[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / msm / hdmi / hdmi.c

/*
 * Copyright (C) 2013 Red Hat
 * Author: Rob Clark <robdclark@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "hdmi.h"

void hdmi_set_mode(struct hdmi *hdmi, bool power_on)
{
	uint32_t ctrl = 0;

	if (power_on) {
		ctrl |= HDMI_CTRL_ENABLE;
		if (!hdmi->hdmi_mode) {
			ctrl |= HDMI_CTRL_HDMI;
			hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
			ctrl &= ~HDMI_CTRL_HDMI;
		} else {
			ctrl |= HDMI_CTRL_HDMI;
		}
	} else {
		ctrl = HDMI_CTRL_HDMI;
	}

	hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
	DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
			power_on ? "Enable" : "Disable", ctrl);
}

irqreturn_t hdmi_irq(int irq, void *dev_id)
{
	struct hdmi *hdmi = dev_id;

	/* Process HPD: */
	hdmi_connector_irq(hdmi->connector);

	/* Process DDC: */
	hdmi_i2c_irq(hdmi->i2c);

	/* TODO audio.. */

	return IRQ_HANDLED;
}

void hdmi_destroy(struct kref *kref)
{
	struct hdmi *hdmi = container_of(kref, struct hdmi, refcount);
	struct hdmi_phy *phy = hdmi->phy;

	if (phy)
		phy->funcs->destroy(phy);

	if (hdmi->i2c)
		hdmi_i2c_destroy(hdmi->i2c);

	platform_set_drvdata(hdmi->pdev, NULL);
}

/* initialize connector */
struct hdmi *hdmi_init(struct drm_device *dev, struct drm_encoder *encoder)
{
	struct hdmi *hdmi = NULL;
	struct msm_drm_private *priv = dev->dev_private;
	struct platform_device *pdev = priv->hdmi_pdev;
	struct hdmi_platform_config *config;
	int i, ret;

	if (!pdev) {
		dev_err(dev->dev, "no hdmi device\n");
		ret = -ENXIO;
		goto fail;
	}

	config = pdev->dev.platform_data;

	hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
	if (!hdmi) {
		ret = -ENOMEM;
		goto fail;
	}

	kref_init(&hdmi->refcount);

	hdmi->dev = dev;
	hdmi->pdev = pdev;
	hdmi->config = config;
	hdmi->encoder = encoder;

	hdmi_audio_infoframe_init(&hdmi->audio.infoframe);

	/* not sure about which phy maps to which msm.. probably I miss some */
	if (config->phy_init)
		hdmi->phy = config->phy_init(hdmi);
	else
		hdmi->phy = ERR_PTR(-ENXIO);

	if (IS_ERR(hdmi->phy)) {
		ret = PTR_ERR(hdmi->phy);
		dev_err(dev->dev, "failed to load phy: %d\n", ret);
		hdmi->phy = NULL;
		goto fail;
	}

	hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI");
	if (IS_ERR(hdmi->mmio)) {
		ret = PTR_ERR(hdmi->mmio);
		goto fail;
	}

	BUG_ON(config->hpd_reg_cnt > ARRAY_SIZE(hdmi->hpd_regs));
	for (i = 0; i < config->hpd_reg_cnt; i++) {
		struct regulator *reg;

		reg = devm_regulator_get(&pdev->dev, config->hpd_reg_names[i]);
		if (IS_ERR(reg)) {
			ret = PTR_ERR(reg);
			dev_err(dev->dev, "failed to get hpd regulator: %s (%d)\n",
					config->hpd_reg_names[i], ret);
			goto fail;
		}

		hdmi->hpd_regs[i] = reg;
	}

	BUG_ON(config->pwr_reg_cnt > ARRAY_SIZE(hdmi->pwr_regs));
	for (i = 0; i < config->pwr_reg_cnt; i++) {
		struct regulator *reg;

