Hello, This patchset is a follow-up of my work on adding runtime PM support to Exynos pin controller driver: http://www.spinics.net/lists/arm-kernel/msg550161.html Runtime PM support itself needs a bit more discussion, so lets first focus on the prerequisites. In case of Exynos pin controller driver it is a pad retention control. In current code it was handled by machine and PMU code and had no relation to what pin controller driver does. This patch series moves pad retention control to pin controller driver. While implementing it, I also did a little cleanup of both Exynos PMU and pin controller drivers. Exynos PMU driver now provides a convenient function to get PMU regmap from other Exynos drivers. Patch #1 provides a new interface to get Exynos PMU regmap, which is used by the patch #11. Patches 2-10 are additional cleanups to the code I was modyfying. Patches 10-12 implements the move of the retention control and patch #13 is another cleanup, which is possible after removing dependency to platform PM code. Patches are based on linux-next from 2017.01.19 with Exynos4415 support removal patch applied: https://lkml.org/lkml/2017/1/14/137 Changelog: v3: - fixed return value from exynos_get_pmu_regmap stub (pointed by Tomasz Figa) - removed unnecessary regmap include in pmu.h - fixed comments in retention control structure description - simplified exynos_retention_disable function by moving samsung_retention_ctrl structure to separate variable - collected Acks v2: https://www.spinics.net/lists/arm-kernel/msg555048.html - reworked exynos_get_pmu_regmap() function and moved to Exynos PMU driver, now it doesn't depend on driver probe order thus doesn't need to defer probing of pinctrl driver if PMU has not yet been probed - collected Acks, minor fixes according to review comments v1: https://www.spinics.net/lists/arm-kernel/msg554487.html - removed the need to add PMU phandles to all pin controller nodes, so old DTBs are properly supported. This has been achieved by getting PMU regmap from the "exynos-pmu" device of fixed name. - more cleanup in Exynos pin controller driver: added missing entries in DT documentation, removed "memory allocation failed" messages and added initconst annotations. - added support for s5pv210. - reworked retention control code to be simpler and ready for adding Exynos5433 support. v0: http://www.spinics.net/lists/arm-kernel/msg550161.html - initial version - part of "Runtime PM for Exynos pin controller driver" patchset Patch summary: Marek Szyprowski (13): soc: samsung: pmu: Provide global function to get PMU regmap soc: samsung: pmu: Use of_device_get_match_data helper soc: samsung: pmu: Remove messages for failed memory allocation pinctrl: samsung: Document Exynos3250 SoC support pinctrl: samsung: Remove messages for failed memory allocation pinctrl: samsung: Fix samsung_pinctrl_create_functions return value pinctrl: samsung: Add missing initconst annotation pinctrl: samsung: Remove dead code pinctrl: samsung: Use generic of_device_get_match_data helper pinctrl: samsung: Add infrastructure for pin-bank retention control pinctrl: samsung: Move retention control from mach-exynos to the pinctrl driver pinctrl: samsung: Move retention control from mach-s5pv210 to the pinctrl driver pinctrl: samsung: Replace syscore ops with standard platform device pm_ops .../bindings/pinctrl/samsung-pinctrl.txt | 1 + arch/arm/mach-exynos/suspend.c | 64 ------ arch/arm/mach-s5pv210/pm.c | 7 - arch/arm/mach-s5pv210/regs-clock.h | 4 - drivers/pinctrl/samsung/pinctrl-exynos.c | 231 +++++++++++++++++++-- drivers/pinctrl/samsung/pinctrl-s3c64xx.c | 12 +- drivers/pinctrl/samsung/pinctrl-samsung.c | 123 ++++------- drivers/pinctrl/samsung/pinctrl-samsung.h | 42 ++++ drivers/soc/samsung/exynos-pmu.c | 22 +- include/linux/soc/samsung/exynos-pmu.h | 10 + 10 files changed, 322 insertions(+), 194 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |