[deliverable/linux.git] / drivers / gpu / drm / vc4 / vc4_drv.c

/*
 * Copyright (C) 2014-2015 Broadcom
 * Copyright (C) 2013 Red Hat
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/clk.h>
#include <linux/component.h>
#include <linux/device.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include "drm_fb_cma_helper.h"
#include <drm/drm_fb_helper.h>

#include "uapi/drm/vc4_drm.h"
#include "vc4_drv.h"
#include "vc4_regs.h"

#define DRIVER_NAME "vc4"
#define DRIVER_DESC "Broadcom VC4 graphics"
#define DRIVER_DATE "20140616"
#define DRIVER_MAJOR 0
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0

/* Helper function for mapping the regs on a platform device. */
void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index)
{
	struct resource *res;
	void __iomem *map;

	res = platform_get_resource(dev, IORESOURCE_MEM, index);
	map = devm_ioremap_resource(&dev->dev, res);
	if (IS_ERR(map)) {
		DRM_ERROR("Failed to map registers: %ld\n", PTR_ERR(map));
		return map;
	}

	return map;
}

static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
			       struct drm_file *file_priv)
{
	struct vc4_dev *vc4 = to_vc4_dev(dev);
	struct drm_vc4_get_param *args = data;
	int ret;

	if (args->pad != 0)
		return -EINVAL;

	switch (args->param) {
	case DRM_VC4_PARAM_V3D_IDENT0:
		ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
		if (ret < 0)
			return ret;
		args->value = V3D_READ(V3D_IDENT0);
		pm_runtime_put(&vc4->v3d->pdev->dev);
		break;
	case DRM_VC4_PARAM_V3D_IDENT1:
		ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
		if (ret < 0)
			return ret;
		args->value = V3D_READ(V3D_IDENT1);
		pm_runtime_put(&vc4->v3d->pdev->dev);
		break;
	case DRM_VC4_PARAM_V3D_IDENT2:
		ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
		if (ret < 0)
			return ret;
		args->value = V3D_READ(V3D_IDENT2);
		pm_runtime_put(&vc4->v3d->pdev->dev);
		break;
	case DRM_VC4_PARAM_SUPPORTS_BRANCHES:
		args->value = true;
		break;
	default:
		DRM_DEBUG("Unknown parameter %d\n", args->param);
		return -EINVAL;
	}

	return 0;
}

static void vc4_lastclose(struct drm_device *dev)
{
	struct vc4_dev *vc4 = to_vc4_dev(dev);

	drm_fbdev_cma_restore_mode(vc4->fbdev);
}

static const struct file_operations vc4_drm_fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	.mmap = vc4_mmap,
	.poll = drm_poll,
	.read = drm_read,
#ifdef CONFIG_COMPAT
	.compat_ioctl = drm_compat_ioctl,
#endif
	.llseek = noop_llseek,
};

static const struct drm_ioctl_desc vc4_drm_ioctls[] = {
	DRM_IOCTL_DEF_DRV(VC4_SUBMIT_CL, vc4_submit_cl_ioctl, DRM_RENDER_ALLOW),
	DRM_IOCTL_DEF_DRV(VC4_WAIT_SEQNO, vc4_wait_seqno_ioctl, DRM_RENDER_ALLOW),
	DRM_IOCTL_DEF_DRV(VC4_WAIT_BO, vc4_wait_bo_ioctl, DRM_RENDER_ALLOW),
	DRM_IOCTL_DEF_DRV(VC4_CREATE_BO, vc4_create_bo_ioctl, DRM_RENDER_ALLOW),
	DRM_IOCTL_DEF_DRV(VC4_MMAP_BO, vc4_mmap_bo_ioctl, DRM_RENDER_ALLOW),
	DRM_IOCTL_DEF_DRV(VC4_CREATE_SHADER_BO, vc4_create_shader_bo_ioctl, DRM_RENDER_ALLOW),
	DRM_IOCTL_DEF_DRV(VC4_GET_HANG_STATE, vc4_get_hang_state_ioctl,
			  DRM_ROOT_ONLY),
	DRM_IOCTL_DEF_DRV(VC4_GET_PARAM, vc4_get_param_ioctl, DRM_RENDER_ALLOW),
};

static struct drm_driver vc4_drm_driver = {
	.driver_features = (DRIVER_MODESET |
			    DRIVER_ATOMIC |
			    DRIVER_GEM |
			    DRIVER_HAVE_IRQ |
			    DRIVER_RENDER |
			    DRIVER_PRIME),
	.lastclose = vc4_lastclose,
	.irq_handler = vc4_irq,
	.irq_preinstall = vc4_irq_preinstall,
	.irq_postinstall = vc4_irq_postinstall,
	.irq_uninstall = vc4_irq_uninstall,

