[thirdparty/kernel/stable.git] / drivers / gpu / drm / imx / imx-drm-core.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Freescale i.MX drm driver
 *
 * Copyright (C) 2011 Sascha Hauer, Pengutronix
 */
#include <linux/component.h>
#include <linux/device.h>
#include <linux/dma-buf.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_of.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_probe_helper.h>
#include <video/imx-ipu-v3.h>

#include "imx-drm.h"
#include "ipuv3-plane.h"

#define MAX_CRTC	4

static int legacyfb_depth = 16;
module_param(legacyfb_depth, int, 0444);

DEFINE_DRM_GEM_CMA_FOPS(imx_drm_driver_fops);

void imx_drm_connector_destroy(struct drm_connector *connector)
{
	drm_connector_unregister(connector);
	drm_connector_cleanup(connector);
}
EXPORT_SYMBOL_GPL(imx_drm_connector_destroy);

void imx_drm_encoder_destroy(struct drm_encoder *encoder)
{
	drm_encoder_cleanup(encoder);
}
EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy);

static int imx_drm_atomic_check(struct drm_device *dev,
				struct drm_atomic_state *state)
{
	int ret;

	ret = drm_atomic_helper_check_modeset(dev, state);
	if (ret)
		return ret;

	ret = drm_atomic_helper_check_planes(dev, state);
	if (ret)
		return ret;

	/*
	 * Check modeset again in case crtc_state->mode_changed is
	 * updated in plane's ->atomic_check callback.
	 */
	ret = drm_atomic_helper_check_modeset(dev, state);
	if (ret)
		return ret;

	/* Assign PRG/PRE channels and check if all constrains are satisfied. */
	ret = ipu_planes_assign_pre(dev, state);
	if (ret)
		return ret;

	return ret;
}

static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
	.fb_create = drm_gem_fb_create,
	.atomic_check = imx_drm_atomic_check,
	.atomic_commit = drm_atomic_helper_commit,
};

static void imx_drm_atomic_commit_tail(struct drm_atomic_state *state)
{
	struct drm_device *dev = state->dev;
	struct drm_plane *plane;
	struct drm_plane_state *old_plane_state, *new_plane_state;
	bool plane_disabling = false;
	int i;

	drm_atomic_helper_commit_modeset_disables(dev, state);

	drm_atomic_helper_commit_planes(dev, state,
				DRM_PLANE_COMMIT_ACTIVE_ONLY |
				DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET);

	drm_atomic_helper_commit_modeset_enables(dev, state);

	for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
		if (drm_atomic_plane_disabling(old_plane_state, new_plane_state))
			plane_disabling = true;
	}

	/*
	 * The flip done wait is only strictly required by imx-drm if a deferred
	 * plane disable is in-flight. As the core requires blocking commits
	 * to wait for the flip it is done here unconditionally. This keeps the
	 * workitem around a bit longer than required for the majority of
	 * non-blocking commits, but we accept that for the sake of simplicity.
	 */
	drm_atomic_helper_wait_for_flip_done(dev, state);

	if (plane_disabling) {
		for_each_old_plane_in_state(state, plane, old_plane_state, i)
			ipu_plane_disable_deferred(plane);

	}

	drm_atomic_helper_commit_hw_done(state);
}

static const struct drm_mode_config_helper_funcs imx_drm_mode_config_helpers = {
	.atomic_commit_tail = imx_drm_atomic_commit_tail,
};


int imx_drm_encoder_parse_of(struct drm_device *drm,
	struct drm_encoder *encoder, struct device_node *np)
{
	uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np);

	/*
	 * If we failed to find the CRTC(s) which this encoder is
	 * supposed to be connected to, it's because the CRTC has
	 * not been registered yet.  Defer probing, and hope that
	 * the required CRTC is added later.
	 */
	if (crtc_mask == 0)
		return -EPROBE_DEFER;

	encoder->possible_crtcs = crtc_mask;

	/* FIXME: this is the mask of outputs which can clone this output. */
	encoder->possible_clones = ~0;

	return 0;
}
EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);

static const struct drm_ioctl_desc imx_drm_ioctls[] = {
	/* none so far */
};

static struct drm_driver imx_drm_driver = {
	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
				  DRIVER_ATOMIC,
	.gem_free_object_unlocked = drm_gem_cma_free_object,
	.gem_vm_ops		= &drm_gem_cma_vm_ops,
	.dumb_create		= drm_gem_cma_dumb_create,

