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Date:   Wed, 18 Jul 2018 15:40:51 +0100
From:   Ayan Halder <ayan.halder@arm.com>
To:     Ville Syrj?l? <ville.syrjala@linux.intel.com>
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Subject: Re: [Intel-gfx] [PATCH 5/5] drm/sun4i: Substitute
 sun4i_backend_format_is_yuv() with format->is_yuv
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On Wed, Jul 18, 2018 at 01:15:40PM +0300, Ville Syrj?l? wrote:

Hi Ville,
> On Tue, Jul 17, 2018 at 06:13:46PM +0100, Ayan Kumar Halder wrote:
> > drm_format_info table has a field 'is_yuv' to denote if the format
> > is yuv or not. The driver is expected to use this instead of
> > having a function for the same purpose.
> > 
> > Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com>
> > ---
> >  drivers/gpu/drm/sun4i/sun4i_backend.c | 12 +++---------
> >  1 file changed, 3 insertions(+), 9 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
> > index de0a76d..d7950b5 100644
> > --- a/drivers/gpu/drm/sun4i/sun4i_backend.c
> > +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
> > @@ -86,12 +86,6 @@ static inline bool sun4i_backend_format_is_packed_yuv422(uint32_t format)
> >  	}
> >  }
> >  
> > -static inline bool sun4i_backend_format_is_yuv(uint32_t format)
> > -{
> > -	return sun4i_backend_format_is_planar_yuv(format) ||
> > -		sun4i_backend_format_is_packed_yuv422(format);
> > -}
> 
> sun4i_backend_format_is_planar_yuv() is now unused so could be nuked.
> Also the one remaining use of sun4i_backend_format_is_packed_yuv422()
> could be replaced with 'is_yuv && num_planes == 1', so that one could
> be easily killed off ass well.

I will have this in a separate patch.
> > -
> >  static void sun4i_backend_apply_color_correction(struct sunxi_engine *engine)
> >  {
> >  	int i;
> > @@ -304,7 +298,7 @@ int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
> >  			   SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_EN,
> >  			   val);
> >  
> > -	if (sun4i_backend_format_is_yuv(fb->format->format))
> > +	if (fb->format->is_yuv)
> >  		return sun4i_backend_update_yuv_format(backend, layer, plane);
> >  
> >  	ret = sun4i_backend_drm_format_to_layer(fb->format->format, &val);
> > @@ -384,7 +378,7 @@ int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend,
> >  	 */
> >  	paddr -= PHYS_OFFSET;
> >  
> > -	if (sun4i_backend_format_is_yuv(fb->format->format))
> > +	if (fb->format->is_yuv)
> >  		return sun4i_backend_update_yuv_buffer(backend, fb, paddr);
> >  
> >  	/* Write the 32 lower bits of the address (in bits) */
> > @@ -502,7 +496,7 @@ static int sun4i_backend_atomic_check(struct sunxi_engine *engine,
> >  		if (fb->format->has_alpha || (plane_state->alpha != DRM_BLEND_ALPHA_OPAQUE))
> >  			num_alpha_planes++;
> >  
> > -		if (sun4i_backend_format_is_yuv(fb->format->format)) {
> > +		if (fb->format->is_yuv) {
> >  			DRM_DEBUG_DRIVER("Plane FB format is YUV\n");
> >  			num_yuv_planes++;
> >  		}
> > -- 
> > 2.7.4
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Ville Syrj?l?
> Intel