OMAPDSS: HDMI: remove code related to old panel model

Now that the old panel drivers have been removed, we can remove the
old-model API and related code from the DSS encoder drivers.

This patch removes the code from the HDMI driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>

4 files changed, 44 insertions, 696 deletions

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 61949ff7940c..e022ed103804 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -10,6 +10,5 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o venc_panel.o
 omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
-omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o \
-				    hdmi_panel.o ti_hdmi_4xxx_ip.o
+omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o ti_hdmi_4xxx_ip.o
 ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 146349f6ae91..6142885751e0 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -452,26 +452,6 @@ void venc_panel_exit(void);
 /* HDMI */
 int hdmi_init_platform_driver(void) __init;
 void hdmi_uninit_platform_driver(void) __exit;
-int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev);
-void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev);
-int omapdss_hdmi_core_enable(struct omap_dss_device *dssdev);
-void omapdss_hdmi_core_disable(struct omap_dss_device *dssdev);
-void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev,
-		struct omap_video_timings *timings);
-int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
-					struct omap_video_timings *timings);
-int omapdss_hdmi_read_edid(u8 *buf, int len);
-bool omapdss_hdmi_detect(void);
-int hdmi_panel_init(void);
-void hdmi_panel_exit(void);
-#ifdef CONFIG_OMAP4_DSS_HDMI_AUDIO
-int hdmi_audio_enable(void);
-void hdmi_audio_disable(void);
-int hdmi_audio_start(void);
-void hdmi_audio_stop(void);
-bool hdmi_mode_has_audio(void);
-int hdmi_audio_config(struct omap_dss_audio *audio);
-#endif
 
 /* RFBI */
 int rfbi_init_platform_driver(void) __init;
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 44a885b92825..0b8e4dec2c0e 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -66,10 +66,6 @@ static struct {
 	struct clk *sys_clk;
 	struct regulator *vdda_hdmi_dac_reg;
 
-	int ct_cp_hpd_gpio;
-	int ls_oe_gpio;
-	int hpd_gpio;
-
 	bool core_enabled;
 
 	struct omap_dss_device output;
@@ -353,40 +349,6 @@ static int hdmi_init_regulator(void)
 	return 0;
 }
 
-static int hdmi_init_display(struct omap_dss_device *dssdev)
-{
-	int r;
-
-	struct gpio gpios[] = {
-		{ hdmi.ct_cp_hpd_gpio, GPIOF_OUT_INIT_LOW, "hdmi_ct_cp_hpd" },
-		{ hdmi.ls_oe_gpio, GPIOF_OUT_INIT_LOW, "hdmi_ls_oe" },
-		{ hdmi.hpd_gpio, GPIOF_DIR_IN, "hdmi_hpd" },
-	};
-
-	DSSDBG("init_display\n");
-
-	dss_init_hdmi_ip_ops(&hdmi.ip_data, omapdss_get_version());
-
-	r = hdmi_init_regulator();
-	if (r)
-		return r;
-
-	r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
-	if (r)
-		return r;
-
-	return 0;
-}
-
-static void hdmi_uninit_display(struct omap_dss_device *dssdev)
-{
-	DSSDBG("uninit_display\n");
-
-	gpio_free(hdmi.ct_cp_hpd_gpio);
-	gpio_free(hdmi.ls_oe_gpio);
-	gpio_free(hdmi.hpd_gpio);
-}
-
 static const struct hdmi_config *hdmi_find_timing(
 					const struct hdmi_config *timings_arr,
 					int len)
@@ -517,17 +479,9 @@ static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 {
 	int r;
 
-	if (gpio_is_valid(hdmi.ct_cp_hpd_gpio))
-		gpio_set_value(hdmi.ct_cp_hpd_gpio, 1);
-	if (gpio_is_valid(hdmi.ls_oe_gpio))
-		gpio_set_value(hdmi.ls_oe_gpio, 1);
-
-	/* wait 300us after CT_CP_HPD for the 5V power output to reach 90% */
-	udelay(300);
-
 	r = regulator_enable(hdmi.vdda_hdmi_dac_reg);
 	if (r)
-		goto err_vdac_enable;
+		return r;
 
 	r = hdmi_runtime_get();
 	if (r)
@@ -542,11 +496,7 @@ static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 
 err_runtime_get:
 	regulator_disable(hdmi.vdda_hdmi_dac_reg);
-err_vdac_enable:
-	if (gpio_is_valid(hdmi.ct_cp_hpd_gpio))
-		gpio_set_value(hdmi.ct_cp_hpd_gpio, 0);
-	if (gpio_is_valid(hdmi.ls_oe_gpio))
-		gpio_set_value(hdmi.ls_oe_gpio, 0);
+
 	return r;
 }
 
