[linux-2.6-block.git] / drivers / gpu / drm / meson / meson_drv.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2016 BayLibre, SAS
 * Author: Neil Armstrong <narmstrong@baylibre.com>
 * Copyright (C) 2014 Endless Mobile
 *
 * Written by:
 *     Jasper St. Pierre <jstpierre@mecheye.net>
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/component.h>
#include <linux/of_graph.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_flip_work.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_rect.h>

#include "meson_drv.h"
#include "meson_plane.h"
#include "meson_overlay.h"
#include "meson_crtc.h"
#include "meson_venc_cvbs.h"

#include "meson_vpp.h"
#include "meson_viu.h"
#include "meson_venc.h"
#include "meson_registers.h"

#define DRIVER_NAME "meson"
#define DRIVER_DESC "Amlogic Meson DRM driver"

/**
 * DOC: Video Processing Unit
 *
 * VPU Handles the Global Video Processing, it includes management of the
 * clocks gates, blocks reset lines and power domains.
 *
 * What is missing :
 *
 * - Full reset of entire video processing HW blocks
 * - Scaling and setup of the VPU clock
 * - Bus clock gates
 * - Powering up video processing HW blocks
 * - Powering Up HDMI controller and PHY
 */

static const struct drm_mode_config_funcs meson_mode_config_funcs = {
	.atomic_check        = drm_atomic_helper_check,
	.atomic_commit       = drm_atomic_helper_commit,
	.fb_create           = drm_gem_fb_create,
};

static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
};

static irqreturn_t meson_irq(int irq, void *arg)
{
	struct drm_device *dev = arg;
	struct meson_drm *priv = dev->dev_private;

	(void)readl_relaxed(priv->io_base + _REG(VENC_INTFLAG));

	meson_crtc_irq(priv);

	return IRQ_HANDLED;
}

static int meson_dumb_create(struct drm_file *file, struct drm_device *dev,
			     struct drm_mode_create_dumb *args)
{
	/*
	 * We need 64bytes aligned stride, and PAGE aligned size
	 */
	args->pitch = ALIGN(DIV_ROUND_UP(args->width * args->bpp, 8), SZ_64);
	args->size = PAGE_ALIGN(args->pitch * args->height);

	return drm_gem_cma_dumb_create_internal(file, dev, args);
}

DEFINE_DRM_GEM_CMA_FOPS(fops);

static struct drm_driver meson_driver = {
	.driver_features	= DRIVER_GEM |
				  DRIVER_MODESET | DRIVER_PRIME |
				  DRIVER_ATOMIC,

	/* IRQ */
	.irq_handler		= meson_irq,

	/* PRIME 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,

	/* GEM Ops */
	.dumb_create		= meson_dumb_create,
	.gem_free_object_unlocked = drm_gem_cma_free_object,
	.gem_vm_ops		= &drm_gem_cma_vm_ops,

	/* Misc */
	.fops			= &fops,
	.name			= DRIVER_NAME,
	.desc			= DRIVER_DESC,
	.date			= "20161109",
	.major			= 1,
	.minor			= 0,
};

static bool meson_vpu_has_available_connectors(struct device *dev)
{
	struct device_node *ep, *remote;

	/* Parses each endpoint and check if remote exists */
	for_each_endpoint_of_node(dev->of_node, ep) {
		/* If the endpoint node exists, consider it enabled */
		remote = of_graph_get_remote_port(ep);
		if (remote)
			return true;
	}

	return false;
}

static struct regmap_config meson_regmap_config = {
	.reg_bits       = 32,
	.val_bits       = 32,
	.reg_stride     = 4,
	.max_register   = 0x1000,
};

static void meson_vpu_init(struct meson_drm *priv)
{
	writel_relaxed(0x210000, priv->io_base + _REG(VPU_RDARB_MODE_L1C1));
	writel_relaxed(0x10000, priv->io_base + _REG(VPU_RDARB_MODE_L1C2));
	writel_relaxed(0x900000, priv->io_base + _REG(VPU_RDARB_MODE_L2C1));
	writel_relaxed(0x20000, priv->io_base + _REG(VPU_WRARB_MODE_L2C1));
}

static void meson_remove_framebuffers(void)
{
	struct apertures_struct *ap;

	ap = alloc_apertures(1);
	if (!ap)
		return;