	.enable_vblank = vc4_enable_vblank,
	.disable_vblank = vc4_disable_vblank,
	.get_vblank_counter = drm_vblank_no_hw_counter,
	.get_scanout_position = vc4_crtc_get_scanoutpos,
	.get_vblank_timestamp = vc4_crtc_get_vblank_timestamp,

#if defined(CONFIG_DEBUG_FS)
	.debugfs_init = vc4_debugfs_init,
	.debugfs_cleanup = vc4_debugfs_cleanup,
#endif

	.gem_create_object = vc4_create_object,
	.gem_free_object_unlocked = vc4_free_object,
	.gem_vm_ops = &drm_gem_cma_vm_ops,

	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
	.gem_prime_import = drm_gem_prime_import,
	.gem_prime_export = vc4_prime_export,
	.gem_prime_get_sg_table	= drm_gem_cma_prime_get_sg_table,
	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
	.gem_prime_vmap = vc4_prime_vmap,
	.gem_prime_vunmap = drm_gem_cma_prime_vunmap,
	.gem_prime_mmap = vc4_prime_mmap,

	.dumb_create = vc4_dumb_create,
	.dumb_map_offset = drm_gem_cma_dumb_map_offset,
	.dumb_destroy = drm_gem_dumb_destroy,

	.ioctls = vc4_drm_ioctls,
	.num_ioctls = ARRAY_SIZE(vc4_drm_ioctls),
	.fops = &vc4_drm_fops,

	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.date = DRIVER_DATE,
	.major = DRIVER_MAJOR,
	.minor = DRIVER_MINOR,
	.patchlevel = DRIVER_PATCHLEVEL,
};

static int compare_dev(struct device *dev, void *data)
{
	return dev == data;
}

static void vc4_match_add_drivers(struct device *dev,
				  struct component_match **match,
				  struct platform_driver *const *drivers,
				  int count)
{
	int i;

	for (i = 0; i < count; i++) {
		struct device_driver *drv = &drivers[i]->driver;
		struct device *p = NULL, *d;

		while ((d = bus_find_device(&platform_bus_type, p, drv,
					    (void *)platform_bus_type.match))) {
			put_device(p);
			component_match_add(dev, match, compare_dev, d);
			p = d;
		}
		put_device(p);
	}
}

static void vc4_kick_out_firmware_fb(void)
{
	struct apertures_struct *ap;

	ap = alloc_apertures(1);
	if (!ap)
		return;

	/* Since VC4 is a UMA device, the simplefb node may have been
	 * located anywhere in memory.
	 */
	ap->ranges[0].base = 0;
	ap->ranges[0].size = ~0;

	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
	kfree(ap);
}

static int vc4_drm_bind(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct drm_device *drm;
	struct vc4_dev *vc4;
	int ret = 0;

	dev->coherent_dma_mask = DMA_BIT_MASK(32);

	vc4 = devm_kzalloc(dev, sizeof(*vc4), GFP_KERNEL);
	if (!vc4)
		return -ENOMEM;

	drm = drm_dev_alloc(&vc4_drm_driver, dev);
	if (!drm)
		return -ENOMEM;
	platform_set_drvdata(pdev, drm);
	vc4->dev = drm;
	drm->dev_private = vc4;

	vc4_bo_cache_init(drm);

	drm_mode_config_init(drm);

	vc4_gem_init(drm);

	ret = component_bind_all(dev, drm);
	if (ret)
		goto gem_destroy;

	vc4_kick_out_firmware_fb();

	ret = drm_dev_register(drm, 0);
	if (ret < 0)
		goto unbind_all;

	vc4_kms_load(drm);

	return 0;

unbind_all:
	component_unbind_all(dev, drm);
gem_destroy:
	vc4_gem_destroy(drm);
	drm_dev_unref(drm);
	vc4_bo_cache_destroy(drm);
	return ret;
}

static void vc4_drm_unbind(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct drm_device *drm = platform_get_drvdata(pdev);
	struct vc4_dev *vc4 = to_vc4_dev(drm);

	if (vc4->fbdev)
		drm_fbdev_cma_fini(vc4->fbdev);

