[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / exynos / exynos_drm_drv.c

/*
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 * Authors:
 *	Inki Dae <inki.dae@samsung.com>
 *	Joonyoung Shim <jy0922.shim@samsung.com>
 *	Seung-Woo Kim <sw0312.kim@samsung.com>
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <linux/pm_runtime.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>

#include <linux/anon_inodes.h>

#include <drm/exynos_drm.h>

#include "exynos_drm_drv.h"
#include "exynos_drm_crtc.h"
#include "exynos_drm_encoder.h"
#include "exynos_drm_fbdev.h"
#include "exynos_drm_fb.h"
#include "exynos_drm_gem.h"
#include "exynos_drm_plane.h"
#include "exynos_drm_vidi.h"
#include "exynos_drm_dmabuf.h"
#include "exynos_drm_g2d.h"
#include "exynos_drm_ipp.h"
#include "exynos_drm_iommu.h"

#define DRIVER_NAME	"exynos"
#define DRIVER_DESC	"Samsung SoC DRM"
#define DRIVER_DATE	"20110530"
#define DRIVER_MAJOR	1
#define DRIVER_MINOR	0

#define VBLANK_OFF_DELAY	50000

/* platform device pointer for eynos drm device. */
static struct platform_device *exynos_drm_pdev;

static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
{
	struct exynos_drm_private *private;
	int ret;
	int nr;

	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
	if (!private)
		return -ENOMEM;

	INIT_LIST_HEAD(&private->pageflip_event_list);
	dev_set_drvdata(dev->dev, dev);
	dev->dev_private = (void *)private;

	/*
	 * create mapping to manage iommu table and set a pointer to iommu
	 * mapping structure to iommu_mapping of private data.
	 * also this iommu_mapping can be used to check if iommu is supported
	 * or not.
	 */
	ret = drm_create_iommu_mapping(dev);
	if (ret < 0) {
		DRM_ERROR("failed to create iommu mapping.\n");
		goto err_crtc;
	}

	drm_mode_config_init(dev);

	/* init kms poll for handling hpd */
	drm_kms_helper_poll_init(dev);

	exynos_drm_mode_config_init(dev);

	ret = exynos_drm_initialize_managers(dev);
	if (ret)
		goto err_mode_config_cleanup;

	for (nr = 0; nr < MAX_PLANE; nr++) {
		struct drm_plane *plane;
		unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;

		plane = exynos_plane_init(dev, possible_crtcs, false);
		if (!plane)
			goto err_manager_cleanup;
	}

	ret = exynos_drm_initialize_displays(dev);
	if (ret)
		goto err_manager_cleanup;

	ret = drm_vblank_init(dev, MAX_CRTC);
	if (ret)
		goto err_display_cleanup;

	/*
	 * probe sub drivers such as display controller and hdmi driver,
	 * that were registered at probe() of platform driver
	 * to the sub driver and create encoder and connector for them.
	 */
	ret = exynos_drm_device_register(dev);
	if (ret)
		goto err_vblank;

	/* setup possible_clones. */
	exynos_drm_encoder_setup(dev);

	/*
	 * create and configure fb helper and also exynos specific
	 * fbdev object.
	 */
	ret = exynos_drm_fbdev_init(dev);
	if (ret) {
		DRM_ERROR("failed to initialize drm fbdev\n");
		goto err_drm_device;
	}

	drm_vblank_offdelay = VBLANK_OFF_DELAY;

	platform_set_drvdata(dev->platformdev, dev);

	return 0;

err_drm_device:
	exynos_drm_device_unregister(dev);
err_vblank:
	drm_vblank_cleanup(dev);
err_display_cleanup:
	exynos_drm_remove_displays(dev);
err_manager_cleanup:
	exynos_drm_remove_managers(dev);
err_mode_config_cleanup:
	drm_mode_config_cleanup(dev);
	drm_release_iommu_mapping(dev);
err_crtc:
	drm_mode_config_cleanup(dev);
	kfree(private);

	return ret;
}

static int exynos_drm_unload(struct drm_device *dev)
{
	exynos_drm_fbdev_fini(dev);
	exynos_drm_device_unregister(dev);
	drm_vblank_cleanup(dev);
	drm_kms_helper_poll_fini(dev);
	exynos_drm_remove_displays(dev);
	exynos_drm_remove_managers(dev);
	drm_mode_config_cleanup(dev);

	drm_release_iommu_mapping(dev);
	kfree(dev->dev_private);

	dev->dev_private = NULL;

	return 0;
}

static const struct file_operations exynos_drm_gem_fops = {
	.mmap = exynos_drm_gem_mmap_buffer,
};

static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
{
	struct drm_connector *connector;

	drm_modeset_lock_all(dev);
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		int old_dpms = connector->dpms;

		if (connector->funcs->dpms)
			connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);