	/* The framebuffer can be located anywhere in RAM */
	ap->ranges[0].base = 0;
	ap->ranges[0].size = ~0;

	drm_fb_helper_remove_conflicting_framebuffers(ap, "meson-drm-fb",
						      false);
	kfree(ap);
}

static int meson_drv_bind_master(struct device *dev, bool has_components)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct meson_drm *priv;
	struct drm_device *drm;
	struct resource *res;
	void __iomem *regs;
	int ret;

	/* Checks if an output connector is available */
	if (!meson_vpu_has_available_connectors(dev)) {
		dev_err(dev, "No output connector available\n");
		return -ENODEV;
	}

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

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv) {
		ret = -ENOMEM;
		goto free_drm;
	}
	drm->dev_private = priv;
	priv->drm = drm;
	priv->dev = dev;

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpu");
	regs = devm_ioremap_resource(dev, res);
	if (IS_ERR(regs)) {
		ret = PTR_ERR(regs);
		goto free_drm;
	}

	priv->io_base = regs;

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
	if (!res) {
		ret = -EINVAL;
		goto free_drm;
	}
	/* Simply ioremap since it may be a shared register zone */
	regs = devm_ioremap(dev, res->start, resource_size(res));
	if (!regs) {
		ret = -EADDRNOTAVAIL;
		goto free_drm;
	}

	priv->hhi = devm_regmap_init_mmio(dev, regs,
					  &meson_regmap_config);
	if (IS_ERR(priv->hhi)) {
		dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
		ret = PTR_ERR(priv->hhi);
		goto free_drm;
	}

	priv->canvas = meson_canvas_get(dev);
	if (IS_ERR(priv->canvas)) {
		ret = PTR_ERR(priv->canvas);
		goto free_drm;
	}

	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
	if (ret)
		goto free_drm;
	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
	if (ret) {
		meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
		goto free_drm;
	}
	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_1);
	if (ret) {
		meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
		meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
		goto free_drm;
	}
	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_2);
	if (ret) {
		meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
		meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
		meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
		goto free_drm;
	}

	priv->vsync_irq = platform_get_irq(pdev, 0);

	ret = drm_vblank_init(drm, 1);
	if (ret)
		goto free_drm;

	/* Remove early framebuffers (ie. simplefb) */
	meson_remove_framebuffers();

	drm_mode_config_init(drm);
	drm->mode_config.max_width = 3840;
	drm->mode_config.max_height = 2160;
	drm->mode_config.funcs = &meson_mode_config_funcs;
	drm->mode_config.helper_private	= &meson_mode_config_helpers;

	/* Hardware Initialization */

	meson_vpu_init(priv);
	meson_venc_init(priv);
	meson_vpp_init(priv);
	meson_viu_init(priv);

	/* Encoder Initialization */

	ret = meson_venc_cvbs_create(priv);
	if (ret)
		goto free_drm;

	if (has_components) {
		ret = component_bind_all(drm->dev, drm);
		if (ret) {
			dev_err(drm->dev, "Couldn't bind all components\n");
			goto free_drm;
		}
	}

	ret = meson_plane_create(priv);
	if (ret)
		goto free_drm;

	ret = meson_overlay_create(priv);
	if (ret)
		goto free_drm;

	ret = meson_crtc_create(priv);
	if (ret)
		goto free_drm;

	ret = drm_irq_install(drm, priv->vsync_irq);
	if (ret)
		goto free_drm;

	drm_mode_config_reset(drm);

	drm_kms_helper_poll_init(drm);

	platform_set_drvdata(pdev, priv);

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

	drm_fbdev_generic_setup(drm, 32);

	return 0;

uninstall_irq:
	drm_irq_uninstall(drm);
free_drm:
	drm_dev_put(drm);

	return ret;
}

static int meson_drv_bind(struct device *dev)
{
	return meson_drv_bind_master(dev, true);
}

static void meson_drv_unbind(struct device *dev)
{
	struct meson_drm *priv = dev_get_drvdata(dev);
	struct drm_device *drm = priv->drm;

	if (priv->canvas) {
		meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
		meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
		meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
		meson_canvas_free(priv->canvas, priv->canvas_id_vd1_2);
	}

	drm_dev_unregister(drm);
	drm_irq_uninstall(drm);
	drm_kms_helper_poll_fini(drm);
	drm_mode_config_cleanup(drm);
	drm_dev_put(drm);

