Re: [PATCH v1 07/12] drm/bridge: tc358767: Use drm_bridge_funcs.atomic_check

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On Mon, Sep 19, 2022 at 06:29:41PM +0300, Laurent Pinchart wrote:
> On Sun, Jul 17, 2022 at 07:44:49PM +0200, Sam Ravnborg wrote:
> > When atomic_check() is defined, then mode_fixup() is ignored,
> > so it had no effect that drm_bridge_funcs.mode_fixup was assigned.
> > Embed the original implementation in the caller and drop the function.
> > 
> > Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> > Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
> > Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> > Cc: Robert Foss <robert.foss@xxxxxxxxxx>
> > Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx>
> > Cc: Jonas Karlman <jonas@xxxxxxxxx>
> > Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>

But this doesn't apply anymore, as the mode_fixup operation has been
removed from the driver already. You can just drop this patch.

> > ---
> >  drivers/gpu/drm/bridge/tc358767.c | 21 ++++++---------------
> >  1 file changed, 6 insertions(+), 15 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
> > index 02bd757a8987..b2ab967504af 100644
> > --- a/drivers/gpu/drm/bridge/tc358767.c
> > +++ b/drivers/gpu/drm/bridge/tc358767.c
> > @@ -1496,26 +1496,18 @@ tc_edp_bridge_atomic_disable(struct drm_bridge *bridge,
> >  		dev_err(tc->dev, "main link disable error: %d\n", ret);
> >  }
> >  
> > -static bool tc_bridge_mode_fixup(struct drm_bridge *bridge,
> > -				 const struct drm_display_mode *mode,
> > -				 struct drm_display_mode *adj)
> > -{
> > -	/* Fixup sync polarities, both hsync and vsync are active low */
> > -	adj->flags = mode->flags;
> > -	adj->flags |= (DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC);
> > -	adj->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
> > -
> > -	return true;
> > -}
> > -
> >  static int tc_common_atomic_check(struct drm_bridge *bridge,
> >  				  struct drm_bridge_state *bridge_state,
> >  				  struct drm_crtc_state *crtc_state,
> >  				  struct drm_connector_state *conn_state,
> >  				  const unsigned int max_khz)
> >  {
> > -	tc_bridge_mode_fixup(bridge, &crtc_state->mode,
> > -			     &crtc_state->adjusted_mode);
> > +	struct drm_display_mode *adj = &crtc_state->adjusted_mode;
> > +
> > +	/* Fixup sync polarities, both hsync and vsync are active low */
> > +	adj->flags = crtc_state->mode.flags;
> > +	adj->flags |= (DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC);
> > +	adj->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
> >  
> >  	if (crtc_state->adjusted_mode.clock > max_khz)
> >  		return -EINVAL;
> > @@ -1783,7 +1775,6 @@ static const struct drm_bridge_funcs tc_edp_bridge_funcs = {
> >  	.atomic_check = tc_edp_atomic_check,
> >  	.atomic_enable = tc_edp_bridge_atomic_enable,
> >  	.atomic_disable = tc_edp_bridge_atomic_disable,
> > -	.mode_fixup = tc_bridge_mode_fixup,
> >  	.detect = tc_bridge_detect,
> >  	.get_edid = tc_get_edid,
> >  	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,

-- 
Regards,

Laurent Pinchart



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