arch/arm/mach-msm/board-8930-display.c - kernel/msm - Gitiles

 /* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only 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.
  *
  */

 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/platform_device.h>
 #include <linux/bootmem.h>
 #include <asm/mach-types.h>
 #include <mach/msm_bus_board.h>
 #include <mach/msm_memtypes.h>
 #include <mach/board.h>
 #include <mach/gpio.h>
 #include <mach/gpiomux.h>
 #include <mach/socinfo.h>
 #include <linux/ion.h>
 #include <mach/ion.h>

 #include "devices.h"
 #include "board-8930.h"

 #ifdef CONFIG_FB_MSM_TRIPLE_BUFFER
 #define MSM_FB_PRIM_BUF_SIZE \
 		(roundup((1376 * 768 * 4), 4096) * 3) /* 4 bpp x 3 pages */
 #else
 #define MSM_FB_PRIM_BUF_SIZE \
 		(roundup((1376 * 768 * 4), 4096) * 2) /* 4 bpp x 2 pages */
 #endif

 #ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
 #define MSM_FB_EXT_BUF_SIZE \
 		(roundup((1920 * 1088 * 2), 4096) * 1) /* 2 bpp x 1 page */
 #elif defined(CONFIG_FB_MSM_TVOUT)
 #define MSM_FB_EXT_BUF_SIZE \
 		(roundup((720 * 576 * 2), 4096) * 2) /* 2 bpp x 2 pages */
 #else
 #define MSM_FB_EXT_BUF_SIZE	0
 #endif

 #ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
 /* 4 bpp x 2 page HDMI case */
 #define MSM_FB_SIZE roundup((1920 * 1088 * 4 * 2), 4096)
 #else
 /* Note: must be multiple of 4096 */
 #define MSM_FB_SIZE roundup(MSM_FB_PRIM_BUF_SIZE + MSM_FB_EXT_BUF_SIZE, 4096)
 #endif

 #ifdef CONFIG_FB_MSM_OVERLAY0_WRITEBACK
 #define MSM_FB_OVERLAY0_WRITEBACK_SIZE roundup((1376 * 768 * 3 * 2), 4096)
 #else
 #define MSM_FB_OVERLAY0_WRITEBACK_SIZE (0)
 #endif  /* CONFIG_FB_MSM_OVERLAY0_WRITEBACK */

 #ifdef CONFIG_FB_MSM_OVERLAY1_WRITEBACK
 #define MSM_FB_OVERLAY1_WRITEBACK_SIZE roundup((1920 * 1088 * 3 * 2), 4096)
 #else
 #define MSM_FB_OVERLAY1_WRITEBACK_SIZE (0)
 #endif  /* CONFIG_FB_MSM_OVERLAY1_WRITEBACK */

 #define MDP_VSYNC_GPIO 0

 #define MIPI_CMD_NOVATEK_QHD_PANEL_NAME	"mipi_cmd_novatek_qhd"
 #define MIPI_VIDEO_NOVATEK_QHD_PANEL_NAME	"mipi_video_novatek_qhd"
 #define MIPI_VIDEO_TOSHIBA_WSVGA_PANEL_NAME	"mipi_video_toshiba_wsvga"
 #define MIPI_VIDEO_CHIMEI_WXGA_PANEL_NAME	"mipi_video_chimei_wxga"
 #define MIPI_VIDEO_SIMULATOR_VGA_PANEL_NAME	"mipi_video_simulator_vga"
 #define MIPI_CMD_RENESAS_FWVGA_PANEL_NAME	"mipi_cmd_renesas_fwvga"
 #define HDMI_PANEL_NAME	"hdmi_msm"
 #define TVOUT_PANEL_NAME	"tvout_msm"

 static struct resource msm_fb_resources[] = {
 	{
 		.flags = IORESOURCE_DMA,
 	}
 };

 static int msm_fb_detect_panel(const char *name)
 {
 	if (!strncmp(name, MIPI_CMD_NOVATEK_QHD_PANEL_NAME,
 			strnlen(MIPI_CMD_NOVATEK_QHD_PANEL_NAME,
 				PANEL_NAME_MAX_LEN)))
 		return 0;

