drm/ast: Style cleanups in plane code

Rename some of the variables in the plane code to better reflect the
old and new state during checks and updates. Change some indention as
well. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Tested-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221013112923.769-7-tzimmermann@suse.de

1 files changed, 45 insertions, 59 deletions

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 00257db864ba..59c70fd5b925 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -579,16 +579,15 @@ static int ast_primary_plane_helper_atomic_check(struct drm_plane *plane,
 						 struct drm_atomic_state *state)
 {
 	struct drm_device *dev = plane->dev;
-	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
-										 plane);
-	struct drm_crtc_state *crtc_state = NULL;
-	struct ast_crtc_state *ast_crtc_state;
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
+	struct drm_crtc_state *new_crtc_state = NULL;
+	struct ast_crtc_state *new_ast_crtc_state;
 	int ret;
 
 	if (new_plane_state->crtc)
-		crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
+		new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
 
-	ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
+	ret = drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
 						  DRM_PLANE_NO_SCALING,
 						  DRM_PLANE_NO_SCALING,
 						  false, true);
@@ -601,30 +600,28 @@ static int ast_primary_plane_helper_atomic_check(struct drm_plane *plane,
 			return 0;
 	}
 
-	ast_crtc_state = to_ast_crtc_state(crtc_state);
+	new_ast_crtc_state = to_ast_crtc_state(new_crtc_state);
 
-	ast_crtc_state->format = new_plane_state->fb->format;
+	new_ast_crtc_state->format = new_plane_state->fb->format;
 
 	return 0;
 }
 
-static void
-ast_primary_plane_helper_atomic_update(struct drm_plane *plane,
-				       struct drm_atomic_state *state)
+static void ast_primary_plane_helper_atomic_update(struct drm_plane *plane,
+						   struct drm_atomic_state *state)
 {
-	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
-									   plane);
 	struct drm_device *dev = plane->dev;
 	struct ast_private *ast = to_ast_private(dev);
-	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
-									   plane);
+	struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
+	struct drm_framebuffer *fb = plane_state->fb;
+	struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane);
+	struct drm_framebuffer *old_fb = old_plane_state->fb;
 	struct drm_gem_vram_object *gbo;
 	s64 gpu_addr;
-	struct drm_framebuffer *fb = new_state->fb;
-	struct drm_framebuffer *old_fb = old_state->fb;
 
 	if (!old_fb || (fb->format != old_fb->format)) {
-		struct drm_crtc_state *crtc_state = new_state->crtc->state;
+		struct drm_crtc *crtc = plane_state->crtc;
+		struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
 		struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
 		struct ast_vbios_mode_info *vbios_mode_info = &ast_crtc_state->vbios_mode_info;
 
@@ -643,9 +640,8 @@ ast_primary_plane_helper_atomic_update(struct drm_plane *plane,
 	ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x00);
 }
 
-static void
-ast_primary_plane_helper_atomic_disable(struct drm_plane *plane,
-					struct drm_atomic_state *state)
+static void ast_primary_plane_helper_atomic_disable(struct drm_plane *plane,
+						    struct drm_atomic_state *state)
 {
 	struct ast_private *ast = to_ast_private(plane->dev);
 
@@ -803,39 +799,36 @@ static const uint32_t ast_cursor_plane_formats[] = {
 static int ast_cursor_plane_helper_atomic_check(struct drm_plane *plane,
 						struct drm_atomic_state *state)
 {
-	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
-										 plane);
-	struct drm_framebuffer *fb = new_plane_state->fb;
-	struct drm_crtc_state *crtc_state = NULL;
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
+	struct drm_framebuffer *new_fb = new_plane_state->fb;
+	struct drm_crtc_state *new_crtc_state = NULL;
 	int ret;
 
 	if (new_plane_state->crtc)
-		crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
+		new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
 
-	ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
+	ret = drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
 						  DRM_PLANE_NO_SCALING,
 						  DRM_PLANE_NO_SCALING,
 						  true, true);
 	if (ret || !new_plane_state->visible)
 		return ret;
 