	drm_mode_config_cleanup(drm);

	drm_put_dev(drm);
}

static const struct component_master_ops vc4_drm_ops = {
	.bind = vc4_drm_bind,
	.unbind = vc4_drm_unbind,
};

static struct platform_driver *const component_drivers[] = {
	&vc4_hdmi_driver,
	&vc4_dpi_driver,
	&vc4_hvs_driver,
	&vc4_crtc_driver,
	&vc4_v3d_driver,
};

static int vc4_platform_drm_probe(struct platform_device *pdev)
{
	struct component_match *match = NULL;
	struct device *dev = &pdev->dev;

	vc4_match_add_drivers(dev, &match,
			      component_drivers, ARRAY_SIZE(component_drivers));

	return component_master_add_with_match(dev, &vc4_drm_ops, match);
}

static int vc4_platform_drm_remove(struct platform_device *pdev)
{
	component_master_del(&pdev->dev, &vc4_drm_ops);

	return 0;
}

static const struct of_device_id vc4_of_match[] = {
	{ .compatible = "brcm,bcm2835-vc4", },
	{},
};
MODULE_DEVICE_TABLE(of, vc4_of_match);

static struct platform_driver vc4_platform_driver = {
	.probe		= vc4_platform_drm_probe,
	.remove		= vc4_platform_drm_remove,
	.driver		= {
		.name	= "vc4-drm",
		.of_match_table = vc4_of_match,
	},
};

static int __init vc4_drm_register(void)
{
	int i, ret;

	for (i = 0; i < ARRAY_SIZE(component_drivers); i++) {
		ret = platform_driver_register(component_drivers[i]);
		if (ret) {
			while (--i >= 0)
				platform_driver_unregister(component_drivers[i]);
			return ret;
		}
	}
	return platform_driver_register(&vc4_platform_driver);
}

static void __exit vc4_drm_unregister(void)
{
	int i;

	for (i = ARRAY_SIZE(component_drivers) - 1; i >= 0; i--)
		platform_driver_unregister(component_drivers[i]);

	platform_driver_unregister(&vc4_platform_driver);
}

module_init(vc4_drm_register);
module_exit(vc4_drm_unregister);