@@ -556,10 +506,6 @@ static void hdmi_power_off_core(struct omap_dss_device *dssdev)
 
 	hdmi_runtime_put();
 	regulator_disable(hdmi.vdda_hdmi_dac_reg);
-	if (gpio_is_valid(hdmi.ct_cp_hpd_gpio))
-		gpio_set_value(hdmi.ct_cp_hpd_gpio, 0);
-	if (gpio_is_valid(hdmi.ls_oe_gpio))
-		gpio_set_value(hdmi.ls_oe_gpio, 0);
 }
 
 static int hdmi_power_on_full(struct omap_dss_device *dssdev)
@@ -640,7 +586,7 @@ static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 	hdmi_power_off_core(dssdev);
 }
 
-int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
+static int hdmi_display_check_timing(struct omap_dss_device *dssdev,
 					struct omap_video_timings *timings)
 {
 	struct hdmi_cm cm;
@@ -654,7 +600,7 @@ int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
 
 }
 
-void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev,
+static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
 	struct hdmi_cm cm;
@@ -674,7 +620,7 @@ void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev,
 	mutex_unlock(&hdmi.lock);
 }
 
-static void omapdss_hdmi_display_get_timings(struct omap_dss_device *dssdev,
+static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
 	const struct hdmi_config *cfg;
@@ -704,7 +650,7 @@ static void hdmi_dump_regs(struct seq_file *s)
 	mutex_unlock(&hdmi.lock);
 }
 
-int omapdss_hdmi_read_edid(u8 *buf, int len)
+static int read_edid(u8 *buf, int len)
 {
 	int r;
 
@@ -721,24 +667,7 @@ int omapdss_hdmi_read_edid(u8 *buf, int len)
 	return r;
 }
 
-bool omapdss_hdmi_detect(void)
-{
-	int r;
-
-	mutex_lock(&hdmi.lock);
-
-	r = hdmi_runtime_get();
-	BUG_ON(r);
-
-	r = gpio_get_value(hdmi.hpd_gpio);
-
-	hdmi_runtime_put();
-	mutex_unlock(&hdmi.lock);
-
-	return r == 1;
-}
-
-int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev)
+static int hdmi_display_enable(struct omap_dss_device *dssdev)
 {
 	struct omap_dss_device *out = &hdmi.output;
 	int r = 0;
@@ -767,7 +696,7 @@ err0:
 	return r;
 }
 
-void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
+static void hdmi_display_disable(struct omap_dss_device *dssdev)
 {
 	DSSDBG("Enter hdmi_display_disable\n");
 
@@ -778,7 +707,7 @@ void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&hdmi.lock);
 }
 
-int omapdss_hdmi_core_enable(struct omap_dss_device *dssdev)
+static int hdmi_core_enable(struct omap_dss_device *dssdev)
 {
 	int r = 0;
 
@@ -800,7 +729,7 @@ err0:
 	return r;
 }
 
-void omapdss_hdmi_core_disable(struct omap_dss_device *dssdev)
+static void hdmi_core_disable(struct omap_dss_device *dssdev)
 {
 	DSSDBG("Enter omapdss_hdmi_core_disable\n");
 
@@ -927,35 +856,7 @@ int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
 	return 0;
 }
 
-int hdmi_audio_enable(void)
-{
-	DSSDBG("audio_enable\n");
-
-	return hdmi.ip_data.ops->audio_enable(&hdmi.ip_data);
-}
-
-void hdmi_audio_disable(void)
-{
-	DSSDBG("audio_disable\n");
-
-	hdmi.ip_data.ops->audio_disable(&hdmi.ip_data);
-}
-
-int hdmi_audio_start(void)
-{
-	DSSDBG("audio_start\n");
-
-	return hdmi.ip_data.ops->audio_start(&hdmi.ip_data);
-}
-
-void hdmi_audio_stop(void)
-{
-	DSSDBG("audio_stop\n");
-
-	hdmi.ip_data.ops->audio_stop(&hdmi.ip_data);
-}
-
-bool hdmi_mode_has_audio(void)
+static bool hdmi_mode_has_audio(void)
 {
 	if (hdmi.ip_data.cfg.cm.mode == HDMI_HDMI)
 		return true;
@@ -963,92 +864,8 @@ bool hdmi_mode_has_audio(void)
 		return false;
 }
 
