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, 2 deletions

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
index 0356474ad6f6..f83bfc0794ab 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
@@ -434,12 +434,13 @@ nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
 }
 
 static int
-nv50_wndw_atomic_check(struct drm_plane *plane, struct drm_plane_state *state)
+nv50_wndw_atomic_check(struct drm_plane *plane,
+		       struct drm_plane_state *new_plane_state)
 {
 	struct nouveau_drm *drm = nouveau_drm(plane->dev);
 	struct nv50_wndw *wndw = nv50_wndw(plane);
 	struct nv50_wndw_atom *armw = nv50_wndw_atom(wndw->plane.state);
-	struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
+	struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
 	struct nv50_head_atom *harm = NULL, *asyh = NULL;
 	bool modeset = false;
 	int ret;