless build warning:
In file included from drivers/clk/pxa/clk-pxa25x.c:24:0:
drivers/clk/pxa/clk-pxa.h:146:12: error: 'dummy_clk_set_parent' defined but not used [-Werror=unused-function]
This marks the functon as 'inline', which lets the compiler simply
drop it when it gets referenced.
Fixes: 9fe694295098 ("clk: pxa: transfer CPU clock setting from pxa2xx-cpufreq")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Rockchip RK3399 PLLs can be used in two separate modes: integral and
fractional. We can select between these two modes with the unambiguously
named DSMPD bit.
During boot, we check all PLL settings to confirm that they match our
PLL table for that frequency, and reinitialize the PLLs where they
don't. The settings checked for this include the fractional divider
field that is only used in fractional mode, even if we're in integral
mode (DSMPD = 1) and that field has no effect.
This patch changes the check to only compare the fractional divider if
we're actually in fractional mode. This way, we won't reinitialize the
PLL in cases where there's absolutely no reason for that, which may
avoid glitching child clocks that should better not be glitched (e.g.
PWM regulators).
Signed-off-by: Julius Werner <jwerner@chromium.org>
[cloned the fix to the pretty similar rk3036 pll]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
We need this to init PLL_CPLL to 400MHz at boot.
Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The Kconfig currently controlling compilation of this code is:
arch/arm/mach-omap2/Kconfig:config SOC_DRA7XX
arch/arm/mach-omap2/Kconfig: bool "TI DRA7XX"
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.
Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tags etc. since all that information
is already contained at the top of the file in the comments.
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-omap@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The Kconfig currently controlling compilation of this code is:
arch/arm/mach-tegra/Kconfig:config ARCH_TEGRA_124_SOC
arch/arm/mach-tegra/Kconfig: bool "Enable support for Tegra124 family"
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tags etc. since all that information
is already contained at the top of the file in the comments.
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Aleksandr Frid <afrid@nvidia.com>
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The Kconfig currently controlling compilation of this code is:
drivers/clk/mvebu/Kconfig:config ARMADA_AP806_SYSCON
drivers/clk/mvebu/Kconfig: bool
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.
Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The Kconfig currently controlling compilation of this code is:
drivers/clk/mvebu/Kconfig:config ARMADA_CP110_SYSCON
drivers/clk/mvebu/Kconfig: bool
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.
Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This is the initial stage to transfer the pxa25x and pxa27x CPU clocks
handling from cpufreq to the clock API. More precisely, the clocks
transferred are :
- cpll : core pll, known also as the CPU core turbo frequency
- core : core, known also as the CPU actual frequency, being either the
CPU core turbo frequency or the CPU core run frequency
This transfer is a prequel to shrink the code in pxa2xx-cpufreq.c, so
that it can become, at least in devicetree builds, the casual cpufreq-dt
driver.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
commit cfa636886033 ("clk: sunxi: factors: Consolidate get_factors
parameters into a struct") introduced a regression for m factor
computation in sun4i_get_apb1_factors function.
The old code reassigned the "parent_rate" parameter to the targeted
divisor value and was buggy for the returned frequency but not for the
computed factors. Now, returned frequency is good but m factor is
incorrectly computed (its max value 31 is always set resulting in a
significantly slower frequency than the requested one...)
This patch simply restores the original proper computation for m while
keeping the good changes for returned rate.
Fixes: cfa636886033 ("clk: sunxi: factors: Consolidate get_factors parameters into a struct")
Signed-off-by: Stéphan Rafin <stephan@soliotek.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add frequency tables for a few RCG clocks in msm8996
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This would be useful in subsequent patches when the .set_rate operation
would need to identify if the PLL is actually enabled
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
[sboyd@codeaurora.org: Simplify return statement of is_enabled op]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The votable alpha PLLs need to have the fsm mode enabled as part
of the initialization. The sequence seems to be the same as used
by clk-pll, so move the function which does this into a common
place and reuse it for the clk-alpha-pll
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Some alpha PLLs have support for only a 16bit programable Alpha Value
(as against the default 40bits). Add a flag to handle the 16bit alpha
registers
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add a function to do initial configuration of the alpha plls
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Some PLLs can support an HW FSM mode (different from the Votable FSMs,
though its the same bit used to enable Votable FSMs as well as HW FSMs)
which enables the HW to do the bypass/reset/enable-output-ctrl sequence
on its own. So all thats needed from SW is to set the FSM_ENA bit.
PLL_ACTIVE_FLAG is whats used to check if the PLL is active/enabled.
Some of the PLLs which support HW FSM can also need an OFFLINE request
that needs to be toggled across the enable/disable. We use a flag to
identify such cases and handle them.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk-fixes:
clk: mmp: pxa910: fix return value check in pxa910_clk_init()
clk: mmp: pxa168: fix return value check in pxa168_clk_init()
clk: mmp: mmp2: fix return value check in mmp2_clk_init()
clk: qoriq: Don't allow CPU clocks higher than starting value
The current I2C freq table uses MND values which is not
applicable for I2C since its RCG does not have MND
counter. This patch updates the freq table for 19.05
MHz clk frequency with FEPLL_200 parent.
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
pxaxxx_get_clk_frequency_khz() needs several clocks to be available
through clk_get(), ie. the cpu clocks, system bus clock and memory
clocks.
Add the missing clkdev so that their rate can be acquired.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The meaning of this bit was inverted :
- when set to 0, system bus clock is half of the CPU run clock
- when set to 1, system bus clock is the CPU run clock
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The t bit of clkfcfg doesn't affect the core pll clock, but it makes core
clock select between core pll clock and core run clock.
As such remove it from the core pll rate reporting function, while it
remains in clk_pxa27x_core_get_parent().
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
