This fixes
[ 0.000000] i.MX clk 82: register failed with -17
because the name is duplicated.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 3713e3f5e9 ("clk: imx35: define two clocks for rtc")
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen 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: Arnd Bergmann <arnd@arndb.de>
Fixes: e31a1900c1 ("meson: clk: Add support for clock gates")
Signed-off-by: Stephen 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: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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>
Four more SoCs converted to the new clock framework (A31, A31s, A23 and
A33).
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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
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.
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Merge tag 'clk-v4.9-samsung' of git://linuxtv.org/snawrocki/samsung into clk-next
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)
The sunxi-ng clock driver is useless for other architectures.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Maxime 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: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-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: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Add support for the class with a single factor, N, being a multiplier.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Add a new macro to declare muxes based on a table and a gate.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-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: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-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: Maxime Ripard <maxime.ripard@free-electrons.com>
Add some macros to ease the declaration of clocks that are using them.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-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: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Fixes: a8b6e85db6 ("clk: rk808: Migrate to clk_hw based OF and
registration APIs")
Signed-off-by: Stephen 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: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Chanwoo 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: Sylwester 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: Sylwester 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: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
This patch adds the mux/divider clocks for CMU_CDREX (DRAM Express
Controller) which generates the clocks for DRAM and NoC (Network on Chip)
bus. There is differnet source of MUX_MX_MSPLL_CCORE between exynos5420
and exynos5422, so each MUX_MX_MSPLL_CCORE uses the different parent source
group.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This patch uses the samsung_cmu_register_one() to simplify code
and move the pll/mux/div/gate data to initconst section.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This patch moves the samsung_cmu_info struct instances to initconst
section, this decreases the kernel image size by 784 bytes, which makes
zImage smaller by 480 bytes.
The patch increases .init.rodata section size by 780 bytes but decreases
.init.text section size by 1564 bytes.
Size of the drivers/clk/samsung/clk-exynos5260.o object file is 29100
bytes without the patch and 28316 after applying the patch.
The section size differences are as below:
15c15
< 3 .init.text 000006b8 00000000 00000000 00000034 2**2
---
> 3 .init.text 0000009c 00000000 00000000 00000034 2**2
25c25
< 8 .init.rodata 00003f6c 00000000 00000000 00002f20 2**2
---
> 8 .init.rodata 00004278 00000000 00000000 00002904 2**2
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Add myself to the SAMSUNG SOC CLOCK DRIVERS entry, I'm going to review
and test related patches as supporter. I can access all the datasheet
of Exynos SoC series and can do tests on Exynos based boards. I have
implemented the exynos4415/5433 clock drivers and co-authored the
exynos3250 clock driver. While at it, add missing paths of the exynos
clock driver files.
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
The PDMA{0,1} and EPLL clock IDs are added separately in this
patch so the patch can be merged to the arm-soc tree as dependency.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
This patch adds missing clock IDs for CMU_CDREX (DRAM Express Controller)
which generates clocks for DRAM and NoC (Network on Chip) busses.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
The usual bunch of fixes to the our clock drivers, mostly targetted to the
brand new sunxi-ng drivers.
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Merge tag 'sunxi-clk-fixes-for-4.8' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes
Clock Fixes for the Allwinner SoCs, 4.8 Edition
The usual bunch of fixes to the our clock drivers, mostly targetted to the
brand new sunxi-ng drivers.
* tag 'sunxi-clk-fixes-for-4.8' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
clk: sunxi-ng: Fix wrong reset register offsets
clk: sunxi-ng: nk: Make ccu_nk_find_best static
clk: sunxi-ng: Fix inverted test condition in ccu_helper_wait_for_lock
clk: sunxi: Fix return value check in sun8i_a23_mbus_setup()
clk: sunxi: pll2: Fix return value check in sun4i_pll2_setup()
If the firmware had set up a clock to source from PLLC, go along with
it. But if we're looking for a new parent, we don't want to switch it
to PLLC because the firmware will force PLLC (and thus the AXI bus
clock) to different frequencies during over-temp/under-voltage,
without notification to Linux.
On my system, this moves the Linux-enabled HDMI state machine and DSI1
escape clock over to plld_per from pllc_per. EMMC still ends up on
pllc_per, because the firmware had set it up to use that.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: 41691b8862 ("clk: bcm2835: Add support for programming the audio domain clocks")
Acked-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
While the SDRAM is being driven by its dedicated PLL most of the time,
there is a little loop running in the firmware that periodically turns
on the CM SDRAM clock (using its pre-initialized parent) and switches
SDRAM to using the CM clock to do PVT recalibration.
