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, 11 insertions, 10 deletions

diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
index 51dc24acea73..53ad0744e048 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -99,18 +99,19 @@ static void omap_plane_atomic_disable(struct drm_plane *plane,
 }
 
 static int omap_plane_atomic_check(struct drm_plane *plane,
-				   struct drm_plane_state *state)
+				   struct drm_plane_state *new_plane_state)
 {
 	struct drm_crtc_state *crtc_state;
 
-	if (!state->fb)
+	if (!new_plane_state->fb)
 		return 0;
 
-	/* crtc should only be NULL when disabling (i.e., !state->fb) */
-	if (WARN_ON(!state->crtc))
+	/* crtc should only be NULL when disabling (i.e., !new_plane_state->fb) */
+	if (WARN_ON(!new_plane_state->crtc))
 		return 0;
 
-	crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
+	crtc_state = drm_atomic_get_existing_crtc_state(new_plane_state->state,
+							new_plane_state->crtc);
 	/* we should have a crtc state if the plane is attached to a crtc */
 	if (WARN_ON(!crtc_state))
 		return 0;
@@ -118,17 +119,17 @@ static int omap_plane_atomic_check(struct drm_plane *plane,
 	if (!crtc_state->enable)
 		return 0;
 
-	if (state->crtc_x < 0 || state->crtc_y < 0)
+	if (new_plane_state->crtc_x < 0 || new_plane_state->crtc_y < 0)
 		return -EINVAL;
 
-	if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
+	if (new_plane_state->crtc_x + new_plane_state->crtc_w > crtc_state->adjusted_mode.hdisplay)
 		return -EINVAL;
 
-	if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
+	if (new_plane_state->crtc_y + new_plane_state->crtc_h > crtc_state->adjusted_mode.vdisplay)
 		return -EINVAL;
 
-	if (state->rotation != DRM_MODE_ROTATE_0 &&
-	    !omap_framebuffer_supports_rotation(state->fb))
+	if (new_plane_state->rotation != DRM_MODE_ROTATE_0 &&
+	    !omap_framebuffer_supports_rotation(new_plane_state->fb))
 		return -EINVAL;
 
 	return 0;