MODULE_ALIAS("platform:vc4-drm");
MODULE_DESCRIPTION("Broadcom VC4 DRM Driver");
MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
c8b75bca EA	1	/*
	2	* Copyright (C) 2014-2015 Broadcom
	3	* Copyright (C) 2013 Red Hat
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*/
	9
	10	#include <linux/clk.h>
	11	#include <linux/component.h>
	12	#include <linux/device.h>
	13	#include <linux/io.h>
	14	#include <linux/module.h>
	15	#include <linux/of_platform.h>
	16	#include <linux/platform_device.h>
af713795	17	#include <linux/pm_runtime.h>
48666d56	18	#include "drm_fb_cma_helper.h"
44adece5	19	#include <drm/drm_fb_helper.h>
c8b75bca	20
d5bc60f6	21	#include "uapi/drm/vc4_drm.h"
c8b75bca EA	22	#include "vc4_drv.h"
	23	#include "vc4_regs.h"
	24
	25	#define DRIVER_NAME "vc4"
	26	#define DRIVER_DESC "Broadcom VC4 graphics"
	27	#define DRIVER_DATE "20140616"
	28	#define DRIVER_MAJOR 0
	29	#define DRIVER_MINOR 0
	30	#define DRIVER_PATCHLEVEL 0
	31
	32	/* Helper function for mapping the regs on a platform device. */
	33	void __iomem vc4_ioremap_regs(struct platform_device dev, int index)
	34	{
	35	struct resource *res;
	36	void __iomem *map;
	37
	38	res = platform_get_resource(dev, IORESOURCE_MEM, index);
	39	map = devm_ioremap_resource(&dev->dev, res);
	40	if (IS_ERR(map)) {
	41	DRM_ERROR("Failed to map registers: %ld\n", PTR_ERR(map));
	42	return map;
	43	}
	44
	45	return map;
	46	}
	47
af713795 EA	48	static int vc4_get_param_ioctl(struct drm_device dev, void data,
	49	struct drm_file *file_priv)
	50	{
	51	struct vc4_dev *vc4 = to_vc4_dev(dev);
	52	struct drm_vc4_get_param *args = data;
	53	int ret;
	54
	55	if (args->pad != 0)
	56	return -EINVAL;
	57
	58	switch (args->param) {
	59	case DRM_VC4_PARAM_V3D_IDENT0:
	60	ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
163195fc	61	if (ret < 0)
af713795 EA	62	return ret;
	63	args->value = V3D_READ(V3D_IDENT0);
	64	pm_runtime_put(&vc4->v3d->pdev->dev);
	65	break;
	66	case DRM_VC4_PARAM_V3D_IDENT1:
	67	ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
163195fc	68	if (ret < 0)
af713795 EA	69	return ret;
	70	args->value = V3D_READ(V3D_IDENT1);
	71	pm_runtime_put(&vc4->v3d->pdev->dev);
	72	break;
	73	case DRM_VC4_PARAM_V3D_IDENT2:
	74	ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
163195fc	75	if (ret < 0)
af713795 EA	76	return ret;
	77	args->value = V3D_READ(V3D_IDENT2);
	78	pm_runtime_put(&vc4->v3d->pdev->dev);
	79	break;
7363cee5 EA	80	case DRM_VC4_PARAM_SUPPORTS_BRANCHES:
	81	args->value = true;
	82	break;
af713795 EA	83	default:
	84	DRM_DEBUG("Unknown parameter %d\n", args->param);
	85	return -EINVAL;
	86	}
	87
	88	return 0;
	89	}
	90
48666d56 DF	91	static void vc4_lastclose(struct drm_device *dev)
	92	{
	93	struct vc4_dev *vc4 = to_vc4_dev(dev);
	94
63fe9bb8	95	drm_fbdev_cma_restore_mode(vc4->fbdev);
48666d56 DF	96	}
48666d56 DF	97
c8b75bca EA	98	static const struct file_operations vc4_drm_fops = {
	99	.owner = THIS_MODULE,
	100	.open = drm_open,
	101	.release = drm_release,
	102	.unlocked_ioctl = drm_ioctl,
463873d5	103	.mmap = vc4_mmap,
c8b75bca EA	104	.poll = drm_poll,
	105	.read = drm_read,
	106	#ifdef CONFIG_COMPAT
	107	.compat_ioctl = drm_compat_ioctl,
	108	#endif
	109	.llseek = noop_llseek,
	110	};
	111
	112	static const struct drm_ioctl_desc vc4_drm_ioctls[] = {
b10c22e5 HJ	113	DRM_IOCTL_DEF_DRV(VC4_SUBMIT_CL, vc4_submit_cl_ioctl, DRM_RENDER_ALLOW),
	114	DRM_IOCTL_DEF_DRV(VC4_WAIT_SEQNO, vc4_wait_seqno_ioctl, DRM_RENDER_ALLOW),
	115	DRM_IOCTL_DEF_DRV(VC4_WAIT_BO, vc4_wait_bo_ioctl, DRM_RENDER_ALLOW),
	116	DRM_IOCTL_DEF_DRV(VC4_CREATE_BO, vc4_create_bo_ioctl, DRM_RENDER_ALLOW),
	117	DRM_IOCTL_DEF_DRV(VC4_MMAP_BO, vc4_mmap_bo_ioctl, DRM_RENDER_ALLOW),
