[deliverable/linux.git] / drivers / gpu / drm / shmobile / shmob_drm_drv.c

/*
 * shmob_drm_drv.c  --  SH Mobile DRM driver
 *
 * Copyright (C) 2012 Renesas Corporation
 *
 * 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/platform_device.h>
#include <linux/pm.h>
#include <linux/slab.h>

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

#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
#include "shmob_drm_plane.h"
#include "shmob_drm_regs.h"

/* -----------------------------------------------------------------------------
 * Hardware initialization
 */

static int shmob_drm_init_interface(struct shmob_drm_device *sdev)
{
	static const u32 ldmt1r[] = {
		[SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8,
		[SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9,
		[SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A,
		[SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B,
		[SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16,
		[SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18,
		[SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24,
		[SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR,
		[SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A,
		[SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B,
		[SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C,
		[SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D,
		[SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9,
		[SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12,
		[SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A,
		[SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B,
		[SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C,
		[SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18,
		[SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24,
	};

	if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) {
		dev_err(sdev->dev, "invalid interface type %u\n",
			sdev->pdata->iface.interface);
		return -EINVAL;
	}

	sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface];
	return 0;
}

static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
					    enum shmob_drm_clk_source clksrc)
{
	struct clk *clk;
	char *clkname;

	switch (clksrc) {
	case SHMOB_DRM_CLK_BUS:
		clkname = "bus_clk";
		sdev->lddckr = LDDCKR_ICKSEL_BUS;
		break;
	case SHMOB_DRM_CLK_PERIPHERAL:
		clkname = "peripheral_clk";
		sdev->lddckr = LDDCKR_ICKSEL_MIPI;
		break;
	case SHMOB_DRM_CLK_EXTERNAL:
		clkname = NULL;
		sdev->lddckr = LDDCKR_ICKSEL_HDMI;
		break;
	default:
		return -EINVAL;
	}

	clk = devm_clk_get(sdev->dev, clkname);
	if (IS_ERR(clk)) {
		dev_err(sdev->dev, "cannot get dot clock %s\n", clkname);
		return PTR_ERR(clk);
	}

	sdev->clock = clk;
	return 0;
}

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

static int shmob_drm_unload(struct drm_device *dev)
{
	drm_kms_helper_poll_fini(dev);
	drm_mode_config_cleanup(dev);
	drm_vblank_cleanup(dev);
	drm_irq_uninstall(dev);

	dev->dev_private = NULL;

	return 0;
}

static int shmob_drm_load(struct drm_device *dev, unsigned long flags)
{
	struct shmob_drm_platform_data *pdata = dev->dev->platform_data;
	struct platform_device *pdev = dev->platformdev;
	struct shmob_drm_device *sdev;
	struct resource *res;
	unsigned int i;
	int ret;

	if (pdata == NULL) {
		dev_err(dev->dev, "no platform data\n");
		return -EINVAL;
	}

	sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
	if (sdev == NULL) {
		dev_err(dev->dev, "failed to allocate private data\n");
		return -ENOMEM;
	}

	sdev->dev = &pdev->dev;
	sdev->pdata = pdata;
	spin_lock_init(&sdev->irq_lock);

	sdev->ddev = dev;
	dev->dev_private = sdev;

	/* I/O resources and clocks */
	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (res == NULL) {
		dev_err(&pdev->dev, "failed to get memory resource\n");
		return -EINVAL;
	}

	sdev->mmio = devm_ioremap_nocache(&pdev->dev, res->start,
					  resource_size(res));
	if (sdev->mmio == NULL) {
		dev_err(&pdev->dev, "failed to remap memory resource\n");
		return -ENOMEM;
	}

	ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
	if (ret < 0)
		return ret;

	ret = shmob_drm_init_interface(sdev);
	if (ret < 0)
		return ret;

	ret = shmob_drm_modeset_init(sdev);
	if (ret < 0) {
		dev_err(&pdev->dev, "failed to initialize mode setting\n");
		return ret;
	}

	for (i = 0; i < 4; ++i) {
		ret = shmob_drm_plane_create(sdev, i);
		if (ret < 0) {
			dev_err(&pdev->dev, "failed to create plane %u\n", i);
			goto done;
		}
	}

	ret = drm_vblank_init(dev, 1);
	if (ret < 0) {
		dev_err(&pdev->dev, "failed to initialize vblank\n");
		goto done;
	}

