diff options
| author | Bo-Chen Chen <rex-bc.chen@mediatek.com> | 2022-12-07 19:09:57 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-12-16 17:04:35 +0000 |
| commit | f57155bca484796880ec70b7d089a95cbf0589d2 (patch) | |
| tree | 323f5fceee91f9b331b56ea2fa83e7a1b8771377 /src/mainboard/google/geralt/chromeos.c | |
| parent | de4727aecccfe82ab43b58dada013e83fbfcc409 (diff) | |
mb/google/geralt: Pass GPIOs to allow backlight control in payloads
There are two ways to control backlight in geralt:
1. MIPI/eDP panel => control backlight via the GPIOs.
(`backlight chip enable` and `PWM dimming control`)
2. eDP OLED panel => enable backlight via `backlight chip enable` and
control dimming over AUX.
For MIPI/eDP panels(#1), both "backlight enable" and "PWM control" GPIOs
will be passed from coreboot. For eDP OLED panel(#2), only the
"backlight enable" GPIO will be passed. If depthcharge successfully gets
the GPIOs, it will use them to control backlight.
BUG=b:244208960
TEST=test firmware display pass for eDP and MIPI panels on MT8188 EVB
Change-Id: I866fa219722241008e2b0d566b29edf2f6d9321f
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70744
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/geralt/chromeos.c')
| -rw-r--r-- | src/mainboard/google/geralt/chromeos.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/google/geralt/chromeos.c b/src/mainboard/google/geralt/chromeos.c index 1723e6bfa8..83c0ddcc27 100644 --- a/src/mainboard/google/geralt/chromeos.c +++ b/src/mainboard/google/geralt/chromeos.c @@ -6,6 +6,7 @@ #include <security/tpm/tis.h> #include "gpio.h" +#include "panel.h" void setup_chromeos_gpios(void) { @@ -28,6 +29,8 @@ void fill_lb_gpios(struct lb_gpios *gpios) {GPIO_EN_SPKR.id, ACTIVE_HIGH, -1, "speaker enable"}, }; lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); + + fill_lp_backlight_gpios(gpios); } int tis_plat_irq_status(void) |