	118	DRM_IOCTL_DEF_DRV(VC4_CREATE_SHADER_BO, vc4_create_shader_bo_ioctl, DRM_RENDER_ALLOW),
21461365 EA	119	DRM_IOCTL_DEF_DRV(VC4_GET_HANG_STATE, vc4_get_hang_state_ioctl,
21461365 EA	120	DRM_ROOT_ONLY),
af713795	121	DRM_IOCTL_DEF_DRV(VC4_GET_PARAM, vc4_get_param_ioctl, DRM_RENDER_ALLOW),
c8b75bca EA	122	};
	123
	124	static struct drm_driver vc4_drm_driver = {
	125	.driver_features = (DRIVER_MODESET \|
	126	DRIVER_ATOMIC \|
	127	DRIVER_GEM \|
d5b1a78a	128	DRIVER_HAVE_IRQ \|
0cd3e274	129	DRIVER_RENDER \|
c8b75bca	130	DRIVER_PRIME),
48666d56	131	.lastclose = vc4_lastclose,
d5b1a78a EA	132	.irq_handler = vc4_irq,
	133	.irq_preinstall = vc4_irq_preinstall,
	134	.irq_postinstall = vc4_irq_postinstall,
	135	.irq_uninstall = vc4_irq_uninstall,
	136
c8b75bca EA	137	.enable_vblank = vc4_enable_vblank,
c8b75bca EA	138	.disable_vblank = vc4_disable_vblank,
792293cf	139	.get_vblank_counter = drm_vblank_no_hw_counter,
1bf59f1d MK	140	.get_scanout_position = vc4_crtc_get_scanoutpos,
1bf59f1d MK	141	.get_vblank_timestamp = vc4_crtc_get_vblank_timestamp,
c8b75bca EA	142
	143	#if defined(CONFIG_DEBUG_FS)
	144	.debugfs_init = vc4_debugfs_init,
	145	.debugfs_cleanup = vc4_debugfs_cleanup,
	146	#endif
	147
c826a6e1	148	.gem_create_object = vc4_create_object,
b82caafc	149	.gem_free_object_unlocked = vc4_free_object,
c8b75bca EA	150	.gem_vm_ops = &drm_gem_cma_vm_ops,
	151
	152	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
	153	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
	154	.gem_prime_import = drm_gem_prime_import,
463873d5	155	.gem_prime_export = vc4_prime_export,
c8b75bca EA	156	.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
c8b75bca EA	157	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
463873d5	158	.gem_prime_vmap = vc4_prime_vmap,
c8b75bca	159	.gem_prime_vunmap = drm_gem_cma_prime_vunmap,
463873d5	160	.gem_prime_mmap = vc4_prime_mmap,
c8b75bca EA	161
	162	.dumb_create = vc4_dumb_create,
	163	.dumb_map_offset = drm_gem_cma_dumb_map_offset,
	164	.dumb_destroy = drm_gem_dumb_destroy,
	165
	166	.ioctls = vc4_drm_ioctls,
	167	.num_ioctls = ARRAY_SIZE(vc4_drm_ioctls),
	168	.fops = &vc4_drm_fops,
	169
	170	.name = DRIVER_NAME,
	171	.desc = DRIVER_DESC,
	172	.date = DRIVER_DATE,
	173	.major = DRIVER_MAJOR,
	174	.minor = DRIVER_MINOR,
	175	.patchlevel = DRIVER_PATCHLEVEL,
	176	};
	177
	178	static int compare_dev(struct device dev, void data)
	179	{
	180	return dev == data;
	181	}
	182
	183	static void vc4_match_add_drivers(struct device *dev,
	184	struct component_match **match,
	185	struct platform_driver const drivers,
	186	int count)
	187	{
	188	int i;
	189
	190	for (i = 0; i < count; i++) {
	191	struct device_driver *drv = &drivers[i]->driver;
	192	struct device p = NULL, d;
	193
	194	while ((d = bus_find_device(&platform_bus_type, p, drv,
	195	(void *)platform_bus_type.match))) {
	196	put_device(p);
	197	component_match_add(dev, match, compare_dev, d);
	198	p = d;
	199	}
	200	put_device(p);
	201	}
	202	}
	203
b3a15f6d EA	204	static void vc4_kick_out_firmware_fb(void)
	205	{
	206	struct apertures_struct *ap;
	207
	208	ap = alloc_apertures(1);
	209	if (!ap)
	210	return;
	211
	212	/* Since VC4 is a UMA device, the simplefb node may have been
	213	* located anywhere in memory.
	214	*/
	215	ap->ranges[0].base = 0;
	216	ap->ranges[0].size = ~0;
	217
44adece5	218	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
b3a15f6d EA	219	kfree(ap);
	220	}
	221
c8b75bca EA	222	static int vc4_drm_bind(struct device *dev)
	223	{
	224	struct platform_device *pdev = to_platform_device(dev);
	225	struct drm_device *drm;
c8b75bca EA	226	struct vc4_dev *vc4;
	227	int ret = 0;
	228
