Release 4.8 drivers/gpu/drm/imx/imx-drm-core.c

/*
 * Freescale i.MX drm driver
 *
 * Copyright (C) 2011 Sascha Hauer, Pengutronix
 *
 * 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.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
#include <linux/component.h>
#include <linux/device.h>
#include <linux/dma-buf.h>
#include <linux/fb.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/reservation.h>
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_of.h>
#include <video/imx-ipu-v3.h>

#include "imx-drm.h"


#define MAX_CRTC	4


struct imx_drm_component {
	
struct device_node *of_node;
	
struct list_head list;
};


struct imx_drm_device {
	
struct drm_device			*drm;
	
struct imx_drm_crtc			*crtc[MAX_CRTC];
	
unsigned int				pipes;
	
struct drm_fbdev_cma			*fbhelper;
	
struct drm_atomic_state			*state;
};


struct imx_drm_crtc {
	
struct drm_crtc				*crtc;
	
struct imx_drm_crtc_helper_funcs	imx_drm_helper_funcs;
};

#if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION)

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



unsigned int imx_drm_crtc_id(struct imx_drm_crtc *crtc)
{
	return drm_crtc_index(crtc->crtc);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
philipp zabel
philipp zabel
14
73.68%
1
33.33%
thierry reding
thierry reding
5
26.32%
2
66.67%
Total
19
100.00%
3
100.00%


EXPORT_SYMBOL_GPL(imx_drm_crtc_id);



static void imx_drm_driver_lastclose(struct drm_device *drm)
{
	struct imx_drm_device *imxdrm = drm->dev_private;

	drm_fbdev_cma_restore_mode(imxdrm->fbhelper);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
27
100.00%
1
100.00%
Total
27
100.00%
1
100.00%



static int imx_drm_driver_unload(struct drm_device *drm)
{
	struct imx_drm_device *imxdrm = drm->dev_private;

	drm_kms_helper_poll_fini(drm);

	if (imxdrm->fbhelper)
		drm_fbdev_cma_fini(imxdrm->fbhelper);

	component_unbind_all(drm->dev, drm);

	drm_vblank_cleanup(drm);
	drm_mode_config_cleanup(drm);

	platform_set_drvdata(drm->platformdev, NULL);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
33
47.83%
4
66.67%
sascha hauer
sascha hauer
27
39.13%
1
16.67%
shawn guo
shawn guo
9
13.04%
1
16.67%
Total
69
100.00%
6
100.00%



int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc)
{
	return drm_crtc_vblank_get(imx_drm_crtc->crtc);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
16
88.89%
1
33.33%
russell king
russell king
1
5.56%
1
33.33%
thierry reding
thierry reding
1
5.56%
1
33.33%
Total
18
100.00%
3
100.00%


EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get);



void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc)
{
	drm_crtc_vblank_put(imx_drm_crtc->crtc);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
15
88.24%
1
33.33%
thierry reding
thierry reding
1
5.88%
1
33.33%
russell king
russell king
1
5.88%
1
33.33%
Total
17
100.00%
3
100.00%


EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put);



void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc)
{
	drm_crtc_handle_vblank(imx_drm_crtc->crtc);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
15
88.24%
1
33.33%
russell king
russell king
1
5.88%
1
33.33%
thierry reding
thierry reding
1
5.88%
1
33.33%
Total
17
100.00%
3
100.00%


EXPORT_SYMBOL_GPL(imx_drm_handle_vblank);



static int imx_drm_enable_vblank(struct drm_device *drm, unsigned int pipe)
{
	struct imx_drm_device *imxdrm = drm->dev_private;
	struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe];
	int ret;

	if (!imx_drm_crtc)
		return -EINVAL;

	if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank)
		return -ENOSYS;

	ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank(
			imx_drm_crtc->crtc);