 #if !defined(CONFIG_FB_MSM_LVDS_MIPI_PANEL_DETECT) && \
 	!defined(CONFIG_FB_MSM_MIPI_PANEL_DETECT)
 	if (!strncmp(name, MIPI_VIDEO_NOVATEK_QHD_PANEL_NAME,
 			strnlen(MIPI_VIDEO_NOVATEK_QHD_PANEL_NAME,
 				PANEL_NAME_MAX_LEN)))
 		return 0;

 	if (!strncmp(name, MIPI_VIDEO_TOSHIBA_WSVGA_PANEL_NAME,
 			strnlen(MIPI_VIDEO_TOSHIBA_WSVGA_PANEL_NAME,
 				PANEL_NAME_MAX_LEN)))
 		return 0;

 	if (!strncmp(name, MIPI_VIDEO_SIMULATOR_VGA_PANEL_NAME,
 			strnlen(MIPI_VIDEO_SIMULATOR_VGA_PANEL_NAME,
 				PANEL_NAME_MAX_LEN)))
 		return 0;

 	if (!strncmp(name, MIPI_CMD_RENESAS_FWVGA_PANEL_NAME,
 			strnlen(MIPI_CMD_RENESAS_FWVGA_PANEL_NAME,
 				PANEL_NAME_MAX_LEN)))
 		return 0;
 #endif

 	if (!strncmp(name, HDMI_PANEL_NAME,
 			strnlen(HDMI_PANEL_NAME,
 				PANEL_NAME_MAX_LEN)))
 		return 0;

 	if (!strncmp(name, TVOUT_PANEL_NAME,
 			strnlen(TVOUT_PANEL_NAME,
 				PANEL_NAME_MAX_LEN)))
 		return 0;

 	pr_warning("%s: not supported '%s'", __func__, name);
 	return -ENODEV;
 }

 static struct msm_fb_platform_data msm_fb_pdata = {
 	.detect_client = msm_fb_detect_panel,
 };

 static struct platform_device msm_fb_device = {
 	.name   = "msm_fb",
 	.id     = 0,
 	.num_resources     = ARRAY_SIZE(msm_fb_resources),
 	.resource          = msm_fb_resources,
 	.dev.platform_data = &msm_fb_pdata,
 };

 static bool dsi_power_on;

 /*
  * TODO: When physical 8930/PM8038 hardware becomes
  * available, replace mipi_dsi_cdp_panel_power with
  * appropriate function.
  */
 #define DISP_RST_GPIO 58
 static int mipi_dsi_cdp_panel_power(int on)
 {
 	static struct regulator *reg_l8, *reg_l23, *reg_l2;
 	int rc;

 	pr_debug("%s: state : %d\n", __func__, on);

 	if (!dsi_power_on) {

 		reg_l8 = regulator_get(&msm_mipi_dsi1_device.dev,
 				"dsi_vdc");
 		if (IS_ERR(reg_l8)) {
 			pr_err("could not get 8038_l8, rc = %ld\n",
 				PTR_ERR(reg_l8));
 			return -ENODEV;
 		}
 		reg_l23 = regulator_get(&msm_mipi_dsi1_device.dev,
 				"dsi_vddio");
 		if (IS_ERR(reg_l23)) {
 			pr_err("could not get 8038_l23, rc = %ld\n",
 				PTR_ERR(reg_l23));
 			return -ENODEV;
 		}
 		reg_l2 = regulator_get(&msm_mipi_dsi1_device.dev,
 				"dsi_vdda");
 		if (IS_ERR(reg_l2)) {
 			pr_err("could not get 8038_l2, rc = %ld\n",
 				PTR_ERR(reg_l2));
 			return -ENODEV;
 		}
 		rc = regulator_set_voltage(reg_l8, 2800000, 3000000);
 		if (rc) {
 			pr_err("set_voltage l8 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_set_voltage(reg_l23, 1800000, 1800000);
 		if (rc) {
 			pr_err("set_voltage l23 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_set_voltage(reg_l2, 1200000, 1200000);
 		if (rc) {
 			pr_err("set_voltage l2 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = gpio_request(DISP_RST_GPIO, "disp_rst_n");
 		if (rc) {
 			pr_err("request gpio DISP_RST_GPIO failed, rc=%d\n",
 				rc);
 			gpio_free(DISP_RST_GPIO);
 			return -ENODEV;
 		}
 		dsi_power_on = true;
 	}
 	if (on) {
 		rc = regulator_set_optimum_mode(reg_l8, 100000);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l8 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_set_optimum_mode(reg_l23, 100000);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_set_optimum_mode(reg_l2, 100000);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l2 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_enable(reg_l8);
 		if (rc) {
 			pr_err("enable l8 failed, rc=%d\n", rc);
 			return -ENODEV;
 		}
 		rc = regulator_enable(reg_l23);
 		if (rc) {
 			pr_err("enable l8 failed, rc=%d\n", rc);
 			return -ENODEV;
 		}
 		rc = regulator_enable(reg_l2);
 		if (rc) {
 			pr_err("enable l2 failed, rc=%d\n", rc);
 			return -ENODEV;
 		}
 		usleep(10000);
 		gpio_set_value(DISP_RST_GPIO, 1);
 		usleep(10);
 		gpio_set_value(DISP_RST_GPIO, 0);
 		usleep(20);
 		gpio_set_value(DISP_RST_GPIO, 1);
 	} else {

