diff options
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/oak/mainboard.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/mainboard/google/oak/mainboard.c b/src/mainboard/google/oak/mainboard.c index 8dde2ef186..614c965ae6 100644 --- a/src/mainboard/google/oak/mainboard.c +++ b/src/mainboard/google/oak/mainboard.c @@ -67,9 +67,37 @@ static void configure_audio(void) mt_pll_set_aud_div(48 * KHz); } +/* Setup backlight control pins as output pin and power-off by default */ +static void configure_backlight(void) +{ + switch (board_id()) { + case 0: + gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */ + mt6391_gpio_output(MT6391_KP_ROW3, 0); /* PANEL_POWER_EN_6397 */ + break; + case 1: + case 2: + gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */ + gpio_output(PAD_PCM_TX, 0); /* PANEL_POWER_EN */ + break; + case 3: + gpio_output(PAD_UCTS2, 0); /* PANEL_LCD_POWER_EN */ + gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */ + gpio_output(PAD_PCM_TX, 0); /* PANEL_POWER_EN */ + break; + case 4: + default: + gpio_output(PAD_SRCLKENAI, 0); /* PANEL_LCD_POWER_EN */ + gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */ + gpio_output(PAD_PCM_TX, 0); /* PANEL_POWER_EN */ + break; + } +} + static void mainboard_init(device_t dev) { configure_audio(); + configure_backlight(); } static void mainboard_enable(device_t dev) |