-int hdmi_audio_config(struct omap_dss_audio *audio)
-{
-	return hdmi.ip_data.ops->audio_config(&hdmi.ip_data, audio);
-}
-
 #endif
 
-static struct omap_dss_device *hdmi_find_dssdev(struct platform_device *pdev)
-{
-	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
-	const char *def_disp_name = omapdss_get_default_display_name();
-	struct omap_dss_device *def_dssdev;
-	int i;
-
-	def_dssdev = NULL;
-
-	for (i = 0; i < pdata->num_devices; ++i) {
-		struct omap_dss_device *dssdev = pdata->devices[i];
-
-		if (dssdev->type != OMAP_DISPLAY_TYPE_HDMI)
-			continue;
-
-		if (def_dssdev == NULL)
-			def_dssdev = dssdev;
-
-		if (def_disp_name != NULL &&
-				strcmp(dssdev->name, def_disp_name) == 0) {
-			def_dssdev = dssdev;
-			break;
-		}
-	}
-
-	return def_dssdev;
-}
-
-static int hdmi_probe_pdata(struct platform_device *pdev)
-{
-	struct omap_dss_device *plat_dssdev;
-	struct omap_dss_device *dssdev;
-	struct omap_dss_hdmi_data *priv;
-	int r;
-
-	plat_dssdev = hdmi_find_dssdev(pdev);
-
-	if (!plat_dssdev)
-		return 0;
-
-	dssdev = dss_alloc_and_init_device(&pdev->dev);
-	if (!dssdev)
-		return -ENOMEM;
-
-	dss_copy_device_pdata(dssdev, plat_dssdev);
-
-	priv = dssdev->data;
-
-	hdmi.ct_cp_hpd_gpio = priv->ct_cp_hpd_gpio;
-	hdmi.ls_oe_gpio = priv->ls_oe_gpio;
-	hdmi.hpd_gpio = priv->hpd_gpio;
-
-	r = hdmi_init_display(dssdev);
-	if (r) {
-		DSSERR("device %s init failed: %d\n", dssdev->name, r);
-		dss_put_device(dssdev);
-		return r;
-	}
-
-	r = omapdss_output_set_device(&hdmi.output, dssdev);
-	if (r) {
-		DSSERR("failed to connect output to new device: %s\n",
-				dssdev->name);
-		dss_put_device(dssdev);
-		return r;
-	}
-
-	r = dss_add_device(dssdev);
-	if (r) {
-		DSSERR("device %s register failed: %d\n", dssdev->name, r);
-		omapdss_output_unset_device(&hdmi.output);
-		hdmi_uninit_display(dssdev);
-		dss_put_device(dssdev);
-		return r;
-	}
-
-	return 0;
-}
-
 static int hdmi_connect(struct omap_dss_device *dssdev,
 		struct omap_dss_device *dst)
 {
@@ -1103,21 +920,21 @@ static int hdmi_read_edid(struct omap_dss_device *dssdev,
 	need_enable = hdmi.core_enabled == false;
 
 	if (need_enable) {
-		r = omapdss_hdmi_core_enable(dssdev);
+		r = hdmi_core_enable(dssdev);
 		if (r)
 			return r;
 	}
 
-	r = omapdss_hdmi_read_edid(edid, len);
+	r = read_edid(edid, len);
 
 	if (need_enable)
-		omapdss_hdmi_core_disable(dssdev);
+		hdmi_core_disable(dssdev);
 
 	return r;
 }
 
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-static int omapdss_hdmi_audio_enable(struct omap_dss_device *dssdev)
+static int hdmi_audio_enable(struct omap_dss_device *dssdev)
 {
 	int r;
 
@@ -1128,7 +945,8 @@ static int omapdss_hdmi_audio_enable(struct omap_dss_device *dssdev)
 		goto err;
 	}
 
-	r = hdmi_audio_enable();
+
+	r = hdmi.ip_data.ops->audio_enable(&hdmi.ip_data);
 	if (r)
 		goto err;
 
