[PATCH v3 01/11] drm/atomic: Move __drm_atomic_helper_disable_plane/set_config()

["Noralf Trønnes" <noralf@tronnes.org>]

Prepare for moving drm_fb_helper modesetting code to drm_client.
drm_client will be linked to drm.ko, so move
__drm_atomic_helper_disable_plane() and __drm_atomic_helper_set_config()
out of drm_kms_helper.ko.

While at it, fix two checkpatch complaints:
- WARNING: Block comments use a trailing */ on a separate line
- CHECK: Alignment should match open parenthesis

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
 drivers/gpu/drm/drm_atomic.c        | 168 ++++++++++++++++++++++++++++
 drivers/gpu/drm/drm_atomic_helper.c | 164 ---------------------------
 drivers/gpu/drm/drm_crtc_internal.h |   5 +
 include/drm/drm_atomic_helper.h     |   4 -
 4 files changed, 173 insertions(+), 168 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 5eb40130fafb..c3a9ffbf2310 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1130,6 +1130,174 @@ int drm_atomic_nonblocking_commit(struct drm_atomic_state *state)
 }
 EXPORT_SYMBOL(drm_atomic_nonblocking_commit);
 
+/* just used from drm-client and atomic-helper: */
+int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
+				      struct drm_plane_state *plane_state)
+{
+	int ret;
+
+	ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
+	if (ret != 0)
+		return ret;
+
+	drm_atomic_set_fb_for_plane(plane_state, NULL);
+	plane_state->crtc_x = 0;
+	plane_state->crtc_y = 0;
+	plane_state->crtc_w = 0;
+	plane_state->crtc_h = 0;
+	plane_state->src_x = 0;
+	plane_state->src_y = 0;
+	plane_state->src_w = 0;
+	plane_state->src_h = 0;
+
+	return 0;
+}
+EXPORT_SYMBOL(__drm_atomic_helper_disable_plane);
+
+static int update_output_state(struct drm_atomic_state *state,
+			       struct drm_mode_set *set)
+{
+	struct drm_device *dev = set->crtc->dev;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *new_crtc_state;
+	struct drm_connector *connector;
+	struct drm_connector_state *new_conn_state;
+	int ret, i;
+
+	ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
+			       state->acquire_ctx);
+	if (ret)
+		return ret;
+
+	/* First disable all connectors on the target crtc. */
+	ret = drm_atomic_add_affected_connectors(state, set->crtc);
+	if (ret)
+		return ret;
+
+	for_each_new_connector_in_state(state, connector, new_conn_state, i) {
+		if (new_conn_state->crtc == set->crtc) {
+			ret = drm_atomic_set_crtc_for_connector(new_conn_state,
+								NULL);
+			if (ret)
+				return ret;
+
+			/* Make sure legacy setCrtc always re-trains */
+			new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
+		}
+	}
+
+	/* Then set all connectors from set->connectors on the target crtc */
+	for (i = 0; i < set->num_connectors; i++) {
+		new_conn_state = drm_atomic_get_connector_state(state,
+								set->connectors[i]);
+		if (IS_ERR(new_conn_state))
+			return PTR_ERR(new_conn_state);
+
+		ret = drm_atomic_set_crtc_for_connector(new_conn_state,
+							set->crtc);
+		if (ret)
+			return ret;
+	}
+
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		/*
+		 * Don't update ->enable for the CRTC in the set_config request,
+		 * since a mismatch would indicate a bug in the upper layers.
+		 * The actual modeset code later on will catch any
+		 * inconsistencies here.
+		 */
+		if (crtc == set->crtc)
+			continue;
+
+		if (!new_crtc_state->connector_mask) {
+			ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
+								NULL);
+			if (ret < 0)
+				return ret;
+
+			new_crtc_state->active = false;
+		}
+	}
+
+	return 0;
+}
+
+/* just used from drm-client and atomic-helper: */
+int __drm_atomic_helper_set_config(struct drm_mode_set *set,
+				   struct drm_atomic_state *state)
+{
+	struct drm_crtc_state *crtc_state;
+	struct drm_plane_state *primary_state;
+	struct drm_crtc *crtc = set->crtc;
+	int hdisplay, vdisplay;
+	int ret;
+
+	crtc_state = drm_atomic_get_crtc_state(state, crtc);
+	if (IS_ERR(crtc_state))
+		return PTR_ERR(crtc_state);
+
+	primary_state = drm_atomic_get_plane_state(state, crtc->primary);
+	if (IS_ERR(primary_state))
+		return PTR_ERR(primary_state);
+
+	if (!set->mode) {
+		WARN_ON(set->fb);
+		WARN_ON(set->num_connectors);
+
+		ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
+		if (ret != 0)
+			return ret;
+
+		crtc_state->active = false;
+
+		ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
+		if (ret != 0)
+			return ret;
+
+		drm_atomic_set_fb_for_plane(primary_state, NULL);
+
+		goto commit;
+	}
+
+	WARN_ON(!set->fb);
+	WARN_ON(!set->num_connectors);
+
+	ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
+	if (ret != 0)
+		return ret;
+
+	crtc_state->active = true;
+
+	ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
+	if (ret != 0)
+		return ret;
+
+	drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
+
+	drm_atomic_set_fb_for_plane(primary_state, set->fb);
+	primary_state->crtc_x = 0;
+	primary_state->crtc_y = 0;
+	primary_state->crtc_w = hdisplay;
+	primary_state->crtc_h = vdisplay;
+	primary_state->src_x = set->x << 16;
+	primary_state->src_y = set->y << 16;
+	if (drm_rotation_90_or_270(primary_state->rotation)) {
+		primary_state->src_w = vdisplay << 16;
+		primary_state->src_h = hdisplay << 16;
+	} else {
+		primary_state->src_w = hdisplay << 16;
+		primary_state->src_h = vdisplay << 16;
+	}
+
+commit:
+	ret = update_output_state(state, set);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL(__drm_atomic_helper_set_config);
+
 void drm_atomic_print_state(const struct drm_atomic_state *state)
 {
 	struct drm_printer p = drm_info_printer(state->dev->dev);
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 86efd2da37f9..4094dcb11798 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -2842,95 +2842,6 @@ int drm_atomic_helper_disable_plane(struct drm_plane *plane,
 }
 EXPORT_SYMBOL(drm_atomic_helper_disable_plane);
 