		/* Set the old mode back to the connector for resume */
		connector->dpms = old_dpms;
	}
	drm_modeset_unlock_all(dev);

	return 0;
}

static int exynos_drm_resume(struct drm_device *dev)
{
	struct drm_connector *connector;

	drm_modeset_lock_all(dev);
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		if (connector->funcs->dpms)
			connector->funcs->dpms(connector, connector->dpms);
	}

	drm_helper_resume_force_mode(dev);
	drm_modeset_unlock_all(dev);

	return 0;
}

static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
{
	struct drm_exynos_file_private *file_priv;
	struct file *anon_filp;
	int ret;

	file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
	if (!file_priv)
		return -ENOMEM;

	file->driver_priv = file_priv;

	ret = exynos_drm_subdrv_open(dev, file);
	if (ret)
		goto err_file_priv_free;

	anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
					NULL, 0);
	if (IS_ERR(anon_filp)) {
		ret = PTR_ERR(anon_filp);
		goto err_subdrv_close;
	}

	anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
	file_priv->anon_filp = anon_filp;

	return ret;

err_subdrv_close:
	exynos_drm_subdrv_close(dev, file);

err_file_priv_free:
	kfree(file_priv);
	file->driver_priv = NULL;
	return ret;
}

static void exynos_drm_preclose(struct drm_device *dev,
					struct drm_file *file)
{
	exynos_drm_subdrv_close(dev, file);
}

static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
{
	struct exynos_drm_private *private = dev->dev_private;
	struct drm_exynos_file_private *file_priv;
	struct drm_pending_vblank_event *v, *vt;
	struct drm_pending_event *e, *et;
	unsigned long flags;

	if (!file->driver_priv)
		return;

	/* Release all events not unhandled by page flip handler. */
	spin_lock_irqsave(&dev->event_lock, flags);
	list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
			base.link) {
		if (v->base.file_priv == file) {
			list_del(&v->base.link);
			drm_vblank_put(dev, v->pipe);
			v->base.destroy(&v->base);
		}
	}

	/* Release all events handled by page flip handler but not freed. */
	list_for_each_entry_safe(e, et, &file->event_list, link) {
		list_del(&e->link);
		e->destroy(e);
	}
	spin_unlock_irqrestore(&dev->event_lock, flags);

	file_priv = file->driver_priv;
	if (file_priv->anon_filp)
		fput(file_priv->anon_filp);

	kfree(file->driver_priv);
	file->driver_priv = NULL;
}

static void exynos_drm_lastclose(struct drm_device *dev)
{
	exynos_drm_fbdev_restore_mode(dev);
}

static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
	.fault = exynos_drm_gem_fault,
	.open = drm_gem_vm_open,
	.close = drm_gem_vm_close,
};

static const struct drm_ioctl_desc exynos_ioctls[] = {
	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
			DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
			exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
			DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
			exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
			exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
	DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
			vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
			exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
			exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
			exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
			exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
			exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
			exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
			exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
};

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

static struct drm_driver exynos_drm_driver = {
	.driver_features	= DRIVER_HAVE_IRQ | DRIVER_MODESET |
					DRIVER_GEM | DRIVER_PRIME,
	.load			= exynos_drm_load,
	.unload			= exynos_drm_unload,
	.suspend		= exynos_drm_suspend,
	.resume			= exynos_drm_resume,
	.open			= exynos_drm_open,
	.preclose		= exynos_drm_preclose,
	.lastclose		= exynos_drm_lastclose,
	.postclose		= exynos_drm_postclose,
	.get_vblank_counter	= drm_vblank_count,
	.enable_vblank		= exynos_drm_crtc_enable_vblank,
	.disable_vblank		= exynos_drm_crtc_disable_vblank,
	.gem_free_object	= exynos_drm_gem_free_object,
	.gem_vm_ops		= &exynos_drm_gem_vm_ops,
	.dumb_create		= exynos_drm_gem_dumb_create,
	.dumb_map_offset	= exynos_drm_gem_dumb_map_offset,
	.dumb_destroy		= drm_gem_dumb_destroy,
	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd,
	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
	.gem_prime_export	= exynos_dmabuf_prime_export,
	.gem_prime_import	= exynos_dmabuf_prime_import,
	.ioctls			= exynos_ioctls,
	.num_ioctls		= ARRAY_SIZE(exynos_ioctls),
	.fops			= &exynos_drm_driver_fops,
	.name	= DRIVER_NAME,
	.desc	= DRIVER_DESC,
	.date	= DRIVER_DATE,
	.major	= DRIVER_MAJOR,
	.minor	= DRIVER_MINOR,
};

static int exynos_drm_platform_probe(struct platform_device *pdev)
{
	int ret;

	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
	if (ret)
		return ret;

	pm_runtime_enable(&pdev->dev);
	pm_runtime_get_sync(&pdev->dev);

	return drm_platform_init(&exynos_drm_driver, pdev);
}

static int exynos_drm_platform_remove(struct platform_device *pdev)
{
	drm_put_dev(platform_get_drvdata(pdev));

	return 0;
}

#ifdef CONFIG_PM_SLEEP
static int exynos_drm_sys_suspend(struct device *dev)
{
	struct drm_device *drm_dev = dev_get_drvdata(dev);
	pm_message_t message;

	if (pm_runtime_suspended(dev))
		return 0;

	message.event = PM_EVENT_SUSPEND;
	return exynos_drm_suspend(drm_dev, message);
}

static int exynos_drm_sys_resume(struct device *dev)
{
	struct drm_device *drm_dev = dev_get_drvdata(dev);

	if (pm_runtime_suspended(dev))
		return 0;

	return exynos_drm_resume(drm_dev);
}
#endif

#ifdef CONFIG_PM_RUNTIME
static int exynos_drm_runtime_suspend(struct device *dev)
{
	struct drm_device *drm_dev = dev_get_drvdata(dev);
	pm_message_t message;

	if (pm_runtime_suspended(dev))
		return 0;

	message.event = PM_EVENT_SUSPEND;
	return exynos_drm_suspend(drm_dev, message);
}

static int exynos_drm_runtime_resume(struct device *dev)
{
	struct drm_device *drm_dev = dev_get_drvdata(dev);

	if (!pm_runtime_suspended(dev))
		return 0;

	return exynos_drm_resume(drm_dev);
}
#endif

static const struct dev_pm_ops exynos_drm_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
	SET_RUNTIME_PM_OPS(exynos_drm_runtime_suspend,
			exynos_drm_runtime_resume, NULL)
};

static struct platform_driver exynos_drm_platform_driver = {
	.probe		= exynos_drm_platform_probe,
	.remove		= exynos_drm_platform_remove,
	.driver		= {
		.owner	= THIS_MODULE,
		.name	= "exynos-drm",
		.pm	= &exynos_drm_pm_ops,
	},
};

static int __init exynos_drm_init(void)
{
	int ret;

#ifdef CONFIG_DRM_EXYNOS_DP
	ret = platform_driver_register(&dp_driver);
	if (ret < 0)
		goto out_dp;
#endif

#ifdef CONFIG_DRM_EXYNOS_FIMD
	ret = platform_driver_register(&fimd_driver);
	if (ret < 0)
		goto out_fimd;
#endif

#ifdef CONFIG_DRM_EXYNOS_HDMI
	ret = platform_driver_register(&hdmi_driver);
	if (ret < 0)
		goto out_hdmi;
	ret = platform_driver_register(&mixer_driver);
	if (ret < 0)
		goto out_mixer;
#endif

#ifdef CONFIG_DRM_EXYNOS_VIDI
	ret = platform_driver_register(&vidi_driver);
	if (ret < 0)
		goto out_vidi;
#endif

#ifdef CONFIG_DRM_EXYNOS_G2D
	ret = platform_driver_register(&g2d_driver);
	if (ret < 0)
		goto out_g2d;
#endif

#ifdef CONFIG_DRM_EXYNOS_FIMC
	ret = platform_driver_register(&fimc_driver);
	if (ret < 0)
		goto out_fimc;
#endif

#ifdef CONFIG_DRM_EXYNOS_ROTATOR
	ret = platform_driver_register(&rotator_driver);
	if (ret < 0)
		goto out_rotator;
#endif

#ifdef CONFIG_DRM_EXYNOS_GSC
	ret = platform_driver_register(&gsc_driver);
	if (ret < 0)
		goto out_gsc;
#endif

#ifdef CONFIG_DRM_EXYNOS_IPP
	ret = platform_driver_register(&ipp_driver);
	if (ret < 0)
		goto out_ipp;

	ret = exynos_platform_device_ipp_register();
	if (ret < 0)
		goto out_ipp_dev;
#endif

	ret = platform_driver_register(&exynos_drm_platform_driver);
	if (ret < 0)
		goto out_drm;

	exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
				NULL, 0);
	if (IS_ERR(exynos_drm_pdev)) {
		ret = PTR_ERR(exynos_drm_pdev);
		goto out;
	}

	return 0;

out:
	platform_driver_unregister(&exynos_drm_platform_driver);

out_drm:
#ifdef CONFIG_DRM_EXYNOS_IPP
	exynos_platform_device_ipp_unregister();
out_ipp_dev:
	platform_driver_unregister(&ipp_driver);
out_ipp:
#endif

#ifdef CONFIG_DRM_EXYNOS_GSC
	platform_driver_unregister(&gsc_driver);
out_gsc:
#endif

#ifdef CONFIG_DRM_EXYNOS_ROTATOR
	platform_driver_unregister(&rotator_driver);
out_rotator:
#endif

#ifdef CONFIG_DRM_EXYNOS_FIMC
	platform_driver_unregister(&fimc_driver);
out_fimc:
#endif

#ifdef CONFIG_DRM_EXYNOS_G2D
	platform_driver_unregister(&g2d_driver);
out_g2d:
#endif

#ifdef CONFIG_DRM_EXYNOS_VIDI
	platform_driver_unregister(&vidi_driver);
out_vidi:
#endif

#ifdef CONFIG_DRM_EXYNOS_HDMI
	platform_driver_unregister(&mixer_driver);
out_mixer:
	platform_driver_unregister(&hdmi_driver);
out_hdmi:
#endif

#ifdef CONFIG_DRM_EXYNOS_FIMD
	platform_driver_unregister(&fimd_driver);
out_fimd:
#endif
#ifdef CONFIG_DRM_EXYNOS_DP
	platform_driver_unregister(&dp_driver);
out_dp:
#endif
	return ret;
}

static void __exit exynos_drm_exit(void)
{
	platform_device_unregister(exynos_drm_pdev);

	platform_driver_unregister(&exynos_drm_platform_driver);

#ifdef CONFIG_DRM_EXYNOS_IPP
	exynos_platform_device_ipp_unregister();
	platform_driver_unregister(&ipp_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_GSC
	platform_driver_unregister(&gsc_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_ROTATOR
	platform_driver_unregister(&rotator_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_FIMC
	platform_driver_unregister(&fimc_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_G2D
	platform_driver_unregister(&g2d_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_HDMI
	platform_driver_unregister(&mixer_driver);
	platform_driver_unregister(&hdmi_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_VIDI
	platform_driver_unregister(&vidi_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_FIMD
	platform_driver_unregister(&fimd_driver);
#endif

