drm: Use DRM_ROTATE_MASK and DRM_REFLECT_MASK

Avoid magic numbers and use the introduced defines.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c

@@ -633,7 +633,7 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
 		if (!state->bpp[i])
 			return -EINVAL;
 
-		switch (state->base.rotation & 0xf) {
+		switch (state->base.rotation & DRM_ROTATE_MASK) {
 		case BIT(DRM_ROTATE_90):
 			offset = ((y_offset + state->src_y + patched_src_w - 1) /
 				  ydiv) * fb->pitches[i];

drivers/gpu/drm/drm_crtc.c

@@ -5629,7 +5629,8 @@ unsigned int drm_rotation_simplify(unsigned int rotation,
 {
 	if (rotation & ~supported_rotations) {
 		rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y);
-		rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4);
+		rotation = (rotation & DRM_REFLECT_MASK) |
+		           BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4);
 	}
 
 	return rotation;

drivers/gpu/drm/drm_rect.c

@@ -330,7 +330,7 @@ void drm_rect_rotate(struct drm_rect *r,
 		}
 	}
 
-	switch (rotation & 0xf) {
+	switch (rotation & DRM_ROTATE_MASK) {
 	case BIT(DRM_ROTATE_0):
 		break;
 	case BIT(DRM_ROTATE_90):
@@ -390,7 +390,7 @@ void drm_rect_rotate_inv(struct drm_rect *r,
 {
 	struct drm_rect tmp;
 
-	switch (rotation & 0xf) {
+	switch (rotation & DRM_ROTATE_MASK) {
 	case BIT(DRM_ROTATE_0):
 		break;
 	case BIT(DRM_ROTATE_90):

drivers/gpu/drm/omapdrm/omap_fb.c

@@ -171,7 +171,7 @@ void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
 		uint32_t w = win->src_w;
 		uint32_t h = win->src_h;
 
-		switch (win->rotation & 0xf) {
+		switch (win->rotation & DRM_ROTATE_MASK) {
 		default:
 			dev_err(fb->dev->dev, "invalid rotation: %02x",
 					(uint32_t)win->rotation);
@@ -209,7 +209,7 @@ void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
 		info->rotation_type = OMAP_DSS_ROT_TILER;
 		info->screen_width  = omap_gem_tiled_stride(plane->bo, orient);
 	} else {
-		switch (win->rotation & 0xf) {
+		switch (win->rotation & DRM_ROTATE_MASK) {
 		case 0:
 		case BIT(DRM_ROTATE_0):
 			/* OK */

drivers/gpu/drm/omapdrm/omap_plane.c

@@ -108,7 +108,7 @@ static void omap_plane_atomic_update(struct drm_plane *plane,
 	win.src_x = state->src_x >> 16;
 	win.src_y = state->src_y >> 16;
 
-	switch (state->rotation & 0xf) {
+	switch (state->rotation & DRM_ROTATE_MASK) {
 	case BIT(DRM_ROTATE_90):
 	case BIT(DRM_ROTATE_270):
 		win.src_w = state->src_h >> 16;