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, 3 insertions, 3 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index b29afced7374..009a62978fbc 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -228,14 +228,14 @@ exynos_drm_plane_check_size(const struct exynos_drm_plane_config *config,
 }
 
 static int exynos_plane_atomic_check(struct drm_plane *plane,
-				     struct drm_plane_state *state)
+				     struct drm_plane_state *new_plane_state)
 {
 	struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
 	struct exynos_drm_plane_state *exynos_state =
-						to_exynos_plane_state(state);
+						to_exynos_plane_state(new_plane_state);
 	int ret = 0;
 
-	if (!state->crtc || !state->fb)
+	if (!new_plane_state->crtc || !new_plane_state->fb)
 		return 0;
 
 	/* translate state into exynos_state */