}

static const struct component_master_ops meson_drv_master_ops = {
	.bind	= meson_drv_bind,
	.unbind	= meson_drv_unbind,
};

static int compare_of(struct device *dev, void *data)
{
	DRM_DEBUG_DRIVER("Comparing of node %pOF with %pOF\n",
			 dev->of_node, data);

	return dev->of_node == data;
}

/* Possible connectors nodes to ignore */
static const struct of_device_id connectors_match[] = {
	{ .compatible = "composite-video-connector" },
	{ .compatible = "svideo-connector" },
	{ .compatible = "hdmi-connector" },
	{ .compatible = "dvi-connector" },
	{}
};

static int meson_probe_remote(struct platform_device *pdev,
			      struct component_match **match,
			      struct device_node *parent,
			      struct device_node *remote)
{
	struct device_node *ep, *remote_node;
	int count = 1;

	/* If node is a connector, return and do not add to match table */
	if (of_match_node(connectors_match, remote))
		return 1;

	component_match_add(&pdev->dev, match, compare_of, remote);

	for_each_endpoint_of_node(remote, ep) {
		remote_node = of_graph_get_remote_port_parent(ep);
		if (!remote_node ||
		    remote_node == parent || /* Ignore parent endpoint */
		    !of_device_is_available(remote_node)) {
			of_node_put(remote_node);
			continue;
		}

		count += meson_probe_remote(pdev, match, remote, remote_node);

		of_node_put(remote_node);
	}

	return count;
}

static int meson_drv_probe(struct platform_device *pdev)
{
	struct component_match *match = NULL;
	struct device_node *np = pdev->dev.of_node;
	struct device_node *ep, *remote;
	int count = 0;

	for_each_endpoint_of_node(np, ep) {
		remote = of_graph_get_remote_port_parent(ep);
		if (!remote || !of_device_is_available(remote)) {
			of_node_put(remote);
			continue;
		}

		count += meson_probe_remote(pdev, &match, np, remote);
		of_node_put(remote);
	}

	if (count && !match)
		return meson_drv_bind_master(&pdev->dev, false);

	/* If some endpoints were found, initialize the nodes */
	if (count) {
		dev_info(&pdev->dev, "Queued %d outputs on vpu\n", count);

		return component_master_add_with_match(&pdev->dev,
						       &meson_drv_master_ops,
						       match);
	}

	/* If no output endpoints were available, simply bail out */
	return 0;
};

static const struct of_device_id dt_match[] = {
	{ .compatible = "amlogic,meson-gxbb-vpu" },
	{ .compatible = "amlogic,meson-gxl-vpu" },
	{ .compatible = "amlogic,meson-gxm-vpu" },
	{ .compatible = "amlogic,meson-g12a-vpu" },
	{}
};
MODULE_DEVICE_TABLE(of, dt_match);

static struct platform_driver meson_drm_platform_driver = {
	.probe      = meson_drv_probe,
	.driver     = {
		.name	= "meson-drm",
		.of_match_table = dt_match,
	},
};

module_platform_driver(meson_drm_platform_driver);