	ret = drm_irq_install(dev);
	if (ret < 0) {
		dev_err(&pdev->dev, "failed to install IRQ handler\n");
		goto done;
	}

	platform_set_drvdata(pdev, sdev);

done:
	if (ret)
		shmob_drm_unload(dev);

	return ret;
}

static void shmob_drm_preclose(struct drm_device *dev, struct drm_file *file)
{
	struct shmob_drm_device *sdev = dev->dev_private;

	shmob_drm_crtc_cancel_page_flip(&sdev->crtc, file);
}

static irqreturn_t shmob_drm_irq(int irq, void *arg)
{
	struct drm_device *dev = arg;
	struct shmob_drm_device *sdev = dev->dev_private;
	unsigned long flags;
	u32 status;

	/* Acknowledge interrupts. Putting interrupt enable and interrupt flag
	 * bits in the same register is really brain-dead design and requires
	 * taking a spinlock.
	 */
	spin_lock_irqsave(&sdev->irq_lock, flags);
	status = lcdc_read(sdev, LDINTR);
	lcdc_write(sdev, LDINTR, status ^ LDINTR_STATUS_MASK);
	spin_unlock_irqrestore(&sdev->irq_lock, flags);

	if (status & LDINTR_VES) {
		drm_handle_vblank(dev, 0);
		shmob_drm_crtc_finish_page_flip(&sdev->crtc);
	}

	return IRQ_HANDLED;
}

static int shmob_drm_enable_vblank(struct drm_device *dev, int crtc)
{
	struct shmob_drm_device *sdev = dev->dev_private;

	shmob_drm_crtc_enable_vblank(sdev, true);

	return 0;
}

static void shmob_drm_disable_vblank(struct drm_device *dev, int crtc)
{
	struct shmob_drm_device *sdev = dev->dev_private;

	shmob_drm_crtc_enable_vblank(sdev, false);
}

static const struct file_operations shmob_drm_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,
	.fasync		= drm_fasync,
	.llseek		= no_llseek,
	.mmap		= drm_gem_cma_mmap,
};

static struct drm_driver shmob_drm_driver = {
	.driver_features	= DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET
				| DRIVER_PRIME,
	.load			= shmob_drm_load,
	.unload			= shmob_drm_unload,
	.preclose		= shmob_drm_preclose,
	.irq_handler		= shmob_drm_irq,
	.get_vblank_counter	= drm_vblank_count,
	.enable_vblank		= shmob_drm_enable_vblank,
	.disable_vblank		= shmob_drm_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		= drm_gem_cma_dumb_create,
	.dumb_map_offset	= drm_gem_cma_dumb_map_offset,
	.dumb_destroy		= drm_gem_dumb_destroy,
	.fops			= &shmob_drm_fops,
	.name			= "shmob-drm",
	.desc			= "Renesas SH Mobile DRM",
	.date			= "20120424",
	.major			= 1,
	.minor			= 0,
};

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

#if CONFIG_PM_SLEEP
static int shmob_drm_pm_suspend(struct device *dev)
{
	struct shmob_drm_device *sdev = dev_get_drvdata(dev);

	drm_kms_helper_poll_disable(sdev->ddev);
	shmob_drm_crtc_suspend(&sdev->crtc);

	return 0;
}

static int shmob_drm_pm_resume(struct device *dev)
{
	struct shmob_drm_device *sdev = dev_get_drvdata(dev);

	drm_modeset_lock_all(sdev->ddev);
	shmob_drm_crtc_resume(&sdev->crtc);
	drm_modeset_unlock_all(sdev->ddev);

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

static const struct dev_pm_ops shmob_drm_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume)
};

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

static int shmob_drm_probe(struct platform_device *pdev)
{
	return drm_platform_init(&shmob_drm_driver, pdev);
}

static int shmob_drm_remove(struct platform_device *pdev)
{
	drm_platform_exit(&shmob_drm_driver, pdev);

	return 0;
}

static struct platform_driver shmob_drm_platform_driver = {
	.probe		= shmob_drm_probe,
	.remove		= shmob_drm_remove,
	.driver		= {
		.owner	= THIS_MODULE,
		.name	= "shmob-drm",
		.pm	= &shmob_drm_pm_ops,
	},
};

module_platform_driver(shmob_drm_platform_driver);

MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
MODULE_DESCRIPTION("Renesas SH Mobile DRM Driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
51c13278 LP	1	/*
	2	* shmob_drm_drv.c -- SH Mobile DRM driver
	3	*
	4	* Copyright (C) 2012 Renesas Corporation
	5	*
	6	* 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>
	18	#include <linux/platform_device.h>
	19	#include <linux/pm.h>
	20	#include <linux/slab.h>
	21
	22	#include <drm/drmP.h>
	23	#include <drm/drm_crtc_helper.h>
	24	#include <drm/drm_gem_cma_helper.h>
	25
	26	#include "shmob_drm_crtc.h"
	27	#include "shmob_drm_drv.h"
	28	#include "shmob_drm_kms.h"
	29	#include "shmob_drm_plane.h"
	30	#include "shmob_drm_regs.h"
	31
	32	/* -----------------------------------------------------------------------------
	33	* Hardware initialization
	34	*/
	35
56550d94	36	static int shmob_drm_init_interface(struct shmob_drm_device *sdev)
51c13278 LP	37	{
	38	static const u32 ldmt1r[] = {
	39	[SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8,
	40	[SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9,
	41	[SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A,
	42	[SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B,
	43	[SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16,
	44	[SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18,
	45	[SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24,
	46	[SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR,
	47	[SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS8A,
	48	[SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS8B,
	49	[SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS8C,
	50	[SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS8D,
	51	[SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS9,
	52	[SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS12,
	53	[SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS16A,
	54	[SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS16B,
	55	[SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS16C,
	56	[SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS18,
	57	[SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM \| LDMT1R_MIFTYP_SYS24,
	58	};
	59
	60	if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) {
	61	dev_err(sdev->dev, "invalid interface type %u\n",
	62	sdev->pdata->iface.interface);
	63	return -EINVAL;
	64	}
	65
	66	sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface];
	67	return 0;
	68	}
	69
56550d94	70	static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
51c13278 LP	71	enum shmob_drm_clk_source clksrc)
	72	{
	73	struct clk *clk;
	74	char *clkname;
	75
	76	switch (clksrc) {
	77	case SHMOB_DRM_CLK_BUS:
	78	clkname = "bus_clk";
	79	sdev->lddckr = LDDCKR_ICKSEL_BUS;
	80	break;
	81	case SHMOB_DRM_CLK_PERIPHERAL:
	82	clkname = "peripheral_clk";
	83	sdev->lddckr = LDDCKR_ICKSEL_MIPI;
	84	break;
	85	case SHMOB_DRM_CLK_EXTERNAL:
	86	clkname = NULL;
	87	sdev->lddckr = LDDCKR_ICKSEL_HDMI;
	88	break;
	89	default:
	90	return -EINVAL;
	91	}
	92
16ad3b2c	93	clk = devm_clk_get(sdev->dev, clkname);
51c13278 LP	94	if (IS_ERR(clk)) {
	95	dev_err(sdev->dev, "cannot get dot clock %s\n", clkname);
	96	return PTR_ERR(clk);
	97	}
	98
	99	sdev->clock = clk;
	100	return 0;
	101	}
	102
	103	/* -----------------------------------------------------------------------------
	104	* DRM operations
	105	*/
	106
	107	static int shmob_drm_unload(struct drm_device *dev)
	108	{
51c13278 LP	109	drm_kms_helper_poll_fini(dev);
	110	drm_mode_config_cleanup(dev);
	111	drm_vblank_cleanup(dev);
	112	drm_irq_uninstall(dev);
	113
51c13278	114	dev->dev_private = NULL;
51c13278 LP	115
	116	return 0;
	117	}
	118
