This series adds initial support for the Samsung S2MPG10 PMIC using the MFD framework. This is a PMIC for mobile applications and is used on the Google Pixel 6 and 6 Pro (oriole / raven). *** dependency note *** To compile, this depends on the Samsung ACPM driver in Linux next with the following additional patches: https://lore.kernel.org/all/20250324-acpm-atomic-v2-0-7d87746e1765@xxxxxxxxxx/ https://lore.kernel.org/all/20250319-acpm-fixes-v2-0-ac2c1bcf322b@xxxxxxxxxx/ https://lore.kernel.org/all/20250327-acpm-children-v1-0-0afe15ee2ff7@xxxxxxxxxx/ *** dependency note end *** +++ Kconfig update +++ There is a Kconfig symbol update in this series, because the existing Samsung S2M driver has been split into core and transport (I2C & ACPM) parts. CONFIG_MFD_SEC_CORE is now truly a core driver, and the I2C code that was part of it is now enabled via CONFIG_MFD_SEC_I2C. This was necessary because unlike the other S2M PMICs, S2MPG10 doesn't talk via I2C, but via the Samsung ACPM firmware. +++ Kconfig update end +++ This series must be applied in-order, due to interdependencies of some of the patches. There are also various cleanup patches to the S2M drivers. I've kept them ordered as: * DT bindings (patches 1 ... 3) * s2m mfd prep for adding S2MPG10 support (patches 4 ... 7) * split S2M mfd driver into s2m-core and s2m-i2c, including the kconfig symbol update (patch 8) * S2MPG10 core driver (patch 9) * s2m mfd driver cleanup patches (patches 10 ... 23) * S2MPG10 clock driver (patch 24) * s2m RTC prep for adding S2MPG10 (patch 25 ... 26) * S2MPG10 RTC driver (patch 27) * s2m RTC cleanup patches (patches 28 ... 31) I realise these are many, but since some prep-work was required to be able to add S2MPG anyway, I wanted to get the cleanup patches in as well :-) Let me know if I should postpone them to a later date instead. The S2MPG10 includes buck converters, various LDOs, power meters, RTC, clock outputs, and additional GPIOs interfaces. This series adds support in the top-level device driver, and for the RTC and clock. Importantly, having the RTC driver allows to do a proper reset of the system. Drivers or driver updates for the other components will be added in future patches. This will need a DT update for Oriole / Raven to enable this device. I will send that out separately. Cheers, Andre' Signed-off-by: André Draszik <andre.draszik@xxxxxxxxxx> --- Changes in v4: - various updates to sec-acpm (patch 9, Lee) - cache enum type in patch 25 (Krzysztof) - collect tags - Link to v3: https://lore.kernel.org/r/20250403-s2mpg10-v3-0-b542b3505e68@xxxxxxxxxx Changes in v3: - Krzysztof: - keep 'regulators' subnode required even for s2mpg10 - drop '$ref' and 'unevaluatedProperties' from pmic subnode, use 'additionalProperties' instead - add some regulators to examples since s2mpg10 requires them as of v3 - sec-acpm: - use an enum for struct sec_acpm_bus_context::type - consistent name space for all functions sec_pmic_acpm_... to be similar to i2c and consistent in this file - Link to v2: https://lore.kernel.org/r/20250328-s2mpg10-v2-0-b54dee33fb6b@xxxxxxxxxx Changes in v2: - Rob: - make PMIC node a child of ACPM, and all related changes (binding, driver) - Krzysztof: - merge defconfig updates into patch changing the symbols (patch 8) - split MODULE_AUTHOR update into a separate patch - better alignment fix (patch 11) - merge two s2dos05/s2mpu05 related patches into one (patch 14) - myself: - keep PMIC DT parsing in core, not in transport driver - several updates in sec-acpm.c, see separate entries in patch 9 - fix typo in patch 17 - collect tags - Link to v1: https://lore.kernel.org/r/20250323-s2mpg10-v1-0-d08943702707@xxxxxxxxxx --- André Draszik (32): dt-bindings: mfd: samsung,s2mps11: add s2mpg10 dt-bindings: clock: samsung,s2mps11: add s2mpg10 dt-bindings: firmware: google,gs101-acpm-ipc: add PMIC child node mfd: sec-core: Drop non-existing forward declarations mfd: sec: Sort includes alphabetically mfd: sec: Update includes to add missing and remove superfluous ones mfd: sec: Move private internal API to internal header mfd: sec: Split into core and transport (i2c) drivers mfd: sec: Add support for S2MPG10 PMIC mfd: sec: Merge separate core and irq modules mfd: sec-common: Fix multiple trivial whitespace issues mfd: sec-i2c: Sort struct of_device_id entries and the device type switch mfd: sec: Use dev_err_probe() where appropriate mfd: sec-i2c: s2dos05/s2mpu05: Use explicit regmap config and drop default mfd: sec-irq: s2dos05 doesn't support interrupts mfd: sec-common: Don't ignore errors from sec_irq_init() mfd: sec-i2c: Rework platform data and regmap instantiating mfd: sec: Change device_type to int mfd: sec: Don't compare against NULL / 0 for errors, use ! mfd: sec-common: Use sizeof(*var), not sizeof(struct type_of_var) mfd: sec-common: Convert to using MFD_CELL macros mfd: sec-irq: Convert to using REGMAP_IRQ_REG() macros mfd: sec: Add myself as module author clk: s2mps11: add support for S2MPG10 PMIC clock rtc: s5m: cache device type during probe rtc: s5m: prepare for external regmap rtc: s5m: add support for S2MPG10 RTC rtc: s5m: fix a typo: peding -> pending rtc: s5m: switch to devm_device_init_wakeup rtc: s5m: replace regmap_update_bits with regmap_clear/set_bits rtc: s5m: replace open-coded read/modify/write registers with regmap helpers MAINTAINERS: add myself as reviewer for Samsung S2M MFD .../devicetree/bindings/clock/samsung,s2mps11.yaml | 1 + .../bindings/firmware/google,gs101-acpm-ipc.yaml | 35 ++ .../devicetree/bindings/mfd/samsung,s2mps11.yaml | 26 +- MAINTAINERS | 3 +- arch/arm/configs/exynos_defconfig | 2 +- arch/arm/configs/multi_v7_defconfig | 2 +- arch/arm/configs/pxa_defconfig | 2 +- arch/arm64/configs/defconfig | 2 +- drivers/clk/clk-s2mps11.c | 8 + drivers/mfd/Kconfig | 35 +- drivers/mfd/Makefile | 5 +- drivers/mfd/sec-acpm.c | 442 +++++++++++++++++++ drivers/mfd/sec-common.c | 301 +++++++++++++ drivers/mfd/sec-core.c | 481 --------------------- drivers/mfd/sec-core.h | 23 + drivers/mfd/sec-i2c.c | 239 ++++++++++ drivers/mfd/sec-irq.c | 460 +++++++------------- drivers/rtc/rtc-s5m.c | 197 ++++++--- include/linux/mfd/samsung/core.h | 7 +- include/linux/mfd/samsung/irq.h | 103 +++++ include/linux/mfd/samsung/rtc.h | 37 ++ include/linux/mfd/samsung/s2mpg10.h | 454 +++++++++++++++++++ 22 files changed, 2001 insertions(+), 864 deletions(-) --- base-commit: f58dd835f82a5dda6c9d3895ee6f15016431fb1f change-id: 20250321-s2mpg10-ef5d1ebd3043 Best regards, -- André Draszik <andre.draszik@xxxxxxxxxx>