MODULE_AUTHOR("Jasper St. Pierre <jstpierre@mecheye.net>");
MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
Commit	Line	Data
1ccea77e	1	// SPDX-License-Identifier: GPL-2.0-or-later
bbbe775e NA	2	/*
	3	* Copyright (C) 2016 BayLibre, SAS
	4	* Author: Neil Armstrong <narmstrong@baylibre.com>
	5	* Copyright (C) 2014 Endless Mobile
	6	*
bbbe775e NA	7	* Written by:
	8	* Jasper St. Pierre <jstpierre@mecheye.net>
	9	*/
	10
	11	#include <linux/kernel.h>
	12	#include <linux/module.h>
	13	#include <linux/mutex.h>
	14	#include <linux/platform_device.h>
a41e82e6	15	#include <linux/component.h>
bbbe775e NA	16	#include <linux/of_graph.h>
	17
	18	#include <drm/drmP.h>
	19	#include <drm/drm_atomic.h>
	20	#include <drm/drm_atomic_helper.h>
fcd70cd3 DV	21	#include <drm/drm_fb_cma_helper.h>
fcd70cd3 DV	22	#include <drm/drm_fb_helper.h>
bbbe775e	23	#include <drm/drm_flip_work.h>
bbbe775e	24	#include <drm/drm_gem_cma_helper.h>
24ef8157	25	#include <drm/drm_gem_framebuffer_helper.h>
fcd70cd3 DV	26	#include <drm/drm_plane_helper.h>
fcd70cd3 DV	27	#include <drm/drm_probe_helper.h>
bbbe775e	28	#include <drm/drm_rect.h>
bbbe775e NA	29
	30	#include "meson_drv.h"
	31	#include "meson_plane.h"
f9a23481	32	#include "meson_overlay.h"
bbbe775e NA	33	#include "meson_crtc.h"
	34	#include "meson_venc_cvbs.h"
	35
	36	#include "meson_vpp.h"
	37	#include "meson_viu.h"
	38	#include "meson_venc.h"
bbbe775e NA	39	#include "meson_registers.h"
	40
	41	#define DRIVER_NAME "meson"
	42	#define DRIVER_DESC "Amlogic Meson DRM driver"
	43
2021d5b7 NA	44	/**
2021d5b7 NA	45	* DOC: Video Processing Unit
bbbe775e NA	46	*
	47	* VPU Handles the Global Video Processing, it includes management of the
	48	* clocks gates, blocks reset lines and power domains.
	49	*
	50	* What is missing :
2021d5b7	51	*
bbbe775e NA	52	* - Full reset of entire video processing HW blocks
	53	* - Scaling and setup of the VPU clock
	54	* - Bus clock gates
	55	* - Powering up video processing HW blocks
	56	* - Powering Up HDMI controller and PHY
	57	*/
	58
bbbe775e	59	static const struct drm_mode_config_funcs meson_mode_config_funcs = {
bbbe775e NA	60	.atomic_check = drm_atomic_helper_check,
bbbe775e NA	61	.atomic_commit = drm_atomic_helper_commit,
24ef8157	62	.fb_create = drm_gem_fb_create,
bbbe775e NA	63	};
bbbe775e NA	64
ce0210c1 NA	65	static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
	66	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
	67	};
	68
bbbe775e NA	69	static irqreturn_t meson_irq(int irq, void *arg)
	70	{
	71	struct drm_device *dev = arg;
	72	struct meson_drm *priv = dev->dev_private;
	73
	74	(void)readl_relaxed(priv->io_base + _REG(VENC_INTFLAG));
	75
	76	meson_crtc_irq(priv);
	77
	78	return IRQ_HANDLED;
	79	}
	80
852ce728 NA	81	static int meson_dumb_create(struct drm_file file, struct drm_device dev,
	82	struct drm_mode_create_dumb *args)
	83	{
	84	/*
	85	* We need 64bytes aligned stride, and PAGE aligned size
	86	*/
	87	args->pitch = ALIGN(DIV_ROUND_UP(args->width * args->bpp, 8), SZ_64);
	88	args->size = PAGE_ALIGN(args->pitch * args->height);
	89
	90	return drm_gem_cma_dumb_create_internal(file, dev, args);
	91	}
	92
d55f7e5d	93	DEFINE_DRM_GEM_CMA_FOPS(fops);
bbbe775e NA	94
bbbe775e NA	95	static struct drm_driver meson_driver = {
5b38e747	96	.driver_features = DRIVER_GEM \|
bbbe775e NA	97	DRIVER_MODESET \| DRIVER_PRIME \|
	98	DRIVER_ATOMIC,
	99
bbbe775e NA	100	/* IRQ */
	101	.irq_handler = meson_irq,
	102
	103	/* PRIME Ops */
	104	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
	105	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
	106	.gem_prime_import = drm_gem_prime_import,
	107	.gem_prime_export = drm_gem_prime_export,
