[coreboot-gerrit] [S] Change in coreboot[master]: soc/qualcomm/sc7280: Add support to configure 6bit color depth

[Venkat Thogaru (Code Review)]

Venkat Thogaru has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/72744 )

Change subject: soc/qualcomm/sc7280: Add support to configure 6bit color depth
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soc/qualcomm/sc7280: Add support to configure 6bit color depth

Some of the eDp panels use 6bit color depth as default.
Set the default color depth configuration to 6 bit when there is no match
with the supported color depths.

BUG=b:255870643
TEST=Validated on sc7280 Zombie development board

Change-Id: I2cea10ad417a05f020e4c418f15212fee06a2369
Signed-off-by: Vinod Polimera 
---
M src/soc/qualcomm/sc7280/display/edp_ctrl.c
1 file changed, 20 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/44/72744/1

diff --git a/src/soc/qualcomm/sc7280/display/edp_ctrl.c b/src/soc/qualcomm/sc7280/display/edp_ctrl.c
index 1455cac..beedbaf 100644
--- a/src/soc/qualcomm/sc7280/display/edp_ctrl.c
+++ b/src/soc/qualcomm/sc7280/display/edp_ctrl.c
@@ -493,6 +493,9 @@
    	depth = EDP_12BIT;
    else if (ctrl->color_depth == 16)
    	depth = EDP_16BIT;
+	else
+		depth = EDP_6BIT;
+
    config |= depth << EDP_CONFIGURATION_CTRL_BPC_SHIFT;

/* Num of Lanes */