* clk-semicolon:
clk: meson: use semicolons rather than commas to separate statements
clk: mvebu: ap80x-cpu: use semicolons rather than commas to separate statements
clk: uniphier: use semicolons rather than commas to separate statements
* clk-axi-clkgen:
clk: axi-clkgen: Set power bits for fractional mode
clk: axi-clkgen: Add support for fractional dividers
* clk-qoriq:
clk: qoriq: modify MAX_PLL_DIV to 32
* clk-baikal:
clk: baikal-t1: Mark Ethernet PLL as critical
* clk-const:
clk: pxa: Constify static struct clk_ops
* clk-mmp2:
clk: mmp2: Fix the display clock divider base
Constify a couple of static struct clk_ops that are not modified. Their
only usage is inside the macros and their address is passed to
clk_register_composite() which takes pointers to const struct clk_ops.
This allows the compiler to put them in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20200922184715.1854-1-rikard.falkeborn@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
We've discovered that disabling the so called Ethernet PLL causes reset of
the devices consuming its outgoing clock. The resets happen automatically
even if each underlying clock gate is turned off. Due to that we can't
disable the Ethernet PLL until the kernel is prepared for the corresponding
resets. So for now just mark the PLL clock provider as critical.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: linux-mips@vger.kernel.org
Link: https://lore.kernel.org/r/20200920110335.18034-1-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Using the fractional dividers requires some additional power bits to be
set.
The fractional power bits are not documented and the current heuristic
for setting them seems be insufficient for some cases. Just always set all
the fractional power bits when in fractional mode.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201001085948.21412-2-alexandru.ardelean@analog.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The axi-clkgen has (optional) fractional dividers on the output clock
divider and feedback clock divider path. Utilizing the fractional dividers
allows for a better resolution of the output clock, being able to
synthesize more frequencies.
Rework the driver support to support the fractional register fields, both
for setting a new rate as well as reading back the current rate from the
hardware.
For setting the rate if no perfect divider settings were found in
non-fractional mode try again in fractional mode and see if better settings
can be found. This appears to be the recommended mode of operation.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201001085948.21412-1-alexandru.ardelean@analog.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add the following clock support for MT8167 SoC: topckgen, apmixedsys,
infracfg, audsys, imgsys, mfgcfg, vdecsys.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20200918132303.2831815-2-fparent@baylibre.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
We can get down to this return value from ERR_CAST() without
initializing hw. Set it to -ENOMEM so that we always return something
sane.
Fixes the following smatch warning:
drivers/clk/rockchip/clk-half-divider.c:228 rockchip_clk_register_halfdiv() error: uninitialized symbol 'hw'.
drivers/clk/rockchip/clk-half-divider.c:228 rockchip_clk_register_halfdiv() warn: passing zero to 'ERR_CAST'
Cc: Elaine Zhang <zhangqing@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Fixes: 956060a527 ("clk: rockchip: add support for half divider")
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
of an unused parent-names struct.
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Merge tag 'v5.10-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-rockchip
Pull Rockchip clk driver updates from Heiko Stuebner:
Ability to build the clock driver as module and removal
of an unused parent-names struct.
* tag 'v5.10-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
clk: rockchip: rk3399: Support module build
clk: rockchip: fix the clk config to support module build
clk: rockchip: Export some clock common APIs for module drivers
clk: rockchip: Export rockchip_register_softrst()
clk: rockchip: Export rockchip_clk_register_ddrclk()
clk: rockchip: Use clk_hw_register_composite instead of clk_register_composite calls
clk: rockchip: rk3308: drop unused mux_timer_src_p
The provider variable is already dereferenced earlier in this function.
Drop the check for NULL as it is impossible.
Found with smatch
drivers/clk/tegra/clk-tegra210-emc.c:131 tegra210_clk_emc_set_rate() warn: variable dereferenced before check 'provider' (see line 124)
Cc: Joseph Lo <josephl@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Fixes: 0ac65fc946 ("clk: tegra: Implement Tegra210 EMC clock")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200922191641.2305144-1-sboyd@kernel.org
Acked-by: Thierry Reding <treding@nvidia.com>
Fix a memory leak induced by not calling clk_put after doing of_clk_get.
