disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/sun4i/sun4i_layer.c
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@@ -1,18 +1,14 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (C) 2015 Free Electrons
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  * Copyright (C) 2015 NextThing Co
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  *
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  * Maxime Ripard <maxime.ripard@free-electrons.com>
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation; either version 2 of
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- * the License, or (at your option) any later version.
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  */
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8
 
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 #include <drm/drm_atomic_helper.h>
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+#include <drm/drm_gem_framebuffer_helper.h>
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 #include <drm/drm_plane_helper.h>
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-#include <drm/drmP.h>
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12
 
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 #include "sun4i_backend.h"
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14
 #include "sun4i_frontend.h"
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@@ -35,9 +31,7 @@
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31
 
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 	state = kzalloc(sizeof(*state), GFP_KERNEL);
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 	if (state) {
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-		plane->state = &state->state;
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-		plane->state->plane = plane;
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-		plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE;
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+		__drm_atomic_helper_plane_reset(plane, &state->state);
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 		plane->state->zpos = layer->id;
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 	}
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 }
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@@ -94,14 +88,16 @@
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 	struct sun4i_backend *backend = layer->backend;
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 	struct sun4i_frontend *frontend = backend->frontend;
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+	sun4i_backend_cleanup_layer(backend, layer->id);
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+
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 	if (layer_state->uses_frontend) {
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 		sun4i_frontend_init(frontend);
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 		sun4i_frontend_update_coord(frontend, plane);
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 		sun4i_frontend_update_buffer(frontend, plane);
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 		sun4i_frontend_update_formats(frontend, plane,
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-					      DRM_FORMAT_ARGB8888);
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+					      DRM_FORMAT_XRGB8888);
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 		sun4i_backend_update_layer_frontend(backend, layer->id,
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-						    DRM_FORMAT_ARGB8888);
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+						    DRM_FORMAT_XRGB8888);
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 		sun4i_frontend_enable(frontend);
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 	} else {
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 		sun4i_backend_update_layer_formats(backend, layer->id, plane);
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@@ -113,7 +109,20 @@
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 	sun4i_backend_layer_enable(backend, layer->id, true);
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 }
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111
 
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+static bool sun4i_layer_format_mod_supported(struct drm_plane *plane,
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+					     uint32_t format, uint64_t modifier)
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+{
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+	struct sun4i_layer *layer = plane_to_sun4i_layer(plane);
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+
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+	if (IS_ERR_OR_NULL(layer->backend->frontend))
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+		sun4i_backend_format_is_supported(format, modifier);
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+
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+	return sun4i_backend_format_is_supported(format, modifier) ||
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+	       sun4i_frontend_format_is_supported(format, modifier);
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+}
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+
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 static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = {
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+	.prepare_fb	= drm_gem_fb_prepare_fb,
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 	.atomic_disable	= sun4i_backend_layer_atomic_disable,
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 	.atomic_update	= sun4i_backend_layer_atomic_update,
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 };
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@@ -125,6 +134,35 @@
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 	.disable_plane		= drm_atomic_helper_disable_plane,
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 	.reset			= sun4i_backend_layer_reset,
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 	.update_plane		= drm_atomic_helper_update_plane,
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+	.format_mod_supported	= sun4i_layer_format_mod_supported,
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+};
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+
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+static const uint32_t sun4i_layer_formats[] = {
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+	DRM_FORMAT_ARGB8888,
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+	DRM_FORMAT_ARGB4444,
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+	DRM_FORMAT_ARGB1555,
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+	DRM_FORMAT_BGRX8888,
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+	DRM_FORMAT_RGBA5551,
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+	DRM_FORMAT_RGBA4444,
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+	DRM_FORMAT_RGB888,
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+	DRM_FORMAT_RGB565,
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+	DRM_FORMAT_NV12,
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+	DRM_FORMAT_NV16,
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+	DRM_FORMAT_NV21,
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+	DRM_FORMAT_NV61,
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+	DRM_FORMAT_UYVY,
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+	DRM_FORMAT_VYUY,
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+	DRM_FORMAT_XRGB8888,
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+	DRM_FORMAT_YUV411,
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+	DRM_FORMAT_YUV420,
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+	DRM_FORMAT_YUV422,
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+	DRM_FORMAT_YUV444,
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+	DRM_FORMAT_YUYV,
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+	DRM_FORMAT_YVU411,
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+	DRM_FORMAT_YVU420,
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+	DRM_FORMAT_YVU422,
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+	DRM_FORMAT_YVU444,
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+	DRM_FORMAT_YVYU,
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 };
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 static const uint32_t sun4i_backend_layer_formats[] = {
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@@ -142,10 +180,19 @@
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 	DRM_FORMAT_YVYU,
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 };
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182
 
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+static const uint64_t sun4i_layer_modifiers[] = {
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+	DRM_FORMAT_MOD_LINEAR,
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+	DRM_FORMAT_MOD_ALLWINNER_TILED,
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+	DRM_FORMAT_MOD_INVALID
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+};
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+
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 static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm,
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 						struct sun4i_backend *backend,
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 						enum drm_plane_type type)
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 {
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+	const uint64_t *modifiers = sun4i_layer_modifiers;
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+	const uint32_t *formats = sun4i_layer_formats;
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+	unsigned int formats_len = ARRAY_SIZE(sun4i_layer_formats);
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 	struct sun4i_layer *layer;
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 	int ret;
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@@ -153,12 +200,19 @@
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 	if (!layer)
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 		return ERR_PTR(-ENOMEM);
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202
 
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+	layer->backend = backend;
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+
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+	if (IS_ERR_OR_NULL(backend->frontend)) {
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+		formats = sun4i_backend_layer_formats;
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+		formats_len = ARRAY_SIZE(sun4i_backend_layer_formats);
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+		modifiers = NULL;
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+	}
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+
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 	/* possible crtcs are set later */
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 	ret = drm_universal_plane_init(drm, &layer->plane, 0,
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 				       &sun4i_backend_layer_funcs,
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-				       sun4i_backend_layer_formats,
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-				       ARRAY_SIZE(sun4i_backend_layer_formats),
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-				       NULL, type, NULL);
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+				       formats, formats_len,
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+				       modifiers, type, NULL);
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 	if (ret) {
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 		dev_err(drm->dev, "Couldn't initialize layer\n");
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 		return ERR_PTR(ret);
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@@ -166,7 +220,6 @@
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 	drm_plane_helper_add(&layer->plane,
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 			     &sun4i_backend_layer_helper_funcs);
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-	layer->backend = backend;
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 	drm_plane_create_alpha_property(&layer->plane);
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 	drm_plane_create_zpos_property(&layer->plane, 0, 0,
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@@ -197,11 +250,11 @@
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 			dev_err(drm->dev, "Couldn't initialize %s plane\n",
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 				i ? "overlay" : "primary");
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 			return ERR_CAST(layer);
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-		};
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+		}
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 		layer->id = i;
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 		planes[i] = &layer->plane;
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-	};
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+	}
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 	return planes;
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 }