		reg = devm_regulator_get(&pdev->dev, config->pwr_reg_names[i]);
		if (IS_ERR(reg)) {
			ret = PTR_ERR(reg);
			dev_err(dev->dev, "failed to get pwr regulator: %s (%d)\n",
					config->pwr_reg_names[i], ret);
			goto fail;
		}

		hdmi->pwr_regs[i] = reg;
	}

	BUG_ON(config->hpd_clk_cnt > ARRAY_SIZE(hdmi->hpd_clks));
	for (i = 0; i < config->hpd_clk_cnt; i++) {
		struct clk *clk;

		clk = devm_clk_get(&pdev->dev, config->hpd_clk_names[i]);
		if (IS_ERR(clk)) {
			ret = PTR_ERR(clk);
			dev_err(dev->dev, "failed to get hpd clk: %s (%d)\n",
					config->hpd_clk_names[i], ret);
			goto fail;
		}

		hdmi->hpd_clks[i] = clk;
	}

	BUG_ON(config->pwr_clk_cnt > ARRAY_SIZE(hdmi->pwr_clks));
	for (i = 0; i < config->pwr_clk_cnt; i++) {
		struct clk *clk;

		clk = devm_clk_get(&pdev->dev, config->pwr_clk_names[i]);
		if (IS_ERR(clk)) {
			ret = PTR_ERR(clk);
			dev_err(dev->dev, "failed to get pwr clk: %s (%d)\n",
					config->pwr_clk_names[i], ret);
			goto fail;
		}

		hdmi->pwr_clks[i] = clk;
	}

	hdmi->i2c = hdmi_i2c_init(hdmi);
	if (IS_ERR(hdmi->i2c)) {
		ret = PTR_ERR(hdmi->i2c);
		dev_err(dev->dev, "failed to get i2c: %d\n", ret);
		hdmi->i2c = NULL;
		goto fail;
	}

	hdmi->bridge = hdmi_bridge_init(hdmi);
	if (IS_ERR(hdmi->bridge)) {
		ret = PTR_ERR(hdmi->bridge);
		dev_err(dev->dev, "failed to create HDMI bridge: %d\n", ret);
		hdmi->bridge = NULL;
		goto fail;
	}

	hdmi->connector = hdmi_connector_init(hdmi);
	if (IS_ERR(hdmi->connector)) {
		ret = PTR_ERR(hdmi->connector);
		dev_err(dev->dev, "failed to create HDMI connector: %d\n", ret);
		hdmi->connector = NULL;
		goto fail;
	}

	if (!config->shared_irq) {
		hdmi->irq = platform_get_irq(pdev, 0);
		if (hdmi->irq < 0) {
			ret = hdmi->irq;
			dev_err(dev->dev, "failed to get irq: %d\n", ret);
			goto fail;
		}

		ret = devm_request_threaded_irq(&pdev->dev, hdmi->irq,
				NULL, hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
				"hdmi_isr", hdmi);
		if (ret < 0) {
			dev_err(dev->dev, "failed to request IRQ%u: %d\n",
					hdmi->irq, ret);
			goto fail;
		}
	}

	encoder->bridge = hdmi->bridge;

	priv->bridges[priv->num_bridges++]       = hdmi->bridge;
	priv->connectors[priv->num_connectors++] = hdmi->connector;

	platform_set_drvdata(pdev, hdmi);

	return hdmi;

fail:
	if (hdmi) {
		/* bridge/connector are normally destroyed by drm: */
		if (hdmi->bridge)
			hdmi->bridge->funcs->destroy(hdmi->bridge);
		if (hdmi->connector)
			hdmi->connector->funcs->destroy(hdmi->connector);
		hdmi_destroy(&hdmi->refcount);
	}

	return ERR_PTR(ret);
}

/*
 * The hdmi device:
 */

#include <linux/of_gpio.h>

static void set_hdmi_pdev(struct drm_device *dev,
		struct platform_device *pdev)
{
	struct msm_drm_private *priv = dev->dev_private;
	priv->hdmi_pdev = pdev;
}

