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, 10 deletions

diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c
index be8eea3830c1..51ceaae9e7e8 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -77,32 +77,34 @@ static unsigned int check_pixel_format(struct drm_plane *plane, u32 format)
 }
 
 static int kmb_plane_atomic_check(struct drm_plane *plane,
-				  struct drm_plane_state *state)
+				  struct drm_plane_state *new_plane_state)
 {
 	struct drm_framebuffer *fb;
 	int ret;
 	struct drm_crtc_state *crtc_state;
 	bool can_position;
 
-	fb = state->fb;
-	if (!fb || !state->crtc)
+	fb = new_plane_state->fb;
+	if (!fb || !new_plane_state->crtc)
 		return 0;
 
 	ret = check_pixel_format(plane, fb->format->format);
 	if (ret)
 		return ret;
 
-	if (state->crtc_w > KMB_MAX_WIDTH || state->crtc_h > KMB_MAX_HEIGHT)
+	if (new_plane_state->crtc_w > KMB_MAX_WIDTH || new_plane_state->crtc_h > KMB_MAX_HEIGHT)
 		return -EINVAL;
-	if (state->crtc_w < KMB_MIN_WIDTH || state->crtc_h < KMB_MIN_HEIGHT)
+	if (new_plane_state->crtc_w < KMB_MIN_WIDTH || new_plane_state->crtc_h < KMB_MIN_HEIGHT)
 		return -EINVAL;
 	can_position = (plane->type == DRM_PLANE_TYPE_OVERLAY);
 	crtc_state =
-		drm_atomic_get_existing_crtc_state(state->state, state->crtc);
-	return drm_atomic_helper_check_plane_state(state, crtc_state,
-						 DRM_PLANE_HELPER_NO_SCALING,
-						 DRM_PLANE_HELPER_NO_SCALING,
-						 can_position, true);
+		drm_atomic_get_existing_crtc_state(new_plane_state->state,
+						   new_plane_state->crtc);
+	return drm_atomic_helper_check_plane_state(new_plane_state,
+						   crtc_state,
+						   DRM_PLANE_HELPER_NO_SCALING,
+						   DRM_PLANE_HELPER_NO_SCALING,
+						   can_position, true);
 }
 
 static void kmb_plane_atomic_disable(struct drm_plane *plane,