-/* just used from fb-helper and atomic-helper: */
-int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
-		struct drm_plane_state *plane_state)
-{
-	int ret;
-
-	ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
-	if (ret != 0)
-		return ret;
-
-	drm_atomic_set_fb_for_plane(plane_state, NULL);
-	plane_state->crtc_x = 0;
-	plane_state->crtc_y = 0;
-	plane_state->crtc_w = 0;
-	plane_state->crtc_h = 0;
-	plane_state->src_x = 0;
-	plane_state->src_y = 0;
-	plane_state->src_w = 0;
-	plane_state->src_h = 0;
-
-	return 0;
-}
-
-static int update_output_state(struct drm_atomic_state *state,
-			       struct drm_mode_set *set)
-{
-	struct drm_device *dev = set->crtc->dev;
-	struct drm_crtc *crtc;
-	struct drm_crtc_state *new_crtc_state;
-	struct drm_connector *connector;
-	struct drm_connector_state *new_conn_state;
-	int ret, i;
-
-	ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
-			       state->acquire_ctx);
-	if (ret)
-		return ret;
-
-	/* First disable all connectors on the target crtc. */
-	ret = drm_atomic_add_affected_connectors(state, set->crtc);
-	if (ret)
-		return ret;
-
-	for_each_new_connector_in_state(state, connector, new_conn_state, i) {
-		if (new_conn_state->crtc == set->crtc) {
-			ret = drm_atomic_set_crtc_for_connector(new_conn_state,
-								NULL);
-			if (ret)
-				return ret;
-
-			/* Make sure legacy setCrtc always re-trains */
-			new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
-		}
-	}
-
-	/* Then set all connectors from set->connectors on the target crtc */
-	for (i = 0; i < set->num_connectors; i++) {
-		new_conn_state = drm_atomic_get_connector_state(state,
-							    set->connectors[i]);
-		if (IS_ERR(new_conn_state))
-			return PTR_ERR(new_conn_state);
-
-		ret = drm_atomic_set_crtc_for_connector(new_conn_state,
-							set->crtc);
-		if (ret)
-			return ret;
-	}
-
-	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
-		/* Don't update ->enable for the CRTC in the set_config request,
-		 * since a mismatch would indicate a bug in the upper layers.
-		 * The actual modeset code later on will catch any
-		 * inconsistencies here. */
-		if (crtc == set->crtc)
-			continue;
-
-		if (!new_crtc_state->connector_mask) {
-			ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
-								NULL);
-			if (ret < 0)
-				return ret;
-
-			new_crtc_state->active = false;
-		}
-	}
-
-	return 0;
-}
-
 /**
  * drm_atomic_helper_set_config - set a new config from userspace
  * @set: mode set configuration
@@ -2975,81 +2886,6 @@ int drm_atomic_helper_set_config(struct drm_mode_set *set,
 }
 EXPORT_SYMBOL(drm_atomic_helper_set_config);
 