static int hdmi_bind(struct device *dev, struct device *master, void *data)
{
	static struct hdmi_platform_config config = {};
#ifdef CONFIG_OF
	struct device_node *of_node = dev->of_node;

	int get_gpio(const char *name)
	{
		int gpio = of_get_named_gpio(of_node, name, 0);
		if (gpio < 0) {
			dev_err(dev, "failed to get gpio: %s (%d)\n",
					name, gpio);
			gpio = -1;
		}
		return gpio;
	}

	/* TODO actually use DT.. */
	static const char *hpd_reg_names[] = {"hpd-gdsc", "hpd-5v"};
	static const char *pwr_reg_names[] = {"core-vdda", "core-vcc"};
	static const char *hpd_clk_names[] = {"iface_clk", "core_clk", "mdp_core_clk"};
	static unsigned long hpd_clk_freq[] = {0, 19200000, 0};
	static const char *pwr_clk_names[] = {"extp_clk", "alt_iface_clk"};

	config.phy_init      = hdmi_phy_8x74_init;
	config.mmio_name     = "core_physical";
	config.hpd_reg_names = hpd_reg_names;
	config.hpd_reg_cnt   = ARRAY_SIZE(hpd_reg_names);
	config.pwr_reg_names = pwr_reg_names;
	config.pwr_reg_cnt   = ARRAY_SIZE(pwr_reg_names);
	config.hpd_clk_names = hpd_clk_names;
	config.hpd_freq      = hpd_clk_freq;
	config.hpd_clk_cnt   = ARRAY_SIZE(hpd_clk_names);
	config.pwr_clk_names = pwr_clk_names;
	config.pwr_clk_cnt   = ARRAY_SIZE(pwr_clk_names);
	config.ddc_clk_gpio  = get_gpio("qcom,hdmi-tx-ddc-clk");
	config.ddc_data_gpio = get_gpio("qcom,hdmi-tx-ddc-data");
	config.hpd_gpio      = get_gpio("qcom,hdmi-tx-hpd");
	config.mux_en_gpio   = get_gpio("qcom,hdmi-tx-mux-en");
	config.mux_sel_gpio  = get_gpio("qcom,hdmi-tx-mux-sel");
	config.shared_irq    = true;

#else
	static const char *hpd_clk_names[] = {
			"core_clk", "master_iface_clk", "slave_iface_clk",
	};
	if (cpu_is_apq8064()) {
		static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
		config.phy_init      = hdmi_phy_8960_init;
		config.mmio_name     = "hdmi_msm_hdmi_addr";
		config.hpd_reg_names = hpd_reg_names;
		config.hpd_reg_cnt   = ARRAY_SIZE(hpd_reg_names);
		config.hpd_clk_names = hpd_clk_names;
		config.hpd_clk_cnt   = ARRAY_SIZE(hpd_clk_names);
		config.ddc_clk_gpio  = 70;
		config.ddc_data_gpio = 71;
		config.hpd_gpio      = 72;
		config.mux_en_gpio   = -1;
		config.mux_sel_gpio  = -1;
	} else if (cpu_is_msm8960() || cpu_is_msm8960ab()) {
		static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
		config.phy_init      = hdmi_phy_8960_init;
		config.mmio_name     = "hdmi_msm_hdmi_addr";
		config.hpd_reg_names = hpd_reg_names;
		config.hpd_reg_cnt   = ARRAY_SIZE(hpd_reg_names);
		config.hpd_clk_names = hpd_clk_names;
		config.hpd_clk_cnt   = ARRAY_SIZE(hpd_clk_names);
		config.ddc_clk_gpio  = 100;
		config.ddc_data_gpio = 101;
		config.hpd_gpio      = 102;
		config.mux_en_gpio   = -1;
		config.mux_sel_gpio  = -1;
	} else if (cpu_is_msm8x60()) {
		static const char *hpd_reg_names[] = {
				"8901_hdmi_mvs", "8901_mpp0"
		};
		config.phy_init      = hdmi_phy_8x60_init;
		config.mmio_name     = "hdmi_msm_hdmi_addr";
		config.hpd_reg_names = hpd_reg_names;
		config.hpd_reg_cnt   = ARRAY_SIZE(hpd_reg_names);
		config.hpd_clk_names = hpd_clk_names;
		config.hpd_clk_cnt   = ARRAY_SIZE(hpd_clk_names);
		config.ddc_clk_gpio  = 170;
		config.ddc_data_gpio = 171;
		config.hpd_gpio      = 172;
		config.mux_en_gpio   = -1;
		config.mux_sel_gpio  = -1;
	}
#endif
	dev->platform_data = &config;
	set_hdmi_pdev(dev_get_drvdata(master), to_platform_device(dev));
	return 0;
}