	.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,
	.ioctls			= imx_drm_ioctls,
	.num_ioctls		= ARRAY_SIZE(imx_drm_ioctls),
	.fops			= &imx_drm_driver_fops,
	.name			= "imx-drm",
	.desc			= "i.MX DRM graphics",
	.date			= "20120507",
	.major			= 1,
	.minor			= 0,
	.patchlevel		= 0,
};

static int compare_of(struct device *dev, void *data)
{
	struct device_node *np = data;

	/* Special case for DI, dev->of_node may not be set yet */
	if (strcmp(dev->driver->name, "imx-ipuv3-crtc") == 0) {
		struct ipu_client_platformdata *pdata = dev->platform_data;

		return pdata->of_node == np;
	}

	/* Special case for LDB, one device for two channels */
	if (of_node_cmp(np->name, "lvds-channel") == 0) {
		np = of_get_parent(np);
		of_node_put(np);
	}

	return dev->of_node == np;
}

static int imx_drm_bind(struct device *dev)
{
	struct drm_device *drm;
	int ret;

	drm = drm_dev_alloc(&imx_drm_driver, dev);
	if (IS_ERR(drm))
		return PTR_ERR(drm);

	/*
	 * enable drm irq mode.
	 * - with irq_enabled = true, we can use the vblank feature.
	 *
	 * P.S. note that we wouldn't use drm irq handler but
	 *      just specific driver own one instead because
	 *      drm framework supports only one irq handler and
	 *      drivers can well take care of their interrupts
	 */
	drm->irq_enabled = true;

	/*
	 * set max width and height as default value(4096x4096).
	 * this value would be used to check framebuffer size limitation
	 * at drm_mode_addfb().
	 */
	drm->mode_config.min_width = 1;
	drm->mode_config.min_height = 1;
	drm->mode_config.max_width = 4096;
	drm->mode_config.max_height = 4096;
	drm->mode_config.funcs = &imx_drm_mode_config_funcs;
	drm->mode_config.helper_private = &imx_drm_mode_config_helpers;
	drm->mode_config.allow_fb_modifiers = true;

	drm_mode_config_init(drm);

	ret = drm_vblank_init(drm, MAX_CRTC);
	if (ret)
		goto err_kms;

	dev_set_drvdata(dev, drm);

	/* Now try and bind all our sub-components */
	ret = component_bind_all(dev, drm);
	if (ret)
		goto err_kms;

	drm_mode_config_reset(drm);

	/*
	 * All components are now initialised, so setup the fb helper.
	 * The fb helper takes copies of key hardware information, so the
	 * crtcs/connectors/encoders must not change after this point.
	 */
	if (legacyfb_depth != 16 && legacyfb_depth != 32) {
		dev_warn(dev, "Invalid legacyfb_depth.  Defaulting to 16bpp\n");
		legacyfb_depth = 16;
	}

	drm_kms_helper_poll_init(drm);

	ret = drm_dev_register(drm, 0);
	if (ret)
		goto err_poll_fini;

	drm_fbdev_generic_setup(drm, legacyfb_depth);

	return 0;

err_poll_fini:
	drm_kms_helper_poll_fini(drm);
	component_unbind_all(drm->dev, drm);
err_kms:
	drm_mode_config_cleanup(drm);
	drm_dev_put(drm);

	return ret;
}

static void imx_drm_unbind(struct device *dev)
{
	struct drm_device *drm = dev_get_drvdata(dev);

	drm_dev_unregister(drm);

	drm_kms_helper_poll_fini(drm);

	drm_mode_config_cleanup(drm);

	component_unbind_all(drm->dev, drm);
	dev_set_drvdata(dev, NULL);

	drm_dev_put(drm);
}

static const struct component_master_ops imx_drm_ops = {
	.bind = imx_drm_bind,
	.unbind = imx_drm_unbind,
};

static int imx_drm_platform_probe(struct platform_device *pdev)
{
	int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops);

