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/imx/dcss/dcss-plane.c b/drivers/gpu/drm/imx/dcss/dcss-plane.c
index 4723da457bad..eacaf9ac1ac9 100644
--- a/drivers/gpu/drm/imx/dcss/dcss-plane.c
+++ b/drivers/gpu/drm/imx/dcss/dcss-plane.c
@@ -137,11 +137,11 @@ static bool dcss_plane_is_source_size_allowed(u16 src_w, u16 src_h, u32 pix_fmt)
 }
 
 static int dcss_plane_atomic_check(struct drm_plane *plane,
-				   struct drm_plane_state *state)
+				   struct drm_plane_state *new_plane_state)
 {
 	struct dcss_plane *dcss_plane = to_dcss_plane(plane);
 	struct dcss_dev *dcss = plane->dev->dev_private;
-	struct drm_framebuffer *fb = state->fb;
+	struct drm_framebuffer *fb = new_plane_state->fb;
 	bool is_primary_plane = plane->type == DRM_PLANE_TYPE_PRIMARY;
 	struct drm_gem_cma_object *cma_obj;
 	struct drm_crtc_state *crtc_state;
@@ -149,20 +149,20 @@ static int dcss_plane_atomic_check(struct drm_plane *plane,
 	int min, max;
 	int ret;
 
-	if (!fb || !state->crtc)
+	if (!fb || !new_plane_state->crtc)
 		return 0;
 
 	cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
 	WARN_ON(!cma_obj);
 
-	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);
 
 	hdisplay = crtc_state->adjusted_mode.hdisplay;
 	vdisplay = crtc_state->adjusted_mode.vdisplay;
 
-	if (!dcss_plane_is_source_size_allowed(state->src_w >> 16,
-					       state->src_h >> 16,
+	if (!dcss_plane_is_source_size_allowed(new_plane_state->src_w >> 16,
+					       new_plane_state->src_h >> 16,
 					       fb->format->format)) {
 		DRM_DEBUG_KMS("Source plane size is not allowed!\n");
 		return -EINVAL;
@@ -171,26 +171,26 @@ static int dcss_plane_atomic_check(struct drm_plane *plane,
 	dcss_scaler_get_min_max_ratios(dcss->scaler, dcss_plane->ch_num,
 				       &min, &max);
 
-	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
+	ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
 						  min, max, !is_primary_plane,
 						  false);
 	if (ret)
 		return ret;
 
-	if (!state->visible)
+	if (!new_plane_state->visible)
 		return 0;
 
 	if (!dcss_plane_can_rotate(fb->format,
 				   !!(fb->flags & DRM_MODE_FB_MODIFIERS),
 				   fb->modifier,
-				   state->rotation)) {
+				   new_plane_state->rotation)) {
 		DRM_DEBUG_KMS("requested rotation is not allowed!\n");
 		return -EINVAL;
 	}
 
-	if ((state->crtc_x < 0 || state->crtc_y < 0 ||
-	     state->crtc_x + state->crtc_w > hdisplay ||
-	     state->crtc_y + state->crtc_h > vdisplay) &&
+	if ((new_plane_state->crtc_x < 0 || new_plane_state->crtc_y < 0 ||
+	     new_plane_state->crtc_x + new_plane_state->crtc_w > hdisplay ||
+	     new_plane_state->crtc_y + new_plane_state->crtc_h > vdisplay) &&
 	    !dcss_plane_fb_is_linear(fb)) {
 		DRM_DEBUG_KMS("requested cropping operation is not allowed!\n");
 		return -EINVAL;
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index cff783a37162..4756b36ab640 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -337,12 +337,12 @@ static const struct drm_plane_funcs ipu_plane_funcs = {
 };
 
 static int ipu_plane_atomic_check(struct drm_plane *plane,
-				  struct drm_plane_state *state)
+				  struct drm_plane_state *new_state)
 {
 	struct drm_plane_state *old_state = plane->state;
 	struct drm_crtc_state *crtc_state;
 	struct device *dev = plane->dev->dev;
-	struct drm_framebuffer *fb = state->fb;
+	struct drm_framebuffer *fb = new_state->fb;
 	struct drm_framebuffer *old_fb = old_state->fb;
 	unsigned long eba, ubo, vbo, old_ubo, old_vbo, alpha_eba;
 	bool can_position = (plane->type == DRM_PLANE_TYPE_OVERLAY);
@@ -352,15 +352,16 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 	if (!fb)
 		return 0;
 
