[Intel-gfx] [PATCH v2 4/4] drm: Add and handle new aspect ratios in DRM layer

[Daniel Vetter]

On Thu, Oct 13, 2016 at 10:28:14AM -0700, Jim Bride wrote:
> On Tue, Aug 09, 2016 at 08:25:50PM +0530, Shashank Sharma wrote:
> > HDMI 2.0/CEA-861-F introduces two new aspect ratios:
> > - 64:27
> > - 256:135
> > 
> > This patch:
> > -  Adds new DRM flags for to represent these new aspect ratios.
> > -  Adds new cases to handle these aspect ratios while converting
> > from user->kernel mode or vise versa.
> > 
> > V2: Rebase
> > 
> > Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
> > Reviewed-by: Sean Paul <seanpaul at chromium.org>
> > Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> > Cc: Emil Velikov <emil.l.velikov at gmail.com>
> > ---
> >  drivers/gpu/drm/drm_modes.c | 12 ++++++++++++
> >  include/uapi/drm/drm_mode.h |  6 ++++++
> >  2 files changed, 18 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
> > index 9d8f00d..ed1b07b 100644
> > --- a/drivers/gpu/drm/drm_modes.c
> > +++ b/drivers/gpu/drm/drm_modes.c
> > @@ -1481,6 +1481,12 @@ void drm_mode_convert_to_umode(struct drm_mode_modeinfo *out,
> >  	case HDMI_PICTURE_ASPECT_16_9:
> >  		out->flags |= DRM_MODE_FLAG_PIC_AR_16_9;
> >  		break;
> > +	case HDMI_PICTURE_ASPECT_64_27:
> > +		out->flags |= DRM_MODE_FLAG_PIC_AR_64_27;
> > +		break;
> > +	case DRM_MODE_PICTURE_ASPECT_256_135:
> > +		out->flags |= DRM_MODE_FLAG_PIC_AR_256_135;
> > +		break;
> >  	case HDMI_PICTURE_ASPECT_RESERVED:
> >  	default:
> >  		out->flags |= DRM_MODE_FLAG_PIC_AR_NONE;
> > @@ -1542,6 +1548,12 @@ int drm_mode_convert_umode(struct drm_display_mode *out,
> >  	case DRM_MODE_FLAG_PIC_AR_16_9:
> >  		out->picture_aspect_ratio |= HDMI_PICTURE_ASPECT_16_9;
> >  		break;
> > +	case DRM_MODE_FLAG_PIC_AR_64_27:
> > +		out->picture_aspect_ratio |= HDMI_PICTURE_ASPECT_64_27;
> > +		break;
> > +	case DRM_MODE_FLAG_PIC_AR_256_135:
> > +		out->picture_aspect_ratio |= HDMI_PICTURE_ASPECT_256_135;
> > +		break;
> >  	default:
> >  		out->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
> >  		break;
> > diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
> > index 77c869d6..4d3429b 100644
> > --- a/include/uapi/drm/drm_mode.h
> > +++ b/include/uapi/drm/drm_mode.h
> > @@ -81,6 +81,8 @@ extern "C" {
> >  #define DRM_MODE_PICTURE_ASPECT_NONE		0
> >  #define DRM_MODE_PICTURE_ASPECT_4_3		1
> >  #define DRM_MODE_PICTURE_ASPECT_16_9		2
> > +#define DRM_MODE_PICTURE_ASPECT_64_27		3
> > +#define DRM_MODE_PICTURE_ASPECT_256_135	4
> 
> Minor nit here, but in my tree the '4' above doesn't line up
> with the three previous definitions.  I downloaded the series as
> a mbox from patchwork.

r-b with that bikeshed addressed or not? Also any reason you didn't r-b
patch 3?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch