[deliverable/linux.git] / drivers / gpu / drm / rcar-du / rcar_du_drv.c

/*
 * rcar_du_drv.c  --  R-Car Display Unit DRM driver
 *
 * Copyright (C) 2013-2015 Renesas Electronics Corporation
 *
 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.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/clk.h>
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/wait.h>

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>

#include "rcar_du_crtc.h"
#include "rcar_du_drv.h"
#include "rcar_du_kms.h"
#include "rcar_du_regs.h"

/* -----------------------------------------------------------------------------
 * Device Information
 */

static const struct rcar_du_device_info rcar_du_r8a7779_info = {
	.gen = 2,
	.features = 0,
	.num_crtcs = 2,
	.routes = {
		/* R8A7779 has two RGB outputs and one (currently unsupported)
		 * TCON output.
		 */
		[RCAR_DU_OUTPUT_DPAD0] = {
			.possible_crtcs = BIT(0),
			.encoder_type = DRM_MODE_ENCODER_NONE,
			.port = 0,
		},
		[RCAR_DU_OUTPUT_DPAD1] = {
			.possible_crtcs = BIT(1) | BIT(0),
			.encoder_type = DRM_MODE_ENCODER_NONE,
			.port = 1,
		},
	},
	.num_lvds = 0,
};

static const struct rcar_du_device_info rcar_du_r8a7790_info = {
	.gen = 2,
	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
		  | RCAR_DU_FEATURE_EXT_CTRL_REGS,
	.quirks = RCAR_DU_QUIRK_ALIGN_128B | RCAR_DU_QUIRK_LVDS_LANES,
	.num_crtcs = 3,
	.routes = {
		/* R8A7790 has one RGB output, two LVDS outputs and one
		 * (currently unsupported) TCON output.
		 */
		[RCAR_DU_OUTPUT_DPAD0] = {
			.possible_crtcs = BIT(2) | BIT(1) | BIT(0),
			.encoder_type = DRM_MODE_ENCODER_NONE,
			.port = 0,
		},
		[RCAR_DU_OUTPUT_LVDS0] = {
			.possible_crtcs = BIT(0),
			.encoder_type = DRM_MODE_ENCODER_LVDS,
			.port = 1,
		},
		[RCAR_DU_OUTPUT_LVDS1] = {
			.possible_crtcs = BIT(2) | BIT(1),
			.encoder_type = DRM_MODE_ENCODER_LVDS,
			.port = 2,
		},
	},
	.num_lvds = 2,
};

/* M2-W (r8a7791) and M2-N (r8a7793) are identical */
static const struct rcar_du_device_info rcar_du_r8a7791_info = {
	.gen = 2,
	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
		  | RCAR_DU_FEATURE_EXT_CTRL_REGS,
	.num_crtcs = 2,
	.routes = {
		/* R8A779[13] has one RGB output, one LVDS output and one
		 * (currently unsupported) TCON output.
		 */
		[RCAR_DU_OUTPUT_DPAD0] = {
			.possible_crtcs = BIT(1) | BIT(0),
			.encoder_type = DRM_MODE_ENCODER_NONE,
			.port = 0,
		},
		[RCAR_DU_OUTPUT_LVDS0] = {
			.possible_crtcs = BIT(0),
			.encoder_type = DRM_MODE_ENCODER_LVDS,
			.port = 1,
		},
	},
	.num_lvds = 1,
};

static const struct rcar_du_device_info rcar_du_r8a7794_info = {
	.gen = 2,
	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
		  | RCAR_DU_FEATURE_EXT_CTRL_REGS,
	.num_crtcs = 2,
	.routes = {
		/* R8A7794 has two RGB outputs and one (currently unsupported)
		 * TCON output.
		 */
		[RCAR_DU_OUTPUT_DPAD0] = {
			.possible_crtcs = BIT(0),
			.encoder_type = DRM_MODE_ENCODER_NONE,
			.port = 0,
		},
		[RCAR_DU_OUTPUT_DPAD1] = {
			.possible_crtcs = BIT(1),
			.encoder_type = DRM_MODE_ENCODER_NONE,
			.port = 1,
		},
	},
	.num_lvds = 0,
};

static const struct rcar_du_device_info rcar_du_r8a7795_info = {
	.gen = 3,
	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
		  | RCAR_DU_FEATURE_EXT_CTRL_REGS
		  | RCAR_DU_FEATURE_VSP1_SOURCE,
	.num_crtcs = 4,
	.routes = {
		/* R8A7795 has one RGB output, one LVDS output and two
		 * (currently unsupported) HDMI outputs.
		 */
		[RCAR_DU_OUTPUT_DPAD0] = {
			.possible_crtcs = BIT(3),
			.encoder_type = DRM_MODE_ENCODER_NONE,
			.port = 0,
		},
		[RCAR_DU_OUTPUT_LVDS0] = {
			.possible_crtcs = BIT(0),
			.encoder_type = DRM_MODE_ENCODER_LVDS,
			.port = 3,
		},
	},
	.num_lvds = 1,
};

static const struct of_device_id rcar_du_of_table[] = {
	{ .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
	{ .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
	{ .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },
	{ .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },
	{ .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
	{ .compatible = "renesas,du-r8a7795", .data = &rcar_du_r8a7795_info },
	{ }
};

MODULE_DEVICE_TABLE(of, rcar_du_of_table);

/* -----------------------------------------------------------------------------
 * DRM operations
 */

static void rcar_du_lastclose(struct drm_device *dev)
{
	struct rcar_du_device *rcdu = dev->dev_private;

	drm_fbdev_cma_restore_mode(rcdu->fbdev);
}

static int rcar_du_enable_vblank(struct drm_device *dev, unsigned int pipe)
{
	struct rcar_du_device *rcdu = dev->dev_private;

	rcar_du_crtc_enable_vblank(&rcdu->crtcs[pipe], true);

	return 0;
}

static void rcar_du_disable_vblank(struct drm_device *dev, unsigned int pipe)
{
	struct rcar_du_device *rcdu = dev->dev_private;

	rcar_du_crtc_enable_vblank(&rcdu->crtcs[pipe], false);
}

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

static struct drm_driver rcar_du_driver = {
	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME
				| DRIVER_ATOMIC,
	.lastclose		= rcar_du_lastclose,
	.get_vblank_counter	= drm_vblank_no_hw_counter,
	.enable_vblank		= rcar_du_enable_vblank,
	.disable_vblank		= rcar_du_disable_vblank,
	.gem_free_object	= drm_gem_cma_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	= drm_gem_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		= drm_gem_cma_prime_vmap,
	.gem_prime_vunmap	= drm_gem_cma_prime_vunmap,
	.gem_prime_mmap		= drm_gem_cma_prime_mmap,
	.dumb_create		= rcar_du_dumb_create,
	.dumb_map_offset	= drm_gem_cma_dumb_map_offset,
	.dumb_destroy		= drm_gem_dumb_destroy,
	.fops			= &rcar_du_fops,
	.name			= "rcar-du",
	.desc			= "Renesas R-Car Display Unit",
	.date			= "20130110",
	.major			= 1,
	.minor			= 0,
};

/* -----------------------------------------------------------------------------
 * Power management
 */

#ifdef CONFIG_PM_SLEEP
static int rcar_du_pm_suspend(struct device *dev)
{
	struct rcar_du_device *rcdu = dev_get_drvdata(dev);

	drm_kms_helper_poll_disable(rcdu->ddev);
	/* TODO Suspend the CRTC */

	return 0;
}

static int rcar_du_pm_resume(struct device *dev)
{
	struct rcar_du_device *rcdu = dev_get_drvdata(dev);

	/* TODO Resume the CRTC */

	drm_kms_helper_poll_enable(rcdu->ddev);
	return 0;
}
#endif

static const struct dev_pm_ops rcar_du_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(rcar_du_pm_suspend, rcar_du_pm_resume)
};

/* -----------------------------------------------------------------------------
 * Platform driver
 */

static int rcar_du_remove(struct platform_device *pdev)
{
	struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
	struct drm_device *ddev = rcdu->ddev;

	drm_connector_unregister_all(ddev);
	drm_dev_unregister(ddev);

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

	drm_kms_helper_poll_fini(ddev);
	drm_mode_config_cleanup(ddev);
	drm_vblank_cleanup(ddev);

	drm_dev_unref(ddev);

	return 0;
}

static int rcar_du_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct rcar_du_device *rcdu;
	struct drm_device *ddev;
	struct resource *mem;
	int ret;

	if (np == NULL) {
		dev_err(&pdev->dev, "no device tree node\n");
		return -ENODEV;
	}

	/* Allocate and initialize the DRM and R-Car device structures. */
	rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
	if (rcdu == NULL)
		return -ENOMEM;

	init_waitqueue_head(&rcdu->commit.wait);

	rcdu->dev = &pdev->dev;
	rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;

