diff options
| author | Yilun Lin <yllin@google.com> | 2019-04-19 13:27:39 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-05-12 19:27:41 -0700 |
| commit | 3e2c751048cc3d4b84373b07013e7c904eb4a5d3 (patch) | |
| tree | e76871c42788245385ce26ef76eaca213947fc6f /driver | |
| parent | be5ef157cf823126acb60aabc8595e1d8ac1b77e (diff) | |
| download | chrome-ec-3e2c751048cc3d4b84373b07013e7c904eb4a5d3.tar.gz | |
charger/rt946x,krane: Enable backlight power.
Krane's backlight power and PWM is controlled by mt6370.
TEST=See the backlight is enabled on krane.
BUG=b:131125903
BRANCH=None
Change-Id: I9276a73d1a36e6b1eb64b39d7e9e988cda164ada
Signed-off-by: Yilun Lin <yllin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1575051
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/charger/rt946x.c | 9 | ||||
| -rw-r--r-- | driver/charger/rt946x.h | 20 |
2 files changed, 29 insertions, 0 deletions
diff --git a/driver/charger/rt946x.c b/driver/charger/rt946x.c index 984c1d1d4f..b9518eec42 100644 --- a/driver/charger/rt946x.c +++ b/driver/charger/rt946x.c @@ -458,6 +458,15 @@ static int rt946x_init_setting(void) if (rv) return rv; +#ifdef CONFIG_CHARGER_MT6370_BACKLIGHT + rt946x_write8(MT6370_BACKLIGHT_BLEN, + MT6370_MASK_BLED_EXT_EN | MT6370_MASK_BLED_EN | + MT6370_MASK_BLED_1CH_EN | MT6370_MASK_BLED_2CH_EN | + MT6370_MASK_BLED_3CH_EN | MT6370_MASK_BLED_4CH_EN); + rt946x_update_bits(MT6370_BACKLIGHT_BLPWM, MT6370_MASK_BLPWM_BLED_PWM, + BIT(MT6370_SHIFT_BLPWM_BLED_PWM)); +#endif + return rt946x_init_irq(); } diff --git a/driver/charger/rt946x.h b/driver/charger/rt946x.h index f4f37975ad..29e36f0ac9 100644 --- a/driver/charger/rt946x.h +++ b/driver/charger/rt946x.h @@ -493,6 +493,26 @@ #define MT6370_MASK_DB_FREQ_PM 1 #define MT6370_MASK_DB_PERIODIC_MODE 1 +/* ========== BLEN 0xA0 (mt6370) ============ */ +#define MT6370_SHIFT_BLED_EXT_EN 7 +#define MT6370_SHIFT_BLED_EN 6 +#define MT6370_SHIFT_BLED_1CH_EN 5 +#define MT6370_SHIFT_BLED_2CH_EN 4 +#define MT6370_SHIFT_BLED_3CH_EN 3 +#define MT6370_SHIFT_BLED_4CH_EN 2 + +#define MT6370_MASK_BLED_EXT_EN BIT(MT6370_SHIFT_BLED_EXT_EN) +#define MT6370_MASK_BLED_EN BIT(MT6370_SHIFT_BLED_EN) +#define MT6370_MASK_BLED_1CH_EN BIT(MT6370_SHIFT_BLED_1CH_EN) +#define MT6370_MASK_BLED_2CH_EN BIT(MT6370_SHIFT_BLED_2CH_EN) +#define MT6370_MASK_BLED_3CH_EN BIT(MT6370_SHIFT_BLED_3CH_EN) +#define MT6370_MASK_BLED_4CH_EN BIT(MT6370_SHIFT_BLED_4CH_EN) + +/* ========== BLPWM 0xA2 (mt6370) ============ */ +#define MT6370_SHIFT_BLPWM_BLED_PWM 7 + +#define MT6370_MASK_BLPWM_BLED_PWM BIT(MT6370_SHIFT_BLPWM_BLED_PWM) + /* ========== CHGSTAT2 0xD1 (mt6370) ============ */ #ifdef CONFIG_CHARGER_MT6370 #define MT6370_SHIFT_CHG_VBUSOV_STAT 7 |