diff options
| author | YH Huang <yh.huang@mediatek.com> | 2015-07-31 17:11:07 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-01-22 19:37:54 +0100 |
| commit | 1fcee36ad7a52d81d8a47d639e81de836d951535 (patch) | |
| tree | 5c87ba6f2ae4a831952568d5c1354c855858e77a /src | |
| parent | 9733ba5bd0ca97efb08141f623f198b9c87e6d0f (diff) | |
google/oak: Configure backlight control pins
Since backlight is controlled in depthcharge, we only configure
control pins as output pin and set them power-off in the coreboot
stage.
BRANCH=none
BUG=none
TEST=Saw DEV screen during boot process.
Change-Id: I3ed95e133417194ec8e774f42770bc61d879295f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e9628781801943903ba99ba1071aa374c6fc0754
Original-Change-Id: Ifd101f3e08698561d8516d83bc7d502d210e3b66
Original-Signed-off-by: YH Huang <yh.huang@mediatek.com>
Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/292686
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/13093
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src')
| -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) |