	108	.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
	109	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
	110	.gem_prime_vmap = drm_gem_cma_prime_vmap,
	111	.gem_prime_vunmap = drm_gem_cma_prime_vunmap,
	112	.gem_prime_mmap = drm_gem_cma_prime_mmap,
	113
	114	/* GEM Ops */
852ce728	115	.dumb_create = meson_dumb_create,
bbbe775e NA	116	.gem_free_object_unlocked = drm_gem_cma_free_object,
	117	.gem_vm_ops = &drm_gem_cma_vm_ops,
	118
	119	/* Misc */
	120	.fops = &fops,
	121	.name = DRIVER_NAME,
	122	.desc = DRIVER_DESC,
	123	.date = "20161109",
	124	.major = 1,
	125	.minor = 0,
	126	};
	127
	128	static bool meson_vpu_has_available_connectors(struct device *dev)
	129	{
	130	struct device_node ep, remote;
	131
	132	/* Parses each endpoint and check if remote exists */
	133	for_each_endpoint_of_node(dev->of_node, ep) {
	134	/* If the endpoint node exists, consider it enabled */
	135	remote = of_graph_get_remote_port(ep);
	136	if (remote)
	137	return true;
	138	}
	139
	140	return false;
	141	}
	142
	143	static struct regmap_config meson_regmap_config = {
	144	.reg_bits = 32,
	145	.val_bits = 32,
	146	.reg_stride = 4,
	147	.max_register = 0x1000,
	148	};
	149
09762525 NA	150	static void meson_vpu_init(struct meson_drm *priv)
	151	{
	152	writel_relaxed(0x210000, priv->io_base + _REG(VPU_RDARB_MODE_L1C1));
	153	writel_relaxed(0x10000, priv->io_base + _REG(VPU_RDARB_MODE_L1C2));
	154	writel_relaxed(0x900000, priv->io_base + _REG(VPU_RDARB_MODE_L2C1));
	155	writel_relaxed(0x20000, priv->io_base + _REG(VPU_WRARB_MODE_L2C1));
	156	}
	157
e3de0aa6 MJ	158	static void meson_remove_framebuffers(void)
	159	{
	160	struct apertures_struct *ap;
	161
	162	ap = alloc_apertures(1);
	163	if (!ap)
	164	return;
	165
	166	/* The framebuffer can be located anywhere in RAM */
	167	ap->ranges[0].base = 0;
	168	ap->ranges[0].size = ~0;
	169
	170	drm_fb_helper_remove_conflicting_framebuffers(ap, "meson-drm-fb",
	171	false);
	172	kfree(ap);
	173	}
	174
8604889f	175	static int meson_drv_bind_master(struct device *dev, bool has_components)
bbbe775e	176	{
a41e82e6	177	struct platform_device *pdev = to_platform_device(dev);
bbbe775e NA	178	struct meson_drm *priv;
	179	struct drm_device *drm;
	180	struct resource *res;
	181	void __iomem *regs;
	182	int ret;
	183
	184	/* Checks if an output connector is available */
	185	if (!meson_vpu_has_available_connectors(dev)) {
	186	dev_err(dev, "No output connector available\n");
	187	return -ENODEV;
	188	}
	189
	190	drm = drm_dev_alloc(&meson_driver, dev);
	191	if (IS_ERR(drm))
	192	return PTR_ERR(drm);
	193
	194	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	195	if (!priv) {
	196	ret = -ENOMEM;
	197	goto free_drm;
	198	}
	199	drm->dev_private = priv;
	200	priv->drm = drm;
	201	priv->dev = dev;
	202
	203	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpu");
	204	regs = devm_ioremap_resource(dev, res);
2c18107b CJ	205	if (IS_ERR(regs)) {
	206	ret = PTR_ERR(regs);
	207	goto free_drm;
	208	}
bbbe775e NA	209
	210	priv->io_base = regs;
	211
	212	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
01a9e949 CJ	213	if (!res) {
	214	ret = -EINVAL;
	215	goto free_drm;
	216	}
bbbe775e NA	217	/* Simply ioremap since it may be a shared register zone */
bbbe775e NA	218	regs = devm_ioremap(dev, res->start, resource_size(res));
2c18107b CJ	219	if (!regs) {
	220	ret = -EADDRNOTAVAIL;
	221	goto free_drm;
	222	}
bbbe775e NA	223
	224	priv->hhi = devm_regmap_init_mmio(dev, regs,
	225	&meson_regmap_config);
	226	if (IS_ERR(priv->hhi)) {
	227	dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
2c18107b CJ	228	ret = PTR_ERR(priv->hhi);
2c18107b CJ	229	goto free_drm;
