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drm/msm/dp: program config ctrl for YUV420 over DP

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Change relevant DP controller related programming for YUV420 cases.
Program the configuration control register to indicate YUV420.

Changes in v2:
	- Create a new patch only for configuration control programming

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579615/
Link: https://lore.kernel.org/r/20240222194025.25329-11-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Paloma Arellano
2024-02-22 11:39:55 -08:00
committed by Dmitry Baryshkov
parent 1cfc64a6ea
commit 683d374582
1 changed files with 3 additions and 0 deletions
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drivers/gpu/drm/msm/dp/dp_ctrl.c
+3
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@@ -142,6 +142,9 @@ static void dp_ctrl_config_ctrl(struct dp_ctrl_private *ctrl)
/* Default-> LSCLK DIV: 1/4 LCLK */
config |= (2 << DP_CONFIGURATION_CTRL_LSCLK_DIV_SHIFT);
if (ctrl->panel->dp_mode.out_fmt_is_yuv_420)
config |= DP_CONFIGURATION_CTRL_RGB_YUV; /* YUV420 */
/* Scrambler reset enable */
if (drm_dp_alternate_scrambler_reset_cap(dpcd))
config |= DP_CONFIGURATION_CTRL_ASSR;