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| author | Keith Short <keithshort@chromium.org> | 2021-01-18 14:47:52 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-02-01 19:26:59 +0000 |
| commit | 194b5d989ae7545107c4fb664e58c17027facd68 (patch) | |
| tree | 8f1dc59e06aca13b84faca7a7abaf2daf57584ae /zephyr/Kconfig.keyboard | |
| parent | eedba51b085748157b3f47ce2e0a80aedfb88a5d (diff) | |
| download | chrome-ec-194b5d989ae7545107c4fb664e58c17027facd68.tar.gz | |
zephyr: Add keyboard backlight support
Add KConfig options for keyboard backlight support.
BUG=b:17760430, b:177851031
BRANCH=none
TEST=make buildall, zmake testall
TEST=Run "kblight" command on Volteer
Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: I7da36a7a685285562152e560f3dbe5da1b1ba04f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2636483
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'zephyr/Kconfig.keyboard')
| -rw-r--r-- | zephyr/Kconfig.keyboard | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/zephyr/Kconfig.keyboard b/zephyr/Kconfig.keyboard index 5c4b161148..5faab1f444 100644 --- a/zephyr/Kconfig.keyboard +++ b/zephyr/Kconfig.keyboard @@ -63,4 +63,28 @@ config PLATFORM_EC_CONSOLE_CMD_KEYBOARD_8042 kblog - Print or toggle keyboard event log (current disabled) typematic - Get/set typematic delays +choice + prompt "Keyboard backlight" + optional + help + Enable support for EC control of a keyboard backlight. This enables + the "kblight" console command for manual control of the keyboard + backlight. This also enables the EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT and + EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT host commands for automatic control + by the AP. + + TODO: support CONFIG_IO_EXPANDER_IT8801 driver which provides + PWM keyboard support. + +config PLATFORM_EC_PWM_KBLIGHT + bool "PWM keyboard backlight" + depends on PLATFORM_EC_PWM + help + Enables a PWM-controlled keyboard backlight controlled by a PWM signal + connected directly to the EC chipset. The board files must define + the C reference PWM_CH_KBLIGHT to the PWM channel used for the + keyboard backlight control. + +endchoice # Keyboard backlight + endif # PLATFORM_EC_KEYBOARD |