Changes in Kconfig

7b661285aa7507eab79efff0a418445157db4141 - firmware: samsung: acpm: remove compile-testing stubs

Fri, 29 May 2026 15:43:31 +0200

firmware: samsung: acpm: remove compile-testing stubsSashiko reported an inconsistent use of NULL vs ERR_PTR()returns in the stub helpers in xynos-acpm-protocol.h.Since this only happens on dead code for COMPILE_TEST=y, this is notreally a bug though. Having stub functions that return NULL is a commonway to define optional interfaces, where callers still work when thefeature is disabled, though this clearly does not work for acpm becausesome callers have a NULL pointer dereference when compile testing.Since CONFIG_EXYNOS_ACPM_PROTOCOL already supports compile-testing itself,and all (both) drivers using it clearly require the support, so thisjust simplifies the option space without losing any build coverage.Remove the stub functions entirely and adjust the one Kconfigdependency to require EXYNOS_ACPM_PROTOCOL unconditionally.Fixes: 6837c006d4e7 ("firmware: exynos-acpm: add empty method to allow compile test")Closes: https://sashiko.dev/#/patchset/20260420-acpm-tmu-v3-0-3dc8e93f0b26%40linaro.orgLink: https://lore.kernel.org/all/a7994860-24a3-4f87-84bf-109ed653dda4@linaro.org/Reviewed-by: Tudor Ambarus Signed-off-by: Arnd Bergmann Link: https://patch.msgid.link/20260529134454.2147446-1-arnd@kernel.org[krzk: Rebase on difference in devm_acpm_get_by_node()]Signed-off-by: Krzysztof Kozlowski List of files: /linux/drivers/clk/samsung/Kconfig

40498a74205371400a5b0088acb886ac47a523aa - clk: samsung: add Exynos ACPM clock driver

Fri, 10 Oct 2025 14:46:34 +0200

clk: samsung: add Exynos ACPM clock driverAdd the Exynos ACPM clock driver. It provides support for clocks thatare controlled by firmware that implements the ACPM interface.Signed-off-by: Tudor Ambarus Reviewed-by: Peter Griffin Tested-by: Peter Griffin # on gs101-orioleLink: https://patch.msgid.link/20251010-acpm-clk-v6-4-321ee8826fd4@linaro.orgSigned-off-by: Krzysztof Kozlowski List of files: /linux/drivers/clk/samsung/Kconfig

2aac2d8b95923203e683c60124877ab434133679 - clk: samsung: add CONFIG_OF dependency

Fri, 09 Jun 2023 10:15:49 +0200

clk: samsung: add CONFIG_OF dependencyWhen CONFIG_OF is disabled, build testing on x86 runs into a couple ofobjtool warnings from functions that unconditionally call panic() buthave no __noreturn annotation:vmlinux.o: warning: objtool: exynos3250_cmu_isp_probe+0x17: samsung_cmu_register_one() is missing a __noreturn annotationvmlinux.o: warning: objtool: exynos7885_cmu_probe+0x16: exynos_arm64_register_cmu() is missing a __noreturn annotationvmlinux.o: warning: objtool: exynos850_cmu_probe+0x16: exynos_arm64_register_cmu() is missing a __noreturn annotationvmlinux.o: warning: objtool: exynosautov9_cmu_probe+0x16: exynos_arm64_register_cmu() is missing a __noreturn annotationThe objtool analysis is correct, and this could be addressed by justreturning success whenever CONFIG_OF is disabled to let all that codebe eliminated, but since the driver is no use without CONFIG_OF,just add that as a dependency. It will still get compile tested onall architectures since CONFIG_OF is enabled in allmodconfig and mostrandconfig builds.Cc: Josh Poimboeuf Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20230609081559.915867-1-arnd@kernel.orgSigned-off-by: Krzysztof Kozlowski List of files: /linux/drivers/clk/samsung/Kconfig

594b3caeaf7938ce49a920b8fc835a67216ada28 - clk: remove s3c24xx driver

Fri, 30 Sep 2022 13:11:14 +0200

clk: remove s3c24xx driverThe s3c24xx platform is gone, so the clk driver can be removed aswell.Acked-by: Stephen Boyd Reviewed-by: Krzysztof Kozlowski Signed-off-by: Arnd Bergmann List of files: /linux/drivers/clk/samsung/Kconfig

