hdisplay for compressed images should be calculated as bytes_per_slice *
slice_count. Thus, use MSM DSC helper to calculate hdisplay for
dsi_timing_setup instead of directly using mode->hdisplay.

Changes in v3:
- Split from previous patch
- Initialized hdisplay as uncompressed pclk per line at the beginning of
  dsi_timing_setup as to not break dual DSI calculations

Changes in v4:
- Moved pclk_per_intf calculations to DSC hdisplay adjustments

Signed-off-by: Jessica Zhang <quic_jessz...@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c 
b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 508577c596ff..ae966d4e349d 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -952,7 +952,7 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, 
bool is_bonded_dsi)
                 * pulse width same
                 */
                h_total -= hdisplay;
-               hdisplay /= 3;
+               hdisplay = msm_dsc_get_pclk_per_intf(msm_host->dsc) / 3;
                h_total += hdisplay;
                ha_end = ha_start + hdisplay;
        }

-- 
2.40.0

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