From 541fd14fd95127072a7d5130a9ca404abf92fa9e Mon Sep 17 00:00:00 2001 From: Dtrain Hsu Date: Fri, 7 Nov 2025 10:25:55 +0800 Subject: [PATCH] mb/google/nissa/var/uldren: Increase Touch IC enable delay time MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the datasheet and the LCD team’s response, increase Touch IC enable delay time to resolve touch failure after resume. BUG=b:458190286 TEST=1. Checked the touch screen power sequence waveform. The result is in b:458190286#comment4. 2. The touch feature works after resume. Change-Id: Ia5a1d028721b1181d38730c23b27a80fa97e0dd7 Signed-off-by: Dtrain Hsu Reviewed-on: https://review.coreboot.org/c/coreboot/+/89937 Tested-by: build bot (Jenkins) Reviewed-by: Eric Lai --- src/mainboard/google/brya/variants/uldren/overridetree.cb | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/mainboard/google/brya/variants/uldren/overridetree.cb b/src/mainboard/google/brya/variants/uldren/overridetree.cb index a2a0e26b81..d76c45404a 100644 --- a/src/mainboard/google/brya/variants/uldren/overridetree.cb +++ b/src/mainboard/google/brya/variants/uldren/overridetree.cb @@ -219,7 +219,7 @@ chip soc/intel/alderlake register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_delay_ms" = "130" register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" - register "generic.enable_delay_ms" = "1" + register "generic.enable_delay_ms" = "10" register "generic.has_power_resource" = "1" register "generic.use_gpio_for_status" = "true" register "hid_desc_reg_offset" = "0x20" @@ -239,7 +239,7 @@ chip soc/intel/alderlake register "stop_delay_ms" = "280" register "stop_off_delay_ms" = "2" register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" - register "enable_delay_ms" = "1" + register "enable_delay_ms" = "6" register "has_power_resource" = "true" register "use_gpio_for_status" = "true" device i2c 10 on @@ -311,7 +311,7 @@ chip soc/intel/alderlake register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_delay_ms" = "130" register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" - register "generic.enable_delay_ms" = "1" + register "generic.enable_delay_ms" = "10" register "generic.has_power_resource" = "1" register "generic.use_gpio_for_status" = "true" register "hid_desc_reg_offset" = "0x20"