#ifdef CONFIG_DRM_EXYNOS_DP
	platform_driver_unregister(&dp_driver);
#endif
}

module_init(exynos_drm_init);
module_exit(exynos_drm_exit);

MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
MODULE_DESCRIPTION("Samsung SoC DRM Driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
1c248b7d ID	1	/*
	2	* Copyright (c) 2011 Samsung Electronics Co., Ltd.
	3	* Authors:
	4	* Inki Dae <inki.dae@samsung.com>
	5	* Joonyoung Shim <jy0922.shim@samsung.com>
	6	* Seung-Woo Kim <sw0312.kim@samsung.com>
	7	*
d81aecb5 ID	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
1c248b7d ID	12	*/
1c248b7d ID	13
af65c804	14	#include <linux/pm_runtime.h>
760285e7 DH	15	#include <drm/drmP.h>
760285e7 DH	16	#include <drm/drm_crtc_helper.h>
1c248b7d	17
96f54215 ID	18	#include <linux/anon_inodes.h>
96f54215 ID	19
1c248b7d ID	20	#include <drm/exynos_drm.h>
	21
	22	#include "exynos_drm_drv.h"
	23	#include "exynos_drm_crtc.h"
d081f566	24	#include "exynos_drm_encoder.h"
1c248b7d ID	25	#include "exynos_drm_fbdev.h"
	26	#include "exynos_drm_fb.h"
	27	#include "exynos_drm_gem.h"
864ee9e6	28	#include "exynos_drm_plane.h"
b73d1230	29	#include "exynos_drm_vidi.h"
b2df26c1	30	#include "exynos_drm_dmabuf.h"
d7f1642c	31	#include "exynos_drm_g2d.h"
cb471f14	32	#include "exynos_drm_ipp.h"
0519f9a1	33	#include "exynos_drm_iommu.h"
1c248b7d	34
0edf9936	35	#define DRIVER_NAME "exynos"
1c248b7d ID	36	#define DRIVER_DESC "Samsung SoC DRM"
	37	#define DRIVER_DATE "20110530"
	38	#define DRIVER_MAJOR 1
	39	#define DRIVER_MINOR 0
	40
52c68814 ID	41	#define VBLANK_OFF_DELAY 50000
52c68814 ID	42
422bd00e RS	43	/* platform device pointer for eynos drm device. */
	44	static struct platform_device *exynos_drm_pdev;
	45
1c248b7d ID	46	static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
	47	{
	48	struct exynos_drm_private *private;
	49	int ret;
	50	int nr;
	51
1c248b7d	52	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
38bb5253	53	if (!private)
1c248b7d	54	return -ENOMEM;
1c248b7d ID	55
1c248b7d ID	56	INIT_LIST_HEAD(&private->pageflip_event_list);
af65c804	57	dev_set_drvdata(dev->dev, dev);
1c248b7d ID	58	dev->dev_private = (void *)private;
1c248b7d ID	59
0519f9a1 ID	60	/*
	61	* create mapping to manage iommu table and set a pointer to iommu
	62	* mapping structure to iommu_mapping of private data.
	63	* also this iommu_mapping can be used to check if iommu is supported
	64	* or not.
	65	*/
	66	ret = drm_create_iommu_mapping(dev);
	67	if (ret < 0) {
	68	DRM_ERROR("failed to create iommu mapping.\n");
	69	goto err_crtc;
	70	}
	71
1c248b7d ID	72	drm_mode_config_init(dev);
1c248b7d ID	73
7db3eba6 SWK	74	/* init kms poll for handling hpd */
	75	drm_kms_helper_poll_init(dev);
	76
1c248b7d ID	77	exynos_drm_mode_config_init(dev);
1c248b7d ID	78
080be03d SP	79	ret = exynos_drm_initialize_managers(dev);
	80	if (ret)
	81	goto err_mode_config_cleanup;
1c248b7d	82
864ee9e6	83	for (nr = 0; nr < MAX_PLANE; nr++) {
b5d2eb3b	84	struct drm_plane *plane;
3f283d93	85	unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
b5d2eb3b JS	86
	87	plane = exynos_plane_init(dev, possible_crtcs, false);
	88	if (!plane)
080be03d	89	goto err_manager_cleanup;
864ee9e6 JS	90	}
864ee9e6 JS	91
080be03d SP	92	ret = exynos_drm_initialize_displays(dev);
	93	if (ret)
	94	goto err_manager_cleanup;
	95
1c248b7d ID	96	ret = drm_vblank_init(dev, MAX_CRTC);
1c248b7d ID	97	if (ret)
080be03d	98	goto err_display_cleanup;
1c248b7d ID	99
	100	/*
	101	* probe sub drivers such as display controller and hdmi driver,
	102	* that were registered at probe() of platform driver
	103	* to the sub driver and create encoder and connector for them.
	104	*/
	105	ret = exynos_drm_device_register(dev);
	106	if (ret)
	107	goto err_vblank;
	108
d081f566 ID	109	/* setup possible_clones. */
	110	exynos_drm_encoder_setup(dev);
	111
1c248b7d ID	112	/*
	113	* create and configure fb helper and also exynos specific
	114	* fbdev object.
	115	*/
	116	ret = exynos_drm_fbdev_init(dev);
	117	if (ret) {
	118	DRM_ERROR("failed to initialize drm fbdev\n");
	119	goto err_drm_device;
	120	}
	121
