diff options
| -rw-r--r-- | board/samus/panel.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/board/samus/panel.c b/board/samus/panel.c index dacb0bcf3e..b0cb77a6d5 100644 --- a/board/samus/panel.c +++ b/board/samus/panel.c @@ -19,6 +19,15 @@ #define LP8555_REG_CONFIG 0x10 #define LP8555_REG_CONFIG_MODE_MASK 0x03 #define LP8555_REG_CONFIG_MODE_PWM 0x00 +#define LP8555_REG_CURRENT 0x11 +#define LP8555_REG_CURRENT_MAXCURR_5MA 0x00 +#define LP8555_REG_CURRENT_MAXCURR_10MA 0x01 +#define LP8555_REG_CURRENT_MAXCURR_15MA 0x02 +#define LP8555_REG_CURRENT_MAXCURR_20MA 0x03 +#define LP8555_REG_CURRENT_MAXCURR_23MA 0x04 +#define LP8555_REG_CURRENT_MAXCURR_25MA 0x05 +#define LP8555_REG_CURRENT_MAXCURR_30MA 0x06 +#define LP8555_REG_CURRENT_MAXCURR_50MA 0x07 /** * Enable PWM mode in backlight controller and turn it on. @@ -35,6 +44,10 @@ static void lp8555_enable_pwm_mode(void) i2c_write8(I2C_PORT_BACKLIGHT, I2C_ADDR_BACKLIGHT, LP8555_REG_CONFIG, reg); + /* Set max LED current to 23mA. */ + i2c_write8(I2C_PORT_BACKLIGHT, I2C_ADDR_BACKLIGHT, + LP8555_REG_CURRENT, LP8555_REG_CURRENT_MAXCURR_23MA); + /* Power on. */ i2c_read8(I2C_PORT_BACKLIGHT, I2C_ADDR_BACKLIGHT, LP8555_REG_COMMAND, ®); |