[PATCH v5 2/3] drm/plane: modify create_in_formats to accommodate async

[Arun R Murthy <arun.r.murthy@xxxxxxxxx>]

create_in_formats creates the list of supported format/modifiers for
synchronous flips, modify the same function so as to take the
format_mod_supported as argument and create list of format/modifier for
async as well.

v5: create_in_formats can return -ve value in failure case, correct the
if condition to check the creation of blob <Chaitanya>
Dont add the modifier for which none of the formats is not supported.

Signed-off-by: Arun R Murthy <arun.r.murthy@xxxxxxxxx>
---
 drivers/gpu/drm/drm_plane.c | 46 +++++++++++++++++++++++++++++++++------------
 1 file changed, 34 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index c9d8871417722186d2b6f87197c9e15a70924b4f..01f67f1f5f29e37b8d0e0793c58bbe1bba337eb2 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -190,9 +190,12 @@ modifiers_ptr(struct drm_format_modifier_blob *blob)
 	return (struct drm_format_modifier *)(((char *)blob) + blob->modifiers_offset);
 }
 
-static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane)
+static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane,
+				 bool (*format_mod_supported)
+						(struct drm_plane *plane,
+						 uint32_t format,
+						 uint64_t modifier))
 {
-	const struct drm_mode_config *config = &dev->mode_config;
 	struct drm_property_blob *blob;
 	struct drm_format_modifier *mod;
 	size_t blob_size, formats_size, modifiers_size;
@@ -234,24 +237,26 @@ static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane
 	mod = modifiers_ptr(blob_data);
 	for (i = 0; i < plane->modifier_count; i++) {
 		for (j = 0; j < plane->format_count; j++) {
-			if (!plane->funcs->format_mod_supported ||
-			    plane->funcs->format_mod_supported(plane,
-							       plane->format_types[j],
-							       plane->modifiers[i])) {
+			if (!format_mod_supported || format_mod_supported
+							(plane,
+							 plane->format_types[j],
+							 plane->modifiers[i])) {
 				mod->formats |= 1ULL << j;
 			}
 		}
 
+		if (!mod->formats) {
+			mod->modifier = 0;
+			blob_data->count_modifiers--;
+			continue;
+		}
 		mod->modifier = plane->modifiers[i];
 		mod->offset = 0;
 		mod->pad = 0;
 		mod++;
 	}
 
-	drm_object_attach_property(&plane->base, config->modifiers_property,
-				   blob->base.id);
-
-	return 0;
+	return blob->base.id;
 }
 
 /**
@@ -368,6 +373,7 @@ static int __drm_universal_plane_init(struct drm_device *dev,
 	};
 	unsigned int format_modifier_count = 0;
 	int ret;
+	int blob_id;
 
 	/* plane index is used with 32bit bitmasks */
 	if (WARN_ON(config->num_total_plane >= 32))
@@ -474,8 +480,24 @@ static int __drm_universal_plane_init(struct drm_device *dev,
 		drm_plane_create_hotspot_properties(plane);
 	}
 
-	if (format_modifier_count)
-		create_in_format_blob(dev, plane);
+	if (format_modifier_count) {
+		blob_id = create_in_format_blob(dev, plane,
+						plane->funcs->format_mod_supported);
+		if (blob_id > 0)
+			drm_object_attach_property(&plane->base,
+						   config->modifiers_property,
+						   blob_id);
+	}
+
+	if (plane->funcs->format_mod_supported_async) {
+		blob_id = create_in_format_blob(dev, plane,
+						plane->funcs->format_mod_supported_async);
+		if (blob_id > 0)
+			drm_object_attach_property(&plane->base,
+						   config->async_modifiers_property,
+						   blob_id);
+	}
+
 
 	return 0;
 }

-- 
2.25.1