52c68814 ID	122	drm_vblank_offdelay = VBLANK_OFF_DELAY;
52c68814 ID	123
a9a346d6 DV	124	platform_set_drvdata(dev->platformdev, dev);
a9a346d6 DV	125
1c248b7d ID	126	return 0;
	127
	128	err_drm_device:
	129	exynos_drm_device_unregister(dev);
	130	err_vblank:
	131	drm_vblank_cleanup(dev);
080be03d SP	132	err_display_cleanup:
	133	exynos_drm_remove_displays(dev);
	134	err_manager_cleanup:
	135	exynos_drm_remove_managers(dev);
	136	err_mode_config_cleanup:
	137	drm_mode_config_cleanup(dev);
0519f9a1	138	drm_release_iommu_mapping(dev);
1c248b7d ID	139	err_crtc:
	140	drm_mode_config_cleanup(dev);
	141	kfree(private);
	142
	143	return ret;
	144	}
	145
	146	static int exynos_drm_unload(struct drm_device *dev)
	147	{
1c248b7d ID	148	exynos_drm_fbdev_fini(dev);
	149	exynos_drm_device_unregister(dev);
	150	drm_vblank_cleanup(dev);
7db3eba6	151	drm_kms_helper_poll_fini(dev);
080be03d SP	152	exynos_drm_remove_displays(dev);
080be03d SP	153	exynos_drm_remove_managers(dev);
1c248b7d	154	drm_mode_config_cleanup(dev);
0519f9a1 ID	155
0519f9a1 ID	156	drm_release_iommu_mapping(dev);
1c248b7d ID	157	kfree(dev->dev_private);
	158
	159	dev->dev_private = NULL;
	160
	161	return 0;
	162	}
	163
96f54215 ID	164	static const struct file_operations exynos_drm_gem_fops = {
	165	.mmap = exynos_drm_gem_mmap_buffer,
	166	};
	167
af65c804 SP	168	static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
	169	{
	170	struct drm_connector *connector;
	171
	172	drm_modeset_lock_all(dev);
	173	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
	174	int old_dpms = connector->dpms;
	175
	176	if (connector->funcs->dpms)
	177	connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
	178
	179	/* Set the old mode back to the connector for resume */
	180	connector->dpms = old_dpms;
	181	}
	182	drm_modeset_unlock_all(dev);
	183
	184	return 0;
	185	}
	186
	187	static int exynos_drm_resume(struct drm_device *dev)
	188	{
	189	struct drm_connector *connector;
	190
	191	drm_modeset_lock_all(dev);
	192	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
	193	if (connector->funcs->dpms)
	194	connector->funcs->dpms(connector, connector->dpms);
	195	}
	196
	197	drm_helper_resume_force_mode(dev);
	198	drm_modeset_unlock_all(dev);
	199
	200	return 0;
	201	}
	202
9084f7b8 JS	203	static int exynos_drm_open(struct drm_device dev, struct drm_file file)
9084f7b8 JS	204	{
d7f1642c	205	struct drm_exynos_file_private *file_priv;
96f54215	206	struct file *anon_filp;
ba3706c0	207	int ret;
d7f1642c	208
d7f1642c JS	209	file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
	210	if (!file_priv)
	211	return -ENOMEM;
	212
d7f1642c	213	file->driver_priv = file_priv;
b2df26c1	214
ba3706c0	215	ret = exynos_drm_subdrv_open(dev, file);
6ca605f7	216	if (ret)
307ceaff	217	goto err_file_priv_free;
ba3706c0	218
96f54215 ID	219	anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
	220	NULL, 0);
	221	if (IS_ERR(anon_filp)) {
6ca605f7	222	ret = PTR_ERR(anon_filp);
307ceaff	223	goto err_subdrv_close;
96f54215 ID	224	}
	225
	226	anon_filp->f_mode = FMODE_READ \| FMODE_WRITE;
	227	file_priv->anon_filp = anon_filp;
	228
6ca605f7	229	return ret;
307ceaff DK	230
	231	err_subdrv_close:
	232	exynos_drm_subdrv_close(dev, file);
	233
	234	err_file_priv_free:
6ca605f7 SK	235	kfree(file_priv);
6ca605f7 SK	236	file->driver_priv = NULL;
ba3706c0	237	return ret;
9084f7b8 JS	238	}
9084f7b8 JS	239
ccf4d883	240	static void exynos_drm_preclose(struct drm_device *dev,
6f811502	241	struct drm_file *file)
0cbc330e ID	242	{
	243	exynos_drm_subdrv_close(dev, file);
	244	}
	245
	246	static void exynos_drm_postclose(struct drm_device dev, struct drm_file file)
ccf4d883	247	{
3ab09435	248	struct exynos_drm_private *private = dev->dev_private;
96f54215	249	struct drm_exynos_file_private *file_priv;
0cbc330e ID	250	struct drm_pending_vblank_event v, vt;
0cbc330e ID	251	struct drm_pending_event e, et;
3ab09435 JS	252	unsigned long flags;
3ab09435 JS	253
0cbc330e ID	254	if (!file->driver_priv)
	255	return;
	256
	257	/* Release all events not unhandled by page flip handler. */
