diff options
| author | Qinghong Zeng <zengqinghong@huaqin.corp-partner.google.com> | 2024-03-16 15:13:17 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-03-22 13:38:11 +0000 |
| commit | b417cb88df515efc60b2b016b8e138d438fd7f5d (patch) | |
| tree | 20075ba58d10eb891056e167b6854c4c891fc142 | |
| parent | e8f9d18e8860575724e6b2ab134b4d1eba8a61f7 (diff) | |
mb/google/nissa/var/anraggar: Update touchscreen enable pin to GPP_C0
Assign GPP_C0 and enable only the touchscreen. Before modification,
GPP_C0 supplies power to the touchscreen and sensor at the same time.
Now the hardware circuit has been modified, GPP_C0 supplies power to the
touchscreen alone. After the software is synchronously modified, when
the device enters suspend(S0ix), GPP_C0 will not enable VDD, which can
reduce the standby power consumption of the touchscreen when it is
suspended(S0ix), which is about 2.1mW.
BUG=b:304920262
TEST= touchscreen function workable
Change-Id: Ia06209aa8303be4fc0669c5d6e5d7a06e8e9ab99
Signed-off-by: Qinghong Zeng <zengqinghong@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81265
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Weimin Wu <wuweimin@huaqin.corp-partner.google.com>
| -rw-r--r-- | src/mainboard/google/brya/variants/anraggar/overridetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/brya/variants/anraggar/overridetree.cb b/src/mainboard/google/brya/variants/anraggar/overridetree.cb index e0e46f6401..c7942c145d 100644 --- a/src/mainboard/google/brya/variants/anraggar/overridetree.cb +++ b/src/mainboard/google/brya/variants/anraggar/overridetree.cb @@ -239,7 +239,7 @@ chip soc/intel/alderlake register "generic.detect" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)" register "generic.reset_delay_ms" = "200" - register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C6)" + register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "generic.enable_delay_ms" = "12" register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "200" |