 		gpio_set_value(DISP_RST_GPIO, 0);

 		rc = regulator_disable(reg_l2);
 		if (rc) {
 			pr_err("disable reg_l2 failed, rc=%d\n", rc);
 			return -ENODEV;
 		}
 		rc = regulator_disable(reg_l8);
 		if (rc) {
 			pr_err("disable reg_l8 failed, rc=%d\n", rc);
 			return -ENODEV;
 		}
 		rc = regulator_disable(reg_l23);
 		if (rc) {
 			pr_err("disable reg_l23 failed, rc=%d\n", rc);
 			return -ENODEV;
 		}
 		rc = regulator_set_optimum_mode(reg_l8, 100);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l8 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_set_optimum_mode(reg_l23, 100);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_set_optimum_mode(reg_l2, 100);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l2 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 	}
 	return 0;
 }

 static int mipi_dsi_panel_power(int on)
 {
 	pr_debug("%s: on=%d\n", __func__, on);

 	return mipi_dsi_cdp_panel_power(on);
 }

 static struct mipi_dsi_platform_data mipi_dsi_pdata = {
 	.vsync_gpio = MDP_VSYNC_GPIO,
 	.dsi_power_save = mipi_dsi_panel_power,
 };

 #ifdef CONFIG_MSM_BUS_SCALING

 static struct msm_bus_vectors mdp_init_vectors[] = {
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 0,
 		.ib = 0,
 	},
 };

 #ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
 static struct msm_bus_vectors hdmi_as_primary_vectors[] = {
 	/* If HDMI is used as primary */
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 2000000000,
 		.ib = 2000000000,
 	},
 };
 static struct msm_bus_paths mdp_bus_scale_usecases[] = {
 	{
 		ARRAY_SIZE(mdp_init_vectors),
 		mdp_init_vectors,
 	},
 	{
 		ARRAY_SIZE(hdmi_as_primary_vectors),
 		hdmi_as_primary_vectors,
 	},
 	{
 		ARRAY_SIZE(hdmi_as_primary_vectors),
 		hdmi_as_primary_vectors,
 	},
 	{
 		ARRAY_SIZE(hdmi_as_primary_vectors),
 		hdmi_as_primary_vectors,
 	},
 	{
 		ARRAY_SIZE(hdmi_as_primary_vectors),
 		hdmi_as_primary_vectors,
 	},
 	{
 		ARRAY_SIZE(hdmi_as_primary_vectors),
 		hdmi_as_primary_vectors,
 	},
 };
 #else
 static struct msm_bus_vectors mdp_ui_vectors[] = {
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 216000000 * 2,
 		.ib = 270000000 * 2,
 	},
 };

 static struct msm_bus_vectors mdp_vga_vectors[] = {
 	/* VGA and less video */
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 216000000 * 2,
 		.ib = 270000000 * 2,
 	},
 };

 static struct msm_bus_vectors mdp_720p_vectors[] = {
 	/* 720p and less video */
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 230400000 * 2,
 		.ib = 288000000 * 2,
 	},
 };

 static struct msm_bus_vectors mdp_1080p_vectors[] = {
 	/* 1080p and less video */
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 334080000 * 2,
 		.ib = 417600000 * 2,
 	},
 };

 static struct msm_bus_paths mdp_bus_scale_usecases[] = {
 	{
 		ARRAY_SIZE(mdp_init_vectors),
 		mdp_init_vectors,
 	},
 	{
 		ARRAY_SIZE(mdp_ui_vectors),
 		mdp_ui_vectors,
 	},
 	{
 		ARRAY_SIZE(mdp_ui_vectors),
 		mdp_ui_vectors,
 	},
 	{
 		ARRAY_SIZE(mdp_vga_vectors),
 		mdp_vga_vectors,
 	},
 	{
 		ARRAY_SIZE(mdp_720p_vectors),
 		mdp_720p_vectors,
 	},
 	{
 		ARRAY_SIZE(mdp_1080p_vectors),
 		mdp_1080p_vectors,
 	},
 };
 #endif

 static struct msm_bus_scale_pdata mdp_bus_scale_pdata = {
 	mdp_bus_scale_usecases,
 	ARRAY_SIZE(mdp_bus_scale_usecases),
 	.name = "mdp",
 };

 #endif

 #ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
 static int mdp_core_clk_rate_table[] = {
 	200000000,
 	200000000,
 	200000000,
 	200000000,
 };
 #else
 static int mdp_core_clk_rate_table[] = {
 	85330000,
 	128000000,
 	160000000,
 	200000000,
 };
 #endif

 static struct msm_panel_common_pdata mdp_pdata = {
 	.gpio = MDP_VSYNC_GPIO,
 #ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
 	.mdp_core_clk_rate = 200000000,
 #else
 	.mdp_core_clk_rate = 85330000,
 #endif
 	.mdp_core_clk_table = mdp_core_clk_rate_table,
 	.num_mdp_clk = ARRAY_SIZE(mdp_core_clk_rate_table),
 #ifdef CONFIG_MSM_BUS_SCALING
 	.mdp_bus_scale_table = &mdp_bus_scale_pdata,
 #endif
 	.mdp_rev = MDP_REV_42,
 #ifdef CONFIG_MSM_MULTIMEDIA_USE_ION
 	.mem_hid = ION_CP_MM_HEAP_ID,
 #else
 	.mem_hid = MEMTYPE_EBI1,
 #endif
 };

 void __init msm8930_mdp_writeback(struct memtype_reserve* reserve_table)
 {
 	mdp_pdata.ov0_wb_size = MSM_FB_OVERLAY0_WRITEBACK_SIZE;
 	mdp_pdata.ov1_wb_size = MSM_FB_OVERLAY1_WRITEBACK_SIZE;
 #if defined(CONFIG_ANDROID_PMEM) && !defined(CONFIG_MSM_MULTIMEDIA_USE_ION)
 	reserve_table[mdp_pdata.mem_hid].size +=
 		mdp_pdata.ov0_wb_size;
 	reserve_table[mdp_pdata.mem_hid].size +=
 		mdp_pdata.ov1_wb_size;
 #endif
 }

 #define LPM_CHANNEL0 0
 static int toshiba_gpio[] = {LPM_CHANNEL0};

 static struct mipi_dsi_panel_platform_data toshiba_pdata = {
 	.gpio = toshiba_gpio,
 };

 static struct platform_device mipi_dsi_toshiba_panel_device = {
 	.name = "mipi_toshiba",
 	.id = 0,
 	.dev = {
 		.platform_data = &toshiba_pdata,
 	}
 };

 #define FPGA_3D_GPIO_CONFIG_ADDR	0xB5

 static struct mipi_dsi_phy_ctrl dsi_novatek_cmd_mode_phy_db = {

 /* DSI_BIT_CLK at 500MHz, 2 lane, RGB888 */
 	{0x0F, 0x0a, 0x04, 0x00, 0x20},	/* regulator */
 	/* timing   */
 	{0xab, 0x8a, 0x18, 0x00, 0x92, 0x97, 0x1b, 0x8c,
 	0x0c, 0x03, 0x04, 0xa0},
 	{0x5f, 0x00, 0x00, 0x10},	/* phy ctrl */
 	{0xff, 0x00, 0x06, 0x00},	/* strength */
 	/* pll control */
 	{0x40, 0xf9, 0x30, 0xda, 0x00, 0x40, 0x03, 0x62,
 	0x40, 0x07, 0x03,
 	0x00, 0x1a, 0x00, 0x00, 0x02, 0x00, 0x20, 0x00, 0x01},
 };

 static struct mipi_dsi_panel_platform_data novatek_pdata = {
 	.fpga_3d_config_addr  = FPGA_3D_GPIO_CONFIG_ADDR,
 	.fpga_ctrl_mode = FPGA_SPI_INTF,
 	.phy_ctrl_settings = &dsi_novatek_cmd_mode_phy_db,
 	.dlane_swap = 0x1,
 };

 static struct platform_device mipi_dsi_novatek_panel_device = {
 	.name = "mipi_novatek",
 	.id = 0,
 	.dev = {
 		.platform_data = &novatek_pdata,
 	}
 };

 #ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
 static struct resource hdmi_msm_resources[] = {
 	{
 		.name  = "hdmi_msm_qfprom_addr",
 		.start = 0x00700000,
 		.end   = 0x007060FF,
 		.flags = IORESOURCE_MEM,
 	},
 	{
 		.name  = "hdmi_msm_hdmi_addr",
 		.start = 0x04A00000,
 		.end   = 0x04A00FFF,
 		.flags = IORESOURCE_MEM,
 	},
 	{
 		.name  = "hdmi_msm_irq",
 		.start = HDMI_IRQ,
 		.end   = HDMI_IRQ,
 		.flags = IORESOURCE_IRQ,
 	},
 };

 static int hdmi_enable_5v(int on);
 static int hdmi_core_power(int on, int show);
 static int hdmi_cec_power(int on);

 static struct msm_hdmi_platform_data hdmi_msm_data = {
 	.irq = HDMI_IRQ,
 	.enable_5v = hdmi_enable_5v,
 	.core_power = hdmi_core_power,
 	.cec_power = hdmi_cec_power,
 };

 static struct platform_device hdmi_msm_device = {
 	.name = "hdmi_msm",
 	.id = 0,
 	.num_resources = ARRAY_SIZE(hdmi_msm_resources),
 	.resource = hdmi_msm_resources,
 	.dev.platform_data = &hdmi_msm_data,
 };
 #endif /* CONFIG_FB_MSM_HDMI_MSM_PANEL */