	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
	if (!ddev)
		return -ENOMEM;

	drm_dev_set_unique(ddev, dev_name(&pdev->dev));

	rcdu->ddev = ddev;
	ddev->dev_private = rcdu;

	platform_set_drvdata(pdev, rcdu);

	/* I/O resources */
	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
	if (IS_ERR(rcdu->mmio)) {
		ret = PTR_ERR(rcdu->mmio);
		goto error;
	}

	/* Initialize vertical blanking interrupts handling. Start with vblank
	 * disabled for all CRTCs.
	 */
	ret = drm_vblank_init(ddev, (1 << rcdu->info->num_crtcs) - 1);
	if (ret < 0) {
		dev_err(&pdev->dev, "failed to initialize vblank\n");
		goto error;
	}

	/* DRM/KMS objects */
	ret = rcar_du_modeset_init(rcdu);
	if (ret < 0) {
		dev_err(&pdev->dev, "failed to initialize DRM/KMS (%d)\n", ret);
		goto error;
	}

	ddev->irq_enabled = 1;

	/* Register the DRM device with the core and the connectors with
	 * sysfs.
	 */
	ret = drm_dev_register(ddev, 0);
	if (ret)
		goto error;

	ret = drm_connector_register_all(ddev);
	if (ret < 0)
		goto error;

	DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));

	return 0;

error:
	rcar_du_remove(pdev);

	return ret;
}

static struct platform_driver rcar_du_platform_driver = {
	.probe		= rcar_du_probe,
	.remove		= rcar_du_remove,
	.driver		= {
		.name	= "rcar-du",
		.pm	= &rcar_du_pm_ops,
		.of_match_table = rcar_du_of_table,
	},
};

module_platform_driver(rcar_du_platform_driver);

MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
MODULE_DESCRIPTION("Renesas R-Car Display Unit DRM Driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
4bf8e196 LP	1	/*
	2	* rcar_du_drv.c -- R-Car Display Unit DRM driver
	3	*
2427b303	4	* Copyright (C) 2013-2015 Renesas Electronics Corporation
4bf8e196 LP	5	*
	6	* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*/
	13
	14	#include <linux/clk.h>
	15	#include <linux/io.h>
	16	#include <linux/mm.h>
	17	#include <linux/module.h>
96c02691	18	#include <linux/of_device.h>
4bf8e196 LP	19	#include <linux/platform_device.h>
	20	#include <linux/pm.h>
	21	#include <linux/slab.h>
8d3f9b22	22	#include <linux/wait.h>
4bf8e196 LP	23
	24	#include <drm/drmP.h>
	25	#include <drm/drm_crtc_helper.h>
3864c6f4	26	#include <drm/drm_fb_cma_helper.h>
4bf8e196 LP	27	#include <drm/drm_gem_cma_helper.h>
	28
	29	#include "rcar_du_crtc.h"
	30	#include "rcar_du_drv.h"
	31	#include "rcar_du_kms.h"
	32	#include "rcar_du_regs.h"
	33
96c02691 LP	34	/* -----------------------------------------------------------------------------
	35	* Device Information
	36	*/
	37
	38	static const struct rcar_du_device_info rcar_du_r8a7779_info = {
2427b303	39	.gen = 2,
96c02691 LP	40	.features = 0,
	41	.num_crtcs = 2,
	42	.routes = {
	43	/* R8A7779 has two RGB outputs and one (currently unsupported)
	44	* TCON output.
	45	*/
	46	[RCAR_DU_OUTPUT_DPAD0] = {
	47	.possible_crtcs = BIT(0),
	48	.encoder_type = DRM_MODE_ENCODER_NONE,
	49	.port = 0,
	50	},
	51	[RCAR_DU_OUTPUT_DPAD1] = {
	52	.possible_crtcs = BIT(1) \| BIT(0),
	53	.encoder_type = DRM_MODE_ENCODER_NONE,
	54	.port = 1,
	55	},
	56	},
	57	.num_lvds = 0,
	58	};
	59
	60	static const struct rcar_du_device_info rcar_du_r8a7790_info = {
2427b303	61	.gen = 2,
0c1c8776 LP	62	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
0c1c8776 LP	63	\| RCAR_DU_FEATURE_EXT_CTRL_REGS,
96c02691 LP	64	.quirks = RCAR_DU_QUIRK_ALIGN_128B \| RCAR_DU_QUIRK_LVDS_LANES,
	65	.num_crtcs = 3,
	66	.routes = {
	67	/* R8A7790 has one RGB output, two LVDS outputs and one
	68	* (currently unsupported) TCON output.
	69	*/
	70	[RCAR_DU_OUTPUT_DPAD0] = {
	71	.possible_crtcs = BIT(2) \| BIT(1) \| BIT(0),
	72	.encoder_type = DRM_MODE_ENCODER_NONE,
	73	.port = 0,
	74	},
	75	[RCAR_DU_OUTPUT_LVDS0] = {
	76	.possible_crtcs = BIT(0),
	77	.encoder_type = DRM_MODE_ENCODER_LVDS,
	78	.port = 1,
	79	},
	80	[RCAR_DU_OUTPUT_LVDS1] = {
	81	.possible_crtcs = BIT(2) \| BIT(1),
	82	.encoder_type = DRM_MODE_ENCODER_LVDS,
	83	.port = 2,
	84	},
	85	},
	86	.num_lvds = 2,
	87	};
	88
f1ceb84a	89	/* M2-W (r8a7791) and M2-N (r8a7793) are identical */
96c02691	90	static const struct rcar_du_device_info rcar_du_r8a7791_info = {
2427b303	91	.gen = 2,
0c1c8776 LP	92	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
0c1c8776 LP	93	\| RCAR_DU_FEATURE_EXT_CTRL_REGS,
96c02691 LP	94	.num_crtcs = 2,
96c02691 LP	95	.routes = {
f1ceb84a	96	/* R8A779[13] has one RGB output, one LVDS output and one
96c02691 LP	97	* (currently unsupported) TCON output.
	98	*/
	99	[RCAR_DU_OUTPUT_DPAD0] = {
f4f0fb79	100	.possible_crtcs = BIT(1) \| BIT(0),
96c02691 LP	101	.encoder_type = DRM_MODE_ENCODER_NONE,
	102	.port = 0,
	103	},
	104	[RCAR_DU_OUTPUT_LVDS0] = {
	105	.possible_crtcs = BIT(0),
	106	.encoder_type = DRM_MODE_ENCODER_LVDS,
	107	.port = 1,
	108	},
	109	},
	110	.num_lvds = 1,
	111	};
	112
090425c4	113	static const struct rcar_du_device_info rcar_du_r8a7794_info = {
2427b303	114	.gen = 2,
090425c4 LP	115	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
	116	\| RCAR_DU_FEATURE_EXT_CTRL_REGS,
	117	.num_crtcs = 2,
	118	.routes = {
	119	/* R8A7794 has two RGB outputs and one (currently unsupported)
	120	* TCON output.
	121	*/
	122	[RCAR_DU_OUTPUT_DPAD0] = {
	123	.possible_crtcs = BIT(0),
	124	.encoder_type = DRM_MODE_ENCODER_NONE,
	125	.port = 0,
	126	},
	127	[RCAR_DU_OUTPUT_DPAD1] = {
	128	.possible_crtcs = BIT(1),
	129	.encoder_type = DRM_MODE_ENCODER_NONE,
	130	.port = 1,
	131	},
	132	},
	133	.num_lvds = 0,
	134	};
	135
