Hi Alexey, On 03-03-2017 13:27, Alexey Brodkin wrote: > > So if I understood you correct here what I really need is just to get rid of existing check, > right? I.e. the following is to be in v2 respin: > ------------------------------->8------------------------------- > diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c b/drivers/gpu/drm/arc/arcpgu_crtc.c > index ad9a95916f1f..86f1555914e8 100644 > --- a/drivers/gpu/drm/arc/arcpgu_crtc.c > +++ b/drivers/gpu/drm/arc/arcpgu_crtc.c > @@ -129,20 +129,6 @@ static void arc_pgu_crtc_disable(struct drm_crtc *crtc) > ~ARCPGU_CTRL_ENABLE_MASK); > } > > -static int arc_pgu_crtc_atomic_check(struct drm_crtc *crtc, > - struct drm_crtc_state *state) > -{ > - struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc); > - struct drm_display_mode *mode = &state->adjusted_mode; > - long rate, clk_rate = mode->clock * 1000; > - > - rate = clk_round_rate(arcpgu->clk, clk_rate); > - if (rate != clk_rate) > - return -EINVAL; > - > - return 0; > -} > - > static void arc_pgu_crtc_atomic_begin(struct drm_crtc *crtc, > struct drm_crtc_state *state) > { > @@ -165,7 +151,6 @@ static const struct drm_crtc_helper_funcs arc_pgu_crtc_helper_funcs = { > .disable = arc_pgu_crtc_disable, > .prepare = arc_pgu_crtc_disable, > .commit = arc_pgu_crtc_enable, > - .atomic_check = arc_pgu_crtc_atomic_check, > .atomic_begin = arc_pgu_crtc_atomic_begin, > }; > ------------------------------->8------------------------------- I don't think you can remove the check entirely as this will make any mode be accepted, right? Best regards, Jose Miguel Abreu