3ab09435	258	spin_lock_irqsave(&dev->event_lock, flags);
0cbc330e	259	list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
3ab09435	260	base.link) {
0cbc330e ID	261	if (v->base.file_priv == file) {
	262	list_del(&v->base.link);
	263	drm_vblank_put(dev, v->pipe);
	264	v->base.destroy(&v->base);
3ab09435 JS	265	}
3ab09435 JS	266	}
9084f7b8	267
0cbc330e ID	268	/* Release all events handled by page flip handler but not freed. */
	269	list_for_each_entry_safe(e, et, &file->event_list, link) {
	270	list_del(&e->link);
	271	e->destroy(e);
	272	}
	273	spin_unlock_irqrestore(&dev->event_lock, flags);
ccf4d883	274
96f54215 ID	275	file_priv = file->driver_priv;
	276	if (file_priv->anon_filp)
	277	fput(file_priv->anon_filp);
53ef299f ID	278
	279	kfree(file->driver_priv);
	280	file->driver_priv = NULL;
	281	}
	282
1c248b7d ID	283	static void exynos_drm_lastclose(struct drm_device *dev)
1c248b7d ID	284	{
1c248b7d ID	285	exynos_drm_fbdev_restore_mode(dev);
	286	}
	287
78b68556	288	static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
1c248b7d ID	289	.fault = exynos_drm_gem_fault,
	290	.open = drm_gem_vm_open,
	291	.close = drm_gem_vm_close,
	292	};
	293
baa70943	294	static const struct drm_ioctl_desc exynos_ioctls[] = {
1c248b7d ID	295	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
	296	DRM_UNLOCKED \| DRM_AUTH),
	297	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
	298	exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED \|
	299	DRM_AUTH),
	300	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
	301	exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED \| DRM_AUTH),
40cd7e0c ID	302	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
40cd7e0c ID	303	exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
b73d1230 ID	304	DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
b73d1230 ID	305	vidi_connection_ioctl, DRM_UNLOCKED \| DRM_AUTH),
d7f1642c JS	306	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
	307	exynos_g2d_get_ver_ioctl, DRM_UNLOCKED \| DRM_AUTH),
	308	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
	309	exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED \| DRM_AUTH),
	310	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
	311	exynos_g2d_exec_ioctl, DRM_UNLOCKED \| DRM_AUTH),
cb471f14 EK	312	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
	313	exynos_drm_ipp_get_property, DRM_UNLOCKED \| DRM_AUTH),
	314	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
	315	exynos_drm_ipp_set_property, DRM_UNLOCKED \| DRM_AUTH),
	316	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
	317	exynos_drm_ipp_queue_buf, DRM_UNLOCKED \| DRM_AUTH),
	318	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
	319	exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED \| DRM_AUTH),
1c248b7d ID	320	};
1c248b7d ID	321
ac2bdf73 JS	322	static const struct file_operations exynos_drm_driver_fops = {
	323	.owner = THIS_MODULE,
	324	.open = drm_open,
	325	.mmap = exynos_drm_gem_mmap,
	326	.poll = drm_poll,
	327	.read = drm_read,
	328	.unlocked_ioctl = drm_ioctl,
804d74ab KP	329	#ifdef CONFIG_COMPAT
	330	.compat_ioctl = drm_compat_ioctl,
	331	#endif
ac2bdf73 JS	332	.release = drm_release,
	333	};
	334
1c248b7d	335	static struct drm_driver exynos_drm_driver = {
293a1c12 LP	336	.driver_features = DRIVER_HAVE_IRQ \| DRIVER_MODESET \|
293a1c12 LP	337	DRIVER_GEM \| DRIVER_PRIME,
1c248b7d ID	338	.load = exynos_drm_load,
1c248b7d ID	339	.unload = exynos_drm_unload,
af65c804 SP	340	.suspend = exynos_drm_suspend,
af65c804 SP	341	.resume = exynos_drm_resume,
9084f7b8	342	.open = exynos_drm_open,
ccf4d883	343	.preclose = exynos_drm_preclose,
1c248b7d	344	.lastclose = exynos_drm_lastclose,
53ef299f	345	.postclose = exynos_drm_postclose,
1c248b7d ID	346	.get_vblank_counter = drm_vblank_count,
	347	.enable_vblank = exynos_drm_crtc_enable_vblank,
	348	.disable_vblank = exynos_drm_crtc_disable_vblank,
1c248b7d ID	349	.gem_free_object = exynos_drm_gem_free_object,
	350	.gem_vm_ops = &exynos_drm_gem_vm_ops,
	351	.dumb_create = exynos_drm_gem_dumb_create,
	352	.dumb_map_offset = exynos_drm_gem_dumb_map_offset,
