On Wed, Nov 9, 2016 at 4:36 AM, Daniel Vetter daniel.vetter@ffwll.ch wrote:
Not setting the fb modifiers flag is something different from setting the fb modifiers to 0 (which means explicitly linear). We kinda failed to document that properly. Spotted by Kristian.
Cc: hoegsberg@google.com Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch
Thanks, looks good.
Reviewed-by: Kristian H. Kristensen hoegsberg@google.com
include/uapi/drm/drm_fourcc.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index da49f69e4d7e..2fca7e1f6aab 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -172,6 +172,16 @@ extern "C" {
- authoritative source for all of these.
*/
+/*
- Linear Layout
- Just plain linear layout. Note that this is different from no
specifying any
- modifier (e.g. not setting DRM_MODE_FB_MODIFIERS in the DRM_ADDFB2
ioctl),
- which tells the driver to also take driver-internal information into
account
- and so might actually result in a tiled framebuffer.
- */
+#define DRM_FORMAT_MOD_LINEAR fourcc_mod_code(NONE, 0)
/* Intel framebuffer modifiers */
/*
2.7.4