drm: Rename plane atomic_check state names

Most drivers call the argument to the plane atomic_check hook simply
state, which is going to conflict with the global atomic state in a
later rework. Let's rename it to new_plane_state (or new_state depending
on the convention used in the driver).

This was done using the coccinelle script below, and built tested:

@ plane_atomic_func @
identifier helpers;
identifier func;
@@

 static const struct drm_plane_helper_funcs helpers = {
 	.atomic_check = func,
 };

@ has_old_state @
identifier plane_atomic_func.func;
identifier plane;
expression e;
symbol old_state;
symbol state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *state)
 {
 	...
 	struct drm_plane_state *old_state = e;
 	...
 }

@ depends on has_old_state @
identifier plane_atomic_func.func;
identifier plane;
symbol old_state;
@@

 func(struct drm_plane *plane,
-	struct drm_plane_state *state
+	struct drm_plane_state *new_state
     )
 {
 	<+...
-	state
+	new_state
	...+>
 }

@ has_state @
identifier plane_atomic_func.func;
identifier plane;
symbol state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *state)
 {
 	...
 }

@ depends on has_state @
identifier plane_atomic_func.func;
identifier plane;
symbol old_state;
@@

 func(struct drm_plane *plane,
-	struct drm_plane_state *state
+	struct drm_plane_state *new_plane_state
     )
 {
 	<+...
-	state
+	new_plane_state
	...+>
 }

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210219120032.260676-2-maxime@cerno.tech

1 files changed, 12 insertions, 12 deletions

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_plane.c b/drivers/gpu/drm/tilcdc/tilcdc_plane.c
index 2f681a713815..389c80a5873c 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_plane.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_plane.c
@@ -21,48 +21,48 @@ static const struct drm_plane_funcs tilcdc_plane_funcs = {
 };
 
 static int tilcdc_plane_atomic_check(struct drm_plane *plane,
-				     struct drm_plane_state *state)
+				     struct drm_plane_state *new_state)
 {
 	struct drm_crtc_state *crtc_state;
 	struct drm_plane_state *old_state = plane->state;
 	unsigned int pitch;
 
-	if (!state->crtc)
+	if (!new_state->crtc)
 		return 0;
 
-	if (WARN_ON(!state->fb))
+	if (WARN_ON(!new_state->fb))
 		return -EINVAL;
 
-	if (state->crtc_x || state->crtc_y) {
+	if (new_state->crtc_x || new_state->crtc_y) {
 		dev_err(plane->dev->dev, "%s: crtc position must be zero.",
 			__func__);
 		return -EINVAL;
 	}
 
-	crtc_state = drm_atomic_get_existing_crtc_state(state->state,
-							state->crtc);
+	crtc_state = drm_atomic_get_existing_crtc_state(new_state->state,
+							new_state->crtc);
 	/* we should have a crtc state if the plane is attached to a crtc */
 	if (WARN_ON(!crtc_state))
 		return 0;
 
-	if (crtc_state->mode.hdisplay != state->crtc_w ||
-	    crtc_state->mode.vdisplay != state->crtc_h) {
+	if (crtc_state->mode.hdisplay != new_state->crtc_w ||
+	    crtc_state->mode.vdisplay != new_state->crtc_h) {
 		dev_err(plane->dev->dev,
 			"%s: Size must match mode (%dx%d == %dx%d)", __func__,
 			crtc_state->mode.hdisplay, crtc_state->mode.vdisplay,
-			state->crtc_w, state->crtc_h);
+			new_state->crtc_w, new_state->crtc_h);
 		return -EINVAL;
 	}
 
 	pitch = crtc_state->mode.hdisplay *
-		state->fb->format->cpp[0];
-	if (state->fb->pitches[0] != pitch) {
+		new_state->fb->format->cpp[0];
+	if (new_state->fb->pitches[0] != pitch) {
 		dev_err(plane->dev->dev,
 			"Invalid pitch: fb and crtc widths must be the same");
 		return -EINVAL;
 	}
 
-	if (old_state->fb && state->fb->format != old_state->fb->format) {
+	if (old_state->fb && new_state->fb->format != old_state->fb->format) {
 		dev_dbg(plane->dev->dev,
 			"%s(): pixel format change requires mode_change\n",
 			__func__);