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

	return ret;
}

static int imx_drm_platform_remove(struct platform_device *pdev)
{
	component_master_del(&pdev->dev, &imx_drm_ops);
	return 0;
}

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

	return drm_mode_config_helper_suspend(drm_dev);
}

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

	return drm_mode_config_helper_resume(drm_dev);
}
#endif

static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume);

static const struct of_device_id imx_drm_dt_ids[] = {
	{ .compatible = "fsl,imx-display-subsystem", },
	{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, imx_drm_dt_ids);

static struct platform_driver imx_drm_pdrv = {
	.probe		= imx_drm_platform_probe,
	.remove		= imx_drm_platform_remove,
	.driver		= {
		.name	= "imx-drm",
		.pm	= &imx_drm_pm_ops,
		.of_match_table = imx_drm_dt_ids,
	},
};

static struct platform_driver * const drivers[] = {
	&imx_drm_pdrv,
	&ipu_drm_driver,
};

static int __init imx_drm_init(void)
{
	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
}
module_init(imx_drm_init);

static void __exit imx_drm_exit(void)
{
	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
module_exit(imx_drm_exit);

MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("i.MX drm driver core");
MODULE_LICENSE("GPL");
Commit	Line	Data
946485d0	1	// SPDX-License-Identifier: GPL-2.0+
e692da4d SH	2	/*
	3	* Freescale i.MX drm driver
	4	*
	5	* Copyright (C) 2011 Sascha Hauer, Pengutronix
e692da4d	6	*/
17b5001b	7	#include <linux/component.h>
e692da4d	8	#include <linux/device.h>
5f2f9115	9	#include <linux/dma-buf.h>
e7d6231e	10	#include <linux/module.h>
e692da4d SH	11	#include <linux/platform_device.h>
e692da4d SH	12	#include <drm/drmP.h>
5f2f9115 LY	13	#include <drm/drm_atomic.h>
5f2f9115 LY	14	#include <drm/drm_atomic_helper.h>
fcd70cd3	15	#include <drm/drm_fb_cma_helper.h>
e692da4d	16	#include <drm/drm_fb_helper.h>
e692da4d	17	#include <drm/drm_gem_cma_helper.h>
bd106353	18	#include <drm/drm_gem_framebuffer_helper.h>
6457b971	19	#include <drm/drm_of.h>
fcd70cd3 DV	20	#include <drm/drm_plane_helper.h>
fcd70cd3 DV	21	#include <drm/drm_probe_helper.h>
310944d1	22	#include <video/imx-ipu-v3.h>
e692da4d SH	23
e692da4d SH	24	#include "imx-drm.h"
eb8c8880	25	#include "ipuv3-plane.h"
e692da4d SH	26
	27	#define MAX_CRTC 4
	28
8acba02f RK	29	static int legacyfb_depth = 16;
	30	module_param(legacyfb_depth, int, 0444);
	31
d55f7e5d	32	DEFINE_DRM_GEM_CMA_FOPS(imx_drm_driver_fops);
e692da4d	33
8a51a33b RK	34	void imx_drm_connector_destroy(struct drm_connector *connector)
8a51a33b RK	35	{
34ea3d38	36	drm_connector_unregister(connector);
8a51a33b RK	37	drm_connector_cleanup(connector);
	38	}
	39	EXPORT_SYMBOL_GPL(imx_drm_connector_destroy);
	40
	41	void imx_drm_encoder_destroy(struct drm_encoder *encoder)
	42	{
	43	drm_encoder_cleanup(encoder);
	44	}
	45	EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy);
	46
1780999c LY	47	static int imx_drm_atomic_check(struct drm_device *dev,
	48	struct drm_atomic_state *state)
	49	{
	50	int ret;
	51
	52	ret = drm_atomic_helper_check_modeset(dev, state);
	53	if (ret)
	54	return ret;
	55
	56	ret = drm_atomic_helper_check_planes(dev, state);
	57	if (ret)
	58	return ret;
	59
	60	/*
	61	* Check modeset again in case crtc_state->mode_changed is
	62	* updated in plane's ->atomic_check callback.
	63	*/
	64	ret = drm_atomic_helper_check_modeset(dev, state);
