[PATCH v5 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 v3:
        - Move drm_display_mode's hskew division to another patch
        - Minor cleanup

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

Signed-off-by: Paloma Arellano <quic_parel...@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 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 86c57c8b7e784..5cb816ea4dcc0 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
@@ -236,7 +236,7 @@ static void dpu_encoder_phys_vid_setup_timing_engine(
        struct drm_display_mode mode;
        struct dpu_hw_intf_timing_params timing_params = { 0 };
        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 };
 
@@ -255,7 +255,9 @@ 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;
@@ -275,6 +277,8 @@ 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);
 
+       if (phys_enc->hw_cdm)
+               intf_cfg.cdm = phys_enc->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