	119	static int shmob_drm_load(struct drm_device *dev, unsigned long flags)
	120	{
	121	struct shmob_drm_platform_data *pdata = dev->dev->platform_data;
	122	struct platform_device *pdev = dev->platformdev;
	123	struct shmob_drm_device *sdev;
	124	struct resource *res;
	125	unsigned int i;
	126	int ret;
	127
	128	if (pdata == NULL) {
	129	dev_err(dev->dev, "no platform data\n");
	130	return -EINVAL;
	131	}
	132
16ad3b2c	133	sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
51c13278 LP	134	if (sdev == NULL) {
	135	dev_err(dev->dev, "failed to allocate private data\n");
	136	return -ENOMEM;
	137	}
	138
	139	sdev->dev = &pdev->dev;
	140	sdev->pdata = pdata;
	141	spin_lock_init(&sdev->irq_lock);
	142
	143	sdev->ddev = dev;
	144	dev->dev_private = sdev;
	145
	146	/* I/O resources and clocks */
	147	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	148	if (res == NULL) {
	149	dev_err(&pdev->dev, "failed to get memory resource\n");
16ad3b2c	150	return -EINVAL;
51c13278 LP	151	}
51c13278 LP	152
16ad3b2c LP	153	sdev->mmio = devm_ioremap_nocache(&pdev->dev, res->start,
16ad3b2c LP	154	resource_size(res));
51c13278 LP	155	if (sdev->mmio == NULL) {
51c13278 LP	156	dev_err(&pdev->dev, "failed to remap memory resource\n");
16ad3b2c	157	return -ENOMEM;
51c13278 LP	158	}
	159
	160	ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
	161	if (ret < 0)
16ad3b2c	162	return ret;
51c13278 LP	163
	164	ret = shmob_drm_init_interface(sdev);
	165	if (ret < 0)
16ad3b2c	166	return ret;
51c13278 LP	167
	168	ret = shmob_drm_modeset_init(sdev);
	169	if (ret < 0) {
	170	dev_err(&pdev->dev, "failed to initialize mode setting\n");
16ad3b2c	171	return ret;
51c13278 LP	172	}
	173
	174	for (i = 0; i < 4; ++i) {
	175	ret = shmob_drm_plane_create(sdev, i);
	176	if (ret < 0) {
	177	dev_err(&pdev->dev, "failed to create plane %u\n", i);
	178	goto done;
	179	}
	180	}
	181
	182	ret = drm_vblank_init(dev, 1);
	183	if (ret < 0) {
	184	dev_err(&pdev->dev, "failed to initialize vblank\n");
	185	goto done;
	186	}
	187
	188	ret = drm_irq_install(dev);
	189	if (ret < 0) {
	190	dev_err(&pdev->dev, "failed to install IRQ handler\n");
	191	goto done;
	192	}
	193
a16d4f86 TR	194	platform_set_drvdata(pdev, sdev);
a16d4f86 TR	195
51c13278 LP	196	done:
	197	if (ret)
	198	shmob_drm_unload(dev);
	199
	200	return ret;
	201	}
	202
	203	static void shmob_drm_preclose(struct drm_device dev, struct drm_file file)
	204	{
	205	struct shmob_drm_device *sdev = dev->dev_private;
	206
	207	shmob_drm_crtc_cancel_page_flip(&sdev->crtc, file);
	208	}
	209
	210	static irqreturn_t shmob_drm_irq(int irq, void *arg)
	211	{
	212	struct drm_device *dev = arg;
	213	struct shmob_drm_device *sdev = dev->dev_private;
	214	unsigned long flags;
	215	u32 status;
	216
	217	/* Acknowledge interrupts. Putting interrupt enable and interrupt flag
	218	* bits in the same register is really brain-dead design and requires
	219	* taking a spinlock.
	220	*/
	221	spin_lock_irqsave(&sdev->irq_lock, flags);
	222	status = lcdc_read(sdev, LDINTR);
	223	lcdc_write(sdev, LDINTR, status ^ LDINTR_STATUS_MASK);
	224	spin_unlock_irqrestore(&sdev->irq_lock, flags);
	225
	226	if (status & LDINTR_VES) {
	227	drm_handle_vblank(dev, 0);
	228	shmob_drm_crtc_finish_page_flip(&sdev->crtc);
	229	}
	230
	231	return IRQ_HANDLED;
	232	}
	233
	234	static int shmob_drm_enable_vblank(struct drm_device *dev, int crtc)
	235	{
	236	struct shmob_drm_device *sdev = dev->dev_private;
	237
	238	shmob_drm_crtc_enable_vblank(sdev, true);
	239
	240	return 0;
	241	}
	242
	243	static void shmob_drm_disable_vblank(struct drm_device *dev, int crtc)
	244	{
	245	struct shmob_drm_device *sdev = dev->dev_private;
	246
	247	shmob_drm_crtc_enable_vblank(sdev, false);