Reported-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Link: https://lore.kernel.org/r/20200907082600.454-3-t-kristo@ti.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The clk pointer passed to omap2_clk_(deny|allow)_idle can be NULL, so
add checks for this.
Reported-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Link: https://lore.kernel.org/r/20200907082600.454-2-t-kristo@ti.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Currently, we request exact clock rates from the firmware to be set with
set_rate. Due to some rounding errors and internal functionality of the
firmware itself, this can fail. Thus, add some slack to the set_rate
functionality so that we are always guaranteed to pass. The firmware
always attempts to use frequency as close to the target freq as
possible despite the slack given here.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Link: https://lore.kernel.org/r/20200907085740.1083-4-t-kristo@ti.com
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Cache results of the latest query rate operation. This optimizes the
firmware interface a bit, avoiding unnecessary calls to firmware if we
know the result already; the firmware interface is pretty expensive
to use for query rate functionality.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Link: https://lore.kernel.org/r/20200907085740.1083-3-t-kristo@ti.com
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The DT clock probe loop incorrectly terminates after processing "clocks"
only, fix this by re-starting the loop when all entries for current
DT property have been parsed.
Fixes: 8e48b33f9d ("clk: keystone: sci-clk: probe clocks from DT instead of firmware")
Reported-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Link: https://lore.kernel.org/r/20200907085740.1083-2-t-kristo@ti.com
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
./drivers/clk/mediatek/clk-mt6765.c:912:3-8: No need to set .owner here. The core will do it.
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Fixes: 1aca9939bf ("clk: mediatek: Add MT6765 clock support")
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1600761065-71353-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
drivers/clk/socfpga/clk-agilex.c:24:37: warning: ‘cntr_mux’ defined but not used [-Wunused-const-variable=]
static const struct clk_parent_data cntr_mux[] = {
^~~~~~~~
There is no caller in tree, so can remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200915020950.4688-1-yuehaibing@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
'err' is assigned but never read:
/drivers/clk/clk-si5341.c: In function ‘si5341_output_get_parent’:
drivers/clk/clk-si5341.c:886:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200916161740.14173-5-krzk@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
'clk' is assigned but never read:
drivers/clk/mmp/clk-of-pxa1928.c: In function ‘pxa1928_pll_init’:
drivers/clk/mmp/clk-of-pxa1928.c:71:14: warning: variable ‘clk’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200916161740.14173-4-krzk@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The at91sam9g45_pcr_layout is not used so drop it to fix build warning:
drivers/clk/at91/at91sam9g45.c:49:36: warning:
'at91sam9g45_pcr_layout' defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200916161740.14173-1-krzk@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add missing kerneldoc to fix compile warning:
drivers/clk/davinci/da8xx-cfgchip.c:578: warning: Function parameter or member 'dev' not described in 'da8xx_cfgchip_register_usb1_clk48'
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: David Lechner <david@lechnology.com>
Link: https://lore.kernel.org/r/20200916161740.14173-3-krzk@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add missing kerneldoc to fix compile warnings like:
drivers/clk/clk-fixed-factor.c:211: warning: Function parameter or member 'node' not described in 'of_fixed_factor_clk_setup'
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200916161740.14173-2-krzk@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The driver was using subsys_initcall() because in old times deferred
probe was not supported everywhere and specific ordering was needed.
Since probe deferral works fine and specific ordering is discouraged
(hides dependencies between drivers and couples their boot order), the
driver can be converted to regular module_platform_driver.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200921203558.19554-1-krzk@kernel.org
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Minor refactoring removing most of the __clk_lookup() calls.
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Merge tag 'clk-v5.10-samsung' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-samsung
Pull Samsung clk driver updates from Sylwester Nawrocki:
Minor refactoring removing most of the __clk_lookup() calls.