static void hdmi_unbind(struct device *dev, struct device *master,
		void *data)
{
	set_hdmi_pdev(dev_get_drvdata(master), NULL);
}

static const struct component_ops hdmi_ops = {
		.bind   = hdmi_bind,
		.unbind = hdmi_unbind,
};

static int hdmi_dev_probe(struct platform_device *pdev)
{
	return component_add(&pdev->dev, &hdmi_ops);
}

static int hdmi_dev_remove(struct platform_device *pdev)
{
	component_del(&pdev->dev, &hdmi_ops);
	return 0;
}

static const struct of_device_id dt_match[] = {
	{ .compatible = "qcom,hdmi-tx" },
	{}
};

static struct platform_driver hdmi_driver = {
	.probe = hdmi_dev_probe,
	.remove = hdmi_dev_remove,
	.driver = {
		.name = "hdmi_msm",
		.of_match_table = dt_match,
	},
};

void __init hdmi_register(void)
{
	platform_driver_register(&hdmi_driver);
}

void __exit hdmi_unregister(void)
{
	platform_driver_unregister(&hdmi_driver);
}
Commit	Line	Data
c8afe684 RC	1	/*
	2	* Copyright (C) 2013 Red Hat
	3	* Author: Rob Clark <robdclark@gmail.com>
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License version 2 as published by
	7	* the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along with
	15	* this program. If not, see <http://www.gnu.org/licenses/>.
	16	*/
	17
	18	#include "hdmi.h"
	19
c8afe684 RC	20	void hdmi_set_mode(struct hdmi *hdmi, bool power_on)
	21	{
	22	uint32_t ctrl = 0;
	23
	24	if (power_on) {
	25	ctrl \|= HDMI_CTRL_ENABLE;
	26	if (!hdmi->hdmi_mode) {
	27	ctrl \|= HDMI_CTRL_HDMI;
	28	hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
	29	ctrl &= ~HDMI_CTRL_HDMI;
	30	} else {
	31	ctrl \|= HDMI_CTRL_HDMI;
	32	}
	33	} else {
	34	ctrl = HDMI_CTRL_HDMI;
	35	}
	36
	37	hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
	38	DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
	39	power_on ? "Enable" : "Disable", ctrl);
	40	}
	41
dada25bd	42	irqreturn_t hdmi_irq(int irq, void *dev_id)
c8afe684 RC	43	{
	44	struct hdmi *hdmi = dev_id;
	45
	46	/* Process HPD: */
	47	hdmi_connector_irq(hdmi->connector);
	48
	49	/* Process DDC: */
	50	hdmi_i2c_irq(hdmi->i2c);
	51
	52	/* TODO audio.. */
	53
	54	return IRQ_HANDLED;
	55	}
	56
a3376e3e	57	void hdmi_destroy(struct kref *kref)
c8afe684	58	{
a3376e3e	59	struct hdmi *hdmi = container_of(kref, struct hdmi, refcount);
c8afe684 RC	60	struct hdmi_phy *phy = hdmi->phy;
	61
	62	if (phy)
	63	phy->funcs->destroy(phy);
	64
	65	if (hdmi->i2c)
	66	hdmi_i2c_destroy(hdmi->i2c);
	67
c0c0d9ee	68	platform_set_drvdata(hdmi->pdev, NULL);
c8afe684 RC	69	}
	70
	71	/* initialize connector */
dada25bd	72	struct hdmi hdmi_init(struct drm_device dev, struct drm_encoder *encoder)
c8afe684	73	{
a3376e3e RC	74	struct hdmi *hdmi = NULL;
