Hi folks, This is a v2 of the series to add support for protected PMU registers found on gs101 and derivative SoCs. In v2 it has been re-worked to be based on a regmap abstraction that I think leads to a much neater overall solution. The advantage of the regmap abstraction is that most leaf drivers that read/write PMU registers need minimal changes. Example of Exynos drivers that require PMU register access are: * watchdog * usb phy * mipi phy * ufs phy This series has been tested on Pixel 6 / gs101. If the various maintainers/ contributors of other Exynos SoCs like exynos850, exynosautov9 etc can test these patches on your respective systems that would be most appreciated! The expectation is this series would be merged via Krzysztofs Samsung Exynos tree. regards, Peter Changes since v1: - Refactor to use custom regmap to abstract SMC register access (Sam / Guenter) - Add deferred probing support (Saravana / Krzysztof) v1 lore: https://lore.kernel.org/all/20240122225710.1952066-1-peter.griffin@xxxxxxxxxx/ Peter Griffin (2): soc: samsung: exynos-pmu: Add regmap support for SoCs that protect PMU regs watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU regs drivers/soc/samsung/exynos-pmu.c | 227 ++++++++++++++++++++++++- drivers/watchdog/Kconfig | 1 - drivers/watchdog/s3c2410_wdt.c | 9 +- include/linux/soc/samsung/exynos-pmu.h | 10 ++ 4 files changed, 241 insertions(+), 6 deletions(-) -- 2.43.0.429.g432eaa2c6b-goog
