drm/msm/mdp5: switch to standard zpos property

Instead of implemeting zpos property on our own, use standard zpos
property support.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210525131316.3117809-6-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c

@@ -650,7 +650,7 @@ static int pstate_cmp(const void *a, const void *b)
 {
 	struct plane_state *pa = (struct plane_state *)a;
 	struct plane_state *pb = (struct plane_state *)b;
-	return pa->state->zpos - pb->state->zpos;
+	return pa->state->base.normalized_zpos - pb->state->base.normalized_zpos;
 }
 
 /* is there a helper for this? */

drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h

@@ -98,9 +98,6 @@ struct mdp5_plane_state {
 	struct mdp5_hw_pipe *hwpipe;
 	struct mdp5_hw_pipe *r_hwpipe;	/* right hwpipe */
 
-	/* aligned with property */
-	uint8_t zpos;
-
 	/* assigned by crtc blender */
 	enum mdp_mixer_stage_id stage;
 };

drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c

@@ -44,118 +44,22 @@ static void mdp5_plane_destroy(struct drm_plane *plane)
 	kfree(mdp5_plane);
 }
 
-static void mdp5_plane_install_rotation_property(struct drm_device *dev,
-		struct drm_plane *plane)
+/* helper to install properties which are common to planes and crtcs */
+static void mdp5_plane_install_properties(struct drm_plane *plane,
+		struct drm_mode_object *obj)
 {
 	drm_plane_create_rotation_property(plane,
 					   DRM_MODE_ROTATE_0,
 					   DRM_MODE_ROTATE_0 |
 					   DRM_MODE_ROTATE_180 |
 					   DRM_MODE_REFLECT_X |
 					   DRM_MODE_REFLECT_Y);
-}
-
-/* helper to install properties which are common to planes and crtcs */
-static void mdp5_plane_install_properties(struct drm_plane *plane,
-		struct drm_mode_object *obj)
-{
-	struct drm_device *dev = plane->dev;
-	struct msm_drm_private *dev_priv = dev->dev_private;
-	struct drm_property *prop;
-
-#define INSTALL_PROPERTY(name, NAME, init_val, fnc, ...) do { \
-		prop = dev_priv->plane_property[PLANE_PROP_##NAME]; \
-		if (!prop) { \
-			prop = drm_property_##fnc(dev, 0, #name, \
-				##__VA_ARGS__); \
-			if (!prop) { \
-				dev_warn(dev->dev, \
-					"Create property %s failed\n", \
-					#name); \
-				return; \
-			} \
-			dev_priv->plane_property[PLANE_PROP_##NAME] = prop; \
-		} \
-		drm_object_attach_property(&plane->base, prop, init_val); \
-	} while (0)
-
-#define INSTALL_RANGE_PROPERTY(name, NAME, min, max, init_val) \
-		INSTALL_PROPERTY(name, NAME, init_val, \
-				create_range, min, max)
-
-#define INSTALL_ENUM_PROPERTY(name, NAME, init_val) \
-		INSTALL_PROPERTY(name, NAME, init_val, \
-				create_enum, name##_prop_enum_list, \
-				ARRAY_SIZE(name##_prop_enum_list))
-
-	INSTALL_RANGE_PROPERTY(zpos, ZPOS, 1, 255, 1);
-
-	mdp5_plane_install_rotation_property(dev, plane);
 	drm_plane_create_alpha_property(plane);
 	drm_plane_create_blend_mode_property(plane,
 			BIT(DRM_MODE_BLEND_PIXEL_NONE) |
 			BIT(DRM_MODE_BLEND_PREMULTI) |
 			BIT(DRM_MODE_BLEND_COVERAGE));
-
-#undef INSTALL_RANGE_PROPERTY
-#undef INSTALL_ENUM_PROPERTY
-#undef INSTALL_PROPERTY
-}
-
-static int mdp5_plane_atomic_set_property(struct drm_plane *plane,
-		struct drm_plane_state *state, struct drm_property *property,
-		uint64_t val)
-{
-	struct drm_device *dev = plane->dev;
-	struct mdp5_plane_state *pstate;
-	struct msm_drm_private *dev_priv = dev->dev_private;
-	int ret = 0;
-
-	pstate = to_mdp5_plane_state(state);
-
-#define SET_PROPERTY(name, NAME, type) do { \
-		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
-			pstate->name = (type)val; \
-			DBG("Set property %s %d", #name, (type)val); \
-			goto done; \
-		} \
-	} while (0)
-
-	SET_PROPERTY(zpos, ZPOS, uint8_t);
-
-	DRM_DEV_ERROR(dev->dev, "Invalid property\n");
-	ret = -EINVAL;
-done:
-	return ret;
-#undef SET_PROPERTY
-}
-
-static int mdp5_plane_atomic_get_property(struct drm_plane *plane,
-		const struct drm_plane_state *state,
-		struct drm_property *property, uint64_t *val)
-{
-	struct drm_device *dev = plane->dev;
-	struct mdp5_plane_state *pstate;
-	struct msm_drm_private *dev_priv = dev->dev_private;
-	int ret = 0;
-
-	pstate = to_mdp5_plane_state(state);
-
-#define GET_PROPERTY(name, NAME, type) do { \
-		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
-			*val = pstate->name; \
-			DBG("Get property %s %lld", #name, *val); \
-			goto done; \
-		} \
-	} while (0)
-
-	GET_PROPERTY(zpos, ZPOS, uint8_t);
-
-	DRM_DEV_ERROR(dev->dev, "Invalid property\n");
-	ret = -EINVAL;
-done:
-	return ret;
-#undef SET_PROPERTY
+	drm_plane_create_zpos_property(plane, 1, 1, 255);
 }
 