	65	if (ret)
	66	return ret;
	67
00514e85 LS	68	/* Assign PRG/PRE channels and check if all constrains are satisfied. */
	69	ret = ipu_planes_assign_pre(dev, state);
	70	if (ret)
	71	return ret;
	72
1780999c LY	73	return ret;
	74	}
	75
7ae847dd	76	static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
bd106353	77	.fb_create = drm_gem_fb_create,
1780999c	78	.atomic_check = imx_drm_atomic_check,
782ea2a4	79	.atomic_commit = drm_atomic_helper_commit,
5f2f9115 LY	80	};
	81
	82	static void imx_drm_atomic_commit_tail(struct drm_atomic_state *state)
	83	{
	84	struct drm_device *dev = state->dev;
eb8c8880	85	struct drm_plane *plane;
30ea7521	86	struct drm_plane_state old_plane_state, new_plane_state;
eb8c8880 PZ	87	bool plane_disabling = false;
eb8c8880 PZ	88	int i;
5f2f9115 LY	89
	90	drm_atomic_helper_commit_modeset_disables(dev, state);
	91
2b58e98d	92	drm_atomic_helper_commit_planes(dev, state,
5f4df0c7 LY	93	DRM_PLANE_COMMIT_ACTIVE_ONLY \|
5f4df0c7 LY	94	DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET);
5f2f9115 LY	95
	96	drm_atomic_helper_commit_modeset_enables(dev, state);
	97
30ea7521 ML	98	for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
30ea7521 ML	99	if (drm_atomic_plane_disabling(old_plane_state, new_plane_state))
eb8c8880 PZ	100	plane_disabling = true;
	101	}
	102
a1529920 LS	103	/*
	104	* The flip done wait is only strictly required by imx-drm if a deferred
	105	* plane disable is in-flight. As the core requires blocking commits
	106	* to wait for the flip it is done here unconditionally. This keeps the
	107	* workitem around a bit longer than required for the majority of
	108	* non-blocking commits, but we accept that for the sake of simplicity.
	109	*/
	110	drm_atomic_helper_wait_for_flip_done(dev, state);
eb8c8880	111
a1529920	112	if (plane_disabling) {
30ea7521	113	for_each_old_plane_in_state(state, plane, old_plane_state, i)
eb8c8880 PZ	114	ipu_plane_disable_deferred(plane);
	115
	116	}
	117
5f2f9115	118	drm_atomic_helper_commit_hw_done(state);
5f2f9115 LY	119	}
5f2f9115 LY	120
a4b10cce	121	static const struct drm_mode_config_helper_funcs imx_drm_mode_config_helpers = {
5f2f9115	122	.atomic_commit_tail = imx_drm_atomic_commit_tail,
1df8b530 RK	123	};
1df8b530 RK	124
e692da4d	125
6457b971 RK	126	int imx_drm_encoder_parse_of(struct drm_device *drm,
6457b971 RK	127	struct drm_encoder encoder, struct device_node np)
9e2d410d	128	{
6457b971	129	uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np);
9e2d410d	130
6457b971 RK	131	/*
	132	* If we failed to find the CRTC(s) which this encoder is
	133	* supposed to be connected to, it's because the CRTC has
	134	* not been registered yet. Defer probing, and hope that
	135	* the required CRTC is added later.
	136	*/
	137	if (crtc_mask == 0)
	138	return -EPROBE_DEFER;
655b43cc	139
6457b971	140	encoder->possible_crtcs = crtc_mask;
63bc5164	141
6457b971 RK	142	/* FIXME: this is the mask of outputs which can clone this output. */
6457b971 RK	143	encoder->possible_clones = ~0;
9e2d410d RK	144
	145	return 0;
	146	}
6457b971	147	EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);
9e2d410d	148
baa70943	149	static const struct drm_ioctl_desc imx_drm_ioctls[] = {
e692da4d SH	150	/* none so far */
	151	};
	152
	153	static struct drm_driver imx_drm_driver = {
8535c022 LY	154	.driver_features = DRIVER_MODESET \| DRIVER_GEM \| DRIVER_PRIME \|
8535c022 LY	155	DRIVER_ATOMIC,
