drm/sun4i: Unify sun8i_*_layer structs

These structs are identical, use a single struct to represent private
data for the DRM plane. This is a preparation for configuring layer
routing from the CRTC (mixer) instead of current approach of setting
up routing from individual layer's atomic_update callback.
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20240224150604.3855534-2-megi@xff.czSigned-off-by: Maxime Ripard <mripard@kernel.org>

drivers/gpu/drm/sun4i/sun8i_mixer.c

@@ -271,7 +271,7 @@ static struct drm_plane **sun8i_layers_init(struct drm_device *drm,
 		return ERR_PTR(-ENOMEM);
 
 	for (i = 0; i < mixer->cfg->vi_num; i++) {
-		struct sun8i_vi_layer *layer;
+		struct sun8i_layer *layer;
 
 		layer = sun8i_vi_layer_init_one(drm, mixer, i);
 		if (IS_ERR(layer)) {
@@ -284,7 +284,7 @@ static struct drm_plane **sun8i_layers_init(struct drm_device *drm,
 	}
 
 	for (i = 0; i < mixer->cfg->ui_num; i++) {
-		struct sun8i_ui_layer *layer;
+		struct sun8i_layer *layer;
 
 		layer = sun8i_ui_layer_init_one(drm, mixer, i);
 		if (IS_ERR(layer)) {

drivers/gpu/drm/sun4i/sun8i_mixer.h

@@ -9,6 +9,7 @@
 #include <linux/clk.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>
+#include <drm/drm_plane.h>
 
 #include "sunxi_engine.h"
 
@@ -185,6 +186,19 @@ struct sun8i_mixer {
 	struct clk			*mod_clk;
 };
 
+struct sun8i_layer {
+	struct drm_plane	plane;
+	struct sun8i_mixer	*mixer;
+	int			channel;
+	int			overlay;
+};
+
+static inline struct sun8i_layer *
+plane_to_sun8i_layer(struct drm_plane *plane)
+{
+	return container_of(plane, struct sun8i_layer, plane);
+}
+
 static inline struct sun8i_mixer *
 engine_to_sun8i_mixer(struct sunxi_engine *engine)
 {

drivers/gpu/drm/sun4i/sun8i_ui_layer.c

@@ -232,7 +232,7 @@ static int sun8i_ui_layer_atomic_check(struct drm_plane *plane,
 {
 	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
 										 plane);
-	struct sun8i_ui_layer *layer = plane_to_sun8i_ui_layer(plane);
+	struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
 	struct drm_crtc *crtc = new_plane_state->crtc;
 	struct drm_crtc_state *crtc_state;
 	int min_scale, max_scale;
@@ -264,7 +264,7 @@ static void sun8i_ui_layer_atomic_disable(struct drm_plane *plane,
 {
 	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
 									   plane);
-	struct sun8i_ui_layer *layer = plane_to_sun8i_ui_layer(plane);
+	struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
 	unsigned int old_zpos = old_state->normalized_zpos;
 	struct sun8i_mixer *mixer = layer->mixer;
 
@@ -279,7 +279,7 @@ static void sun8i_ui_layer_atomic_update(struct drm_plane *plane,
 									   plane);
 	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
 									   plane);
-	struct sun8i_ui_layer *layer = plane_to_sun8i_ui_layer(plane);
+	struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
 	unsigned int zpos = new_state->normalized_zpos;
 	unsigned int old_zpos = old_state->normalized_zpos;
 	struct sun8i_mixer *mixer = layer->mixer;
@@ -345,13 +345,13 @@ static const uint64_t sun8i_layer_modifiers[] = {
 	DRM_FORMAT_MOD_INVALID
 };
 
