It's for legacy drivers only (atomic ones should use drm_atomic_helper_check_plane_state() instead), and there's no users left except the one in the primary plane helpers.
Signed-off-by: Daniel Vetter daniel.vetter@intel.com --- drivers/gpu/drm/drm_plane_helper.c | 49 +++++++----------------------- include/drm/drm_plane_helper.h | 11 ------- 2 files changed, 11 insertions(+), 49 deletions(-)
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c index 965286231600..33b3e6892787 100644 --- a/drivers/gpu/drm/drm_plane_helper.c +++ b/drivers/gpu/drm/drm_plane_helper.c @@ -100,43 +100,17 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc, return count; }
-/** - * drm_plane_helper_check_update() - Check plane update for validity - * @plane: plane object to update - * @crtc: owning CRTC of owning plane - * @fb: framebuffer to flip onto plane - * @src: source coordinates in 16.16 fixed point - * @dst: integer destination coordinates - * @rotation: plane rotation - * @min_scale: minimum @src:@dest scaling factor in 16.16 fixed point - * @max_scale: maximum @src:@dest scaling factor in 16.16 fixed point - * @can_position: is it legal to position the plane such that it - * doesn't cover the entire crtc? This will generally - * only be false for primary planes. - * @can_update_disabled: can the plane be updated while the crtc - * is disabled? - * @visible: output parameter indicating whether plane is still visible after - * clipping - * - * Checks that a desired plane update is valid. Drivers that provide - * their own plane handling rather than helper-provided implementations may - * still wish to call this function to avoid duplication of error checking - * code. - * - * RETURNS: - * Zero if update appears valid, error code on failure - */ -int drm_plane_helper_check_update(struct drm_plane *plane, - struct drm_crtc *crtc, - struct drm_framebuffer *fb, - struct drm_rect *src, - struct drm_rect *dst, - unsigned int rotation, - int min_scale, - int max_scale, - bool can_position, - bool can_update_disabled, - bool *visible) +static int drm_plane_helper_check_update(struct drm_plane *plane, + struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_rect *src, + struct drm_rect *dst, + unsigned int rotation, + int min_scale, + int max_scale, + bool can_position, + bool can_update_disabled, + bool *visible) { struct drm_plane_state plane_state = { .plane = plane, @@ -173,7 +147,6 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
return 0; } -EXPORT_SYMBOL(drm_plane_helper_check_update);
/** * drm_primary_helper_update() - Helper for primary plane update diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h index 1999781781c7..7bff930b8b10 100644 --- a/include/drm/drm_plane_helper.h +++ b/include/drm/drm_plane_helper.h @@ -38,17 +38,6 @@ */ #define DRM_PLANE_HELPER_NO_SCALING (1<<16)
-int drm_plane_helper_check_update(struct drm_plane *plane, - struct drm_crtc *crtc, - struct drm_framebuffer *fb, - struct drm_rect *src, - struct drm_rect *dest, - unsigned int rotation, - int min_scale, - int max_scale, - bool can_position, - bool can_update_disabled, - bool *visible); int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, struct drm_framebuffer *fb,