a3376e3e RC	75	struct msm_drm_private *priv = dev->dev_private;
060530f1	76	struct platform_device *pdev = priv->hdmi_pdev;
c8afe684	77	struct hdmi_platform_config *config;
dada25bd	78	int i, ret;
c8afe684 RC	79
	80	if (!pdev) {
	81	dev_err(dev->dev, "no hdmi device\n");
	82	ret = -ENXIO;
	83	goto fail;
	84	}
	85
	86	config = pdev->dev.platform_data;
	87
a3376e3e RC	88	hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
	89	if (!hdmi) {
	90	ret = -ENOMEM;
	91	goto fail;
	92	}
	93
	94	kref_init(&hdmi->refcount);
	95
c8afe684 RC	96	hdmi->dev = dev;
c8afe684 RC	97	hdmi->pdev = pdev;
dada25bd	98	hdmi->config = config;
a3376e3e	99	hdmi->encoder = encoder;
c8afe684	100
c0c0d9ee RC	101	hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
c0c0d9ee RC	102
c8afe684 RC	103	/* not sure about which phy maps to which msm.. probably I miss some */
	104	if (config->phy_init)
	105	hdmi->phy = config->phy_init(hdmi);
	106	else
	107	hdmi->phy = ERR_PTR(-ENXIO);
	108
	109	if (IS_ERR(hdmi->phy)) {
	110	ret = PTR_ERR(hdmi->phy);
	111	dev_err(dev->dev, "failed to load phy: %d\n", ret);
	112	hdmi->phy = NULL;
	113	goto fail;
	114	}
	115
dada25bd	116	hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI");
c8afe684 RC	117	if (IS_ERR(hdmi->mmio)) {
	118	ret = PTR_ERR(hdmi->mmio);
	119	goto fail;
	120	}
	121
dada25bd RC	122	BUG_ON(config->hpd_reg_cnt > ARRAY_SIZE(hdmi->hpd_regs));
	123	for (i = 0; i < config->hpd_reg_cnt; i++) {
	124	struct regulator *reg;
	125
	126	reg = devm_regulator_get(&pdev->dev, config->hpd_reg_names[i]);
	127	if (IS_ERR(reg)) {
	128	ret = PTR_ERR(reg);
	129	dev_err(dev->dev, "failed to get hpd regulator: %s (%d)\n",
	130	config->hpd_reg_names[i], ret);
	131	goto fail;
	132	}
	133
	134	hdmi->hpd_regs[i] = reg;
c8afe684 RC	135	}
c8afe684 RC	136
dada25bd RC	137	BUG_ON(config->pwr_reg_cnt > ARRAY_SIZE(hdmi->pwr_regs));
	138	for (i = 0; i < config->pwr_reg_cnt; i++) {
	139	struct regulator *reg;
c8afe684	140
dada25bd RC	141	reg = devm_regulator_get(&pdev->dev, config->pwr_reg_names[i]);
	142	if (IS_ERR(reg)) {
	143	ret = PTR_ERR(reg);
	144	dev_err(dev->dev, "failed to get pwr regulator: %s (%d)\n",
	145	config->pwr_reg_names[i], ret);
	146	goto fail;
	147	}
	148
	149	hdmi->pwr_regs[i] = reg;
c8afe684 RC	150	}
c8afe684 RC	151
dada25bd RC	152	BUG_ON(config->hpd_clk_cnt > ARRAY_SIZE(hdmi->hpd_clks));
	153	for (i = 0; i < config->hpd_clk_cnt; i++) {
	154	struct clk *clk;
	155
	156	clk = devm_clk_get(&pdev->dev, config->hpd_clk_names[i]);
	157	if (IS_ERR(clk)) {
	158	ret = PTR_ERR(clk);
	159	dev_err(dev->dev, "failed to get hpd clk: %s (%d)\n",
	160	config->hpd_clk_names[i], ret);
	161	goto fail;
	162	}
