| Message ID | mHOtz80Wa-x3A5Lz5ETTM65VUMfW1j6b-iCuvIy1RzOM1EloHPqAb2MnbU8ygZi0ABaLrxuN6pzu0v3QRn83125C0bXuHoo-DQWWEd80fdw=@emersion.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm: add docs about the IN_FORMATS plane property | expand |
On Sun, Mar 29, 2020 at 02:45:08PM +0000, Simon Ser wrote: > This is a standard property attached to planes in drm_universal_plane_init > when drm_mode_config.allow_fb_modifiers is true. > > Signed-off-by: Simon Ser <contact@emersion.fr> > Cc: Daniel Vetter <daniel@ffwll.ch> > Cc: Daniel Stone <daniel@fooishbar.org> > --- > drivers/gpu/drm/drm_blend.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/drm_blend.c b/drivers/gpu/drm/drm_blend.c > index 121481f6aa71..88eedee018d3 100644 > --- a/drivers/gpu/drm/drm_blend.c > +++ b/drivers/gpu/drm/drm_blend.c > @@ -183,6 +183,12 @@ > * plane does not expose the "alpha" property, then this is > * assumed to be 1.0 > * > + * IN_FORMATS: > + * Blob property which contains the set of buffer format and modifier > + * pairs supported by this plane. The blob is a drm_format_modifier_blob > + * struct. Without this property the plane doesn't support buffers with > + * modifiers. Userspace cannot change this property. Feels mildly misplaced among the blending properties, but we don't (yet) have a section to describe all the modifer/pixel format stuff and how it's all supposed to work together. So for now probably as good as it gets. Merged to drm-misc-next, thanks for your patch. -Daniel > + * > * Note that all the property extensions described here apply either to the > * plane or the CRTC (e.g. for the background color, which currently is not > * exposed and assumed to be black). > -- > 2.26.0 > >
diff --git a/drivers/gpu/drm/drm_blend.c b/drivers/gpu/drm/drm_blend.c index 121481f6aa71..88eedee018d3 100644 --- a/drivers/gpu/drm/drm_blend.c +++ b/drivers/gpu/drm/drm_blend.c @@ -183,6 +183,12 @@ * plane does not expose the "alpha" property, then this is * assumed to be 1.0 * + * IN_FORMATS: + * Blob property which contains the set of buffer format and modifier + * pairs supported by this plane. The blob is a drm_format_modifier_blob + * struct. Without this property the plane doesn't support buffers with + * modifiers. Userspace cannot change this property. + * * Note that all the property extensions described here apply either to the * plane or the CRTC (e.g. for the background color, which currently is not * exposed and assumed to be black).
This is a standard property attached to planes in drm_universal_plane_init when drm_mode_config.allow_fb_modifiers is true. Signed-off-by: Simon Ser <contact@emersion.fr> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Daniel Stone <daniel@fooishbar.org> --- drivers/gpu/drm/drm_blend.c | 6 ++++++ 1 file changed, 6 insertions(+)