43387b37	353	.dumb_destroy = drm_gem_dumb_destroy,
b2df26c1 ID	354	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
	355	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
	356	.gem_prime_export = exynos_dmabuf_prime_export,
	357	.gem_prime_import = exynos_dmabuf_prime_import,
1c248b7d	358	.ioctls = exynos_ioctls,
baa70943	359	.num_ioctls = ARRAY_SIZE(exynos_ioctls),
ac2bdf73	360	.fops = &exynos_drm_driver_fops,
1c248b7d ID	361	.name = DRIVER_NAME,
	362	.desc = DRIVER_DESC,
	363	.date = DRIVER_DATE,
	364	.major = DRIVER_MAJOR,
	365	.minor = DRIVER_MINOR,
	366	};
	367
	368	static int exynos_drm_platform_probe(struct platform_device *pdev)
	369	{
d6cfaaba RK	370	int ret;
	371
	372	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
	373	if (ret)
	374	return ret;
1c248b7d	375
af65c804 SP	376	pm_runtime_enable(&pdev->dev);
	377	pm_runtime_get_sync(&pdev->dev);
	378
1c248b7d ID	379	return drm_platform_init(&exynos_drm_driver, pdev);
	380	}
	381
	382	static int exynos_drm_platform_remove(struct platform_device *pdev)
	383	{
a9a346d6	384	drm_put_dev(platform_get_drvdata(pdev));
1c248b7d ID	385
	386	return 0;
	387	}
	388
af65c804 SP	389	#ifdef CONFIG_PM_SLEEP
	390	static int exynos_drm_sys_suspend(struct device *dev)
	391	{
	392	struct drm_device *drm_dev = dev_get_drvdata(dev);
	393	pm_message_t message;
	394
	395	if (pm_runtime_suspended(dev))
	396	return 0;
	397
	398	message.event = PM_EVENT_SUSPEND;
	399	return exynos_drm_suspend(drm_dev, message);
	400	}
	401
	402	static int exynos_drm_sys_resume(struct device *dev)
	403	{
	404	struct drm_device *drm_dev = dev_get_drvdata(dev);
	405
	406	if (pm_runtime_suspended(dev))
	407	return 0;
	408
	409	return exynos_drm_resume(drm_dev);
	410	}
	411	#endif
	412
	413	#ifdef CONFIG_PM_RUNTIME
	414	static int exynos_drm_runtime_suspend(struct device *dev)
	415	{
	416	struct drm_device *drm_dev = dev_get_drvdata(dev);
	417	pm_message_t message;
	418
	419	if (pm_runtime_suspended(dev))
	420	return 0;
	421
	422	message.event = PM_EVENT_SUSPEND;
	423	return exynos_drm_suspend(drm_dev, message);
	424	}
	425
	426	static int exynos_drm_runtime_resume(struct device *dev)
	427	{
	428	struct drm_device *drm_dev = dev_get_drvdata(dev);
	429
	430	if (!pm_runtime_suspended(dev))
	431	return 0;
	432
	433	return exynos_drm_resume(drm_dev);
	434	}
	435	#endif
	436
	437	static const struct dev_pm_ops exynos_drm_pm_ops = {
	438	SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
	439	SET_RUNTIME_PM_OPS(exynos_drm_runtime_suspend,
	440	exynos_drm_runtime_resume, NULL)
	441	};
	442
1c248b7d ID	443	static struct platform_driver exynos_drm_platform_driver = {
1c248b7d ID	444	.probe = exynos_drm_platform_probe,
56550d94	445	.remove = exynos_drm_platform_remove,
1c248b7d ID	446	.driver = {
1c248b7d ID	447	.owner = THIS_MODULE,
9866b6c6	448	.name = "exynos-drm",
af65c804	449	.pm = &exynos_drm_pm_ops,
1c248b7d ID	450	},
	451	};
	452
	453	static int __init exynos_drm_init(void)
	454	{
132a5b91 JS	455	int ret;
132a5b91 JS	456
1417f109 SP	457	#ifdef CONFIG_DRM_EXYNOS_DP
	458	ret = platform_driver_register(&dp_driver);
	459	if (ret < 0)
	460	goto out_dp;
	461	#endif
	462
132a5b91 JS	463	#ifdef CONFIG_DRM_EXYNOS_FIMD
	464	ret = platform_driver_register(&fimd_driver);
	465	if (ret < 0)
	466	goto out_fimd;
	467	#endif
	468
	469	#ifdef CONFIG_DRM_EXYNOS_HDMI
	470	ret = platform_driver_register(&hdmi_driver);
	471	if (ret < 0)
	472	goto out_hdmi;
	473	ret = platform_driver_register(&mixer_driver);
	474	if (ret < 0)
	475	goto out_mixer;
132a5b91 JS	476	#endif
132a5b91 JS	477
b73d1230 ID	478	#ifdef CONFIG_DRM_EXYNOS_VIDI
	479	ret = platform_driver_register(&vidi_driver);
	480	if (ret < 0)
	481	goto out_vidi;
	482	#endif
	483
d7f1642c JS	484	#ifdef CONFIG_DRM_EXYNOS_G2D
	485	ret = platform_driver_register(&g2d_driver);
	486	if (ret < 0)
	487	goto out_g2d;
	488	#endif
	489
16102edb EK	490	#ifdef CONFIG_DRM_EXYNOS_FIMC
	491	ret = platform_driver_register(&fimc_driver);
	492	if (ret < 0)
	493	goto out_fimc;
	494	#endif
	495
bea8a429 EK	496	#ifdef CONFIG_DRM_EXYNOS_ROTATOR