 #ifdef CONFIG_FB_MSM_WRITEBACK_MSM_PANEL
 static struct platform_device wfd_panel_device = {
 	.name = "wfd_panel",
 	.id = 0,
 	.dev.platform_data = NULL,
 };

 static struct platform_device wfd_device = {
 	.name          = "msm_wfd",
 	.id            = -1,
 };
 #endif

 #ifdef CONFIG_MSM_BUS_SCALING
 static struct msm_bus_vectors dtv_bus_init_vectors[] = {
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 0,
 		.ib = 0,
 	},
 };

 #ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
 static struct msm_bus_vectors dtv_bus_def_vectors[] = {
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 2000000000,
 		.ib = 2000000000,
 	},
 };
 #else
 static struct msm_bus_vectors dtv_bus_def_vectors[] = {
 	{
 		.src = MSM_BUS_MASTER_MDP_PORT0,
 		.dst = MSM_BUS_SLAVE_EBI_CH0,
 		.ab = 566092800 * 2,
 		.ib = 707616000 * 2,
 	},
 };
 #endif

 static struct msm_bus_paths dtv_bus_scale_usecases[] = {
 	{
 		ARRAY_SIZE(dtv_bus_init_vectors),
 		dtv_bus_init_vectors,
 	},
 	{
 		ARRAY_SIZE(dtv_bus_def_vectors),
 		dtv_bus_def_vectors,
 	},
 };
 static struct msm_bus_scale_pdata dtv_bus_scale_pdata = {
 	dtv_bus_scale_usecases,
 	ARRAY_SIZE(dtv_bus_scale_usecases),
 	.name = "dtv",
 };

 static struct lcdc_platform_data dtv_pdata = {
 	.bus_scale_table = &dtv_bus_scale_pdata,
 };
 #endif

 #ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
 static int hdmi_enable_5v(int on)
 {
 	static struct regulator *reg_ext_5v;	/* HDMI_5V */
 	static int prev_on;
 	int rc;

 	if (on == prev_on)
 		return 0;

 	if (!reg_ext_5v) {
 		reg_ext_5v = regulator_get(&hdmi_msm_device.dev, "hdmi_mvs");
 		if (IS_ERR(reg_ext_5v)) {
 			pr_err("'%s' regulator not found, rc=%ld\n",
 				"hdmi_mvs", IS_ERR(reg_ext_5v));
 			reg_ext_5v = NULL;
 			return -ENODEV;
 		}
 	}

 	if (on) {
 		rc = regulator_enable(reg_ext_5v);
 		if (rc) {
 			pr_err("'%s' regulator enable failed, rc=%d\n",
 				"reg_ext_5v", rc);
 			return rc;
 		}
 		pr_debug("%s(on): success\n", __func__);
 	} else {
 		rc = regulator_disable(reg_ext_5v);
 		if (rc)
 			pr_warning("'%s' regulator disable failed, rc=%d\n",
 				"reg_ext_5v", rc);
 		pr_debug("%s(off): success\n", __func__);
 	}

 	prev_on = on;

 	return 0;
 }

 static int hdmi_core_power(int on, int show)
 {
 	/* Both HDMI "avdd" and "vcc" are powered by 8038_l23 regulator */
 	static struct regulator *reg_8038_l23;
 	static int prev_on;
 	int rc;

 	if (on == prev_on)
 		return 0;

 	if (!reg_8038_l23) {
 		reg_8038_l23 = regulator_get(&hdmi_msm_device.dev, "hdmi_avdd");
 		if (IS_ERR(reg_8038_l23)) {
 			pr_err("could not get reg_8038_l23, rc = %ld\n",
 				PTR_ERR(reg_8038_l23));
 			return -ENODEV;
 		}
 		rc = regulator_set_voltage(reg_8038_l23, 1800000, 1800000);
 		if (rc) {
 			pr_err("set_voltage failed for 8921_l23, rc=%d\n", rc);
 			return -EINVAL;
 		}
 	}

 	if (on) {
 		rc = regulator_set_optimum_mode(reg_8038_l23, 100000);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		rc = regulator_enable(reg_8038_l23);
 		if (rc) {
 			pr_err("'%s' regulator enable failed, rc=%d\n",
 				"hdmi_avdd", rc);
 			return rc;
 		}
 		rc = gpio_request(100, "HDMI_DDC_CLK");
 		if (rc) {
 			pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
 				"HDMI_DDC_CLK", 100, rc);
 			goto error1;
 		}
 		rc = gpio_request(101, "HDMI_DDC_DATA");
 		if (rc) {
 			pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
 				"HDMI_DDC_DATA", 101, rc);
 			goto error2;
 		}
 		rc = gpio_request(102, "HDMI_HPD");
 		if (rc) {
 			pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
 				"HDMI_HPD", 102, rc);
 			goto error3;
 		}
 		pr_debug("%s(on): success\n", __func__);
 	} else {
 		gpio_free(100);
 		gpio_free(101);
 		gpio_free(102);

