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authorV Sowmya <v.sowmya@intel.com>2022-09-15 08:04:10 +0530
committerFelix Held <felix-coreboot@felixheld.de>2022-09-30 13:15:59 +0000
commit662bbcfe7280b1541c4ee1c4d2ad4194b363a1df (patch)
tree315584931104d4099cab0104068fbe2dd1ab2740 /src/mainboard/google/brya/variants/craask
parentfcfa4addd1b66dcdcd4425ead475c8188eef3abe (diff)
mb/google/nissa: Disable the External 1.05v VR in S0
Disable the external 1.05v VR in S0 as a fix for the Display flicker issue in ADL-N. Please refer the Doc with ID 742988 for more details. BUG=b:248249033, b:245970842 TEST=Verified that the display flicker issue is fixed. Signed-off-by: V Sowmya <v.sowmya@intel.com> Change-Id: Iaa53bfd99a550b2cffcdaee640ee3a429e93aef7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67653 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Vidya Gopalakrishnan <vidya.gopalakrishnan@intel.com> Reviewed-by: Reka Norman <rekanorman@chromium.org> Reviewed-by: Kangheui Won <khwon@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/mainboard/google/brya/variants/craask')
-rw-r--r--src/mainboard/google/brya/variants/craask/overridetree.cb2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/brya/variants/craask/overridetree.cb b/src/mainboard/google/brya/variants/craask/overridetree.cb
index bb0a78ad33..70571095ae 100644
--- a/src/mainboard/google/brya/variants/craask/overridetree.cb
+++ b/src/mainboard/google/brya/variants/craask/overridetree.cb
@@ -91,7 +91,7 @@ chip soc/intel/alderlake
# Configure external V1P05/Vnn/VnnSx Rails
register "ext_fivr_settings" = "{
.configure_ext_fivr = 1,
- .v1p05_enable_bitmap = FIVR_ENABLE_ALL_SX,
+ .v1p05_enable_bitmap = FIVR_ENABLE_ALL_SX & ~FIVR_ENABLE_S0,
.vnn_enable_bitmap = FIVR_ENABLE_ALL_SX,
.vnn_sx_enable_bitmap = FIVR_ENABLE_ALL_SX,
.v1p05_supported_voltage_bitmap = FIVR_VOLTAGE_NORMAL,