This avoids system hangs if we choose SDRAM's parent for some other
clock, then disable that clock.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
These divide off of PLLD_PER and are used for the ethernet and wifi
PHYs source PLLs. Neither of them is currently represented by a phy
device that would grab the clock for us.
This keeps other drivers from killing the networking PHYs when they
disable their own clocks and trigger PLLD_PER's refcount going to 0.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The VPU clock is also the clock for our AXI bus, so we really can't
disable it. This might have happened during boot if, for example,
uart1 (aux_uart clock) probed and was then disabled before the other
consumers of the VPU clock had probed.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
control. While reading that clock is done the normal way from the
registers, setting it always requires some sort of special handling
to let the system survive this addition.
As the commit message explains, there are currently 3 handling-types
known. General SRAM-based code on rk3288 and before (which is waiting
essentially for the PIE support that is currently being worked on),
SCPI-based clk setting on the rk3368 through a coprocessor, which we
might support once the support for legacy scpi-variants has matured
and now on the rk3399 (and probably later) using a dcf controller that
is controlled from the arm-trusted-firmware and gets accessed through
firmware calls from the kernel. This is the variant we currently
support, but the clock type is made to support the other variants in
the future as well.
Apart from that slightly bigger chunk, we have a mix of PLL rates,
clock-ids and flags mainly for the rk3399.
And interestingly an iomap fix for the legacy gate driver, where I
hopefully could deter the submitter from actually using that in any
new works.
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Merge tag 'v4.9-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:
The biggest addition is probably the special clock-type for ddr clock
control. While reading that clock is done the normal way from the
registers, setting it always requires some sort of special handling
to let the system survive this addition.
As the commit message explains, there are currently 3 handling-types
known. General SRAM-based code on rk3288 and before (which is waiting
essentially for the PIE support that is currently being worked on),
SCPI-based clk setting on the rk3368 through a coprocessor, which we
might support once the support for legacy scpi-variants has matured
and now on the rk3399 (and probably later) using a dcf controller that
is controlled from the arm-trusted-firmware and gets accessed through
firmware calls from the kernel. This is the variant we currently
support, but the clock type is made to support the other variants in
the future as well.
Apart from that slightly bigger chunk, we have a mix of PLL rates,
clock-ids and flags mainly for the rk3399.
And interestingly an iomap fix for the legacy gate driver, where I
hopefully could deter the submitter from actually using that in any
new works.
* tag 'v4.9-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
clk: rockchip: use the dclk_vop_frac clock ids on rk3399
clk: rockchip: drop CLK_SET_RATE_PARENT from rk3399 fractional dividers
clk: rockchip: add 2016M to big cpu clk rate table on rk3399
clk: rockchip: add rk3399 ddr clock support
clk: rockchip: add dclk_vop_frac ids for rk3399 vop
clk: rockchip: add new clock-type for the ddrclk
soc: rockchip: add header for ddr rate SIP interface
clk: rockchip: add SCLK_DDRC id for rk3399 ddrc
clk: rockchip: handle of_iomap failures in legacy clock driver
clk: rockchip: mark rk3399 hdcp_noc and vio_noc as critical
clk: rockchip: use general clock flag when registering pll
clk: rockchip: delete the CLK_IGNORE_UNUSED from aclk_pcie on rk3399
clk: rockchip: add 65MHz and 106.5MHz rates to rk3399 plls used for HDMI
Add a section for Renesas clock drivers, as found on Renesas ARM SoCs,
and list myself as the maintainer.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Check the MD_CLK pin to determine the current clock mode in order to set
the pll clock parent correctly.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Export the dclk_vop_frac out, so we can set the dclk_vop as the
child of dclk_vop_frac, and then we can start to take use of
the fractional dividers.
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Currently the fractional divider clock time can't handle the
CLK_SET_RATE_PARENT flag. This is because, unlike normal dividers,
there is no clk_divider_bestdiv() function to try speeding up the parent
to see if it helps things.
Eventually someone could try to figure out how to make fractional
dividers able to use CLK_SET_RATE_PARENT, but until they do let's not
confuse the common clock framework (and anyone using it) by setting the
flag.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
We would prefer the 2016M as 2.0G than 1992M which seems odd, adding
it to big cpu clk rate table then we can set 2016M in dts.
Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Reviewed-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
add ddrc clock setting, so we can do ddr frequency
scaling on rk3399 platform in future.
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Export the dclk_vop_frac out, so we can set the dclk_vop as the
child of dclk_vop_frac, and then we can start to take use of
the fractional dividers.
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This patch adds support for the meson8b clock gates. Most of
them are disabled by Amlogic U-Boot, but need to be enabled
for ethernet, USB and many other components.
Signed-off-by: Alexander Müller <serveralex@gmail.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1472319654-59048-7-git-send-email-serveralex@gmail.com