 		rc = regulator_disable(reg_8038_l23);
 		if (rc) {
 			pr_err("disable reg_8038_l23 failed, rc=%d\n", rc);
 			return -ENODEV;
 		}
 		rc = regulator_set_optimum_mode(reg_8038_l23, 100);
 		if (rc < 0) {
 			pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
 			return -EINVAL;
 		}
 		pr_debug("%s(off): success\n", __func__);
 	}

 	prev_on = on;

 	return 0;

 error3:
 	gpio_free(101);
 error2:
 	gpio_free(100);
 error1:
 	regulator_disable(reg_8038_l23);
 	return rc;
 }

 static int hdmi_cec_power(int on)
 {
 	static int prev_on;
 	int rc;

 	if (on == prev_on)
 		return 0;

 	if (on) {
 		rc = gpio_request(99, "HDMI_CEC_VAR");
 		if (rc) {
 			pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
 				"HDMI_CEC_VAR", 99, rc);
 			goto error;
 		}
 		pr_debug("%s(on): success\n", __func__);
 	} else {
 		gpio_free(99);
 		pr_debug("%s(off): success\n", __func__);
 	}

 	prev_on = on;

 	return 0;
 error:
 	return rc;
 }
 #endif /* CONFIG_FB_MSM_HDMI_MSM_PANEL */

 void __init msm8930_init_fb(void)
 {
 	platform_device_register(&msm_fb_device);

 #ifdef CONFIG_FB_MSM_WRITEBACK_MSM_PANEL
 	platform_device_register(&wfd_panel_device);
 	platform_device_register(&wfd_device);
 #endif

 	platform_device_register(&mipi_dsi_novatek_panel_device);

 #ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
 	platform_device_register(&hdmi_msm_device);
 #endif

 	platform_device_register(&mipi_dsi_toshiba_panel_device);

 	msm_fb_register_device("mdp", &mdp_pdata);
 	msm_fb_register_device("mipi_dsi", &mipi_dsi_pdata);
 #ifdef CONFIG_MSM_BUS_SCALING
 	msm_fb_register_device("dtv", &dtv_pdata);
 #endif
 }

 void __init msm8930_allocate_fb_region(void)
 {
 	void *addr;
 	unsigned long size;

 	size = MSM_FB_SIZE;
 	addr = alloc_bootmem_align(size, 0x1000);
 	msm_fb_resources[0].start = __pa(addr);
 	msm_fb_resources[0].end = msm_fb_resources[0].start + size - 1;
 	pr_info("allocating %lu bytes at %p (%lx physical) for fb\n",
 			size, addr, __pa(addr));
 }
	/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only 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.
	*
	*/

	#include <linux/init.h>
	#include <linux/ioport.h>
	#include <linux/platform_device.h>
	#include <linux/bootmem.h>
	#include <asm/mach-types.h>
	#include <mach/msm_bus_board.h>
	#include <mach/msm_memtypes.h>
	#include <mach/board.h>
	#include <mach/gpio.h>
	#include <mach/gpiomux.h>
	#include <mach/socinfo.h>
	#include <linux/ion.h>
	#include <mach/ion.h>

	#include "devices.h"
	#include "board-8930.h"

	#ifdef CONFIG_FB_MSM_TRIPLE_BUFFER
	#define MSM_FB_PRIM_BUF_SIZE \
	(roundup((1376 * 768 * 4), 4096) * 3) /* 4 bpp x 3 pages */
	#else
	#define MSM_FB_PRIM_BUF_SIZE \
	(roundup((1376 * 768 * 4), 4096) * 2) /* 4 bpp x 2 pages */
	#endif

	#ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
	#define MSM_FB_EXT_BUF_SIZE \
	(roundup((1920 * 1088 * 2), 4096) * 1) /* 2 bpp x 1 page */
	#elif defined(CONFIG_FB_MSM_TVOUT)
	#define MSM_FB_EXT_BUF_SIZE \
	(roundup((720 * 576 * 2), 4096) * 2) /* 2 bpp x 2 pages */
	#else
	#define MSM_FB_EXT_BUF_SIZE 0
	#endif

	#ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
	/* 4 bpp x 2 page HDMI case */
	#define MSM_FB_SIZE roundup((1920 * 1088 * 4 * 2), 4096)
	#else
	/* Note: must be multiple of 4096 */
	#define MSM_FB_SIZE roundup(MSM_FB_PRIM_BUF_SIZE + MSM_FB_EXT_BUF_SIZE, 4096)
	#endif

