Apple SoCs come with a 2-wire interface named DWI. On some iPhones, iPads and iPod touches the backlight controller is connected via this interface. This series adds a backlight driver for backlight controllers connected this way. Changes since v3: - $ref to common.yaml in bindings - (and then additionalProperties is changed to unevaluatedProperties) - Use hex everywhere in bindings example - Use sizeof(*dwi_bl) instead of the type of the struct when doing devm_kzalloc() - Use devm_platform_get_and_ioremap_resource() in driver - Fix sorting in drivers/video/backlight/Makefile - In drivers/video/backlight/Kconfig, move config to right after BACKLIGHT_APPLE - Explain this driver being completely different from apple_bl v3: https://lore.kernel.org/asahi/20241209075908.140014-1-towinchenmi@xxxxxxxxx/T Changes since v2: - Add missing includes in driver - Fix file path in MAINTAINERS v2: https://lore.kernel.org/asahi/20241207130433.30351-1-towinchenmi@xxxxxxxxx/T Changes since v1: - Fixed dt-bindings $id. - Make power-domains an optional property in dt-bindings. - Added missing error checking after devm_ioremap_resource() in dwi_bl_probe(). v1: https://lore.kernel.org/asahi/20241206172735.4310-1-towinchenmi@xxxxxxxxx/T Nick Chan --- Nick Chan (3): dt-bindings: leds: backlight: apple,dwi-bl: Add Apple DWI backlight backlight: dwi_bl: Add Apple DWI backlight driver MAINTAINERS: Add entries for Apple DWI backlight controller .../bindings/leds/backlight/apple,dwi-bl.yaml | 57 ++++++++ MAINTAINERS | 2 + drivers/video/backlight/Kconfig | 12 ++ drivers/video/backlight/Makefile | 1 + drivers/video/backlight/dwi_bl.c | 122 ++++++++++++++++++ 5 files changed, 194 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/backlight/apple,dwi-bl.yaml create mode 100644 drivers/video/backlight/dwi_bl.c base-commit: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 -- 2.47.1
