This patchseries adds support for the internal keyboard backlight of Macs with Apple's "Magic" keyboard (MacBookPro16,* and MacBookAir9,1), and also documents what names should be used for keyboard backlight leds in Documentation/leds/well-known-leds.txt. A separate driver for the purpose of backlight has been chosen because: 1. On the MacBookAir9,1 there is a USB device dedicated just for keyboard backlight by the name of Touchbar Backlight. Adding its support to any other hid-driver breaks the device. 2. Its now possible to use drm on the Touch Bar (similar to what macOS does). So, the Touch Bar drivers intended to be upstreamed before are no longer used. https://lore.kernel.org/all/868AA58D-2399-4E4A-A6C6-73F88DB13992@xxxxxxxx/ The driver that supports drm is still out of tree and yet to be submitted. Orlando Chamberlain (2): Documentation: leds: standardise keyboard backlight led names HID: hid-apple-magic-backlight: Add driver for keyboard backlight on internal Magic Keyboards Documentation/leds/well-known-leds.txt | 8 ++ MAINTAINERS | 6 ++ drivers/hid/Kconfig | 13 +++ drivers/hid/Makefile | 1 + drivers/hid/hid-apple-magic-backlight.c | 120 ++++++++++++++++++++++++ 5 files changed, 148 insertions(+) create mode 100644 drivers/hid/hid-apple-magic-backlight.c -- 2.39.2
