1 // SPDX-License-Identifier: GPL-2.0-or-later
6  * Maxime Ripard <maxime.ripard@free-electrons.com>
11 #include <linux/dma-mapping.h>
39 	args->pitch = ALIGN(DIV_ROUND_UP(args->width * args->bpp, 8), 2);  in drm_sun4i_gem_dumb_create()
51 	.name			= "sun4i-drm",
52 	.desc			= "Allwinner sun4i Display Engine",
74 		ret = -ENOMEM;  in sun4i_drv_bind()
78 	drm->dev_private = drv;  in sun4i_drv_bind()
79 	INIT_LIST_HEAD(&drv->frontend_list);  in sun4i_drv_bind()
80 	INIT_LIST_HEAD(&drv->engine_list);  in sun4i_drv_bind()
81 	INIT_LIST_HEAD(&drv->tcon_list);  in sun4i_drv_bind()
84 	if (ret && ret != -ENODEV) {  in sun4i_drv_bind()
85 		dev_err(drm->dev, "Couldn't claim our memory region\n");  in sun4i_drv_bind()
91 	ret = component_bind_all(drm->dev, drm);  in sun4i_drv_bind()
93 		dev_err(drm->dev, "Couldn't bind all pipelines components\n");  in sun4i_drv_bind()
97 	/* drm_vblank_init calls kcalloc, which can fail */  in sun4i_drv_bind()
98 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);  in sun4i_drv_bind()
157 	return of_device_is_compatible(node, "hdmi-connector");  in sun4i_drv_node_is_connector()
162 	return of_device_is_compatible(node, "allwinner,sun4i-a10-display-frontend") ||  in sun4i_drv_node_is_frontend()
163 		of_device_is_compatible(node, "allwinner,sun5i-a13-display-frontend") ||  in sun4i_drv_node_is_frontend()
164 		of_device_is_compatible(node, "allwinner,sun6i-a31-display-frontend") ||  in sun4i_drv_node_is_frontend()
165 		of_device_is_compatible(node, "allwinner,sun7i-a20-display-frontend") ||  in sun4i_drv_node_is_frontend()
166 		of_device_is_compatible(node, "allwinner,sun8i-a23-display-frontend") ||  in sun4i_drv_node_is_frontend()
167 		of_device_is_compatible(node, "allwinner,sun8i-a33-display-frontend") ||  in sun4i_drv_node_is_frontend()
168 		of_device_is_compatible(node, "allwinner,sun9i-a80-display-frontend");  in sun4i_drv_node_is_frontend()
173 	return of_device_is_compatible(node, "allwinner,sun9i-a80-deu");  in sun4i_drv_node_is_deu()
197 		quirks = (struct sun4i_tcon_quirks *)match->data;  in sun4i_drv_node_is_tcon_with_ch0()
199 		return quirks->has_channel_0;  in sun4i_drv_node_is_tcon_with_ch0()
220  * Also, in a dual display pipeline setup, both frontends can feed
221  * either backend, and both backends can feed either TCON, we want
228  * Hence we can use a breadth first search traversal order to add
290 		kfifo_put(&list->fifo, remote);  in sun4i_drv_traverse_endpoints()
314 	 * can just bail out.  in sun4i_drv_add_endpoints()
370 	struct device_node *np = pdev->dev.of_node, *endpoint;  in sun4i_drv_probe()
377 	 * DE2 and DE3 cores actually supports 40-bit addresses, but  in sun4i_drv_probe()
380 	dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));  in sun4i_drv_probe()
381 	dma_set_max_seg_size(&pdev->dev, UINT_MAX);  in sun4i_drv_probe()
395 		ret = sun4i_drv_add_endpoints(&pdev->dev, &list, &match,  in sun4i_drv_probe()
398 		/* sun4i_drv_add_endpoints can fail to allocate memory */  in sun4i_drv_probe()
406 		return component_master_add_with_match(&pdev->dev,  in sun4i_drv_probe()
415 	component_master_del(&pdev->dev, &sun4i_drv_master_ops);  in sun4i_drv_remove()
424 	{ .compatible = "allwinner,sun4i-a10-display-engine" },
425 	{ .compatible = "allwinner,sun5i-a10s-display-engine" },
426 	{ .compatible = "allwinner,sun5i-a13-display-engine" },
427 	{ .compatible = "allwinner,sun6i-a31-display-engine" },
428 	{ .compatible = "allwinner,sun6i-a31s-display-engine" },
429 	{ .compatible = "allwinner,sun7i-a20-display-engine" },
430 	{ .compatible = "allwinner,sun8i-a23-display-engine" },
431 	{ .compatible = "allwinner,sun8i-a33-display-engine" },
432 	{ .compatible = "allwinner,sun8i-a83t-display-engine" },
433 	{ .compatible = "allwinner,sun8i-h3-display-engine" },
434 	{ .compatible = "allwinner,sun8i-r40-display-engine" },
435 	{ .compatible = "allwinner,sun8i-v3s-display-engine" },
436 	{ .compatible = "allwinner,sun9i-a80-display-engine" },
437 	{ .compatible = "allwinner,sun20i-d1-display-engine" },
438 	{ .compatible = "allwinner,sun50i-a64-display-engine" },
439 	{ .compatible = "allwinner,sun50i-h6-display-engine" },
449 		.name		= "sun4i-drm",
456 MODULE_AUTHOR("Boris Brezillon <boris.brezillon@free-electrons.com>");
457 MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
458 MODULE_DESCRIPTION("Allwinner A10 Display Engine DRM/KMS Driver");