@@ -1140,22 +958,22 @@ err:
 	return r;
 }
 
-static void omapdss_hdmi_audio_disable(struct omap_dss_device *dssdev)
+static void hdmi_audio_disable(struct omap_dss_device *dssdev)
 {
-	hdmi_audio_disable();
+	hdmi.ip_data.ops->audio_disable(&hdmi.ip_data);
 }
 
-static int omapdss_hdmi_audio_start(struct omap_dss_device *dssdev)
+static int hdmi_audio_start(struct omap_dss_device *dssdev)
 {
-	return hdmi_audio_start();
+	return hdmi.ip_data.ops->audio_start(&hdmi.ip_data);
 }
 
-static void omapdss_hdmi_audio_stop(struct omap_dss_device *dssdev)
+static void hdmi_audio_stop(struct omap_dss_device *dssdev)
 {
-	hdmi_audio_stop();
+	hdmi.ip_data.ops->audio_stop(&hdmi.ip_data);
 }
 
-static bool omapdss_hdmi_audio_supported(struct omap_dss_device *dssdev)
+static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
 {
 	bool r;
 
@@ -1167,7 +985,7 @@ static bool omapdss_hdmi_audio_supported(struct omap_dss_device *dssdev)
 	return r;
 }
 
-static int omapdss_hdmi_audio_config(struct omap_dss_device *dssdev,
+static int hdmi_audio_config(struct omap_dss_device *dssdev,
 		struct omap_dss_audio *audio)
 {
 	int r;
@@ -1179,7 +997,7 @@ static int omapdss_hdmi_audio_config(struct omap_dss_device *dssdev,
 		goto err;
 	}
 
-	r = hdmi_audio_config(audio);
+	r = hdmi.ip_data.ops->audio_config(&hdmi.ip_data, audio);
 	if (r)
 		goto err;
 
@@ -1191,30 +1009,30 @@ err:
 	return r;
 }
 #else
-static int omapdss_hdmi_audio_enable(struct omap_dss_device *dssdev)
+static int hdmi_audio_enable(struct omap_dss_device *dssdev)
 {
 	return -EPERM;
 }
 
-static void omapdss_hdmi_audio_disable(struct omap_dss_device *dssdev)
+static void hdmi_audio_disable(struct omap_dss_device *dssdev)
 {
 }
 
-static int omapdss_hdmi_audio_start(struct omap_dss_device *dssdev)
+static int hdmi_audio_start(struct omap_dss_device *dssdev)
 {
 	return -EPERM;
 }
 
-static void omapdss_hdmi_audio_stop(struct omap_dss_device *dssdev)
+static void hdmi_audio_stop(struct omap_dss_device *dssdev)
 {
 }
 
-static bool omapdss_hdmi_audio_supported(struct omap_dss_device *dssdev)
+static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
 {
 	return false;
 }
 
-static int omapdss_hdmi_audio_config(struct omap_dss_device *dssdev,
+static int hdmi_audio_config(struct omap_dss_device *dssdev,
 		struct omap_dss_audio *audio)
 {
 	return -EPERM;
@@ -1225,21 +1043,21 @@ static const struct omapdss_hdmi_ops hdmi_ops = {
 	.connect		= hdmi_connect,
 	.disconnect		= hdmi_disconnect,
 
-	.enable			= omapdss_hdmi_display_enable,
-	.disable		= omapdss_hdmi_display_disable,
+	.enable			= hdmi_display_enable,
+	.disable		= hdmi_display_disable,
 
-	.check_timings		= omapdss_hdmi_display_check_timing,
-	.set_timings		= omapdss_hdmi_display_set_timing,
-	.get_timings		= omapdss_hdmi_display_get_timings,
+	.check_timings		= hdmi_display_check_timing,
+	.set_timings		= hdmi_display_set_timing,
+	.get_timings		= hdmi_display_get_timings,
 
