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, 10 insertions, 8 deletions

diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c
index a3234bfb0917..d5a79a4aa996 100644
--- a/drivers/gpu/drm/arm/hdlcd_crtc.c
+++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
@@ -229,12 +229,12 @@ static const struct drm_crtc_helper_funcs hdlcd_crtc_helper_funcs = {
 };
 
 static int hdlcd_plane_atomic_check(struct drm_plane *plane,
-				    struct drm_plane_state *state)
+				    struct drm_plane_state *new_plane_state)
 {
 	int i;
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *crtc_state;
-	u32 src_h = state->src_h >> 16;
+	u32 src_h = new_plane_state->src_h >> 16;
 
 	/* only the HDLCD_REG_FB_LINE_COUNT register has a limit */
 	if (src_h >= HDLCD_MAX_YRES) {
@@ -242,14 +242,16 @@ static int hdlcd_plane_atomic_check(struct drm_plane *plane,
 		return -EINVAL;
 	}
 
-	for_each_new_crtc_in_state(state->state, crtc, crtc_state, i) {
+	for_each_new_crtc_in_state(new_plane_state->state, crtc, crtc_state,
+				   i) {
 		/* we cannot disable the plane while the CRTC is active */
-		if (!state->fb && crtc_state->active)
+		if (!new_plane_state->fb && crtc_state->active)
 			return -EINVAL;
-		return drm_atomic_helper_check_plane_state(state, crtc_state,
-						DRM_PLANE_HELPER_NO_SCALING,
-						DRM_PLANE_HELPER_NO_SCALING,
-						false, true);
+		return drm_atomic_helper_check_plane_state(new_plane_state,
+							   crtc_state,
+							   DRM_PLANE_HELPER_NO_SCALING,
+							   DRM_PLANE_HELPER_NO_SCALING,
+							   false, true);
 	}
 
 	return 0;