2427b303 LP	136	static const struct rcar_du_device_info rcar_du_r8a7795_info = {
	137	.gen = 3,
	138	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
	139	\| RCAR_DU_FEATURE_EXT_CTRL_REGS
	140	\| RCAR_DU_FEATURE_VSP1_SOURCE,
	141	.num_crtcs = 4,
	142	.routes = {
6bc2e15c KM	143	/* R8A7795 has one RGB output, one LVDS output and two
6bc2e15c KM	144	* (currently unsupported) HDMI outputs.
2427b303 LP	145	*/
	146	[RCAR_DU_OUTPUT_DPAD0] = {
	147	.possible_crtcs = BIT(3),
	148	.encoder_type = DRM_MODE_ENCODER_NONE,
	149	.port = 0,
	150	},
6bc2e15c KM	151	[RCAR_DU_OUTPUT_LVDS0] = {
	152	.possible_crtcs = BIT(0),
	153	.encoder_type = DRM_MODE_ENCODER_LVDS,
	154	.port = 3,
	155	},
2427b303	156	},
6bc2e15c	157	.num_lvds = 1,
2427b303 LP	158	};
2427b303 LP	159
96c02691 LP	160	static const struct of_device_id rcar_du_of_table[] = {
	161	{ .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
	162	{ .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
	163	{ .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },
f1ceb84a	164	{ .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },
090425c4	165	{ .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
2427b303	166	{ .compatible = "renesas,du-r8a7795", .data = &rcar_du_r8a7795_info },
96c02691 LP	167	{ }
	168	};
	169
	170	MODULE_DEVICE_TABLE(of, rcar_du_of_table);
	171
4bf8e196 LP	172	/* -----------------------------------------------------------------------------
	173	* DRM operations
	174	*/
	175
3864c6f4	176	static void rcar_du_lastclose(struct drm_device *dev)
4bf8e196	177	{
4bf8e196	178	struct rcar_du_device *rcdu = dev->dev_private;
4bf8e196	179
3864c6f4	180	drm_fbdev_cma_restore_mode(rcdu->fbdev);
4bf8e196 LP	181	}
4bf8e196 LP	182
88e72717	183	static int rcar_du_enable_vblank(struct drm_device *dev, unsigned int pipe)
4bf8e196 LP	184	{
	185	struct rcar_du_device *rcdu = dev->dev_private;
	186
88e72717	187	rcar_du_crtc_enable_vblank(&rcdu->crtcs[pipe], true);
4bf8e196 LP	188
	189	return 0;
	190	}
	191
88e72717	192	static void rcar_du_disable_vblank(struct drm_device *dev, unsigned int pipe)
4bf8e196 LP	193	{
	194	struct rcar_du_device *rcdu = dev->dev_private;
	195
88e72717	196	rcar_du_crtc_enable_vblank(&rcdu->crtcs[pipe], false);
4bf8e196 LP	197	}
	198
	199	static const struct file_operations rcar_du_fops = {
	200	.owner = THIS_MODULE,
	201	.open = drm_open,
	202	.release = drm_release,
	203	.unlocked_ioctl = drm_ioctl,
	204	#ifdef CONFIG_COMPAT
	205	.compat_ioctl = drm_compat_ioctl,
	206	#endif
	207	.poll = drm_poll,
	208	.read = drm_read,
4bf8e196 LP	209	.llseek = no_llseek,
	210	.mmap = drm_gem_cma_mmap,
	211	};
	212
	213	static struct drm_driver rcar_du_driver = {
6dbe686b LP	214	.driver_features = DRIVER_GEM \| DRIVER_MODESET \| DRIVER_PRIME
6dbe686b LP	215	\| DRIVER_ATOMIC,
3864c6f4	216	.lastclose = rcar_du_lastclose,
b44f8408	217	.get_vblank_counter = drm_vblank_no_hw_counter,
4bf8e196 LP	218	.enable_vblank = rcar_du_enable_vblank,
	219	.disable_vblank = rcar_du_disable_vblank,
	220	.gem_free_object = drm_gem_cma_free_object,
	221	.gem_vm_ops = &drm_gem_cma_vm_ops,
	222	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
	223	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
ffb40400 LP	224	.gem_prime_import = drm_gem_prime_import,
	225	.gem_prime_export = drm_gem_prime_export,
	226	.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
	227	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
	228	.gem_prime_vmap = drm_gem_cma_prime_vmap,
	229	.gem_prime_vunmap = drm_gem_cma_prime_vunmap,
	230	.gem_prime_mmap = drm_gem_cma_prime_mmap,
59e32642	231	.dumb_create = rcar_du_dumb_create,
4bf8e196	232	.dumb_map_offset = drm_gem_cma_dumb_map_offset,
43387b37	233	.dumb_destroy = drm_gem_dumb_destroy,
4bf8e196 LP	234	.fops = &rcar_du_fops,
	235	.name = "rcar-du",
	236	.desc = "Renesas R-Car Display Unit",
	237	.date = "20130110",
	238	.major = 1,
	239	.minor = 0,
	240	};
	241
	242	/* -----------------------------------------------------------------------------
	243	* Power management
	244	*/
	245
396d7a24	246	#ifdef CONFIG_PM_SLEEP
