drm/atomic: Pass the full state to planes atomic disable and update

The current atomic helpers have either their object state being passed as
an argument or the full atomic state.

The former is the pattern that was done at first, before switching to the
latter for new hooks or when it was needed.

Let's convert the remaining helpers to provide a consistent interface,
this time with the planes atomic_update and atomic_disable.

The conversion was done using the coccinelle script below, built tested on
all the drivers.

@@
identifier plane, plane_state;
symbol state;
@@

 struct drm_plane_helper_funcs {
 	...
	void (*atomic_update)(struct drm_plane *plane,
-			      struct drm_plane_state *plane_state);
+			      struct drm_atomic_state *state);
 	...
 }

@@
identifier plane, plane_state;
symbol state;
@@

 struct drm_plane_helper_funcs {
	...
	void (*atomic_disable)(struct drm_plane *plane,
-			       struct drm_plane_state *plane_state);
+			       struct drm_atomic_state *state);
	...
 }

@ plane_atomic_func @
identifier helpers;
identifier func;
@@

(
 static const struct drm_plane_helper_funcs helpers = {
 	...,
 	.atomic_update = func,
	...,
 };
|
 static const struct drm_plane_helper_funcs helpers = {
 	...,
 	.atomic_disable = func,
	...,
 };
)

@@
struct drm_plane_helper_funcs *FUNCS;
identifier f;
identifier crtc_state;
identifier plane, plane_state, state;
expression e;
@@

 f(struct drm_crtc_state *crtc_state)
 {
 	...
 	struct drm_atomic_state *state = e;
 	<+...
(
-	FUNCS->atomic_disable(plane, plane_state)
+	FUNCS->atomic_disable(plane, state)
|
-	FUNCS->atomic_update(plane, plane_state)
+	FUNCS->atomic_update(plane, state)
)
 	...+>
 }

@@
identifier plane_atomic_func.func;
identifier plane;
symbol state;
@@

 func(struct drm_plane *plane,
-    struct drm_plane_state *state)
+    struct drm_plane_state *old_plane_state)
 {
	<...
-	state
+	old_plane_state
	...>
 }

@ ignores_old_state @
identifier plane_atomic_func.func;
identifier plane, old_state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *old_state)
 {
	... when != old_state
 }

@ adds_old_state depends on plane_atomic_func && !ignores_old_state @
identifier plane_atomic_func.func;
identifier plane, plane_state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *plane_state)
 {
+	struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane);
 	...
 }

@ depends on plane_atomic_func @
identifier plane_atomic_func.func;
identifier plane, plane_state;
@@

 func(struct drm_plane *plane,
-     struct drm_plane_state *plane_state
+     struct drm_atomic_state *state
     )
 { ... }

@ include depends on adds_old_state @
@@

 #include <drm/drm_atomic.h>

@ no_include depends on !include && adds_old_state @
@@

+ #include <drm/drm_atomic.h>
  #include <drm/...>

@@
identifier plane_atomic_func.func;
identifier plane, state;
identifier plane_state;
@@

 func(struct drm_plane *plane, struct drm_atomic_state *state) {
 	...
 	struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane);
 	<+...
-	plane_state->state
+	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/20210219120032.260676-9-maxime@cerno.tech

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index d9954ac4e00f..f98185977c90 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -444,7 +444,7 @@ void ingenic_drm_plane_disable(struct device *dev, struct drm_plane *plane)
 }
 
 static void ingenic_drm_plane_atomic_disable(struct drm_plane *plane,
-					     struct drm_plane_state *old_state)
+					     struct drm_atomic_state *state)
 {
 	struct ingenic_drm *priv = drm_device_get_priv(plane->dev);
 
@@ -542,7 +542,7 @@ static void ingenic_drm_update_palette(struct ingenic_drm *priv,
 }
 
 static void ingenic_drm_plane_atomic_update(struct drm_plane *plane,
-					    struct drm_plane_state *oldstate)
+					    struct drm_atomic_state *state)
 {
 	struct ingenic_drm *priv = drm_device_get_priv(plane->dev);
 	struct drm_plane_state *newstate = plane->state;
diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c
index a5a544cf6bb0..dda3d42625bb 100644
--- a/drivers/gpu/drm/ingenic/ingenic-ipu.c
+++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c
@@ -282,7 +282,7 @@ static inline bool osd_changed(struct drm_plane_state *state,
 }
 
 static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane,
-					    struct drm_plane_state *oldstate)
+					    struct drm_atomic_state *state)
 {
 	struct ingenic_ipu *ipu = plane_to_ingenic_ipu(plane);
 	struct drm_plane_state *newstate = plane->state;
@@ -595,7 +595,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane,
 }
 
 static void ingenic_ipu_plane_atomic_disable(struct drm_plane *plane,
-					     struct drm_plane_state *old_state)
+					     struct drm_atomic_state *state)
 {
 	struct ingenic_ipu *ipu = plane_to_ingenic_ipu(plane);