diff options
Diffstat (limited to 'driver/charger/rt946x.c')
| -rw-r--r-- | driver/charger/rt946x.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/driver/charger/rt946x.c b/driver/charger/rt946x.c index 3d5722ae09..d38690892a 100644 --- a/driver/charger/rt946x.c +++ b/driver/charger/rt946x.c @@ -1114,6 +1114,24 @@ int mt6370_db_set_voltages(int vbst, int vpos, int vneg) return rv; } +/* MT6370 BACKLIGHT LED */ + +int mt6370_backlight_set_dim(uint16_t dim) +{ + int rv; + + /* datasheet suggests that update BLDIM2 first then BLDIM */ + rv = rt946x_write8(MT6370_BACKLIGHT_BLDIM2, dim & MT6370_MASK_BLDIM2); + + if (rv) + return rv; + + rv = rt946x_write8(MT6370_BACKLIGHT_BLDIM, + (dim >> MT6370_SHIFT_BLDIM_MSB) & MT6370_MASK_BLDIM); + + return rv; +} + /* MT6370 RGB LED */ int mt6370_led_set_dim_mode(enum mt6370_led_index index, |