diff options
-rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 94 | ||||
-rw-r--r-- | include/drm/drm_crtc.h | 9 |
2 files changed, 91 insertions, 12 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index cad2a7e5166f..df9bf3c9206e 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -343,9 +343,10 @@ static int __drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc * * The @primary and @cursor planes are only relevant for legacy uAPI, see * &drm_crtc.primary and &drm_crtc.cursor. * - * Note: consider using drmm_crtc_alloc_with_planes() instead of - * drm_crtc_init_with_planes() to let the DRM managed resource infrastructure - * take care of cleanup and deallocation. + * Note: consider using drmm_crtc_alloc_with_planes() or + * drmm_crtc_init_with_planes() instead of drm_crtc_init_with_planes() + * to let the DRM managed resource infrastructure take care of cleanup + * and deallocation. * * Returns: * Zero on success, error code on failure. @@ -370,14 +371,88 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, } EXPORT_SYMBOL(drm_crtc_init_with_planes); -static void drmm_crtc_alloc_with_planes_cleanup(struct drm_device *dev, - void *ptr) +static void drmm_crtc_init_with_planes_cleanup(struct drm_device *dev, + void *ptr) { struct drm_crtc *crtc = ptr; drm_crtc_cleanup(crtc); } +__printf(6, 0) +static int __drmm_crtc_init_with_planes(struct drm_device *dev, + struct drm_crtc *crtc, + struct drm_plane *primary, + struct drm_plane *cursor, + const struct drm_crtc_funcs *funcs, + const char *name, + va_list args) +{ + int ret; + + drm_WARN_ON(dev, funcs && funcs->destroy); + + ret = __drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs, + name, args); + if (ret) + return ret; + + ret = drmm_add_action_or_reset(dev, drmm_crtc_init_with_planes_cleanup, + crtc); + if (ret) + return ret; + + return 0; +} + +/** + * drmm_crtc_init_with_planes - Initialise a new CRTC object with + * specified primary and cursor planes. + * @dev: DRM device + * @crtc: CRTC object to init + * @primary: Primary plane for CRTC + * @cursor: Cursor plane for CRTC + * @funcs: callbacks for the new CRTC + * @name: printf style format string for the CRTC name, or NULL for default name + * + * Inits a new object created as base part of a driver crtc object. Drivers + * should use this function instead of drm_crtc_init(), which is only provided + * for backwards compatibility with drivers which do not yet support universal + * planes). For really simple hardware which has only 1 plane look at + * drm_simple_display_pipe_init() instead. + * + * Cleanup is automatically handled through registering + * drmm_crtc_cleanup() with drmm_add_action(). The crtc structure should + * be allocated with drmm_kzalloc(). + * + * The @drm_crtc_funcs.destroy hook must be NULL. + * + * The @primary and @cursor planes are only relevant for legacy uAPI, see + * &drm_crtc.primary and &drm_crtc.cursor. + * + * Returns: + * Zero on success, error code on failure. + */ +int drmm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, + struct drm_plane *primary, + struct drm_plane *cursor, + const struct drm_crtc_funcs *funcs, + const char *name, ...) +{ + va_list ap; + int ret; + + va_start(ap, name); + ret = __drmm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs, + name, ap); + va_end(ap); + if (ret) + return ret; + + return 0; +} +EXPORT_SYMBOL(drmm_crtc_init_with_planes); + void *__drmm_crtc_alloc_with_planes(struct drm_device *dev, size_t size, size_t offset, struct drm_plane *primary, @@ -400,17 +475,12 @@ void *__drmm_crtc_alloc_with_planes(struct drm_device *dev, crtc = container + offset; va_start(ap, name); - ret = __drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs, - name, ap); + ret = __drmm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs, + name, ap); va_end(ap); if (ret) return ERR_PTR(ret); - ret = drmm_add_action_or_reset(dev, drmm_crtc_alloc_with_planes_cleanup, - crtc); - if (ret) - return ERR_PTR(ret); - return container; } EXPORT_SYMBOL(__drmm_crtc_alloc_with_planes); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index ffc1cde331d3..8e1cbc75143e 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1216,6 +1216,15 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_plane *cursor, const struct drm_crtc_funcs *funcs, const char *name, ...); + +__printf(6, 7) +int drmm_crtc_init_with_planes(struct drm_device *dev, + struct drm_crtc *crtc, + struct drm_plane *primary, + struct drm_plane *cursor, + const struct drm_crtc_funcs *funcs, + const char *name, ...); + void drm_crtc_cleanup(struct drm_crtc *crtc); __printf(7, 8) |