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disp: msm: dp: add support for test pattern #4

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DP specification mandate test pattern #4 for CTS 1.4a. Add
support for the same in link training #2 as per specification.

CRs-Fixed: 2490128
Change-Id: I2f72fec340b56270e7fd1c2940adafe1068bab43
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
This commit is contained in:
Ajay Singh Parmar
2019-07-19 10:57:53 -07:00
parent aacd9e9585
commit 9af9987d3d
2 changed files with 22 additions and 8 deletions
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4
msm/dp/dp_ctrl.c
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@@ -453,7 +453,9 @@ static int dp_ctrl_link_training_2(struct dp_ctrl_private *ctrl)
/* Make sure to clear the current pattern before starting a new one */
wmb();
if (drm_dp_tps3_supported(ctrl->panel->dpcd))
if (drm_dp_tps4_supported(ctrl->panel->dpcd))
dpcd_pattern = DP_TRAINING_PATTERN_4;
else if (drm_dp_tps3_supported(ctrl->panel->dpcd))
dpcd_pattern = DP_TRAINING_PATTERN_3;
else
dpcd_pattern = DP_TRAINING_PATTERN_2;