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| author | Ravi Sarawadi <ravishankar.sarawadi@intel.com> | 2021-03-17 16:07:28 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2021-03-23 00:03:15 +0000 |
| commit | c6bc3a56d684307770737a0ca1c34690a1289d00 (patch) | |
| tree | 1f825b5cd1627654cce611b35d5a50654074bd1c | |
| parent | 7ef6aeec14d90023188a86487644ff9f7c0efc93 (diff) | |
| download | coreboot-c6bc3a56d684307770737a0ca1c34690a1289d00.tar.xz | |
mb/google/volteer/variants/delbin: Disable PmcUsb2PhySusPgEnable
eDP panel flicker during system idle state is observed.
Disabling USB2 SUS well power gating can remove flicker symptom.
Please refer to doc#634894 for more details.
BUG=b:182323059
BRANCH=None
TEST=Boot and confirm no display flicker.
Signed-off-by: Ravi Sarawadi <ravishankar.sarawadi@intel.com>
Change-Id: Icadf9c494fab82b219317c3ca3b04f633b543083
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51613
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
| -rw-r--r-- | src/mainboard/google/volteer/variants/delbin/overridetree.cb | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/variants/delbin/overridetree.cb b/src/mainboard/google/volteer/variants/delbin/overridetree.cb index 5e9600b26f..c111731387 100644 --- a/src/mainboard/google/volteer/variants/delbin/overridetree.cb +++ b/src/mainboard/google/volteer/variants/delbin/overridetree.cb @@ -2,6 +2,8 @@ chip soc/intel/tigerlake register "DdiPort1Hpd" = "0" register "DdiPort2Hpd" = "0" + register "usb2_phy_sus_pg_disable" = "1" + #+-------------------+---------------------------+ #| Field | Value | #+-------------------+---------------------------+ |