drivers/gpu/drm/msm/hdmi/hdmi.c - arm/linux-arm64-legacy - Git at Google

 /*
  * 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 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_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);
 }
	/*
	* 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 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_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);
	}