[PATCH 07/17] drm/msm/dpu: disallow widebus en in INTF_CONFIG2 when DP is YUV420

[Paloma Arellano]

INTF_CONFIG2 register cannot have widebus enabled when DP format is
YUV420. Therefore, program the INTF to send 1 ppc.

Signed-off-by: Paloma Arellano <quic_parellan at quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
index 6bba531d6dc41..bfb93f02fe7c1 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
@@ -168,7 +168,9 @@ static void dpu_hw_intf_setup_timing_engine(struct dpu_hw_intf *ctx,
 	 * video timing. It is recommended to enable it for all cases, except
 	 * if compression is enabled in 1 pixel per clock mode
 	 */
-	if (p->wide_bus_en)
+	if (dp_intf && fmt->base.pixel_format == DRM_FORMAT_YUV420)
+		intf_cfg2 |= INTF_CFG2_DATA_HCTL_EN;
+	else if (p->wide_bus_en)
 		intf_cfg2 |= INTF_CFG2_DATABUS_WIDEN | INTF_CFG2_DATA_HCTL_EN;
 
 	data_width = p->width;
-- 
2.39.2