4b193663	156	.gem_free_object_unlocked = drm_gem_cma_free_object,
e692da4d SH	157	.gem_vm_ops = &drm_gem_cma_vm_ops,
e692da4d SH	158	.dumb_create = drm_gem_cma_dumb_create,
e692da4d	159
bd3665c9 PZ	160	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
	161	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
	162	.gem_prime_import = drm_gem_prime_import,
	163	.gem_prime_export = drm_gem_prime_export,
	164	.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
	165	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
	166	.gem_prime_vmap = drm_gem_cma_prime_vmap,
	167	.gem_prime_vunmap = drm_gem_cma_prime_vunmap,
	168	.gem_prime_mmap = drm_gem_cma_prime_mmap,
e692da4d SH	169	.ioctls = imx_drm_ioctls,
	170	.num_ioctls = ARRAY_SIZE(imx_drm_ioctls),
	171	.fops = &imx_drm_driver_fops,
	172	.name = "imx-drm",
	173	.desc = "i.MX DRM graphics",
	174	.date = "20120507",
	175	.major = 1,
	176	.minor = 0,
	177	.patchlevel = 0,
	178	};
	179
17b5001b RK	180	static int compare_of(struct device dev, void data)
17b5001b RK	181	{
655b43cc	182	struct device_node *np = data;
17b5001b	183
310944d1 PZ	184	/* Special case for DI, dev->of_node may not be set yet */
	185	if (strcmp(dev->driver->name, "imx-ipuv3-crtc") == 0) {
	186	struct ipu_client_platformdata *pdata = dev->platform_data;
	187
	188	return pdata->of_node == np;
	189	}
	190
655b43cc PZ	191	/* Special case for LDB, one device for two channels */
	192	if (of_node_cmp(np->name, "lvds-channel") == 0) {
	193	np = of_get_parent(np);
	194	of_node_put(np);
17b5001b RK	195	}
17b5001b RK	196
655b43cc PZ	197	return dev->of_node == np;
655b43cc PZ	198	}
17b5001b	199
17b5001b RK	200	static int imx_drm_bind(struct device *dev)
17b5001b RK	201	{
54db5dec	202	struct drm_device *drm;
54db5dec LS	203	int ret;
	204
	205	drm = drm_dev_alloc(&imx_drm_driver, dev);
8cca3548 DC	206	if (IS_ERR(drm))
8cca3548 DC	207	return PTR_ERR(drm);
54db5dec	208
54db5dec LS	209	/*
	210	* enable drm irq mode.
	211	* - with irq_enabled = true, we can use the vblank feature.
	212	*
	213	* P.S. note that we wouldn't use drm irq handler but
	214	* just specific driver own one instead because
	215	* drm framework supports only one irq handler and
	216	* drivers can well take care of their interrupts
	217	*/
	218	drm->irq_enabled = true;
	219
	220	/*
	221	* set max width and height as default value(4096x4096).
	222	* this value would be used to check framebuffer size limitation
	223	* at drm_mode_addfb().
	224	*/
f57c511a PZ	225	drm->mode_config.min_width = 1;
f57c511a PZ	226	drm->mode_config.min_height = 1;
54db5dec LS	227	drm->mode_config.max_width = 4096;
	228	drm->mode_config.max_height = 4096;
	229	drm->mode_config.funcs = &imx_drm_mode_config_funcs;
	230	drm->mode_config.helper_private = &imx_drm_mode_config_helpers;
9222f768	231	drm->mode_config.allow_fb_modifiers = true;
54db5dec LS	232
	233	drm_mode_config_init(drm);
	234
	235	ret = drm_vblank_init(drm, MAX_CRTC);
	236	if (ret)
	237	goto err_kms;
	238
	239	dev_set_drvdata(dev, drm);
	240
	241	/* Now try and bind all our sub-components */
	242	ret = component_bind_all(dev, drm);
	243	if (ret)
85769cf7	244	goto err_kms;
54db5dec LS	245
	246	drm_mode_config_reset(drm);
	247
	248	/*
	249	* All components are now initialised, so setup the fb helper.
	250	* The fb helper takes copies of key hardware information, so the
	251	* crtcs/connectors/encoders must not change after this point.
	252	*/
54db5dec LS	253	if (legacyfb_depth != 16 && legacyfb_depth != 32) {