0b59bc00a6936e8670b58d4307a2cfba341d40d0 - clk: samsung: fix missing Tesla FSD dependency on Exynos

Sat, 29 Jan 2022 18:34:07 +0100

clk: samsung: fix missing Tesla FSD dependency on ExynosThe Tesla FSD clock controller driver uses shared parts from ExynosARM64 clock drivers, so add proper dependency to fix COMPILE_TEST builderrors like: /usr/bin/aarch64-linux-gnu-ld: drivers/clk/samsung/clk-fsd.o: in function `fsd_cmu_probe': clk-fsd.c:(.init.text+0x9c): undefined reference to `exynos_arm64_register_cmu'Reported-by: kernel test robot Fixes: e3f3dc3810d3 ("clk: samsung: fsd: Add cmu_peric block clock information")Signed-off-by: Krzysztof Kozlowski Reviewed-by: Alim Akhtar Link: https://lore.kernel.org/r/20220129173407.278591-1-krzysztof.kozlowski@canonical.com List of files: /linux/drivers/clk/samsung/Kconfig

4f346005aaed641042ca18171c4383a6a85f6a8b - clk: samsung: fsd: Add initial clock support

Mon, 24 Jan 2022 15:16:32 +0100

clk: samsung: fsd: Add initial clock supportAdd initial clock support for FSD (Full Self-Driving) SoCwhich is required to bring-up platforms based on this SoC.Cc: linux-fsd@tesla.comSigned-off-by: Jayati Sahu Signed-off-by: Ajay Kumar Signed-off-by: Pankaj Dubey Signed-off-by: Alim Akhtar Acked-by: Sylwester Nawrocki Link: https://lore.kernel.org/r/20220124141644.71052-5-alim.akhtar@samsung.comSigned-off-by: Krzysztof Kozlowski List of files: /linux/drivers/clk/samsung/Kconfig

9fe667af61d22fbeec823843962a77cd39993966 - clk: samsung: describe drivers in Kconfig

Fri, 24 Sep 2021 15:36:24 +0200

clk: samsung: describe drivers in KconfigDescribe better which driver applies to which SoC, to make configuringkernel for Samsung SoC easier.Signed-off-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Link: https://lore.kernel.org/r/20210924133624.112593-1-krzysztof.kozlowski@canonical.comSigned-off-by: Sylwester Nawrocki List of files: /linux/drivers/clk/samsung/Kconfig

8653b778e454a7708847aeafe689bce07aeeb94e - Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Mon, 21 Dec 2020 19:39:37 +0100