	#ifdef CONFIG_FB_MSM_OVERLAY0_WRITEBACK
	#define MSM_FB_OVERLAY0_WRITEBACK_SIZE roundup((1376 * 768 * 3 * 2), 4096)
	#else
	#define MSM_FB_OVERLAY0_WRITEBACK_SIZE (0)
	#endif /* CONFIG_FB_MSM_OVERLAY0_WRITEBACK */

	#ifdef CONFIG_FB_MSM_OVERLAY1_WRITEBACK
	#define MSM_FB_OVERLAY1_WRITEBACK_SIZE roundup((1920 * 1088 * 3 * 2), 4096)
	#else
	#define MSM_FB_OVERLAY1_WRITEBACK_SIZE (0)
	#endif /* CONFIG_FB_MSM_OVERLAY1_WRITEBACK */

	#define MDP_VSYNC_GPIO 0

	#define MIPI_CMD_NOVATEK_QHD_PANEL_NAME "mipi_cmd_novatek_qhd"
	#define MIPI_VIDEO_NOVATEK_QHD_PANEL_NAME "mipi_video_novatek_qhd"
	#define MIPI_VIDEO_TOSHIBA_WSVGA_PANEL_NAME "mipi_video_toshiba_wsvga"
	#define MIPI_VIDEO_CHIMEI_WXGA_PANEL_NAME "mipi_video_chimei_wxga"
	#define MIPI_VIDEO_SIMULATOR_VGA_PANEL_NAME "mipi_video_simulator_vga"
	#define MIPI_CMD_RENESAS_FWVGA_PANEL_NAME "mipi_cmd_renesas_fwvga"
	#define HDMI_PANEL_NAME "hdmi_msm"
	#define TVOUT_PANEL_NAME "tvout_msm"

	static struct resource msm_fb_resources[] = {
	{
	.flags = IORESOURCE_DMA,
	}
	};

	static int msm_fb_detect_panel(const char *name)
	{
	if (!strncmp(name, MIPI_CMD_NOVATEK_QHD_PANEL_NAME,
	strnlen(MIPI_CMD_NOVATEK_QHD_PANEL_NAME,
	PANEL_NAME_MAX_LEN)))
	return 0;

	#if !defined(CONFIG_FB_MSM_LVDS_MIPI_PANEL_DETECT) && \
	!defined(CONFIG_FB_MSM_MIPI_PANEL_DETECT)
	if (!strncmp(name, MIPI_VIDEO_NOVATEK_QHD_PANEL_NAME,
	strnlen(MIPI_VIDEO_NOVATEK_QHD_PANEL_NAME,
	PANEL_NAME_MAX_LEN)))
	return 0;

	if (!strncmp(name, MIPI_VIDEO_TOSHIBA_WSVGA_PANEL_NAME,
	strnlen(MIPI_VIDEO_TOSHIBA_WSVGA_PANEL_NAME,
	PANEL_NAME_MAX_LEN)))
	return 0;

	if (!strncmp(name, MIPI_VIDEO_SIMULATOR_VGA_PANEL_NAME,
	strnlen(MIPI_VIDEO_SIMULATOR_VGA_PANEL_NAME,
	PANEL_NAME_MAX_LEN)))
	return 0;

	if (!strncmp(name, MIPI_CMD_RENESAS_FWVGA_PANEL_NAME,
	strnlen(MIPI_CMD_RENESAS_FWVGA_PANEL_NAME,
	PANEL_NAME_MAX_LEN)))
	return 0;
	#endif

	if (!strncmp(name, HDMI_PANEL_NAME,
	strnlen(HDMI_PANEL_NAME,
	PANEL_NAME_MAX_LEN)))
	return 0;

	if (!strncmp(name, TVOUT_PANEL_NAME,
	strnlen(TVOUT_PANEL_NAME,
	PANEL_NAME_MAX_LEN)))
	return 0;

	pr_warning("%s: not supported '%s'", __func__, name);
	return -ENODEV;
	}

	static struct msm_fb_platform_data msm_fb_pdata = {
	.detect_client = msm_fb_detect_panel,
	};

	static struct platform_device msm_fb_device = {
	.name = "msm_fb",
	.id = 0,
	.num_resources = ARRAY_SIZE(msm_fb_resources),
	.resource = msm_fb_resources,
	.dev.platform_data = &msm_fb_pdata,
	};

	static bool dsi_power_on;