-/* just used from fb-helper and atomic-helper: */
-int __drm_atomic_helper_set_config(struct drm_mode_set *set,
-		struct drm_atomic_state *state)
-{
-	struct drm_crtc_state *crtc_state;
-	struct drm_plane_state *primary_state;
-	struct drm_crtc *crtc = set->crtc;
-	int hdisplay, vdisplay;
-	int ret;
-
-	crtc_state = drm_atomic_get_crtc_state(state, crtc);
-	if (IS_ERR(crtc_state))
-		return PTR_ERR(crtc_state);
-
-	primary_state = drm_atomic_get_plane_state(state, crtc->primary);
-	if (IS_ERR(primary_state))
-		return PTR_ERR(primary_state);
-
-	if (!set->mode) {
-		WARN_ON(set->fb);
-		WARN_ON(set->num_connectors);
-
-		ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
-		if (ret != 0)
-			return ret;
-
-		crtc_state->active = false;
-
-		ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
-		if (ret != 0)
-			return ret;
-
-		drm_atomic_set_fb_for_plane(primary_state, NULL);
-
-		goto commit;
-	}
-
-	WARN_ON(!set->fb);
-	WARN_ON(!set->num_connectors);
-
-	ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
-	if (ret != 0)
-		return ret;
-
-	crtc_state->active = true;
-
-	ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
-	if (ret != 0)
-		return ret;
-
-	drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
-
-	drm_atomic_set_fb_for_plane(primary_state, set->fb);
-	primary_state->crtc_x = 0;
-	primary_state->crtc_y = 0;
-	primary_state->crtc_w = hdisplay;
-	primary_state->crtc_h = vdisplay;
-	primary_state->src_x = set->x << 16;
-	primary_state->src_y = set->y << 16;
-	if (drm_rotation_90_or_270(primary_state->rotation)) {
-		primary_state->src_w = vdisplay << 16;
-		primary_state->src_h = hdisplay << 16;
-	} else {
-		primary_state->src_w = hdisplay << 16;
-		primary_state->src_h = vdisplay << 16;
-	}
-
-commit:
-	ret = update_output_state(state, set);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
 /**
  * drm_atomic_helper_disable_all - disable all currently active outputs
  * @dev: DRM device
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 216f2a9ee3d4..22a63a544ec7 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -207,6 +207,11 @@ struct drm_minor;
 int drm_atomic_debugfs_init(struct drm_minor *minor);
 #endif
 
+int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
+				      struct drm_plane_state *plane_state);
+int __drm_atomic_helper_set_config(struct drm_mode_set *set,
+				   struct drm_atomic_state *state);
+
 void drm_atomic_print_state(const struct drm_atomic_state *state);
 
 /* drm_atomic_uapi.c */
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 58214be3bf3d..bf4e07141d81 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -117,12 +117,8 @@ int drm_atomic_helper_update_plane(struct drm_plane *plane,
 				   struct drm_modeset_acquire_ctx *ctx);
 int drm_atomic_helper_disable_plane(struct drm_plane *plane,
 				    struct drm_modeset_acquire_ctx *ctx);
-int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
-		struct drm_plane_state *plane_state);
 int drm_atomic_helper_set_config(struct drm_mode_set *set,
 				 struct drm_modeset_acquire_ctx *ctx);
-int __drm_atomic_helper_set_config(struct drm_mode_set *set,
-		struct drm_atomic_state *state);
 
 int drm_atomic_helper_disable_all(struct drm_device *dev,
 				  struct drm_modeset_acquire_ctx *ctx);
-- 
2.20.1

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