 static void
@@ -172,7 +76,8 @@ mdp5_plane_atomic_print_state(struct drm_printer *p,
 			   pstate->r_hwpipe ? pstate->r_hwpipe->name :
 					      "(null)");
 	drm_printf(p, "\tblend_mode=%u\n", pstate->base.pixel_blend_mode);
-	drm_printf(p, "\tzpos=%u\n", pstate->zpos);
+	drm_printf(p, "\tzpos=%u\n", pstate->base.zpos);
+	drm_printf(p, "\tnormalized_zpos=%u\n", pstate->base.normalized_zpos);
 	drm_printf(p, "\talpha=%u\n", pstate->base.alpha);
 	drm_printf(p, "\tstage=%s\n", stage2name(pstate->stage));
 }
@@ -188,9 +93,10 @@ static void mdp5_plane_reset(struct drm_plane *plane)
 	mdp5_state = kzalloc(sizeof(*mdp5_state), GFP_KERNEL);
 
 	if (plane->type == DRM_PLANE_TYPE_PRIMARY)
-		mdp5_state->zpos = STAGE_BASE;
+		mdp5_state->base.zpos = STAGE_BASE;
 	else
-		mdp5_state->zpos = STAGE0 + drm_plane_index(plane);
+		mdp5_state->base.zpos = STAGE0 + drm_plane_index(plane);
+	mdp5_state->base.normalized_zpos = mdp5_state->base.zpos;
 
 	__drm_atomic_helper_plane_reset(plane, &mdp5_state->base);
 }
@@ -228,8 +134,6 @@ static const struct drm_plane_funcs mdp5_plane_funcs = {
 		.update_plane = drm_atomic_helper_update_plane,
 		.disable_plane = drm_atomic_helper_disable_plane,
 		.destroy = mdp5_plane_destroy,
-		.atomic_set_property = mdp5_plane_atomic_set_property,
-		.atomic_get_property = mdp5_plane_atomic_get_property,
 		.reset = mdp5_plane_reset,
 		.atomic_duplicate_state = mdp5_plane_duplicate_state,
 		.atomic_destroy_state = mdp5_plane_destroy_state,