Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/42867 )
Change subject: mb/google/zork: update G2 TS RST delay time ......................................................................
mb/google/zork: update G2 TS RST delay time
in some m/b+BOE panel(G2 TS), G2 TS may still have chance to lost even rst delay time already meets spec definition: 10us (minimum).
Restore G2 TS RST delay time to 50ms, we could have G2 TS working fine on those specific m/b+BOE(G2 TS) panel.
BUG=b:159510906 BRANCH=master TEST=emerge-zork coreboot boot with G2 TS, make sure G2 TS is functional
Change-Id: Ic629c6c61572ab564def8893ce8d78dfb37d4590 Signed-off-by: Kevin Chiu kevin.chiu@quantatw.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/42867 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Aaron Durbin adurbin@chromium.org Reviewed-by: Furquan Shaikh furquan@google.com --- M src/mainboard/google/zork/variants/berknip/overridetree.cb 1 file changed, 1 insertion(+), 1 deletion(-)
Approvals: build bot (Jenkins): Verified Aaron Durbin: Looks good to me, approved Furquan Shaikh: Looks good to me, approved
diff --git a/src/mainboard/google/zork/variants/berknip/overridetree.cb b/src/mainboard/google/zork/variants/berknip/overridetree.cb index 18288ec..229469e 100644 --- a/src/mainboard/google/zork/variants/berknip/overridetree.cb +++ b/src/mainboard/google/zork/variants/berknip/overridetree.cb @@ -93,7 +93,7 @@ register "generic.irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_12)" register "generic.probed" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_140)" - register "generic.reset_delay_ms" = "1" + register "generic.reset_delay_ms" = "50" register "generic.has_power_resource" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 40 on end