 	.read_edid		= hdmi_read_edid,
 
-	.audio_enable		= omapdss_hdmi_audio_enable,
-	.audio_disable		= omapdss_hdmi_audio_disable,
-	.audio_start		= omapdss_hdmi_audio_start,
-	.audio_stop		= omapdss_hdmi_audio_stop,
-	.audio_supported	= omapdss_hdmi_audio_supported,
-	.audio_config		= omapdss_hdmi_audio_config,
+	.audio_enable		= hdmi_audio_enable,
+	.audio_disable		= hdmi_audio_disable,
+	.audio_start		= hdmi_audio_start,
+	.audio_stop		= hdmi_audio_stop,
+	.audio_supported	= hdmi_audio_supported,
+	.audio_config		= hdmi_audio_config,
 };
 
 static void hdmi_init_output(struct platform_device *pdev)
@@ -1301,50 +1119,15 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 	hdmi.ip_data.pll_offset = HDMI_PLLCTRL;
 	hdmi.ip_data.phy_offset = HDMI_PHY;
 
-	hdmi.ct_cp_hpd_gpio = -1;
-	hdmi.ls_oe_gpio = -1;
-	hdmi.hpd_gpio = -1;
-
 	hdmi_init_output(pdev);
 
-	r = hdmi_panel_init();
-	if (r) {
-		DSSERR("can't init panel\n");
-		return r;
-	}
-
 	dss_debugfs_create_file("hdmi", hdmi_dump_regs);
 
-	if (pdev->dev.platform_data) {
-		r = hdmi_probe_pdata(pdev);
-		if (r)
-			goto err_probe;
-	}
-
-	return 0;
-
-err_probe:
-	hdmi_panel_exit();
-	hdmi_uninit_output(pdev);
-	pm_runtime_disable(&pdev->dev);
-	return r;
-}
-
-static int __exit hdmi_remove_child(struct device *dev, void *data)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	hdmi_uninit_display(dssdev);
 	return 0;
 }
 
 static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
 {
-	device_for_each_child(&pdev->dev, NULL, hdmi_remove_child);
-
-	dss_unregister_child_devices(&pdev->dev);
-
-	hdmi_panel_exit();
-
 	hdmi_uninit_output(pdev);
 
