On 5.10.2024 4:38 PM, Jonathan Marek wrote: > drm_mode_vrefresh() can introduce a large rounding error, avoid it. > > Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx> > --- > 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 185d7de0bf376..1205aa398e445 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi_host.c > +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c > @@ -542,7 +542,7 @@ static unsigned long dsi_adjust_pclk_for_compression(const struct drm_display_mo > > int new_htotal = mode->htotal - mode->hdisplay + new_hdisplay; > > - return new_htotal * mode->vtotal * drm_mode_vrefresh(mode); > + return mult_frac(mode->clock * 1000u, new_htotal, mode->htotal); This seems to ignore mult/div by two on certain mode flags.. is that intended? Konrad
