| Message ID | 1427943589-6254-2-git-send-email-chandra.konduru@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Apr 01, 2015 at 07:59:30PM -0700, Chandra Konduru wrote: > Adding drm helper function to return plane pointer from index where > index is a returned by drm_plane_index. > > v2: > -avoided nested loop by adding loop count (Daniel) > > Signed-off-by: Chandra Konduru <chandra.konduru@intel.com> This should just have a "drm:" headline prefix and should have a Cc: to dri-devel here since it's touching DRM core code. Otherwise, Reviewed-by: Matt Roper <matthew.d.roper@intel.com> > --- > drivers/gpu/drm/drm_crtc.c | 22 ++++++++++++++++++++++ > include/drm/drm_crtc.h | 1 + > 2 files changed, 23 insertions(+) > > diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c > index d576a4d..0f0159b 100644 > --- a/drivers/gpu/drm/drm_crtc.c > +++ b/drivers/gpu/drm/drm_crtc.c > @@ -1289,6 +1289,28 @@ unsigned int drm_plane_index(struct drm_plane *plane) > EXPORT_SYMBOL(drm_plane_index); > > /** > + * drm_plane_from_index - find the registered plane at an index > + * @idx: index of registered plane to find for > + * > + * Given a plane index, return the registered plane from DRM device's > + * list of planes with matching index. > + */ > +struct drm_plane * > +drm_plane_from_index(struct drm_device *dev, int idx) > +{ > + struct drm_plane *plane; > + unsigned int i = 0; > + > + list_for_each_entry(plane, &dev->mode_config.plane_list, head) { > + if (i == idx) > + return plane; > + i++; > + } > + return NULL; > +} > +EXPORT_SYMBOL(drm_plane_from_index); > + > +/** > * drm_plane_force_disable - Forcibly disable a plane > * @plane: plane to disable > * > diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h > index 7b5c661..6b30036 100644 > --- a/include/drm/drm_crtc.h > +++ b/include/drm/drm_crtc.h > @@ -1264,6 +1264,7 @@ extern int drm_plane_init(struct drm_device *dev, > bool is_primary); > extern void drm_plane_cleanup(struct drm_plane *plane); > extern unsigned int drm_plane_index(struct drm_plane *plane); > +extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx); > extern void drm_plane_force_disable(struct drm_plane *plane); > extern int drm_plane_check_pixel_format(const struct drm_plane *plane, > u32 format); > -- > 1.7.9.5 >
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index d576a4d..0f0159b 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1289,6 +1289,28 @@ unsigned int drm_plane_index(struct drm_plane *plane) EXPORT_SYMBOL(drm_plane_index); /** + * drm_plane_from_index - find the registered plane at an index + * @idx: index of registered plane to find for + * + * Given a plane index, return the registered plane from DRM device's + * list of planes with matching index. + */ +struct drm_plane * +drm_plane_from_index(struct drm_device *dev, int idx) +{ + struct drm_plane *plane; + unsigned int i = 0; + + list_for_each_entry(plane, &dev->mode_config.plane_list, head) { + if (i == idx) + return plane; + i++; + } + return NULL; +} +EXPORT_SYMBOL(drm_plane_from_index); + +/** * drm_plane_force_disable - Forcibly disable a plane * @plane: plane to disable * diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 7b5c661..6b30036 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1264,6 +1264,7 @@ extern int drm_plane_init(struct drm_device *dev, bool is_primary); extern void drm_plane_cleanup(struct drm_plane *plane); extern unsigned int drm_plane_index(struct drm_plane *plane); +extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx); extern void drm_plane_force_disable(struct drm_plane *plane); extern int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format);
Adding drm helper function to return plane pointer from index where index is a returned by drm_plane_index. v2: -avoided nested loop by adding loop count (Daniel) Signed-off-by: Chandra Konduru <chandra.konduru@intel.com> --- drivers/gpu/drm/drm_crtc.c | 22 ++++++++++++++++++++++ include/drm/drm_crtc.h | 1 + 2 files changed, 23 insertions(+)