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, 5 insertions, 5 deletions

diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 0967cd9190a2..f61c0086415a 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -749,9 +749,9 @@ static const struct drm_crtc_funcs ltdc_crtc_funcs = {
  */
 
 static int ltdc_plane_atomic_check(struct drm_plane *plane,
-				   struct drm_plane_state *state)
+				   struct drm_plane_state *new_plane_state)
 {
-	struct drm_framebuffer *fb = state->fb;
+	struct drm_framebuffer *fb = new_plane_state->fb;
 	u32 src_w, src_h;
 
 	DRM_DEBUG_DRIVER("\n");
@@ -760,11 +760,11 @@ static int ltdc_plane_atomic_check(struct drm_plane *plane,
 		return 0;
 
 	/* convert src_ from 16:16 format */
-	src_w = state->src_w >> 16;
-	src_h = state->src_h >> 16;
+	src_w = new_plane_state->src_w >> 16;
+	src_h = new_plane_state->src_h >> 16;
 
 	/* Reject scaling */
-	if (src_w != state->crtc_w || src_h != state->crtc_h) {
+	if (src_w != new_plane_state->crtc_w || src_h != new_plane_state->crtc_h) {
 		DRM_ERROR("Scaling is not supported");
 		return -EINVAL;
 	}