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxPull clk updates from Stephen Boyd: "The core framework got some nice improvements this time around. We gained the ability to get struct clk pointers from a struct clk_hw so that clk providers can consume the clks they provide, if they need to do something like that. This has been a long missing part of the clk provider API that will help us move away from exposing a struct clk pointer in the struct clk_hw. Tracepoints are added for the clk_set_rate() "range" functions, similar to the tracepoints we already have for clk_set_rate() and we added a column to debugfs to help developers understand the hardware enable state of clks in case firmware or bootloader state is different than what is expected. Overall the core changes are mostly improving the clk driver writing experience. At the driver level, we have the usual collection of driver updates and new drivers for new SoCs. This time around the Qualcomm folks introduced a good handful of clk drivers for various parts of three or four SoCs. The SiFive folks added a new clk driver for their FU740 SoCs, coming in second on the diffstat and then Atmel AT91 and Amlogic SoCs had lots of work done after that for various new features. One last thing to note in the driver area is that the i.MX driver has gained a new binding to support SCU clks after being on the list for many months. It uses a two cell binding which is sort of rare in clk DT bindings. Beyond that we have the usual set of driver fixes and tweaks that come from more testing and finding out that some configuration was wrong or that a driver could support being built as a module. Summary: Core: - Add some trace points for clk_set_rate() "range" functions - Add hardware enable information to clk_summary debugfs - Replace clk-provider.h with of_clk.h when possible - Add devm variant of clk_notifier_register() - Add clk_hw_get_clk() to generate a struct clk from a struct clk_hw New Drivers: - Bindings for Canaan K210 SoC clks - Support for SiFive FU740 PRCI - Camera clks on Qualcomm SC7180 SoCs - GCC and RPMh clks on Qualcomm SDX55 SoCs - RPMh clks on Qualcomm SM8350 SoCs - LPASS clks on Qualcomm SM8250 SoCs Updates: - DVFS support for AT91 clk driver - Update git repo branch for Renesas clock drivers - Add camera (CSI) and video-in (VIN) clocks on Renesas R-Car V3U - Add RPC (QSPI/HyperFLASH) clocks on Renesas RZ/G2M, RZ/G2N, and RZ/G2E - Stop using __raw_*() I/O accessors in Renesas clk drivers - One more conversion of DT bindings to json-schema - Make i.MX clk-gate2 driver more flexible - New two cell binding for i.MX SCU clks - Drop of_match_ptr() in i.MX8 clk drivers - Add arch dependencies for Rockchip clk drivers - Fix i2s on Rockchip rk3066 - Add MIPI DSI clks on Amlogic axg and g12 SoCs - Support modular builds of Amlogic clk drivers - Fix an Amlogic Video PLL clock dependency - Samsung Kconfig dependencies updates for better compile test coverage - Refactoring of the Samsung PLL clocks driver - Small Tegra driver cleanups - Minor fixes to Ingenic and VC5 clk drivers - Cleanup patches to remove unused variables and plug memory leaks"* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits) dt-binding: clock: Document canaan,k210-clk bindings dt-bindings: Add Canaan vendor prefix clk: vc5: Use "idt,voltage-microvolt" instead of "idt,voltage-microvolts" clk: ingenic: Fix divider calculation with div tables clk: sunxi-ng: Make sure divider tables have sentinel clk: s2mps11: Fix a resource leak in error handling paths in the probe function clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9 clk: si5351: Wait for bit clear after PLL reset clk: at91: sam9x60: remove atmel,osc-bypass support clk: at91: sama7g5: register cpu clock clk: at91: clk-master: re-factor master clock clk: at91: sama7g5: do not allow cpu pll to go higher than 1GHz clk: at91: sama7g5: decrease lower limit for MCK0 rate clk: at91: sama7g5: remove mck0 from parent list of other clocks clk: at91: clk-sam9x60-pll: allow runtime changes for pll clk: at91: sama7g5: add 5th divisor for mck0 layout and characteristics clk: at91: clk-master: add 5th divisor for mck master clk: at91: sama7g5: allow SYS and CPU PLLs to be exported and referenced in DT dt-bindings: clock: at91: add sama7g5 pll defines clk: at91: sama7g5: fix compilation error ... List of files: /linux/drivers/clk/samsung/Kconfig

e44cdff05145b84293e3f424daa17e4f3ce0109c - clk: samsung: Allow compile testing of Exynos, S3C64xx and S5Pv210

Thu, 19 Nov 2020 17:45:09 +0100

clk: samsung: Allow compile testing of Exynos, S3C64xx and S5Pv210So far all Exynos, S3C64xx and S5Pv210 clock units were selected byrespective SOC/ARCH Kconfig option. On a kernel built for selectedSoCs, this allowed to build only limited set of matching clock drivers.However compile testing was not possible in such case as Makefile objectdepends on SOC/ARCH option.Add separate Kconfig options for each of them to be able to compiletest.Link: https://lore.kernel.org/r/20201119164509.754851-1-krzk@kernel.orgSigned-off-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Signed-off-by: Sylwester Nawrocki List of files: /linux/drivers/clk/samsung/Kconfig

124f035310adc781d91cdf0b7c6e4fb3c7e43e23 - clk: samsung: allow building the clkout driver as module

Tue, 10 Nov 2020 20:37:49 +0100

clk: samsung: allow building the clkout driver as moduleThe Exynos clock output driver can be built as module (it does not haveto be part of core init process) for better customization. Adding aKConfig entry allows also compile testing for build coverage.Signed-off-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Acked-by: Sylwester Nawrocki Link: https://lore.kernel.org/r/20201110193749.261367-1-krzk@kernel.org List of files: /linux/drivers/clk/samsung/Kconfig

ec8f24b7faaf3d4799a7c3f4c1b87f6b02778ad1 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 14:07:45 +0200

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux/drivers/clk/samsung/Kconfig

4d252fd5719bd047a178668aa09ee8bc9de85c7c - clk: samsung: Allow modular build of the Audio Subsystem CLKCON driver