-	if (WARN_ON(!state->crtc))
+	if (WARN_ON(!new_state->crtc))
 		return -EINVAL;
 
 	crtc_state =
-		drm_atomic_get_existing_crtc_state(state->state, state->crtc);
+		drm_atomic_get_existing_crtc_state(new_state->state,
+						   new_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_state, crtc_state,
 						  DRM_PLANE_HELPER_NO_SCALING,
 						  DRM_PLANE_HELPER_NO_SCALING,
 						  can_position, true);
@@ -374,7 +375,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 	switch (plane->type) {
 	case DRM_PLANE_TYPE_PRIMARY:
 		/* full plane minimum width is 13 pixels */
-		if (drm_rect_width(&state->dst) < 13)
+		if (drm_rect_width(&new_state->dst) < 13)
 			return -EINVAL;
 		break;
 	case DRM_PLANE_TYPE_OVERLAY:
@@ -384,7 +385,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 		return -EINVAL;
 	}
 
-	if (drm_rect_height(&state->dst) < 2)
+	if (drm_rect_height(&new_state->dst) < 2)
 		return -EINVAL;
 
 	/*
@@ -395,12 +396,12 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 	 * callback.
 	 */
 	if (old_fb &&
-	    (drm_rect_width(&state->dst) != drm_rect_width(&old_state->dst) ||
-	     drm_rect_height(&state->dst) != drm_rect_height(&old_state->dst) ||
+	    (drm_rect_width(&new_state->dst) != drm_rect_width(&old_state->dst) ||
+	     drm_rect_height(&new_state->dst) != drm_rect_height(&old_state->dst) ||
 	     fb->format != old_fb->format))
 		crtc_state->mode_changed = true;
 
-	eba = drm_plane_state_to_eba(state, 0);
+	eba = drm_plane_state_to_eba(new_state, 0);
 
 	if (eba & 0x7)
 		return -EINVAL;
@@ -426,7 +427,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 		 * - Only EBA may be changed while scanout is active
 		 * - The strides of U and V planes must be identical.
 		 */
-		vbo = drm_plane_state_to_vbo(state);
+		vbo = drm_plane_state_to_vbo(new_state);
 
 		if (vbo & 0x7 || vbo > 0xfffff8)
 			return -EINVAL;
@@ -443,7 +444,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 		fallthrough;
 	case DRM_FORMAT_NV12:
 	case DRM_FORMAT_NV16:
-		ubo = drm_plane_state_to_ubo(state);
+		ubo = drm_plane_state_to_ubo(new_state);
 
 		if (ubo & 0x7 || ubo > 0xfffff8)
 			return -EINVAL;
@@ -464,8 +465,8 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 		 * The x/y offsets must be even in case of horizontal/vertical
 		 * chroma subsampling.
 		 */
-		if (((state->src.x1 >> 16) & (fb->format->hsub - 1)) ||
-		    ((state->src.y1 >> 16) & (fb->format->vsub - 1)))
+		if (((new_state->src.x1 >> 16) & (fb->format->hsub - 1)) ||
+		    ((new_state->src.y1 >> 16) & (fb->format->vsub - 1)))
 			return -EINVAL;
 		break;
 	case DRM_FORMAT_RGB565_A8:
@@ -474,7 +475,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
 	case DRM_FORMAT_BGR888_A8:
 	case DRM_FORMAT_RGBX8888_A8:
 	case DRM_FORMAT_BGRX8888_A8:
-		alpha_eba = drm_plane_state_to_eba(state, 1);
+		alpha_eba = drm_plane_state_to_eba(new_state, 1);
 		if (alpha_eba & 0x7)
 			return -EINVAL;