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| author | Daisuke Nojiri <dnojiri@chromium.org> | 2019-04-02 10:34:54 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-04-04 23:09:25 -0700 |
| commit | ed230bf3f5ab05a2e09d4eb88d66cff4b3a856b2 (patch) | |
| tree | 2313c66a26e546e9457ea54c180517357b9a69c0 /include/config.h | |
| parent | f4d798a1ee801abc0f8cfdd2f1a1115b9050f7f0 (diff) | |
| download | chrome-ec-ed230bf3f5ab05a2e09d4eb88d66cff4b3a856b2.tar.gz | |
kblight: Remove dependency on PWM
Keyboard backlight can be controlled either by PWM or an external
controller. This patch decouples keyboard backlight common code and
PWM based backlight control.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
BUG=none
BRANCH=Nami
TEST=Verify keyboard backlight can be adjusted on Ekko.
Change-Id: I332b01a2a2b15bd37ce385b6c30591c90f078dfc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1549476
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit e879713cee3212b4afffb3f0dd3c4dfbf8237c4a)
Reviewed-on: https://chromium-review.googlesource.com/1549606
Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'include/config.h')
| -rw-r--r-- | include/config.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/config.h b/include/config.h index 53d983f12b..5a62cb5728 100644 --- a/include/config.h +++ b/include/config.h @@ -2693,10 +2693,17 @@ #undef CONFIG_PWM_DISPLIGHT /* + * Support keyboard backlight control + * + * You need to define board_kblight_init unless CONFIG_PWM_KBLIGHT is used. + * For example, lm3509 can be registered as a driver in board_kblight_init. + */ +#undef CONFIG_KEYBOARD_BACKLIGHT + +/* * Support PWM output to keyboard backlight * - * Optionally, lm3509 can be used as a keyboard backlight controller. - * TODO: Create CONFIG_KEYBOARD_BACKLIGHT to allow lm3509 is used without PWM. + * This implies CONFIG_KEYBOARD_BACKLIGHT. */ #undef CONFIG_PWM_KBLIGHT @@ -4391,4 +4398,8 @@ #define CONFIG_SLEEP_TIMEOUT_MS 10000 #endif +#ifdef CONFIG_PWM_KBLIGHT +#define CONFIG_KEYBOARD_BACKLIGHT +#endif + #endif /* __CROS_EC_CONFIG_H */ |