 	pm_runtime_disable(&pdev->dev);
diff --git a/drivers/video/omap2/dss/hdmi_panel.c b/drivers/video/omap2/dss/hdmi_panel.c
deleted file mode 100644
index dfb8eda81b61..000000000000
--- a/drivers/video/omap2/dss/hdmi_panel.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * hdmi_panel.c
- *
- * HDMI library support functions for TI OMAP4 processors.
- *
- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
- * Authors:	Mythri P k <mythripk@ti.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 <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/mutex.h>
-#include <linux/module.h>
-#include <video/omapdss.h>
-#include <linux/slab.h>
-
-#include "dss.h"
-
-static struct {
-	/* This protects the panel ops, mainly when accessing the HDMI IP. */
-	struct mutex lock;
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	/* This protects the audio ops, specifically. */
-	spinlock_t audio_lock;
-#endif
-} hdmi;
-
-
-static int hdmi_panel_probe(struct omap_dss_device *dssdev)
-{
-	/* Initialize default timings to VGA in DVI mode */
-	const struct omap_video_timings default_timings = {
-		.x_res		= 640,
-		.y_res		= 480,
-		.pixel_clock	= 25175,
-		.hsw		= 96,
-		.hfp		= 16,
-		.hbp		= 48,
-		.vsw		= 2,
-		.vfp		= 11,
-		.vbp		= 31,
-
-		.vsync_level	= OMAPDSS_SIG_ACTIVE_LOW,
-		.hsync_level	= OMAPDSS_SIG_ACTIVE_LOW,
-
-		.interlace	= false,
-	};
-
-	DSSDBG("ENTER hdmi_panel_probe\n");
-
-	dssdev->panel.timings = default_timings;
-
-	DSSDBG("hdmi_panel_probe x_res= %d y_res = %d\n",
-		dssdev->panel.timings.x_res,
-		dssdev->panel.timings.y_res);
-
-	omapdss_hdmi_display_set_timing(dssdev, &dssdev->panel.timings);
-
-	return 0;
-}
-
-static void hdmi_panel_remove(struct omap_dss_device *dssdev)
-{
-
-}
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-static int hdmi_panel_audio_enable(struct omap_dss_device *dssdev)
-{
-	unsigned long flags;
-	int r;
-
-	mutex_lock(&hdmi.lock);
-	spin_lock_irqsave(&hdmi.audio_lock, flags);
-
-	/* enable audio only if the display is active and supports audio */
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE ||
-	    !hdmi_mode_has_audio()) {
-		DSSERR("audio not supported or display is off\n");
-		r = -EPERM;
-		goto err;
-	}
-
-	r = hdmi_audio_enable();
-
-	if (!r)
-		dssdev->audio_state = OMAP_DSS_AUDIO_ENABLED;
-
-err:
-	spin_unlock_irqrestore(&hdmi.audio_lock, flags);
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-static void hdmi_panel_audio_disable(struct omap_dss_device *dssdev)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&hdmi.audio_lock, flags);
-
-	hdmi_audio_disable();
-
-	dssdev->audio_state = OMAP_DSS_AUDIO_DISABLED;
-
-	spin_unlock_irqrestore(&hdmi.audio_lock, flags);
-}
-
-static int hdmi_panel_audio_start(struct omap_dss_device *dssdev)
-{
-	unsigned long flags;
-	int r;
-
-	spin_lock_irqsave(&hdmi.audio_lock, flags);
-	/*
-	 * No need to check the panel state. It was checked when trasitioning
-	 * to AUDIO_ENABLED.
-	 */
-	if (dssdev->audio_state != OMAP_DSS_AUDIO_ENABLED) {
-		DSSERR("audio start from invalid state\n");
-		r = -EPERM;
-		goto err;
-	}
-
-	r = hdmi_audio_start();
-
-	if (!r)
-		dssdev->audio_state = OMAP_DSS_AUDIO_PLAYING;
-
-err:
-	spin_unlock_irqrestore(&hdmi.audio_lock, flags);
-	return r;
-}
-
-static void hdmi_panel_audio_stop(struct omap_dss_device *dssdev)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&hdmi.audio_lock, flags);
-
-	hdmi_audio_stop();
-	dssdev->audio_state = OMAP_DSS_AUDIO_ENABLED;
-
-	spin_unlock_irqrestore(&hdmi.audio_lock, flags);
-}
-
-static bool hdmi_panel_audio_supported(struct omap_dss_device *dssdev)
-{
-	bool r = false;
-
-	mutex_lock(&hdmi.lock);
-
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
-		goto err;
-
-	if (!hdmi_mode_has_audio())
-		goto err;
-
-	r = true;
-err:
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-static int hdmi_panel_audio_config(struct omap_dss_device *dssdev,
-		struct omap_dss_audio *audio)
-{
-	unsigned long flags;
-	int r;
-
-	mutex_lock(&hdmi.lock);
-	spin_lock_irqsave(&hdmi.audio_lock, flags);
-
-	/* config audio only if the display is active and supports audio */
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE ||
-	    !hdmi_mode_has_audio()) {
-		DSSERR("audio not supported or display is off\n");
-		r = -EPERM;
-		goto err;
-	}
-
-	r = hdmi_audio_config(audio);
-
-	if (!r)
-		dssdev->audio_state = OMAP_DSS_AUDIO_CONFIGURED;
-
-err:
-	spin_unlock_irqrestore(&hdmi.audio_lock, flags);
