On Thu, Dec 03, 2015 at 10:50:07AM +0100, Daniel Vetter wrote: > On Thu, Dec 03, 2015 at 09:55:44AM +0100, Philipp Zabel wrote: > > Use drm_mode_vrefresh to update the vrefresh field after changing the > > modes' timings and flags. > > > > Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> > > --- > > drivers/gpu/drm/drm_modes.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c > > index cd74a09..b624be8 100644 > > --- a/drivers/gpu/drm/drm_modes.c > > +++ b/drivers/gpu/drm/drm_modes.c > > @@ -611,6 +611,8 @@ void drm_display_mode_from_videomode(const struct videomode *vm, > > dmode->flags |= DRM_MODE_FLAG_DBLSCAN; > > if (vm->flags & DISPLAY_FLAGS_DOUBLECLK) > > dmode->flags |= DRM_MODE_FLAG_DBLCLK; > > + dmode->vrefresh = 0; > > Rendundant. Or I'm blind. Unfortunately it isn't. drm_mode_vrefresh() is somewhat odd in that it'll return the existing mode->vrefresh if it is > 0. I'm thinking that perhaps it'd be useful to factor out the computation code into a separate function, say drm_mode_calc_vrefresh(), and use that where you really want to compute the value and at the same time use it to simplify drm_mode_vrefresh() as well. Thierry
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