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
68
88.31%
1
33.33%
russell king
russell king
6
7.79%
1
33.33%
thierry reding
thierry reding
3
3.90%
1
33.33%
Total
77
100.00%
3
100.00%



static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe)
{
	struct imx_drm_device *imxdrm = drm->dev_private;
	struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe];

	if (!imx_drm_crtc)
		return;

	if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank)
		return;

	imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
55
87.30%
1
33.33%
russell king
russell king
5
7.94%
1
33.33%
thierry reding
thierry reding
3
4.76%
1
33.33%
Total
63
100.00%
3
100.00%


static const struct file_operations imx_drm_driver_fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	.mmap = drm_gem_cma_mmap,
	.poll = drm_poll,
	.read = drm_read,
	.llseek = noop_llseek,
};



void imx_drm_connector_destroy(struct drm_connector *connector)
{
	drm_connector_unregister(connector);
	drm_connector_cleanup(connector);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
11
55.00%
1
33.33%
russell king
russell king
8
40.00%
1
33.33%
thomas wood
thomas wood
1
5.00%
1
33.33%
Total
20
100.00%
3
100.00%


EXPORT_SYMBOL_GPL(imx_drm_connector_destroy);



void imx_drm_encoder_destroy(struct drm_encoder *encoder)
{
	drm_encoder_cleanup(encoder);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
12
80.00%
1
50.00%
sascha hauer
sascha hauer
3
20.00%
1
50.00%
Total
15
100.00%
2
100.00%


EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy);



static void imx_drm_output_poll_changed(struct drm_device *drm)
{
	struct imx_drm_device *imxdrm = drm->dev_private;

	drm_fbdev_cma_hotplug_event(imxdrm->fbhelper);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
27
100.00%
1
100.00%
Total
27
100.00%
1
100.00%



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;

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
liu ying
liu ying
71
100.00%
1
100.00%
Total
71
100.00%
1
100.00%


static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
	.fb_create = drm_fb_cma_create,
	.output_poll_changed = imx_drm_output_poll_changed,
	.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_crtc *crtc;
	struct drm_crtc_state *crtc_state;
	struct drm_plane_state *plane_state;
	struct drm_gem_cma_object *cma_obj;
	struct fence *excl;
	unsigned shared_count;
	struct fence **shared;
	unsigned int i, j;
	int ret;

	/* Wait for fences. */
	for_each_crtc_in_state(state, crtc, crtc_state, i) {
		plane_state = crtc->primary->state;
		if (plane_state->fb) {
			cma_obj = drm_fb_cma_get_gem_obj(plane_state->fb, 0);
			if (cma_obj->base.dma_buf) {
				ret = reservation_object_get_fences_rcu(
					cma_obj->base.dma_buf->resv, &excl,
					&shared_count, &shared);
				if (unlikely(ret))
					DRM_ERROR("failed to get fences "
						  "for buffer\n");

				if (excl) {
					fence_wait(excl, false);
					fence_put(excl);
				}
				for (j = 0; j < shared_count; i++) {
					fence_wait(shared[j], false);
					fence_put(shared[j]);
				}
			}
		}
	}

	drm_atomic_helper_commit_modeset_disables(dev, state);

	drm_atomic_helper_commit_planes(dev, state, true);

	drm_atomic_helper_commit_modeset_enables(dev, state);

	drm_atomic_helper_commit_hw_done(state);

	drm_atomic_helper_wait_for_vblanks(dev, state);

	drm_atomic_helper_cleanup_planes(dev, state);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
liu ying
liu ying
241
100.00%
1
100.00%
Total
241
100.00%
1
100.00%


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

/*
 * Main DRM initialisation. This binds, initialises and registers
 * with DRM the subcomponents of the driver.
 */


static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags)
{
	struct imx_drm_device *imxdrm;
	struct drm_connector *connector;
	int ret;

	imxdrm = devm_kzalloc(drm->dev, sizeof(*imxdrm), GFP_KERNEL);
	if (!imxdrm)
		return -ENOMEM;

	imxdrm->drm = drm;

	drm->dev_private = imxdrm;

	/*
         * 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 = 64;
	drm->mode_config.min_height = 64;
	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_init(drm);

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

	platform_set_drvdata(drm->platformdev, drm);