-	if (fb->width > AST_MAX_HWC_WIDTH || fb->height > AST_MAX_HWC_HEIGHT)
+	if (new_fb->width > AST_MAX_HWC_WIDTH || new_fb->height > AST_MAX_HWC_HEIGHT)
 		return -EINVAL;
 
 	return 0;
 }
 
-static void
-ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
-				      struct drm_atomic_state *state)
+static void ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
+						  struct drm_atomic_state *state)
 {
 	struct ast_plane *ast_plane = to_ast_plane(plane);
-	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
-									   plane);
-	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
-									   plane);
-	struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(new_state);
-	struct drm_framebuffer *fb = new_state->fb;
+	struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
+	struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
+	struct drm_framebuffer *fb = plane_state->fb;
+	struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane);
+	struct drm_framebuffer *old_fb = old_plane_state->fb;
 	struct ast_private *ast = to_ast_private(plane->dev);
 	struct iosys_map dst_map = ast_plane->map;
 	u64 dst_off = ast_plane->off;
@@ -858,32 +851,32 @@ ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
 
 	ast_update_cursor_image(dst, src, fb->width, fb->height);
 
-	if (new_state->fb != old_state->fb)
+	if (fb != old_fb)
 		ast_set_cursor_base(ast, dst_off);
 
 	/*
 	 * Update location in HWC signature and registers.
 	 */
 
-	writel(new_state->crtc_x, sig + AST_HWC_SIGNATURE_X);
-	writel(new_state->crtc_y, sig + AST_HWC_SIGNATURE_Y);
+	writel(plane_state->crtc_x, sig + AST_HWC_SIGNATURE_X);
+	writel(plane_state->crtc_y, sig + AST_HWC_SIGNATURE_Y);
 
 	offset_x = AST_MAX_HWC_WIDTH - fb->width;
 	offset_y = AST_MAX_HWC_HEIGHT - fb->height;
 
-	if (new_state->crtc_x < 0) {
-		x_offset = (-new_state->crtc_x) + offset_x;
+	if (plane_state->crtc_x < 0) {
+		x_offset = (-plane_state->crtc_x) + offset_x;
 		x = 0;
 	} else {
 		x_offset = offset_x;
-		x = new_state->crtc_x;
+		x = plane_state->crtc_x;
 	}
-	if (new_state->crtc_y < 0) {
-		y_offset = (-new_state->crtc_y) + offset_y;
+	if (plane_state->crtc_y < 0) {
+		y_offset = (-plane_state->crtc_y) + offset_y;
 		y = 0;
 	} else {
 		y_offset = offset_y;
-		y = new_state->crtc_y;
+		y = plane_state->crtc_y;
 	}
 
 	ast_set_cursor_location(ast, x, y, x_offset, y_offset);
@@ -892,9 +885,8 @@ ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
 	ast_set_cursor_enabled(ast, true);
 }
 
-static void
-ast_cursor_plane_helper_atomic_disable(struct drm_plane *plane,
-				       struct drm_atomic_state *state)
+static void ast_cursor_plane_helper_atomic_disable(struct drm_plane *plane,
+						   struct drm_atomic_state *state)
 {
 	struct ast_private *ast = to_ast_private(plane->dev);
 
@@ -1204,13 +1196,11 @@ ast_crtc_helper_atomic_flush(struct drm_crtc *crtc,
 		ast_dp_set_mode(crtc, vbios_mode_info);
 }
 
-static void
-ast_crtc_helper_atomic_enable(struct drm_crtc *crtc,
-			      struct drm_atomic_state *state)
+static void ast_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state)
 {
 	struct drm_device *dev = crtc->dev;
 	struct ast_private *ast = to_ast_private(dev);
-	struct drm_crtc_state *crtc_state = crtc->state;
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
 	struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
 	struct ast_vbios_mode_info *vbios_mode_info =
 		&ast_crtc_state->vbios_mode_info;
@@ -1227,12 +1217,9 @@ ast_crtc_helper_atomic_enable(struct drm_crtc *crtc,
 	ast_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
 }
 
-static void
-ast_crtc_helper_atomic_disable(struct drm_crtc *crtc,
-			       struct drm_atomic_state *state)
+static void ast_crtc_helper_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state)
 {
-	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
-									      crtc);
+	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc);
 	struct drm_device *dev = crtc->dev;
 	struct ast_private *ast = to_ast_private(dev);
 
@@ -1787,7 +1774,6 @@ int ast_mode_config_init(struct ast_private *ast)
 
 	dev->mode_config.helper_private = &ast_mode_config_helper_funcs;
 
-
 	ret = ast_primary_plane_init(ast);
 	if (ret)
 		return ret;