diff options
| author | Furquan Shaikh <furquan@google.com> | 2020-08-05 14:54:39 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2020-08-06 19:09:12 +0000 |
| commit | 5474f8e3cf54dc9d9eb699de1ff0e3fdbe66dfe6 (patch) | |
| tree | 8d7d3a6dc27e2b4a28f886847399ec8c72abb67b /src/mainboard/google/zork/variants/baseboard | |
| parent | cc6c41f8d8b6880a7ad4947599350758cd18f85f (diff) | |
mb/google/zork: Add touchscreen power control
This change adds support for touchscreen power control using:
* GPIO_90 for trembyle based boards
* GPIO_32 for dalboz based boards
By default, baseboard tables configure these GPIOs as PAD_GPO driven
low and override trees expose these pads as enable_gpio to be used by
ACPI power resource.
In order to support pre-v3.6 boards, override tables configure these
pads as PAD_NC and drop the enable_gpio setting from device tree based
on board version.
BUG=b:161935640, b:162747210
Change-Id: Iba5e36b65b44ea11613b4d5fc8f13ce6433f83ab
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44193
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/zork/variants/baseboard')
3 files changed, 6 insertions, 4 deletions
diff --git a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_dalboz.c b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_dalboz.c index 268c70fe61..4654ff718a 100644 --- a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_dalboz.c +++ b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_dalboz.c @@ -65,8 +65,8 @@ static const struct soc_amd_gpio gpio_set_stage_ram[] = { PAD_NF(GPIO_30, ESPI_CS_L, PULL_NONE), /* EC_AP_INT_ODL (Sensor Framesync) */ PAD_GPI(GPIO_31, PULL_NONE), - /* TP */ - PAD_NC(GPIO_32), + /* EN_PWR_TOUCHSCREEN */ + PAD_GPO(GPIO_32, LOW), /* GPIO_33 - GPIO_39: Not available */ /* NVME_AUX_RESET_L */ PAD_GPO(GPIO_40, HIGH), diff --git a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_trembyle.c b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_trembyle.c index 1fb0cde30a..5e61ad8630 100644 --- a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_trembyle.c +++ b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_trembyle.c @@ -111,8 +111,8 @@ static const struct soc_amd_gpio gpio_set_stage_ram[] = { PAD_NF(GPIO_88, EMMC_DATA5, PULL_NONE), /* EN_DEV_BEEP_L */ PAD_GPO(GPIO_89, HIGH), - /* Testpoint */ - PAD_NC(GPIO_90), + /* EN_PWR_TOUCHSCREEN */ + PAD_GPO(GPIO_90, LOW), /* EN_SPKR */ PAD_GPO(GPIO_91, LOW), /* CLK_REQ0_L - WIFI */ diff --git a/src/mainboard/google/zork/variants/baseboard/ramstage_common.c b/src/mainboard/google/zork/variants/baseboard/ramstage_common.c index a55bdf2c81..1604588c11 100644 --- a/src/mainboard/google/zork/variants/baseboard/ramstage_common.c +++ b/src/mainboard/google/zork/variants/baseboard/ramstage_common.c @@ -251,5 +251,7 @@ void variant_touchscreen_update(void) continue; cfg->reset_gpio.active_low = 0; + cfg->enable_gpio.pin_count = 0; + cfg->enable_gpio.pins[0] = 0; } } |