	163
	164	hdmi->hpd_clks[i] = clk;
c8afe684 RC	165	}
c8afe684 RC	166
dada25bd RC	167	BUG_ON(config->pwr_clk_cnt > ARRAY_SIZE(hdmi->pwr_clks));
	168	for (i = 0; i < config->pwr_clk_cnt; i++) {
	169	struct clk *clk;
	170
	171	clk = devm_clk_get(&pdev->dev, config->pwr_clk_names[i]);
	172	if (IS_ERR(clk)) {
	173	ret = PTR_ERR(clk);
	174	dev_err(dev->dev, "failed to get pwr clk: %s (%d)\n",
	175	config->pwr_clk_names[i], ret);
	176	goto fail;
	177	}
	178
	179	hdmi->pwr_clks[i] = clk;
c8afe684 RC	180	}
	181
	182	hdmi->i2c = hdmi_i2c_init(hdmi);
	183	if (IS_ERR(hdmi->i2c)) {
	184	ret = PTR_ERR(hdmi->i2c);
	185	dev_err(dev->dev, "failed to get i2c: %d\n", ret);
	186	hdmi->i2c = NULL;
	187	goto fail;
	188	}
	189
a3376e3e RC	190	hdmi->bridge = hdmi_bridge_init(hdmi);
	191	if (IS_ERR(hdmi->bridge)) {
	192	ret = PTR_ERR(hdmi->bridge);
	193	dev_err(dev->dev, "failed to create HDMI bridge: %d\n", ret);
	194	hdmi->bridge = NULL;
	195	goto fail;
	196	}
	197
	198	hdmi->connector = hdmi_connector_init(hdmi);
	199	if (IS_ERR(hdmi->connector)) {
	200	ret = PTR_ERR(hdmi->connector);
	201	dev_err(dev->dev, "failed to create HDMI connector: %d\n", ret);
	202	hdmi->connector = NULL;
	203	goto fail;
	204	}
	205
dada25bd RC	206	if (!config->shared_irq) {
	207	hdmi->irq = platform_get_irq(pdev, 0);
	208	if (hdmi->irq < 0) {
	209	ret = hdmi->irq;
	210	dev_err(dev->dev, "failed to get irq: %d\n", ret);
	211	goto fail;
	212	}
c8afe684	213
dada25bd RC	214	ret = devm_request_threaded_irq(&pdev->dev, hdmi->irq,
	215	NULL, hdmi_irq, IRQF_TRIGGER_HIGH \| IRQF_ONESHOT,
	216	"hdmi_isr", hdmi);
	217	if (ret < 0) {
	218	dev_err(dev->dev, "failed to request IRQ%u: %d\n",
	219	hdmi->irq, ret);
	220	goto fail;
	221	}
c8afe684 RC	222	}
c8afe684 RC	223
a3376e3e RC	224	encoder->bridge = hdmi->bridge;
	225
	226	priv->bridges[priv->num_bridges++] = hdmi->bridge;
	227	priv->connectors[priv->num_connectors++] = hdmi->connector;
	228
c0c0d9ee RC	229	platform_set_drvdata(pdev, hdmi);
c0c0d9ee RC	230
dada25bd	231	return hdmi;
c8afe684 RC	232
c8afe684 RC	233	fail:
a3376e3e RC	234	if (hdmi) {
	235	/* bridge/connector are normally destroyed by drm: */
	236	if (hdmi->bridge)
	237	hdmi->bridge->funcs->destroy(hdmi->bridge);
	238	if (hdmi->connector)
	239	hdmi->connector->funcs->destroy(hdmi->connector);
	240	hdmi_destroy(&hdmi->refcount);
	241	}
c8afe684	242
dada25bd	243	return ERR_PTR(ret);
c8afe684 RC	244	}
	245
	246	/*
	247	* The hdmi device:
	248	*/
	249
dada25bd RC	250	#include <linux/of_gpio.h>
dada25bd RC	251
060530f1 RC	252	static void set_hdmi_pdev(struct drm_device *dev,
	253	struct platform_device *pdev)
	254	{
	255	struct msm_drm_private *priv = dev->dev_private;