	254	dev_warn(dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n");
	255	legacyfb_depth = 16;
	256	}
54db5dec LS	257
	258	drm_kms_helper_poll_init(drm);
	259
	260	ret = drm_dev_register(drm, 0);
	261	if (ret)
f53705fd NT	262	goto err_poll_fini;
	263
	264	drm_fbdev_generic_setup(drm, legacyfb_depth);
54db5dec LS	265
	266	return 0;
	267
f53705fd	268	err_poll_fini:
54db5dec	269	drm_kms_helper_poll_fini(drm);
54db5dec	270	component_unbind_all(drm->dev, drm);
54db5dec LS	271	err_kms:
54db5dec LS	272	drm_mode_config_cleanup(drm);
1ef2917d	273	drm_dev_put(drm);
54db5dec LS	274
54db5dec LS	275	return ret;
17b5001b RK	276	}
	277
	278	static void imx_drm_unbind(struct device *dev)
	279	{
54db5dec	280	struct drm_device *drm = dev_get_drvdata(dev);
54db5dec LS	281
	282	drm_dev_unregister(drm);
	283
	284	drm_kms_helper_poll_fini(drm);
	285
8e3b16e2 LS	286	drm_mode_config_cleanup(drm);
8e3b16e2 LS	287
54db5dec LS	288	component_unbind_all(drm->dev, drm);
	289	dev_set_drvdata(dev, NULL);
	290
1ef2917d	291	drm_dev_put(drm);
17b5001b RK	292	}
	293
	294	static const struct component_master_ops imx_drm_ops = {
17b5001b RK	295	.bind = imx_drm_bind,
	296	.unbind = imx_drm_unbind,
	297	};
	298
e692da4d SH	299	static int imx_drm_platform_probe(struct platform_device *pdev)
e692da4d SH	300	{
9cace32f	301	int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops);
655b43cc	302
9cace32f LD	303	if (!ret)
9cace32f LD	304	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
655b43cc	305
9cace32f	306	return ret;
e692da4d SH	307	}
	308
	309	static int imx_drm_platform_remove(struct platform_device *pdev)
	310	{
17b5001b	311	component_master_del(&pdev->dev, &imx_drm_ops);
e692da4d SH	312	return 0;
	313	}
	314
bfe945c8 SG	315	#ifdef CONFIG_PM_SLEEP
	316	static int imx_drm_suspend(struct device *dev)
	317	{
	318	struct drm_device *drm_dev = dev_get_drvdata(dev);
bfe945c8	319
64f2cafc	320	return drm_mode_config_helper_suspend(drm_dev);
bfe945c8 SG	321	}
	322
	323	static int imx_drm_resume(struct device *dev)
	324	{
	325	struct drm_device *drm_dev = dev_get_drvdata(dev);
	326
64f2cafc	327	return drm_mode_config_helper_resume(drm_dev);
bfe945c8 SG	328	}
	329	#endif
	330
	331	static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume);
	332
17b5001b	333	static const struct of_device_id imx_drm_dt_ids[] = {
655b43cc	334	{ .compatible = "fsl,imx-display-subsystem", },
17b5001b RK	335	{ /* sentinel */ },
	336	};
	337	MODULE_DEVICE_TABLE(of, imx_drm_dt_ids);
	338
e692da4d SH	339	static struct platform_driver imx_drm_pdrv = {
e692da4d SH	340	.probe = imx_drm_platform_probe,
99c28f10	341	.remove = imx_drm_platform_remove,
e692da4d	342	.driver = {
e692da4d	343	.name = "imx-drm",
bfe945c8	344	.pm = &imx_drm_pm_ops,
17b5001b	345	.of_match_table = imx_drm_dt_ids,
e692da4d SH	346	},
e692da4d SH	347	};
3d1df96a LS	348
	349	static struct platform_driver * const drivers[] = {
	350	&imx_drm_pdrv,
	351	&ipu_drm_driver,
	352	};
	353
	354	static int __init imx_drm_init(void)
	355	{
	356	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
	357	}
	358	module_init(imx_drm_init);
	359
	360	static void __exit imx_drm_exit(void)
	361	{
	362	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
	363	}
	364	module_exit(imx_drm_exit);
e692da4d SH	365
	366	MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
	367	MODULE_DESCRIPTION("i.MX drm driver core");
	368	MODULE_LICENSE("GPL");