diff options
| author | Joey Peng <joey.peng@lcfc.corp-partner.google.com> | 2022-08-11 14:08:22 +0800 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2022-08-13 16:42:07 +0000 |
| commit | cb09b857995de0fa908190a662112e13c2d83c47 (patch) | |
| tree | f9fbd7d30b30ab5e0ef177474cb9b0533f5bb005 /src/mainboard/google/brya | |
| parent | 41714ed5413313723dc7876bc0f27c09dc38dc6b (diff) | |
mb/google/brya/var/taniks: Disable PCH USB2 phy power gating for taniks
The patch disables PCH USB2 Phy power gating to prevent possible display
flicker issue for taniks board. Please refer Intel doc#723158 for
more information.
BUG=b:241965786
TEST=Verify on taniks boards.
Signed-off-by: Joey Peng <joey.peng@lcfc.corp-partner.google.com>
Change-Id: Ib95430c7ba9d84f8bafcb1febcff9b4e4038cadc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66622
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/mainboard/google/brya')
| -rw-r--r-- | src/mainboard/google/brya/variants/taniks/overridetree.cb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/taniks/overridetree.cb b/src/mainboard/google/brya/variants/taniks/overridetree.cb index fe37f68af8..fe05d08390 100644 --- a/src/mainboard/google/brya/variants/taniks/overridetree.cb +++ b/src/mainboard/google/brya/variants/taniks/overridetree.cb @@ -36,6 +36,10 @@ fw_config end end chip soc/intel/alderlake + # As per Intel Advisory doc#723158, the change is required to prevent possible + # display flickering issue. + register "usb2_phy_sus_pg_disable" = "1" + # Acoustic settings register "acoustic_noise_mitigation" = "1" register "slow_slew_rate[VR_DOMAIN_IA]" = "SLEW_FAST_8" |