erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mb/brya/var/uldrenite: Increase Touch IC enable delay time

Browse source 
According to the datasheet and the LCD team’s response, increase Touch
IC enable delay time to resolve touch failure after resume.

BUG=b:441010546
TEST=Checked the waveform and suspend stress test, both checked OK.
Meet seconds_system_resume < 0.5 sec, boot time < 1.3 sec.

Change-Id: I778fd79f7bad3ad1873880b7412c0c49dcb40b1f
Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88934
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This commit is contained in:
John Su 2025-08-25 17:55:15 +08:00 • committed by Matt DeVillier
commit c590e8e75c
1 changed files with 3 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/mainboard/google/brya/variants/uldrenite/overridetree.cb
View file

@ -367,7 +367,7 @@ chip soc/intel/alderlake
register "stop_delay_ms" = "150"
register "stop_off_delay_ms" = "2"
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E17)"
register "enable_delay_ms" = "1"
register "enable_delay_ms" = "6"
register "has_power_resource" = "true"
device i2c 10 on
probe TOUCHSCREEN TOUCHSCREEN_UNKNOWN
@ -418,7 +418,7 @@ chip soc/intel/alderlake
register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A21)"
register "generic.stop_delay_ms" = "130"
register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E17)"
register "generic.enable_delay_ms" = "1"
register "generic.enable_delay_ms" = "10"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on
@ -435,7 +435,7 @@ chip soc/intel/alderlake
register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A21)"
register "generic.stop_delay_ms" = "130"
register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E17)"
register "generic.enable_delay_ms" = "1"
register "generic.enable_delay_ms" = "10"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 3c on