bbbe775e NA	230	}
bbbe775e NA	231
66cae477	232	priv->canvas = meson_canvas_get(dev);
2bf6b5b0 MJ	233	if (IS_ERR(priv->canvas)) {
	234	ret = PTR_ERR(priv->canvas);
	235	goto free_drm;
	236	}
	237
	238	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
	239	if (ret)
	240	goto free_drm;
	241	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
	242	if (ret) {
	243	meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
	244	goto free_drm;
	245	}
	246	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_1);
	247	if (ret) {
	248	meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
	249	meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
	250	goto free_drm;
	251	}
	252	ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_2);
	253	if (ret) {
	254	meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
	255	meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
	256	meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
	257	goto free_drm;
bbbe775e NA	258	}
	259
	260	priv->vsync_irq = platform_get_irq(pdev, 0);
	261
e770f6bf CJ	262	ret = drm_vblank_init(drm, 1);
	263	if (ret)
	264	goto free_drm;
	265
e3de0aa6 MJ	266	/* Remove early framebuffers (ie. simplefb) */
	267	meson_remove_framebuffers();
	268
bbbe775e	269	drm_mode_config_init(drm);
a41e82e6 NA	270	drm->mode_config.max_width = 3840;
	271	drm->mode_config.max_height = 2160;
	272	drm->mode_config.funcs = &meson_mode_config_funcs;
ce0210c1	273	drm->mode_config.helper_private = &meson_mode_config_helpers;
a41e82e6 NA	274
	275	/* Hardware Initialization */
	276
09762525	277	meson_vpu_init(priv);
a41e82e6 NA	278	meson_venc_init(priv);
	279	meson_vpp_init(priv);
	280	meson_viu_init(priv);
bbbe775e NA	281
	282	/* Encoder Initialization */
	283
	284	ret = meson_venc_cvbs_create(priv);
	285	if (ret)
	286	goto free_drm;
	287
8604889f NA	288	if (has_components) {
	289	ret = component_bind_all(drm->dev, drm);
	290	if (ret) {
	291	dev_err(drm->dev, "Couldn't bind all components\n");
	292	goto free_drm;
	293	}
a41e82e6	294	}
bbbe775e NA	295
	296	ret = meson_plane_create(priv);
	297	if (ret)
	298	goto free_drm;
	299
f9a23481 NA	300	ret = meson_overlay_create(priv);
	301	if (ret)
	302	goto free_drm;
	303
bbbe775e NA	304	ret = meson_crtc_create(priv);
	305	if (ret)
	306	goto free_drm;
	307
	308	ret = drm_irq_install(drm, priv->vsync_irq);
	309	if (ret)
	310	goto free_drm;
	311
	312	drm_mode_config_reset(drm);
bbbe775e	313
bbbe775e NA	314	drm_kms_helper_poll_init(drm);
	315
	316	platform_set_drvdata(pdev, priv);
	317
	318	ret = drm_dev_register(drm, 0);
	319	if (ret)
2d8f9289	320	goto uninstall_irq;
bbbe775e	321
efbb9df9 NT	322	drm_fbdev_generic_setup(drm, 32);
efbb9df9 NT	323
bbbe775e NA	324	return 0;
bbbe775e NA	325
2d8f9289 JPB	326	uninstall_irq:
2d8f9289 JPB	327	drm_irq_uninstall(drm);
bbbe775e	328	free_drm:
dcacf651	329	drm_dev_put(drm);
bbbe775e NA	330
	331	return ret;
	332	}
	333
8604889f NA	334	static int meson_drv_bind(struct device *dev)
	335	{
	336	return meson_drv_bind_master(dev, true);
	337	}
	338
a41e82e6	339	static void meson_drv_unbind(struct device *dev)
bbbe775e	340	{
776e7867 JPB	341	struct meson_drm *priv = dev_get_drvdata(dev);
776e7867 JPB	342	struct drm_device *drm = priv->drm;
66cae477	343
f9a23481	344	if (priv->canvas) {
66cae477	345	meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
f9a23481 NA	346	meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
	347	meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
	348	meson_canvas_free(priv->canvas, priv->canvas_id_vd1_2);
	349	}
bbbe775e NA	350
bbbe775e NA	351	drm_dev_unregister(drm);
2d8f9289	352	drm_irq_uninstall(drm);
bbbe775e	353	drm_kms_helper_poll_fini(drm);
