From: Jessica Zhang Date: Wed, 24 May 2023 17:45:22 +0000 (-0700) Subject: drm/msm/dsi: update hdisplay calculation for dsi_timing_setup X-Git-Tag: v6.6.17~3937^2~4^2~154 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=149419396a9200075de8d75becd740ae48721524;p=platform%2Fkernel%2Flinux-rpi.git drm/msm/dsi: update hdisplay calculation for dsi_timing_setup Currently, hdisplay is being divided by 3 for DSC. However, this calculation only works for cases where BPP = 8. Update hdisplay calculation to be bytes_per_line / 3, so that it accounts for cases where BPP != 8. Reviewed-by: Dmitry Baryshkov Reviewed-by: Marijn Suijten Signed-off-by: Jessica Zhang Patchwork: https://patchwork.freedesktop.org/patch/539271/ Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-9-bafc7be95691@quicinc.com Signed-off-by: Dmitry Baryshkov --- diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index e693022..1a99d75 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -949,7 +949,7 @@ 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; }