	248	}
	249
	250	static const struct file_operations shmob_drm_fops = {
	251	.owner = THIS_MODULE,
	252	.open = drm_open,
	253	.release = drm_release,
	254	.unlocked_ioctl = drm_ioctl,
	255	#ifdef CONFIG_COMPAT
	256	.compat_ioctl = drm_compat_ioctl,
	257	#endif
	258	.poll = drm_poll,
	259	.read = drm_read,
260	.fasync = drm_fasync,
261	.llseek = no_llseek,
262	.mmap = drm_gem_cma_mmap,
263	};
264
265	static struct drm_driver shmob_drm_driver = {
416c3900 LP	266	.driver_features = DRIVER_HAVE_IRQ \| DRIVER_GEM \| DRIVER_MODESET
416c3900 LP	267	\| DRIVER_PRIME,
51c13278 LP	268	.load = shmob_drm_load,
	269	.unload = shmob_drm_unload,
	270	.preclose = shmob_drm_preclose,
	271	.irq_handler = shmob_drm_irq,
	272	.get_vblank_counter = drm_vblank_count,
	273	.enable_vblank = shmob_drm_enable_vblank,
	274	.disable_vblank = shmob_drm_disable_vblank,
	275	.gem_free_object = drm_gem_cma_free_object,
	276	.gem_vm_ops = &drm_gem_cma_vm_ops,
416c3900 LP	277	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
416c3900 LP	278	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
58cbd3ac LP	279	.gem_prime_import = drm_gem_prime_import,
	280	.gem_prime_export = drm_gem_prime_export,
	281	.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
	282	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
	283	.gem_prime_vmap = drm_gem_cma_prime_vmap,
	284	.gem_prime_vunmap = drm_gem_cma_prime_vunmap,
	285	.gem_prime_mmap = drm_gem_cma_prime_mmap,
51c13278 LP	286	.dumb_create = drm_gem_cma_dumb_create,
51c13278 LP	287	.dumb_map_offset = drm_gem_cma_dumb_map_offset,
43387b37	288	.dumb_destroy = drm_gem_dumb_destroy,
51c13278 LP	289	.fops = &shmob_drm_fops,
	290	.name = "shmob-drm",
	291	.desc = "Renesas SH Mobile DRM",
	292	.date = "20120424",
	293	.major = 1,
	294	.minor = 0,
	295	};
	296
	297	/* -----------------------------------------------------------------------------
	298	* Power management
	299	*/
	300
	301	#if CONFIG_PM_SLEEP
	302	static int shmob_drm_pm_suspend(struct device *dev)
	303	{
a16d4f86	304	struct shmob_drm_device *sdev = dev_get_drvdata(dev);
51c13278	305
a16d4f86	306	drm_kms_helper_poll_disable(sdev->ddev);
51c13278 LP	307	shmob_drm_crtc_suspend(&sdev->crtc);
	308
	309	return 0;
	310	}
	311
	312	static int shmob_drm_pm_resume(struct device *dev)
	313	{
a16d4f86	314	struct shmob_drm_device *sdev = dev_get_drvdata(dev);
51c13278	315
b13f5980	316	drm_modeset_lock_all(sdev->ddev);
51c13278	317	shmob_drm_crtc_resume(&sdev->crtc);
b13f5980	318	drm_modeset_unlock_all(sdev->ddev);
51c13278 LP	319
	320	drm_kms_helper_poll_enable(sdev->ddev);
	321	return 0;
	322	}
	323	#endif
	324
	325	static const struct dev_pm_ops shmob_drm_pm_ops = {
	326	SET_SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume)
	327	};
	328
	329	/* -----------------------------------------------------------------------------
	330	* Platform driver
	331	*/
	332
56550d94	333	static int shmob_drm_probe(struct platform_device *pdev)
51c13278 LP	334	{
	335	return drm_platform_init(&shmob_drm_driver, pdev);
	336	}
	337
56550d94	338	static int shmob_drm_remove(struct platform_device *pdev)
51c13278 LP	339	{
	340	drm_platform_exit(&shmob_drm_driver, pdev);
	341
	342	return 0;
	343	}
	344
	345	static struct platform_driver shmob_drm_platform_driver = {
	346	.probe = shmob_drm_probe,
56550d94	347	.remove = shmob_drm_remove,
51c13278 LP	348	.driver = {
	349	.owner = THIS_MODULE,
	350	.name = "shmob-drm",
	351	.pm = &shmob_drm_pm_ops,
	352	},
	353	};
	354
	355	module_platform_driver(shmob_drm_platform_driver);
	356
	357	MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
	358	MODULE_DESCRIPTION("Renesas SH Mobile DRM Driver");
	359	MODULE_LICENSE("GPL");