-struct sun8i_ui_layer *sun8i_ui_layer_init_one(struct drm_device *drm,
-					       struct sun8i_mixer *mixer,
-					       int index)
+struct sun8i_layer *sun8i_ui_layer_init_one(struct drm_device *drm,
+					    struct sun8i_mixer *mixer,
+					    int index)
 {
 	enum drm_plane_type type = DRM_PLANE_TYPE_OVERLAY;
 	int channel = mixer->cfg->vi_num + index;
-	struct sun8i_ui_layer *layer;
+	struct sun8i_layer *layer;
 	unsigned int plane_cnt;
 	int ret;
 

drivers/gpu/drm/sun4i/sun8i_ui_layer.h

@@ -47,21 +47,9 @@
 #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_COMBINED	((2) << 1)
 
 struct sun8i_mixer;
+struct sun8i_layer;
 
-struct sun8i_ui_layer {
-	struct drm_plane	plane;
-	struct sun8i_mixer	*mixer;
-	int			channel;
-	int			overlay;
-};
-
-static inline struct sun8i_ui_layer *
-plane_to_sun8i_ui_layer(struct drm_plane *plane)
-{
-	return container_of(plane, struct sun8i_ui_layer, plane);
-}
-
-struct sun8i_ui_layer *sun8i_ui_layer_init_one(struct drm_device *drm,
-					       struct sun8i_mixer *mixer,
-					       int index);
+struct sun8i_layer *sun8i_ui_layer_init_one(struct drm_device *drm,
+					    struct sun8i_mixer *mixer,
+					    int index);
 #endif /* _SUN8I_UI_LAYER_H_ */

drivers/gpu/drm/sun4i/sun8i_vi_layer.c

@@ -366,7 +366,7 @@ static int sun8i_vi_layer_atomic_check(struct drm_plane *plane,
 {
 	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
 										 plane);
-	struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
+	struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
 	struct drm_crtc *crtc = new_plane_state->crtc;
 	struct drm_crtc_state *crtc_state;
 	int min_scale, max_scale;
@@ -398,7 +398,7 @@ static void sun8i_vi_layer_atomic_disable(struct drm_plane *plane,
 {
 	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
 									   plane);
-	struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
+	struct sun8i_layer *layer = plane_to_sun8i_vi_layer(plane);
 	unsigned int old_zpos = old_state->normalized_zpos;
 	struct sun8i_mixer *mixer = layer->mixer;
 
@@ -413,7 +413,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
 									   plane);
 	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
 									   plane);
-	struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
+	struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
 	unsigned int zpos = new_state->normalized_zpos;
 	unsigned int old_zpos = old_state->normalized_zpos;
 	struct sun8i_mixer *mixer = layer->mixer;
@@ -539,14 +539,14 @@ static const uint64_t sun8i_layer_modifiers[] = {
 	DRM_FORMAT_MOD_INVALID
 };
 
-struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
-					       struct sun8i_mixer *mixer,
-					       int index)
+struct sun8i_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
+					    struct sun8i_mixer *mixer,
+					    int index)
 {
 	enum drm_plane_type type = DRM_PLANE_TYPE_OVERLAY;
 	u32 supported_encodings, supported_ranges;
 	unsigned int plane_cnt, format_count;
-	struct sun8i_vi_layer *layer;
+	struct sun8i_layer *layer;
 	const u32 *formats;
 	int ret;
 

drivers/gpu/drm/sun4i/sun8i_vi_layer.h

@@ -52,21 +52,9 @@
 #define SUN8I_MIXER_CHAN_VI_DS_M(x)			((x) << 0)
 
 struct sun8i_mixer;
+struct sun8i_layer;
 
-struct sun8i_vi_layer {
-	struct drm_plane	plane;
-	struct sun8i_mixer	*mixer;
-	int			channel;
-	int			overlay;
-};
-
-static inline struct sun8i_vi_layer *
-plane_to_sun8i_vi_layer(struct drm_plane *plane)
-{
-	return container_of(plane, struct sun8i_vi_layer, plane);
-}
-
-struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
-					       struct sun8i_mixer *mixer,
-					       int index);
+struct sun8i_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
+					    struct sun8i_mixer *mixer,
+					    int index);
 #endif /* _SUN8I_VI_LAYER_H_ */