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

	/*
         * All components are now added, we can publish the connector sysfs
         * entries to userspace.  This will generate hotplug events and so
         * userspace will expect to be able to access DRM at this point.
         */
	list_for_each_entry(connector, &drm->mode_config.connector_list, head) {
		ret = drm_connector_register(connector);
		if (ret) {
			dev_err(drm->dev,
				"[CONNECTOR:%d:%s] drm_connector_register failed: %d\n",
				connector->base.id,
				connector->name, ret);
			goto err_unbind;
		}
	}

	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 IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION)
	if (legacyfb_depth != 16 && legacyfb_depth != 32) {
		dev_warn(drm->dev, "Invalid legacyfb_depth.  Defaulting to 16bpp\n");
		legacyfb_depth = 16;
	}
	imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth,
				drm->mode_config.num_crtc, MAX_CRTC);
	if (IS_ERR(imxdrm->fbhelper)) {
		ret = PTR_ERR(imxdrm->fbhelper);
		imxdrm->fbhelper = NULL;
		goto err_unbind;
	}
#endif

	drm_kms_helper_poll_init(drm);

	return 0;

err_unbind:
	component_unbind_all(drm->dev, drm);
err_vblank:
	drm_vblank_cleanup(drm);
err_kms:
	drm_mode_config_cleanup(drm);

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
244
70.93%
8
57.14%
sascha hauer
sascha hauer
81
23.55%
1
7.14%
liu ying
liu ying
14
4.07%
2
14.29%
jani nikula
jani nikula
2
0.58%
1
7.14%
thomas wood
thomas wood
2
0.58%
1
7.14%
archit taneja
archit taneja
1
0.29%
1
7.14%
Total
344
100.00%
14
100.00%

/*
 * imx_drm_add_crtc - add a new crtc
 */


int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
		struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane,
		const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs,
		struct device_node *port)
{
	struct imx_drm_device *imxdrm = drm->dev_private;
	struct imx_drm_crtc *imx_drm_crtc;

	/*
         * The vblank arrays are dimensioned by MAX_CRTC - we can't
         * pass IDs greater than this to those functions.
         */
	if (imxdrm->pipes >= MAX_CRTC)
		return -EINVAL;

	if (imxdrm->drm->open_count)
		return -EBUSY;

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

	imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs;
	imx_drm_crtc->crtc = crtc;

	crtc->port = port;

	imxdrm->crtc[imxdrm->pipes++] = imx_drm_crtc;

	*new_crtc = imx_drm_crtc;

	drm_crtc_helper_add(crtc,
			imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs);

	drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL,
			imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs, NULL);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
90
53.89%
3
37.50%
sascha hauer
sascha hauer
59
35.33%
1
12.50%
philipp zabel
philipp zabel
13
7.78%
2
25.00%
thierry reding
thierry reding
3
1.80%
1
12.50%
ville syrjala
ville syrjala
2
1.20%
1
12.50%
Total
167
100.00%
8
100.00%


EXPORT_SYMBOL_GPL(imx_drm_add_crtc);

/*
 * imx_drm_remove_crtc - remove a crtc
 */


int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc)
{
	struct imx_drm_device *imxdrm = imx_drm_crtc->crtc->dev->dev_private;
	unsigned int pipe = drm_crtc_index(imx_drm_crtc->crtc);

	drm_crtc_cleanup(imx_drm_crtc->crtc);

	imxdrm->crtc[pipe] = NULL;

	kfree(imx_drm_crtc);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
25
43.10%
1
25.00%
russell king
russell king
22
37.93%
2
50.00%
thierry reding
thierry reding
11
18.97%
1
25.00%
Total
58
100.00%
4
100.00%


EXPORT_SYMBOL_GPL(imx_drm_remove_crtc);



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;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
42
72.41%
2
50.00%
philipp zabel
philipp zabel
12
20.69%
1
25.00%
sascha hauer
sascha hauer
4
6.90%
1
25.00%
Total
58
100.00%
4
100.00%