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-#else
-static int hdmi_panel_audio_enable(struct omap_dss_device *dssdev)
-{
-	return -EPERM;
-}
-
-static void hdmi_panel_audio_disable(struct omap_dss_device *dssdev)
-{
-}
-
-static int hdmi_panel_audio_start(struct omap_dss_device *dssdev)
-{
-	return -EPERM;
-}
-
-static void hdmi_panel_audio_stop(struct omap_dss_device *dssdev)
-{
-}
-
-static bool hdmi_panel_audio_supported(struct omap_dss_device *dssdev)
-{
-	return false;
-}
-
-static int hdmi_panel_audio_config(struct omap_dss_device *dssdev,
-		struct omap_dss_audio *audio)
-{
-	return -EPERM;
-}
-#endif
-
-static int hdmi_panel_enable(struct omap_dss_device *dssdev)
-{
-	int r = 0;
-	DSSDBG("ENTER hdmi_panel_enable\n");
-
-	mutex_lock(&hdmi.lock);
-
-	if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
-		r = -EINVAL;
-		goto err;
-	}
-
-	omapdss_hdmi_display_set_timing(dssdev, &dssdev->panel.timings);
-
-	r = omapdss_hdmi_display_enable(dssdev);
-	if (r) {
-		DSSERR("failed to power on\n");
-		goto err;
-	}
-
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
-err:
-	mutex_unlock(&hdmi.lock);
-
-	return r;
-}
-
-static void hdmi_panel_disable(struct omap_dss_device *dssdev)
-{
-	mutex_lock(&hdmi.lock);
-
-	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
-		/*
-		 * TODO: notify audio users that the display was disabled. For
-		 * now, disable audio locally to not break our audio state
-		 * machine.
-		 */
-		hdmi_panel_audio_disable(dssdev);
-		omapdss_hdmi_display_disable(dssdev);
-	}
-
-	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
-
-	mutex_unlock(&hdmi.lock);
-}
-
-static void hdmi_get_timings(struct omap_dss_device *dssdev,
-			struct omap_video_timings *timings)
-{
-	mutex_lock(&hdmi.lock);
-
-	*timings = dssdev->panel.timings;
-
-	mutex_unlock(&hdmi.lock);
-}
-
-static void hdmi_set_timings(struct omap_dss_device *dssdev,
-			struct omap_video_timings *timings)
-{
-	DSSDBG("hdmi_set_timings\n");
-
-	mutex_lock(&hdmi.lock);
-
-	/*
-	 * TODO: notify audio users that there was a timings change. For
-	 * now, disable audio locally to not break our audio state machine.
-	 */
-	hdmi_panel_audio_disable(dssdev);
-
-	omapdss_hdmi_display_set_timing(dssdev, timings);
-	dssdev->panel.timings = *timings;
-
-	mutex_unlock(&hdmi.lock);
-}
-
-static int hdmi_check_timings(struct omap_dss_device *dssdev,
-			struct omap_video_timings *timings)
-{
-	int r = 0;
-
-	DSSDBG("hdmi_check_timings\n");
-
-	mutex_lock(&hdmi.lock);
-
-	r = omapdss_hdmi_display_check_timing(dssdev, timings);
-
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-static int hdmi_read_edid(struct omap_dss_device *dssdev, u8 *buf, int len)
-{
-	int r;
-	bool need_enable;
-
-	mutex_lock(&hdmi.lock);
-
-	need_enable = dssdev->state == OMAP_DSS_DISPLAY_DISABLED;
-
-	if (need_enable) {
-		r = omapdss_hdmi_core_enable(dssdev);
-		if (r)
-			goto err;
-	}
-
-	r = omapdss_hdmi_read_edid(buf, len);
-
-	if (need_enable)
-		omapdss_hdmi_core_disable(dssdev);
-err:
-	mutex_unlock(&hdmi.lock);
-
-	return r;
-}
-
-static bool hdmi_detect(struct omap_dss_device *dssdev)
-{
-	int r;
-	bool need_enable;
-
-	mutex_lock(&hdmi.lock);
-
-	need_enable = dssdev->state == OMAP_DSS_DISPLAY_DISABLED;
-
-	if (need_enable) {
-		r = omapdss_hdmi_core_enable(dssdev);
-		if (r)
-			goto err;
-	}
-
-	r = omapdss_hdmi_detect();
-
-	if (need_enable)
-		omapdss_hdmi_core_disable(dssdev);
-err:
-	mutex_unlock(&hdmi.lock);
-
-	return r;
-}
-
-static struct omap_dss_driver hdmi_driver = {
-	.probe		= hdmi_panel_probe,
-	.remove		= hdmi_panel_remove,
-	.enable		= hdmi_panel_enable,
-	.disable	= hdmi_panel_disable,
-	.get_timings	= hdmi_get_timings,
-	.set_timings	= hdmi_set_timings,
-	.check_timings	= hdmi_check_timings,
-	.read_edid	= hdmi_read_edid,
-	.detect		= hdmi_detect,
-	.audio_enable	= hdmi_panel_audio_enable,
-	.audio_disable	= hdmi_panel_audio_disable,
-	.audio_start	= hdmi_panel_audio_start,
-	.audio_stop	= hdmi_panel_audio_stop,
-	.audio_supported	= hdmi_panel_audio_supported,
-	.audio_config	= hdmi_panel_audio_config,
-	.driver			= {
-		.name   = "hdmi_panel",
-		.owner  = THIS_MODULE,
-	},
-};
-
-int hdmi_panel_init(void)
-{
-	mutex_init(&hdmi.lock);
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	spin_lock_init(&hdmi.audio_lock);
-#endif
-
-	return omap_dss_register_driver(&hdmi_driver);
-}
-
-void hdmi_panel_exit(void)
-{
-	omap_dss_unregister_driver(&hdmi_driver);
-
-}