[PATCH v2 17/19] drm/msm/dpu: modify timing engine programming for YUV420 over DP

[Paloma Arellano]

Adjust the encoder timing engine setup programming in the case of video
mode for YUV420 over DP to accommodate CDM.

Changes in v2:
	- Move timing engine programming to this patch

Signed-off-by: Paloma Arellano <quic_parellan at quicinc.com>
---
 .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index 3f102b2813ca8..fb46d907312a7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -235,8 +235,9 @@ static void dpu_encoder_phys_vid_setup_timing_engine(
 {
 	struct drm_display_mode mode;
 	struct dpu_hw_intf_timing_params timing_params = { 0 };
+	struct dpu_hw_cdm *hw_cdm;
 	const struct dpu_format *fmt = NULL;
-	u32 fmt_fourcc = DRM_FORMAT_RGB888;
+	u32 fmt_fourcc;
 	unsigned long lock_flags;
 	struct dpu_hw_intf_cfg intf_cfg = { 0 };
 
@@ -255,17 +256,21 @@ static void dpu_encoder_phys_vid_setup_timing_engine(
 	DPU_DEBUG_VIDENC(phys_enc, "enabling mode:\n");
 	drm_mode_debug_printmodeline(&mode);
 
-	if (phys_enc->split_role != ENC_ROLE_SOLO) {
+	fmt_fourcc = dpu_encoder_get_drm_fmt(phys_enc);
+
+	if (phys_enc->split_role != ENC_ROLE_SOLO || fmt_fourcc == DRM_FORMAT_YUV420) {
 		mode.hdisplay >>= 1;
 		mode.htotal >>= 1;
 		mode.hsync_start >>= 1;
 		mode.hsync_end >>= 1;
+		mode.hskew >>= 1;
 
 		DPU_DEBUG_VIDENC(phys_enc,
-			"split_role %d, halve horizontal %d %d %d %d\n",
+			"split_role %d, halve horizontal %d %d %d %d %d\n",
 			phys_enc->split_role,
 			mode.hdisplay, mode.htotal,
-			mode.hsync_start, mode.hsync_end);
+			mode.hsync_start, mode.hsync_end,
+			mode.hskew);
 	}
 
 	drm_mode_to_intf_timing_params(phys_enc, &mode, &timing_params);
@@ -273,6 +278,9 @@ static void dpu_encoder_phys_vid_setup_timing_engine(
 	fmt = dpu_get_dpu_format(fmt_fourcc);
 	DPU_DEBUG_VIDENC(phys_enc, "fmt_fourcc 0x%X\n", fmt_fourcc);
 
+	hw_cdm = phys_enc->hw_cdm;
+	if (hw_cdm)
+		intf_cfg.cdm = hw_cdm->idx;
 	intf_cfg.intf = phys_enc->hw_intf->idx;
 	intf_cfg.intf_mode_sel = DPU_CTL_MODE_SEL_VID;
 	intf_cfg.stream_sel = 0; /* Don't care value for video mode */
-- 
2.39.2