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[v8,8/8] drm/msm/dsi: update hdisplay calculation for dsi_timing_setup

Message ID 20230329-rfc-msm-dsc-helper-v8-8-2c9b2bb1209c@quicinc.com (mailing list archive)
State Superseded
Headers show
Series Introduce MSM-specific DSC helpers | expand

Commit Message

Jessica Zhang May 10, 2023, 10:45 p.m. UTC 
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.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 508577c596ff..d60403372514 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_bytes_per_line(msm_host->dsc) / 3;
 		h_total += hdisplay;
 		ha_end = ha_start + hdisplay;
 	}