	256	priv->hdmi_pdev = pdev;
	257	}
	258
	259	static int hdmi_bind(struct device dev, struct device master, void *data)
c8afe684 RC	260	{
	261	static struct hdmi_platform_config config = {};
	262	#ifdef CONFIG_OF
060530f1	263	struct device_node *of_node = dev->of_node;
dada25bd RC	264
	265	int get_gpio(const char *name)
	266	{
	267	int gpio = of_get_named_gpio(of_node, name, 0);
	268	if (gpio < 0) {
060530f1	269	dev_err(dev, "failed to get gpio: %s (%d)\n",
dada25bd RC	270	name, gpio);
	271	gpio = -1;
	272	}
	273	return gpio;
	274	}
	275
	276	/* TODO actually use DT.. */
	277	static const char *hpd_reg_names[] = {"hpd-gdsc", "hpd-5v"};
	278	static const char *pwr_reg_names[] = {"core-vdda", "core-vcc"};
	279	static const char *hpd_clk_names[] = {"iface_clk", "core_clk", "mdp_core_clk"};
b77f47e7	280	static unsigned long hpd_clk_freq[] = {0, 19200000, 0};
dada25bd RC	281	static const char *pwr_clk_names[] = {"extp_clk", "alt_iface_clk"};
	282
	283	config.phy_init = hdmi_phy_8x74_init;
	284	config.mmio_name = "core_physical";
	285	config.hpd_reg_names = hpd_reg_names;
	286	config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
	287	config.pwr_reg_names = pwr_reg_names;
	288	config.pwr_reg_cnt = ARRAY_SIZE(pwr_reg_names);
	289	config.hpd_clk_names = hpd_clk_names;
b77f47e7	290	config.hpd_freq = hpd_clk_freq;
dada25bd RC	291	config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
	292	config.pwr_clk_names = pwr_clk_names;
	293	config.pwr_clk_cnt = ARRAY_SIZE(pwr_clk_names);
	294	config.ddc_clk_gpio = get_gpio("qcom,hdmi-tx-ddc-clk");
	295	config.ddc_data_gpio = get_gpio("qcom,hdmi-tx-ddc-data");
	296	config.hpd_gpio = get_gpio("qcom,hdmi-tx-hpd");
	297	config.mux_en_gpio = get_gpio("qcom,hdmi-tx-mux-en");
	298	config.mux_sel_gpio = get_gpio("qcom,hdmi-tx-mux-sel");
	299	config.shared_irq = true;
	300
c8afe684	301	#else
dada25bd RC	302	static const char *hpd_clk_names[] = {
	303	"core_clk", "master_iface_clk", "slave_iface_clk",
	304	};
c8afe684	305	if (cpu_is_apq8064()) {
dada25bd	306	static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
c8afe684	307	config.phy_init = hdmi_phy_8960_init;
dada25bd RC	308	config.mmio_name = "hdmi_msm_hdmi_addr";
	309	config.hpd_reg_names = hpd_reg_names;
	310	config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
	311	config.hpd_clk_names = hpd_clk_names;
	312	config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
c8afe684 RC	313	config.ddc_clk_gpio = 70;
	314	config.ddc_data_gpio = 71;
	315	config.hpd_gpio = 72;
dada25bd	316	config.mux_en_gpio = -1;
c0c0d9ee	317	config.mux_sel_gpio = -1;
