[S] Change in coreboot[master]: mb/google/skyrim/var/markarth: Update Elan touchscreen power sequence

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/73130 )

Change subject: mb/google/skyrim/var/markarth: Update Elan touchscreen power sequence
......................................................................

mb/google/skyrim/var/markarth: Update Elan touchscreen power sequence

Based on product spec v1.4, update T3 timing from 180 ms to 150 ms.

BRANCH=none
BUG=b:262734395
TEST=emerge-skyrim coreboot chromeos-bootimage
Then the Elan touchscreen works fine.

Signed-off-by: John Su 
Change-Id: I0d8f1e008276fccdfbb8c76cfebaccbe71160b64
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73130
Reviewed-by: Eric Lai 
Tested-by: build bot (Jenkins) 
Reviewed-by: Frank Wu 
---
M src/mainboard/google/skyrim/variants/markarth/overridetree.cb
1 file changed, 22 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Frank Wu: Looks good to me, approved
  Eric Lai: Looks good to me, approved

diff --git a/src/mainboard/google/skyrim/variants/markarth/overridetree.cb b/src/mainboard/google/skyrim/variants/markarth/overridetree.cb
index f50820b..5adffd4 100644
--- a/src/mainboard/google/skyrim/variants/markarth/overridetree.cb
+++ b/src/mainboard/google/skyrim/variants/markarth/overridetree.cb
@@ -85,7 +85,7 @@
    		register "generic.reset_off_delay_ms" = "1"
    		register "generic.reset_delay_ms" = "10"
    		register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_76)"
-			register "generic.stop_delay_ms" = "180"
+			register "generic.stop_delay_ms" = "150"
    		register "generic.stop_off_delay_ms" = "1"
    		register "generic.has_power_resource" = "1"
    		register "hid_desc_reg_offset" = "0x01"