diff options
Diffstat (limited to 'drivers/gpu/drm/drm_plane_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_plane_helper.c | 74 |
1 files changed, 53 insertions, 21 deletions
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c index 838b32b70bce..c7785967f5bf 100644 --- a/drivers/gpu/drm/drm_plane_helper.c +++ b/drivers/gpu/drm/drm_plane_helper.c @@ -145,13 +145,36 @@ static int drm_plane_helper_check_update(struct drm_plane *plane, return 0; } -static int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, - struct drm_framebuffer *fb, - int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h, - struct drm_modeset_acquire_ctx *ctx) +/** + * drm_plane_helper_update_primary - Helper for updating primary planes + * @plane: plane to update + * @crtc: the plane's new CRTC + * @fb: the plane's new framebuffer + * @crtc_x: x coordinate within CRTC + * @crtc_y: y coordinate within CRTC + * @crtc_w: width coordinate within CRTC + * @crtc_h: height coordinate within CRTC + * @src_x: x coordinate within source + * @src_y: y coordinate within source + * @src_w: width coordinate within source + * @src_h: height coordinate within source + * @ctx: modeset locking context + * + * This helper validates the given parameters and updates the primary plane. + * + * This function is only useful for non-atomic modesetting. Don't use + * it in new drivers. + * + * Returns: + * Zero on success, or an errno code otherwise. + */ +int drm_plane_helper_update_primary(struct drm_plane *plane, struct drm_crtc *crtc, + struct drm_framebuffer *fb, + int crtc_x, int crtc_y, + unsigned int crtc_w, unsigned int crtc_h, + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h, + struct drm_modeset_acquire_ctx *ctx) { struct drm_mode_set set = { .crtc = crtc, @@ -179,8 +202,8 @@ static int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *c ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, DRM_MODE_ROTATE_0, - DRM_PLANE_HELPER_NO_SCALING, - DRM_PLANE_HELPER_NO_SCALING, + DRM_PLANE_NO_SCALING, + DRM_PLANE_NO_SCALING, false, false, &visible); if (ret) return ret; @@ -218,31 +241,40 @@ static int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *c kfree(connector_list); return ret; } +EXPORT_SYMBOL(drm_plane_helper_update_primary); -static int drm_primary_helper_disable(struct drm_plane *plane, - struct drm_modeset_acquire_ctx *ctx) +/** + * drm_plane_helper_disable_primary - Helper for disabling primary planes + * @plane: plane to disable + * @ctx: modeset locking context + * + * This helper returns an error when trying to disable the primary + * plane. + * + * This function is only useful for non-atomic modesetting. Don't use + * it in new drivers. + * + * Returns: + * An errno code. + */ +int drm_plane_helper_disable_primary(struct drm_plane *plane, + struct drm_modeset_acquire_ctx *ctx) { return -EINVAL; } +EXPORT_SYMBOL(drm_plane_helper_disable_primary); /** - * drm_primary_helper_destroy() - Helper for primary plane destruction + * drm_plane_helper_destroy() - Helper for primary plane destruction * @plane: plane to destroy * * Provides a default plane destroy handler for primary planes. This handler * is called during CRTC destruction. We disable the primary plane, remove * it from the DRM plane list, and deallocate the plane structure. */ -void drm_primary_helper_destroy(struct drm_plane *plane) +void drm_plane_helper_destroy(struct drm_plane *plane) { drm_plane_cleanup(plane); kfree(plane); } -EXPORT_SYMBOL(drm_primary_helper_destroy); - -const struct drm_plane_funcs drm_primary_helper_funcs = { - .update_plane = drm_primary_helper_update, - .disable_plane = drm_primary_helper_disable, - .destroy = drm_primary_helper_destroy, -}; -EXPORT_SYMBOL(drm_primary_helper_funcs); +EXPORT_SYMBOL(drm_plane_helper_destroy); |