Furquan Shaikh has submitted this change. ( https://review.coreboot.org/c/coreboot/+/51613 )
Change subject: mb/google/volteer/variants/delbin: Disable PmcUsb2PhySusPgEnable ......................................................................
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 --- M src/mainboard/google/volteer/variants/delbin/overridetree.cb 1 file changed, 2 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Duncan Laurie: Looks good to me, approved
diff --git a/src/mainboard/google/volteer/variants/delbin/overridetree.cb b/src/mainboard/google/volteer/variants/delbin/overridetree.cb index 5e9600b..c111731 100644 --- a/src/mainboard/google/volteer/variants/delbin/overridetree.cb +++ b/src/mainboard/google/volteer/variants/delbin/overridetree.cb @@ -2,6 +2,8 @@ register "DdiPort1Hpd" = "0" register "DdiPort2Hpd" = "0"
+ register "usb2_phy_sus_pg_disable" = "1" + #+-------------------+---------------------------+ #| Field | Value | #+-------------------+---------------------------+