On 2023-05-09 15:06:54, Jessica Zhang wrote: > hdisplay for compressed images should be calculated as bytes_per_slice * > slice_count. Thus, use MSM DSC helper to calculate hdisplay for For most intents and purposes, these values are the same when bits_per_pixel=8. We should find a place where we can assert that slice_width*slice_count==hdisplay, though. > dsi_timing_setup instead of directly using mode->hdisplay. > > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> > Signed-off-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx> Reviewed-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx> > --- > 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..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; > } > > -- > 2.40.1 >