e529c7e6	318	} else if (cpu_is_msm8960() \|\| cpu_is_msm8960ab()) {
dada25bd	319	static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
c8afe684	320	config.phy_init = hdmi_phy_8960_init;
dada25bd RC	321	config.mmio_name = "hdmi_msm_hdmi_addr";
	322	config.hpd_reg_names = hpd_reg_names;
	323	config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
	324	config.hpd_clk_names = hpd_clk_names;
	325	config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
c8afe684 RC	326	config.ddc_clk_gpio = 100;
	327	config.ddc_data_gpio = 101;
	328	config.hpd_gpio = 102;
dada25bd RC	329	config.mux_en_gpio = -1;
dada25bd RC	330	config.mux_sel_gpio = -1;
c8afe684	331	} else if (cpu_is_msm8x60()) {
dada25bd RC	332	static const char *hpd_reg_names[] = {
	333	"8901_hdmi_mvs", "8901_mpp0"
	334	};
c8afe684	335	config.phy_init = hdmi_phy_8x60_init;
dada25bd RC	336	config.mmio_name = "hdmi_msm_hdmi_addr";
	337	config.hpd_reg_names = hpd_reg_names;
	338	config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
	339	config.hpd_clk_names = hpd_clk_names;
	340	config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
c8afe684 RC	341	config.ddc_clk_gpio = 170;
	342	config.ddc_data_gpio = 171;
	343	config.hpd_gpio = 172;
dada25bd RC	344	config.mux_en_gpio = -1;
dada25bd RC	345	config.mux_sel_gpio = -1;
c8afe684 RC	346	}
c8afe684 RC	347	#endif
060530f1 RC	348	dev->platform_data = &config;
060530f1 RC	349	set_hdmi_pdev(dev_get_drvdata(master), to_platform_device(dev));
c8afe684 RC	350	return 0;
	351	}
	352
060530f1 RC	353	static void hdmi_unbind(struct device dev, struct device master,
	354	void *data)
	355	{
	356	set_hdmi_pdev(dev_get_drvdata(master), NULL);
	357	}
	358
	359	static const struct component_ops hdmi_ops = {
	360	.bind = hdmi_bind,
	361	.unbind = hdmi_unbind,
	362	};
	363
	364	static int hdmi_dev_probe(struct platform_device *pdev)
	365	{
	366	return component_add(&pdev->dev, &hdmi_ops);
	367	}
	368
c8afe684 RC	369	static int hdmi_dev_remove(struct platform_device *pdev)
c8afe684 RC	370	{
060530f1	371	component_del(&pdev->dev, &hdmi_ops);
c8afe684 RC	372	return 0;
	373	}
	374
dada25bd RC	375	static const struct of_device_id dt_match[] = {
	376	{ .compatible = "qcom,hdmi-tx" },
	377	{}
	378	};
dada25bd	379
c8afe684 RC	380	static struct platform_driver hdmi_driver = {
	381	.probe = hdmi_dev_probe,
	382	.remove = hdmi_dev_remove,
dada25bd RC	383	.driver = {
	384	.name = "hdmi_msm",
	385	.of_match_table = dt_match,
	386	},
c8afe684 RC	387	};
	388
	389	void __init hdmi_register(void)
	390	{
	391	platform_driver_register(&hdmi_driver);
	392	}
	393
	394	void __exit hdmi_unregister(void)
	395	{
	396	platform_driver_unregister(&hdmi_driver);
	397	}