Fri, 08 Jul 2016 16:15:00 +0200

clk: samsung: Allow modular build of the Audio Subsystem CLKCON driverAny clock dependencies can be properly handled with deferred probingso we can remove core_initcall and switch to a proper loadable platformdriver module.This change has been tested on Exynos4412 Odroid U3 based board.Signed-off-by: Sylwester Nawrocki Reviewed-by: Krzysztof Kozlowski Signed-off-by: Michael Turquette Link: lkml.kernel.org/r/1467987300-31450-1-git-send-email-s.nawrocki@samsung.com List of files: /linux/drivers/clk/samsung/Kconfig

85997a7cba7bc1578eb554e88f82023d85fb499a - clk: samsung: Don't build ARMv8 clock drivers on ARMv7

Tue, 16 Feb 2016 07:20:31 +0100

clk: samsung: Don't build ARMv8 clock drivers on ARMv7Currently the Exynos5433 (ARMv8 SoC) clock driver depends on ARCH_EXYNOSso it is built also on ARMv7. This does not bring any kind of benefit.There won't be a single kernel image for ARMv7 and ARMv8 SoCs (likemulti_v7 for ARMv7).Instead build clock drivers only for respective SoC's architecture.Signed-off-by: Krzysztof Kozlowski Acked-by: Sylwester Nawrocki Signed-off-by: Michael Turquette List of files: /linux/drivers/clk/samsung/Kconfig

215cd9674fa02e4b341e4568d20ef5fd6fab1b0b - clk: samsung: Enable COMPILE_TEST for Samsung clocks

Tue, 16 Feb 2016 07:20:30 +0100

clk: samsung: Enable COMPILE_TEST for Samsung clocksEnable the COMPILE_TEST to get build coverage of some of Samsung clockcontroller drivers. Still some of them will be built only ifappropriate SoC is chosen (like SOC_EXYNOS4415 or ARCH_S3C64XX).Signed-off-by: Krzysztof Kozlowski Reviewed-by: Javier Martinez Canillas Tested-by: Javier Martinez Canillas Reviewed-by: Andi Shyti Signed-off-by: Michael Turquette List of files: /linux/drivers/clk/samsung/Kconfig

b9e65ebc654dffeb77d8ef878bd6b2da30c55a94 - clk: Move vendor's Kconfig into CCF menu section

Thu, 28 Jan 2016 09:58:57 +0100

clk: Move vendor's Kconfig into CCF menu sectionMove all vendor's Kconfig into CCF menu section to preventnew drivers putting their Kconfig files in a wrong place.Some Kconfigs need to be modified at the same time to avoid buildwarnings.Signed-off-by: James Liao Acked-by: Sylwester Nawrocki [sboyd@codeaurora.org: Fix typos in commit message]Acked-by: Arnd Bergmann Signed-off-by: Stephen Boyd List of files: /linux/drivers/clk/samsung/Kconfig

1f4f2cfdb7145363aedb647a5ab6e7b658b379b9 - ARM: S3C24XX: move S3C24XX clock Kconfig options to Samsung clock Kconfig file

Thu, 08 May 2014 06:07:10 +0200

ARM: S3C24XX: move S3C24XX clock Kconfig options to Samsung clock Kconfig fileThis patch moves S3C24XX specific clock Kconfig options into"clk/samsung/Kconfig" and also removes COMMON_CLK selection from"mach-s3c24xx/Kconfig" as S3C24XX_COMMON_CLK is selecting it's dependency.CC: Ben Dooks CC: Kukjin Kim CC: Russell King Signed-off-by: Pankaj Dubey Signed-off-by: Tomasz Figa List of files: /linux/drivers/clk/samsung/Kconfig

4ce9b85e48f4dc79ba0bc696bbb944428a142bc7 - clk: samsung: add new Kconfig for Samsung common clock option

Thu, 08 May 2014 06:07:08 +0200

clk: samsung: add new Kconfig for Samsung common clock optionThis patch adds new Kconfig file for adding new COMMON_CLK_SAMSUNG option.Samsung platforms can select this for using common clock infrastructure.CC: Mike Turquette Signed-off-by: Pankaj Dubey Signed-off-by: Tomasz Figa List of files: /linux/drivers/clk/samsung/Kconfig