bbbe775e	354	drm_mode_config_cleanup(drm);
dcacf651	355	drm_dev_put(drm);
bbbe775e	356
bbbe775e NA	357	}
bbbe775e NA	358
a41e82e6 NA	359	static const struct component_master_ops meson_drv_master_ops = {
	360	.bind = meson_drv_bind,
	361	.unbind = meson_drv_unbind,
	362	};
	363
	364	static int compare_of(struct device dev, void data)
	365	{
4bf99144 RH	366	DRM_DEBUG_DRIVER("Comparing of node %pOF with %pOF\n",
4bf99144 RH	367	dev->of_node, data);
a41e82e6 NA	368
	369	return dev->of_node == data;
	370	}
	371
	372	/* Possible connectors nodes to ignore */
	373	static const struct of_device_id connectors_match[] = {
	374	{ .compatible = "composite-video-connector" },
	375	{ .compatible = "svideo-connector" },
	376	{ .compatible = "hdmi-connector" },
	377	{ .compatible = "dvi-connector" },
	378	{}
	379	};
	380
	381	static int meson_probe_remote(struct platform_device *pdev,
	382	struct component_match **match,
	383	struct device_node *parent,
	384	struct device_node *remote)
	385	{
	386	struct device_node ep, remote_node;
	387	int count = 1;
	388
	389	/* If node is a connector, return and do not add to match table */
	390	if (of_match_node(connectors_match, remote))
	391	return 1;
	392
	393	component_match_add(&pdev->dev, match, compare_of, remote);
	394
	395	for_each_endpoint_of_node(remote, ep) {
	396	remote_node = of_graph_get_remote_port_parent(ep);
	397	if (!remote_node \|\|
	398	remote_node == parent \|\| /* Ignore parent endpoint */
f672b93e JL	399	!of_device_is_available(remote_node)) {
f672b93e JL	400	of_node_put(remote_node);
a41e82e6	401	continue;
f672b93e	402	}
a41e82e6 NA	403
	404	count += meson_probe_remote(pdev, match, remote, remote_node);
	405
	406	of_node_put(remote_node);
	407	}
	408
	409	return count;
	410	}
	411
	412	static int meson_drv_probe(struct platform_device *pdev)
	413	{
	414	struct component_match *match = NULL;
	415	struct device_node *np = pdev->dev.of_node;
	416	struct device_node ep, remote;
	417	int count = 0;
	418
	419	for_each_endpoint_of_node(np, ep) {
	420	remote = of_graph_get_remote_port_parent(ep);
f672b93e JL	421	if (!remote \|\| !of_device_is_available(remote)) {
f672b93e JL	422	of_node_put(remote);
a41e82e6	423	continue;
f672b93e	424	}
a41e82e6 NA	425
a41e82e6 NA	426	count += meson_probe_remote(pdev, &match, np, remote);
f672b93e	427	of_node_put(remote);
a41e82e6 NA	428	}
a41e82e6 NA	429
8604889f NA	430	if (count && !match)
	431	return meson_drv_bind_master(&pdev->dev, false);
	432
a41e82e6 NA	433	/* If some endpoints were found, initialize the nodes */
	434	if (count) {
	435	dev_info(&pdev->dev, "Queued %d outputs on vpu\n", count);
	436
	437	return component_master_add_with_match(&pdev->dev,
	438	&meson_drv_master_ops,
	439	match);
	440	}
	441
	442	/* If no output endpoints were available, simply bail out */
	443	return 0;
	444	};
	445
bbbe775e NA	446	static const struct of_device_id dt_match[] = {
	447	{ .compatible = "amlogic,meson-gxbb-vpu" },
	448	{ .compatible = "amlogic,meson-gxl-vpu" },
	449	{ .compatible = "amlogic,meson-gxm-vpu" },
4deb190a	450	{ .compatible = "amlogic,meson-g12a-vpu" },
bbbe775e NA	451	{}
	452	};
	453	MODULE_DEVICE_TABLE(of, dt_match);
	454
	455	static struct platform_driver meson_drm_platform_driver = {
	456	.probe = meson_drv_probe,
bbbe775e	457	.driver = {
8aaacbc0	458	.name = "meson-drm",
bbbe775e NA	459	.of_match_table = dt_match,
	460	},
	461	};
	462
	463	module_platform_driver(meson_drm_platform_driver);
	464
	465	MODULE_AUTHOR("Jasper St. Pierre <jstpierre@mecheye.net>");
	466	MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
	467	MODULE_DESCRIPTION(DRIVER_DESC);
	468	MODULE_LICENSE("GPL");