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

2 files changed, 29 insertions, 28 deletions

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index c00961907b10..b91836dbe35b 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -360,21 +360,22 @@ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc,
 }
 
 static int ingenic_drm_plane_atomic_check(struct drm_plane *plane,
-					  struct drm_plane_state *state)
+					  struct drm_plane_state *new_plane_state)
 {
 	struct ingenic_drm *priv = drm_device_get_priv(plane->dev);
 	struct drm_crtc_state *crtc_state;
-	struct drm_crtc *crtc = state->crtc ?: plane->state->crtc;
+	struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc;
 	int ret;
 
 	if (!crtc)
 		return 0;
 
-	crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc);
+	crtc_state = drm_atomic_get_existing_crtc_state(new_plane_state->state,
+							crtc);
 	if (WARN_ON(!crtc_state))
 		return -EINVAL;
 
-	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
+	ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
 						  DRM_PLANE_HELPER_NO_SCALING,
 						  DRM_PLANE_HELPER_NO_SCALING,
 						  priv->soc_info->has_osd,
@@ -387,9 +388,9 @@ static int ingenic_drm_plane_atomic_check(struct drm_plane *plane,
 	 * Note that state->src_* are in 16.16 fixed-point format.
 	 */
 	if (!priv->soc_info->has_osd &&
-	    (state->src_x != 0 ||
-	     (state->src_w >> 16) != state->crtc_w ||
-	     (state->src_h >> 16) != state->crtc_h))
+	    (new_plane_state->src_x != 0 ||
+	     (new_plane_state->src_w >> 16) != new_plane_state->crtc_w ||
+	     (new_plane_state->src_h >> 16) != new_plane_state->crtc_h))
 		return -EINVAL;
 
 	/*
@@ -397,12 +398,12 @@ static int ingenic_drm_plane_atomic_check(struct drm_plane *plane,
 	 * its position, size or depth.
 	 */
 	if (priv->soc_info->has_osd &&
-	    (!plane->state->fb || !state->fb ||
-	     plane->state->crtc_x != state->crtc_x ||
-	     plane->state->crtc_y != state->crtc_y ||
-	     plane->state->crtc_w != state->crtc_w ||
-	     plane->state->crtc_h != state->crtc_h ||
-	     plane->state->fb->format->format != state->fb->format->format))
+	    (!plane->state->fb || !new_plane_state->fb ||
+	     plane->state->crtc_x != new_plane_state->crtc_x ||
+	     plane->state->crtc_y != new_plane_state->crtc_y ||
+	     plane->state->crtc_w != new_plane_state->crtc_w ||
+	     plane->state->crtc_h != new_plane_state->crtc_h ||
+	     plane->state->fb->format->format != new_plane_state->fb->format->format))
 		crtc_state->mode_changed = true;
 
 	return 0;
diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c
index 91457263a3ce..8288a451b00d 100644
--- a/drivers/gpu/drm/ingenic/ingenic-ipu.c
+++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c
@@ -514,49 +514,49 @@ static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane,
 }
 
 static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane,
-					  struct drm_plane_state *state)
+					  struct drm_plane_state *new_plane_state)
 {
 	unsigned int num_w, denom_w, num_h, denom_h, xres, yres, max_w, max_h;
 	struct ingenic_ipu *ipu = plane_to_ingenic_ipu(plane);
-	struct drm_crtc *crtc = state->crtc ?: plane->state->crtc;
+	struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc;
 	struct drm_crtc_state *crtc_state;
 
 	if (!crtc)
 		return 0;
 
-	crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc);
+	crtc_state = drm_atomic_get_existing_crtc_state(new_plane_state->state, crtc);
 	if (WARN_ON(!crtc_state))
 		return -EINVAL;
 
 	/* Request a full modeset if we are enabling or disabling the IPU. */
-	if (!plane->state->crtc ^ !state->crtc)
+	if (!plane->state->crtc ^ !new_plane_state->crtc)
 		crtc_state->mode_changed = true;
 
-	if (!state->crtc ||
+	if (!new_plane_state->crtc ||
 	    !crtc_state->mode.hdisplay || !crtc_state->mode.vdisplay)
 		return 0;
 
 	/* Plane must be fully visible */
-	if (state->crtc_x < 0 || state->crtc_y < 0 ||
-	    state->crtc_x + state->crtc_w > crtc_state->mode.hdisplay ||
-	    state->crtc_y + state->crtc_h > crtc_state->mode.vdisplay)
+	if (new_plane_state->crtc_x < 0 || new_plane_state->crtc_y < 0 ||
+	    new_plane_state->crtc_x + new_plane_state->crtc_w > crtc_state->mode.hdisplay ||
+	    new_plane_state->crtc_y + new_plane_state->crtc_h > crtc_state->mode.vdisplay)
 		return -EINVAL;
 
 	/* Minimum size is 4x4 */
-	if ((state->src_w >> 16) < 4 || (state->src_h >> 16) < 4)
+	if ((new_plane_state->src_w >> 16) < 4 || (new_plane_state->src_h >> 16) < 4)
 		return -EINVAL;
 
 	/* Input and output lines must have an even number of pixels. */
-	if (((state->src_w >> 16) & 1) || (state->crtc_w & 1))
+	if (((new_plane_state->src_w >> 16) & 1) || (new_plane_state->crtc_w & 1))
 		return -EINVAL;
 
-	if (!osd_changed(state, plane->state))
+	if (!osd_changed(new_plane_state, plane->state))
 		return 0;
 
 	crtc_state->mode_changed = true;
 
-	xres = state->src_w >> 16;
-	yres = state->src_h >> 16;
+	xres = new_plane_state->src_w >> 16;
+	yres = new_plane_state->src_h >> 16;
 
 	/*
 	 * Increase the scaled image's theorical width/height until we find a
@@ -568,13 +568,13 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane,
 	max_w = crtc_state->mode.hdisplay * 102 / 100;
 	max_h = crtc_state->mode.vdisplay * 102 / 100;
 
-	for (denom_w = xres, num_w = state->crtc_w; num_w <= max_w; num_w++)
+	for (denom_w = xres, num_w = new_plane_state->crtc_w; num_w <= max_w; num_w++)
 		if (!reduce_fraction(&num_w, &denom_w))
 			break;
 	if (num_w > max_w)
 		return -EINVAL;
 
-	for (denom_h = yres, num_h = state->crtc_h; num_h <= max_h; num_h++)
+	for (denom_h = yres, num_h = new_plane_state->crtc_h; num_h <= max_h; num_h++)
 		if (!reduce_fraction(&num_h, &denom_h))
 			break;
 	if (num_h > max_h)