	497	ret = platform_driver_register(&rotator_driver);
	498	if (ret < 0)
	499	goto out_rotator;
	500	#endif
	501
f2646380 EK	502	#ifdef CONFIG_DRM_EXYNOS_GSC
	503	ret = platform_driver_register(&gsc_driver);
	504	if (ret < 0)
	505	goto out_gsc;
	506	#endif
	507
cb471f14 EK	508	#ifdef CONFIG_DRM_EXYNOS_IPP
	509	ret = platform_driver_register(&ipp_driver);
	510	if (ret < 0)
	511	goto out_ipp;
43f41900 SWK	512
	513	ret = exynos_platform_device_ipp_register();
	514	if (ret < 0)
	515	goto out_ipp_dev;
cb471f14 EK	516	#endif
cb471f14 EK	517
132a5b91 JS	518	ret = platform_driver_register(&exynos_drm_platform_driver);
132a5b91 JS	519	if (ret < 0)
422bd00e RS	520	goto out_drm;
	521
	522	exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
	523	NULL, 0);
1055f49e	524	if (IS_ERR(exynos_drm_pdev)) {
422bd00e	525	ret = PTR_ERR(exynos_drm_pdev);
132a5b91	526	goto out;
422bd00e	527	}
132a5b91 JS	528
	529	return 0;
	530
	531	out:
422bd00e RS	532	platform_driver_unregister(&exynos_drm_platform_driver);
	533
	534	out_drm:
cb471f14	535	#ifdef CONFIG_DRM_EXYNOS_IPP
43f41900 SWK	536	exynos_platform_device_ipp_unregister();
43f41900 SWK	537	out_ipp_dev:
cb471f14 EK	538	platform_driver_unregister(&ipp_driver);
	539	out_ipp:
	540	#endif
	541
f2646380 EK	542	#ifdef CONFIG_DRM_EXYNOS_GSC
	543	platform_driver_unregister(&gsc_driver);
	544	out_gsc:
	545	#endif
	546
bea8a429 EK	547	#ifdef CONFIG_DRM_EXYNOS_ROTATOR
	548	platform_driver_unregister(&rotator_driver);
	549	out_rotator:
	550	#endif
	551
16102edb EK	552	#ifdef CONFIG_DRM_EXYNOS_FIMC
	553	platform_driver_unregister(&fimc_driver);
	554	out_fimc:
	555	#endif
	556
d7f1642c JS	557	#ifdef CONFIG_DRM_EXYNOS_G2D
	558	platform_driver_unregister(&g2d_driver);
	559	out_g2d:
	560	#endif
	561
b73d1230	562	#ifdef CONFIG_DRM_EXYNOS_VIDI
b73d1230	563	platform_driver_unregister(&vidi_driver);
ae9dace2	564	out_vidi:
b73d1230 ID	565	#endif
b73d1230 ID	566
132a5b91	567	#ifdef CONFIG_DRM_EXYNOS_HDMI
132a5b91 JS	568	platform_driver_unregister(&mixer_driver);
	569	out_mixer:
	570	platform_driver_unregister(&hdmi_driver);
	571	out_hdmi:
	572	#endif
	573
	574	#ifdef CONFIG_DRM_EXYNOS_FIMD
	575	platform_driver_unregister(&fimd_driver);
	576	out_fimd:
1417f109 SP	577	#endif
	578	#ifdef CONFIG_DRM_EXYNOS_DP
	579	platform_driver_unregister(&dp_driver);
	580	out_dp:
132a5b91 JS	581	#endif
132a5b91 JS	582	return ret;
1c248b7d ID	583	}
	584
	585	static void __exit exynos_drm_exit(void)
	586	{
422bd00e RS	587	platform_device_unregister(exynos_drm_pdev);
422bd00e RS	588
1c248b7d	589	platform_driver_unregister(&exynos_drm_platform_driver);
132a5b91	590
cb471f14	591	#ifdef CONFIG_DRM_EXYNOS_IPP
43f41900	592	exynos_platform_device_ipp_unregister();
cb471f14 EK	593	platform_driver_unregister(&ipp_driver);
	594	#endif
	595
f2646380 EK	596	#ifdef CONFIG_DRM_EXYNOS_GSC
	597	platform_driver_unregister(&gsc_driver);
	598	#endif
	599
bea8a429 EK	600	#ifdef CONFIG_DRM_EXYNOS_ROTATOR
	601	platform_driver_unregister(&rotator_driver);
	602	#endif
	603
16102edb EK	604	#ifdef CONFIG_DRM_EXYNOS_FIMC
	605	platform_driver_unregister(&fimc_driver);
	606	#endif
	607
d7f1642c JS	608	#ifdef CONFIG_DRM_EXYNOS_G2D
	609	platform_driver_unregister(&g2d_driver);
	610	#endif
	611
132a5b91	612	#ifdef CONFIG_DRM_EXYNOS_HDMI
132a5b91 JS	613	platform_driver_unregister(&mixer_driver);
	614	platform_driver_unregister(&hdmi_driver);
	615	#endif
	616
b73d1230 ID	617	#ifdef CONFIG_DRM_EXYNOS_VIDI
	618	platform_driver_unregister(&vidi_driver);
	619	#endif
	620
132a5b91 JS	621	#ifdef CONFIG_DRM_EXYNOS_FIMD
	622	platform_driver_unregister(&fimd_driver);
	623	#endif
1417f109 SP	624
	625	#ifdef CONFIG_DRM_EXYNOS_DP
	626	platform_driver_unregister(&dp_driver);
	627	#endif
1c248b7d ID	628	}
	629
	630	module_init(exynos_drm_init);
	631	module_exit(exynos_drm_exit);
	632
	633	MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
	634	MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
	635	MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
	636	MODULE_DESCRIPTION("Samsung SoC DRM Driver");
	637	MODULE_LICENSE("GPL");