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,
	.load			= imx_drm_driver_load,
	.unload			= imx_drm_driver_unload,
	.lastclose		= imx_drm_driver_lastclose,
	.gem_free_object_unlocked = drm_gem_cma_free_object,
	.gem_vm_ops		= &drm_gem_cma_vm_ops,
	.dumb_create		= drm_gem_cma_dumb_create,
	.dumb_map_offset	= drm_gem_cma_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_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,
	.get_vblank_counter	= drm_vblank_no_hw_counter,
	.enable_vblank		= imx_drm_enable_vblank,
	.disable_vblank		= imx_drm_disable_vblank,
	.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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
philipp zabel
philipp zabel
62
68.13%
2
66.67%
russell king
russell king
29
31.87%
1
33.33%
Total
91
100.00%
3
100.00%



static int imx_drm_bind(struct device *dev)
{
	return drm_platform_init(&imx_drm_driver, to_platform_device(dev));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
23
100.00%
1
100.00%
Total
23
100.00%
1
100.00%



static void imx_drm_unbind(struct device *dev)
{
	drm_put_dev(dev_get_drvdata(dev));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%


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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
russell king
russell king
22
44.00%
2
33.33%
sascha hauer
sascha hauer
11
22.00%
1
16.67%
philipp zabel
philipp zabel
8
16.00%
1
16.67%
liviu dudau
liviu dudau
5
10.00%
1
16.67%
shawn guo
shawn guo
4
8.00%
1
16.67%
Total
50
100.00%
6
100.00%



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

Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
17
68.00%
1
33.33%
russell king
russell king
7
28.00%
1
33.33%
daniel vetter
daniel vetter
1
4.00%
1
33.33%
Total
25
100.00%
3
100.00%

#ifdef CONFIG_PM_SLEEP


static int imx_drm_suspend(struct device *dev)
{
	struct drm_device *drm_dev = dev_get_drvdata(dev);
	struct imx_drm_device *imxdrm;

	/* The drm_dev is NULL before .load hook is called */
	if (drm_dev == NULL)
		return 0;

	drm_kms_helper_poll_disable(drm_dev);

	imxdrm = drm_dev->dev_private;
	imxdrm->state = drm_atomic_helper_suspend(drm_dev);
	if (IS_ERR(imxdrm->state)) {
		drm_kms_helper_poll_enable(drm_dev);
		return PTR_ERR(imxdrm->state);
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
liu ying
liu ying
44
53.01%
1
50.00%
shawn guo
shawn guo
39
46.99%
1
50.00%
Total
83
100.00%
2
100.00%



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

	if (drm_dev == NULL)
		return 0;

	imx_drm = drm_dev->dev_private;
	drm_atomic_helper_resume(drm_dev, imx_drm->state);
	drm_kms_helper_poll_enable(drm_dev);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
shawn guo
shawn guo
42
72.41%
1
50.00%
liu ying
liu ying
16
27.59%
1
50.00%
Total
58
100.00%
2
100.00%

#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,
        },
};

module_platform_driver(imx_drm_pdrv);

MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("i.MX drm driver core");
MODULE_LICENSE("GPL");
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
sascha hauer
sascha hauer
725
32.48%
1
2.27%
russell king
russell king
706
31.63%
16
36.36%
liu ying
liu ying
427
19.13%
4
9.09%
philipp zabel
philipp zabel
192
8.60%
5
11.36%
shawn guo
shawn guo
115
5.15%
2
4.55%
thierry reding
thierry reding
29
1.30%
3
6.82%
archit taneja
archit taneja
9
0.40%
1
2.27%
daniel vetter
daniel vetter
6
0.27%
4
9.09%
josh boyer
josh boyer
5
0.22%
1
2.27%
liviu dudau
liviu dudau
5
0.22%
1
2.27%
ville syrjala
ville syrjala
4
0.18%
3
6.82%
fabio estevam
fabio estevam
4
0.18%
1
2.27%
thomas wood
thomas wood
3
0.13%
1
2.27%
jani nikula
jani nikula
2
0.09%
1
2.27%
Total
2232
100.00%
44
100.00%
  
Directory: drivers/gpu/drm/imx

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.