4bf8e196 LP	247	static int rcar_du_pm_suspend(struct device *dev)
	248	{
	249	struct rcar_du_device *rcdu = dev_get_drvdata(dev);
	250
	251	drm_kms_helper_poll_disable(rcdu->ddev);
	252	/* TODO Suspend the CRTC */
	253
	254	return 0;
	255	}
	256
	257	static int rcar_du_pm_resume(struct device *dev)
	258	{
	259	struct rcar_du_device *rcdu = dev_get_drvdata(dev);
	260
	261	/* TODO Resume the CRTC */
	262
	263	drm_kms_helper_poll_enable(rcdu->ddev);
	264	return 0;
	265	}
	266	#endif
	267
	268	static const struct dev_pm_ops rcar_du_pm_ops = {
	269	SET_SYSTEM_SLEEP_PM_OPS(rcar_du_pm_suspend, rcar_du_pm_resume)
	270	};
	271
	272	/* -----------------------------------------------------------------------------
	273	* Platform driver
	274	*/
	275
c1d4b38c	276	static int rcar_du_remove(struct platform_device *pdev)
4bf8e196	277	{
c1d4b38c LP	278	struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
	279	struct drm_device *ddev = rcdu->ddev;
	280
6c87e5c3	281	drm_connector_unregister_all(ddev);
c1d4b38c LP	282	drm_dev_unregister(ddev);
	283
	284	if (rcdu->fbdev)
	285	drm_fbdev_cma_fini(rcdu->fbdev);
	286
	287	drm_kms_helper_poll_fini(ddev);
	288	drm_mode_config_cleanup(ddev);
	289	drm_vblank_cleanup(ddev);
	290
	291	drm_dev_unref(ddev);
	292
	293	return 0;
4bf8e196 LP	294	}
4bf8e196 LP	295
c1d4b38c	296	static int rcar_du_probe(struct platform_device *pdev)
4bf8e196	297	{
c1d4b38c LP	298	struct device_node *np = pdev->dev.of_node;
c1d4b38c LP	299	struct rcar_du_device *rcdu;
c1d4b38c LP	300	struct drm_device *ddev;
	301	struct resource *mem;
	302	int ret;
	303
	304	if (np == NULL) {
	305	dev_err(&pdev->dev, "no device tree node\n");
	306	return -ENODEV;
	307	}
	308
	309	/* Allocate and initialize the DRM and R-Car device structures. */
	310	rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
	311	if (rcdu == NULL)
	312	return -ENOMEM;
	313
	314	init_waitqueue_head(&rcdu->commit.wait);
	315
	316	rcdu->dev = &pdev->dev;
	317	rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
	318
	319	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
	320	if (!ddev)
	321	return -ENOMEM;
	322
	323	drm_dev_set_unique(ddev, dev_name(&pdev->dev));
	324
	325	rcdu->ddev = ddev;
	326	ddev->dev_private = rcdu;
57a24cf8	327
c1d4b38c LP	328	platform_set_drvdata(pdev, rcdu);
	329
	330	/* I/O resources */
	331	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	332	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
	333	if (IS_ERR(rcdu->mmio)) {
	334	ret = PTR_ERR(rcdu->mmio);
	335	goto error;
	336	}
	337
	338	/* Initialize vertical blanking interrupts handling. Start with vblank
	339	* disabled for all CRTCs.
	340	*/
	341	ret = drm_vblank_init(ddev, (1 << rcdu->info->num_crtcs) - 1);
	342	if (ret < 0) {
	343	dev_err(&pdev->dev, "failed to initialize vblank\n");
	344	goto error;
	345	}
	346
	347	/* DRM/KMS objects */
	348	ret = rcar_du_modeset_init(rcdu);
	349	if (ret < 0) {
	350	dev_err(&pdev->dev, "failed to initialize DRM/KMS (%d)\n", ret);
	351	goto error;
	352	}
	353
	354	ddev->irq_enabled = 1;
	355
	356	/* Register the DRM device with the core and the connectors with
	357	* sysfs.
	358	*/
	359	ret = drm_dev_register(ddev, 0);
	360	if (ret)
	361	goto error;
	362
d63c25e4	363	ret = drm_connector_register_all(ddev);
c1d4b38c LP	364	if (ret < 0)
	365	goto error;
	366
	367	DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));
4bf8e196 LP	368
4bf8e196 LP	369	return 0;
c1d4b38c LP	370
	371	error:
	372	rcar_du_remove(pdev);
	373
	374	return ret;
4bf8e196 LP	375	}
	376
	377	static struct platform_driver rcar_du_platform_driver = {
	378	.probe = rcar_du_probe,
	379	.remove = rcar_du_remove,
	380	.driver = {
4bf8e196 LP	381	.name = "rcar-du",
4bf8e196 LP	382	.pm = &rcar_du_pm_ops,
96c02691	383	.of_match_table = rcar_du_of_table,
4bf8e196 LP	384	},
	385	};
	386
	387	module_platform_driver(rcar_du_platform_driver);
	388
	389	MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
	390	MODULE_DESCRIPTION("Renesas R-Car Display Unit DRM Driver");
	391	MODULE_LICENSE("GPL");