Hi, The ChromiumOS EC PWM host command protocol supports specifying the requested PWM by type rather than channel. [1] This series adds support for specifying PWM by type rather than channel number in the pwm-cros-ec driver, which abstracts the node definitions from the actual hardware configuration from the kernel perspective, aligns the API with the one used by the bootloader, and allows removing some dtsi overrides. Tested on a sc7180-trogdor board, build tested on x86. Changes from v3: (https://patchwork.kernel.org/project/chrome-platform/list/?series=631131) - actually reworded patch 2 commit description - reworked patch 2 to use of_device_is_compatible() instead of compatible .data Changes from v2: (https://patchwork.kernel.org/project/chrome-platform/list/?series=627837) - reworded patch 2 commit description - reworked the driver and dt documentation to use a new compatible rather than boolean property - dropped the comment about build test only, tested on actual hardware (trogdor), build test on x86 (with CONFIG_OF=n). Changes from v1: (https://patchwork.kernel.org/project/chrome-platform/list/?series=625182) - fixed the dt include file license - fixed the property name (s/_/-/) - rebased on current linus tree (few dts files changed from a soc tree pull, so patch 4 needs a recent base to apply correctly) [1] https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform/ec/common/pwm.c;l=24 [2] https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform/depthcharge/src/drivers/ec/cros/ec.c;l=1271-1273 Fabio Baltieri (4): dt-bindings: add mfd/cros_ec definitions pwm: pwm-cros-ec: add channel type support dt-bindings: update google,cros-ec-pwm documentation arm64: dts: address cros-ec-pwm channels by type .../bindings/pwm/google,cros-ec-pwm.yaml | 9 +- .../mt8183-kukui-jacuzzi-fennel-sku1.dts | 4 +- .../dts/mediatek/mt8183-kukui-jacuzzi.dtsi | 4 +- .../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 1 + .../boot/dts/qcom/sc7180-trogdor-coachz.dtsi | 4 - arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 9 +- .../qcom/sc7280-herobrine-herobrine-r0.dts | 7 +- .../arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 7 +- .../arm64/boot/dts/qcom/sc7280-idp-ec-h1.dtsi | 4 +- arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 7 +- .../boot/dts/rockchip/rk3399-gru-bob.dts | 4 - .../dts/rockchip/rk3399-gru-chromebook.dtsi | 5 +- .../boot/dts/rockchip/rk3399-gru-kevin.dts | 4 - arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 1 + drivers/pwm/pwm-cros-ec.c | 82 +++++++++++++++---- include/dt-bindings/mfd/cros_ec.h | 18 ++++ 16 files changed, 121 insertions(+), 49 deletions(-) create mode 100644 include/dt-bindings/mfd/cros_ec.h -- 2.35.1.1178.g4f1659d476-goog