	229	dev->coherent_dma_mask = DMA_BIT_MASK(32);
	230
	231	vc4 = devm_kzalloc(dev, sizeof(*vc4), GFP_KERNEL);
	232	if (!vc4)
	233	return -ENOMEM;
	234
	235	drm = drm_dev_alloc(&vc4_drm_driver, dev);
	236	if (!drm)
	237	return -ENOMEM;
	238	platform_set_drvdata(pdev, drm);
	239	vc4->dev = drm;
	240	drm->dev_private = vc4;
	241
c826a6e1 EA	242	vc4_bo_cache_init(drm);
c826a6e1 EA	243
c8b75bca	244	drm_mode_config_init(drm);
c8b75bca	245
d5b1a78a EA	246	vc4_gem_init(drm);
d5b1a78a EA	247
c8b75bca EA	248	ret = component_bind_all(dev, drm);
c8b75bca EA	249	if (ret)
d5b1a78a	250	goto gem_destroy;
c8b75bca	251
b3a15f6d EA	252	vc4_kick_out_firmware_fb();
b3a15f6d EA	253
c8b75bca EA	254	ret = drm_dev_register(drm, 0);
	255	if (ret < 0)
	256	goto unbind_all;
	257
c8b75bca EA	258	vc4_kms_load(drm);
	259
	260	return 0;
	261
c8b75bca EA	262	unbind_all:
c8b75bca EA	263	component_unbind_all(dev, drm);
d5b1a78a EA	264	gem_destroy:
d5b1a78a EA	265	vc4_gem_destroy(drm);
c8b75bca	266	drm_dev_unref(drm);
c826a6e1	267	vc4_bo_cache_destroy(drm);
c8b75bca EA	268	return ret;
	269	}
	270
	271	static void vc4_drm_unbind(struct device *dev)
	272	{
	273	struct platform_device *pdev = to_platform_device(dev);
	274	struct drm_device *drm = platform_get_drvdata(pdev);
48666d56 DF	275	struct vc4_dev *vc4 = to_vc4_dev(drm);
	276
	277	if (vc4->fbdev)
	278	drm_fbdev_cma_fini(vc4->fbdev);
c8b75bca EA	279
	280	drm_mode_config_cleanup(drm);
	281
	282	drm_put_dev(drm);
	283	}
	284
	285	static const struct component_master_ops vc4_drm_ops = {
	286	.bind = vc4_drm_bind,
	287	.unbind = vc4_drm_unbind,
	288	};
	289
	290	static struct platform_driver *const component_drivers[] = {
	291	&vc4_hdmi_driver,
08302c35	292	&vc4_dpi_driver,
c8b75bca	293	&vc4_hvs_driver,
7a100969	294	&vc4_crtc_driver,
d3f5168a	295	&vc4_v3d_driver,
c8b75bca EA	296	};
	297
	298	static int vc4_platform_drm_probe(struct platform_device *pdev)
	299	{
	300	struct component_match *match = NULL;
	301	struct device *dev = &pdev->dev;
	302
	303	vc4_match_add_drivers(dev, &match,
	304	component_drivers, ARRAY_SIZE(component_drivers));
	305
	306	return component_master_add_with_match(dev, &vc4_drm_ops, match);
	307	}
	308
	309	static int vc4_platform_drm_remove(struct platform_device *pdev)
	310	{
	311	component_master_del(&pdev->dev, &vc4_drm_ops);
	312
	313	return 0;
	314	}
	315
	316	static const struct of_device_id vc4_of_match[] = {
	317	{ .compatible = "brcm,bcm2835-vc4", },
	318	{},
	319	};
	320	MODULE_DEVICE_TABLE(of, vc4_of_match);
	321
	322	static struct platform_driver vc4_platform_driver = {
	323	.probe = vc4_platform_drm_probe,
	324	.remove = vc4_platform_drm_remove,
	325	.driver = {
	326	.name = "vc4-drm",
c8b75bca EA	327	.of_match_table = vc4_of_match,
	328	},
	329	};
	330
	331	static int __init vc4_drm_register(void)
	332	{
	333	int i, ret;
	334
	335	for (i = 0; i < ARRAY_SIZE(component_drivers); i++) {
	336	ret = platform_driver_register(component_drivers[i]);
	337	if (ret) {
	338	while (--i >= 0)
	339	platform_driver_unregister(component_drivers[i]);
	340	return ret;
	341	}
	342	}
	343	return platform_driver_register(&vc4_platform_driver);
	344	}
	345
	346	static void __exit vc4_drm_unregister(void)
	347	{
	348	int i;
	349
	350	for (i = ARRAY_SIZE(component_drivers) - 1; i >= 0; i--)
	351	platform_driver_unregister(component_drivers[i]);
	352
	353	platform_driver_unregister(&vc4_platform_driver);
	354	}
	355
	356	module_init(vc4_drm_register);
	357	module_exit(vc4_drm_unregister);
	358
	359	MODULE_ALIAS("platform:vc4-drm");
	360	MODULE_DESCRIPTION("Broadcom VC4 DRM Driver");
	361	MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
	362	MODULE_LICENSE("GPL v2");