* tag 'clk-v5.10-samsung' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
clk: samsung: Use cached clk_hws instead of __clk_lookup() calls
clk: samsung: exynos5420/5250: Add IDs to the CPU parent clk definitions
clk: samsung: Add clk ID definitions for the CPU parent clocks
clk: samsung: exynos5420: Avoid __clk_lookup() calls when enabling clocks
clk: samsung: exynos5420: Add definition of clock ID for mout_sw_aclk_g3d
clk: samsung: Keep top BPLL mux on Exynos542x enabled
support CLK_OF_DECLARE and builtin_platform_driver_probe
double clk init method.
add module author, description and license to support building
Soc Rk3399 clock driver as module.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200914022316.24045-1-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
use CONFIG_COMMON_CLK_ROCKCHIP for Rk common clk drivers.
use CONFIG_CLK_RKXX for Rk soc clk driver.
Mark CONFIG_CLK_RK3399 to "tristate",
to support building Rk3399 SoC clock driver as module.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200914022304.23908-1-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This is used by the Rockchip clk driver, export it to allow that
driver to be compiled as a module.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200914022225.23613-5-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This is used by the Rockchip clk driver, export it to allow that
driver to be compiled as a module..
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200914022225.23613-4-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This is used by the Rockchip clk driver, export it to allow that
driver to be compiled as a module..
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200914022225.23613-3-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The parent names 'mux_timer_src_p' is not used:
In file included from drivers/clk/rockchip/clk-rk3308.c:13:0:
drivers/clk/rockchip/clk-rk3308.c:136:7: warning: ‘mux_timer_src_p’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200916161740.14173-6-krzk@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Allwinner A100 SoC, and adding support for the sigma-delta modulation on
the audio PLL for the R40.
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Merge tag 'sunxi-clk-for-5.10-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner
Pull Allwinner clk driver updates from Maxime Ripard:
Our usual PR for the Allwinner SoCs, this time adding support for the
Allwinner A100 SoC, and adding support for the sigma-delta modulation on
the audio PLL for the R40.
* tag 'sunxi-clk-for-5.10-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
clk: sunxi-ng: sun8i: r40: Use sigma delta modulation for audio PLL
clk: sunxi-ng: add support for the Allwinner A100 CCU
dt-bindings: clk: sunxi-ccu: add compatible string for A100 CCU and R-CCU
- Add support for the new R-Car V3U (R8A779A0) SoC,
- Minor fixes and improvements.
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Merge tag 'clk-renesas-for-v5.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pull Renesas clk driver updates from Geert Uytterhoeven:
- Add support for the new R-Car V3U (R8A779A0) SoC
- Add support for the VSP for Resizing clock on RZ/G1H,
- Fix VSP clock names to match corrected hardware documentation.
- Minor fixes and improvements
* tag 'clk-renesas-for-v5.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: rcar-gen3: Update description for RZ/G2
clk: renesas: cpg-mssr: Add support for R-Car V3U
clk: renesas: cpg-mssr: Add register pointers into struct cpg_mssr_priv
clk: renesas: cpg-mssr: Use enum clk_reg_layout instead of a boolean flag
dt-bindings: clock: renesas,cpg-mssr: Document r8a779a0
dt-bindings: clock: Add r8a779a0 CPG Core Clock Definitions
dt-bindings: power: Add r8a779a0 SYSC power domain definitions
clk: renesas: rcar-gen2: Rename vsp1-(sy|rt) clocks to vsp(s|r)
clk: renesas: r8a7742: Add clk entry for VSPR
The rcar-gen3-cpg driver is also used on Renesas RZ/G2 SoC's, update the
description for the CLK_RCAR_GEN3_CPG config symbol to reflect this.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Link: https://lore.kernel.org/r/20200911101703.20521-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Initial support for R-Car V3U (r8a779a0), including core, module
clocks, resets, and register access, because register specification
differs from R-Car Gen2/3.
Inspired by patches in the BSP by LUU HOAI.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599810232-29035-4-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Clock and Power Domain definitions for the Renesas R-Car V3U (R8A779A0)
SoC, shared by driver and DT source files.
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Merge tag 'renesas-r8a779a0-dt-binding-defs-tag' into clk-renesas-for-v5.10
Renesas R-Car V3U DT Binding Definitions
Clock and Power Domain definitions for the Renesas R-Car V3U (R8A779A0)
SoC, shared by driver and DT source files.
To support other register layouts in the future, add register pointers
of {control,status,reset,reset_clear}_regs into struct cpg_mssr_priv.
After that, we can remove unused macros like MSTPSR(). No behavioral
changes.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599810232-29035-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>