[PATCH 3/7] drm: Add support for optional per-plane rotation property

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Not all planes on the ssytem may support the same rotations/reflections,
so make it possible to create a separate property for each plane.
This way userspace gets told exactly which rotations/reflections are
possible for each plane.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/drm_atomic.c    | 6 ++++--
 drivers/gpu/drm/drm_fb_helper.c | 6 +++++-
 include/drm/drm_crtc.h          | 2 ++
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 5f0002897862..38b023da6f09 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -710,7 +710,8 @@ int drm_atomic_plane_set_property(struct drm_plane *plane,
 		state->src_w = val;
 	} else if (property == config->prop_src_h) {
 		state->src_h = val;
-	} else if (property == config->rotation_property) {
+	} else if (property == config->rotation_property ||
+		   property == plane->rotation_property) {
 		if (!is_power_of_2(val & DRM_ROTATE_MASK))
 			return -EINVAL;
 		state->rotation = val;
@@ -768,7 +769,8 @@ drm_atomic_plane_get_property(struct drm_plane *plane,
 		*val = state->src_w;
 	} else if (property == config->prop_src_h) {
 		*val = state->src_h;
-	} else if (property == config->rotation_property) {
+	} else if (property == config->rotation_property ||
+		   property == plane->rotation_property) {
 		*val = state->rotation;
 	} else if (plane->funcs->atomic_get_property) {
 		return plane->funcs->atomic_get_property(plane, state, property, val);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index ce54e985d91b..ce536c0553e5 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -392,7 +392,11 @@ static int restore_fbdev_mode(struct drm_fb_helper *fb_helper)
 		if (plane->type != DRM_PLANE_TYPE_PRIMARY)
 			drm_plane_force_disable(plane);
 
-		if (dev->mode_config.rotation_property) {
+		if (plane->rotation_property) {
+			drm_mode_plane_set_obj_prop(plane,
+						    plane->rotation_property,
+						    BIT(DRM_ROTATE_0));
+		} else if (dev->mode_config.rotation_property) {
 			drm_mode_plane_set_obj_prop(plane,
 						    dev->mode_config.rotation_property,
 						    BIT(DRM_ROTATE_0));
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index b7ac7dcf52db..8d65e85d6d91 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1737,6 +1737,8 @@ struct drm_plane {
 	const struct drm_plane_helper_funcs *helper_private;
 
 	struct drm_plane_state *state;
+
+	struct drm_property *rotation_property;
 };
 
 /**
-- 
2.7.4

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