	/*
	* TODO: When physical 8930/PM8038 hardware becomes
	* available, replace mipi_dsi_cdp_panel_power with
	* appropriate function.
	*/
	#define DISP_RST_GPIO 58
	static int mipi_dsi_cdp_panel_power(int on)
	{
	static struct regulator reg_l8, reg_l23, *reg_l2;
	int rc;

	pr_debug("%s: state : %d\n", __func__, on);

	if (!dsi_power_on) {

	reg_l8 = regulator_get(&msm_mipi_dsi1_device.dev,
	"dsi_vdc");
	if (IS_ERR(reg_l8)) {
	pr_err("could not get 8038_l8, rc = %ld\n",
	PTR_ERR(reg_l8));
	return -ENODEV;
	}
	reg_l23 = regulator_get(&msm_mipi_dsi1_device.dev,
	"dsi_vddio");
	if (IS_ERR(reg_l23)) {
	pr_err("could not get 8038_l23, rc = %ld\n",
	PTR_ERR(reg_l23));
	return -ENODEV;
	}
	reg_l2 = regulator_get(&msm_mipi_dsi1_device.dev,
	"dsi_vdda");
	if (IS_ERR(reg_l2)) {
	pr_err("could not get 8038_l2, rc = %ld\n",
	PTR_ERR(reg_l2));
	return -ENODEV;
	}
	rc = regulator_set_voltage(reg_l8, 2800000, 3000000);
	if (rc) {
	pr_err("set_voltage l8 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_set_voltage(reg_l23, 1800000, 1800000);
	if (rc) {
	pr_err("set_voltage l23 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_set_voltage(reg_l2, 1200000, 1200000);
	if (rc) {
	pr_err("set_voltage l2 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = gpio_request(DISP_RST_GPIO, "disp_rst_n");
	if (rc) {
	pr_err("request gpio DISP_RST_GPIO failed, rc=%d\n",
	rc);
	gpio_free(DISP_RST_GPIO);
	return -ENODEV;
	}
	dsi_power_on = true;
	}
	if (on) {
	rc = regulator_set_optimum_mode(reg_l8, 100000);
	if (rc < 0) {
	pr_err("set_optimum_mode l8 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_set_optimum_mode(reg_l23, 100000);
	if (rc < 0) {
	pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_set_optimum_mode(reg_l2, 100000);
	if (rc < 0) {
	pr_err("set_optimum_mode l2 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_enable(reg_l8);
	if (rc) {
	pr_err("enable l8 failed, rc=%d\n", rc);
	return -ENODEV;
	}
	rc = regulator_enable(reg_l23);
	if (rc) {
	pr_err("enable l8 failed, rc=%d\n", rc);
	return -ENODEV;
	}
	rc = regulator_enable(reg_l2);
	if (rc) {
	pr_err("enable l2 failed, rc=%d\n", rc);
	return -ENODEV;
	}
	usleep(10000);
	gpio_set_value(DISP_RST_GPIO, 1);
	usleep(10);
	gpio_set_value(DISP_RST_GPIO, 0);
	usleep(20);
	gpio_set_value(DISP_RST_GPIO, 1);
	} else {

	gpio_set_value(DISP_RST_GPIO, 0);

	rc = regulator_disable(reg_l2);
	if (rc) {
	pr_err("disable reg_l2 failed, rc=%d\n", rc);
	return -ENODEV;
	}
	rc = regulator_disable(reg_l8);
	if (rc) {
	pr_err("disable reg_l8 failed, rc=%d\n", rc);
	return -ENODEV;
	}
	rc = regulator_disable(reg_l23);
	if (rc) {
	pr_err("disable reg_l23 failed, rc=%d\n", rc);
	return -ENODEV;
	}
	rc = regulator_set_optimum_mode(reg_l8, 100);
	if (rc < 0) {
	pr_err("set_optimum_mode l8 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_set_optimum_mode(reg_l23, 100);
	if (rc < 0) {
	pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_set_optimum_mode(reg_l2, 100);
	if (rc < 0) {
	pr_err("set_optimum_mode l2 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	}
	return 0;
	}

	static int mipi_dsi_panel_power(int on)
	{
	pr_debug("%s: on=%d\n", __func__, on);

	return mipi_dsi_cdp_panel_power(on);
	}

	static struct mipi_dsi_platform_data mipi_dsi_pdata = {
	.vsync_gpio = MDP_VSYNC_GPIO,
	.dsi_power_save = mipi_dsi_panel_power,
	};

	#ifdef CONFIG_MSM_BUS_SCALING

	static struct msm_bus_vectors mdp_init_vectors[] = {
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 0,
	.ib = 0,
	},
	};

	#ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
	static struct msm_bus_vectors hdmi_as_primary_vectors[] = {
	/* If HDMI is used as primary */
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 2000000000,
	.ib = 2000000000,
	},
	};
	static struct msm_bus_paths mdp_bus_scale_usecases[] = {
	{
	ARRAY_SIZE(mdp_init_vectors),
	mdp_init_vectors,
	},
	{
	ARRAY_SIZE(hdmi_as_primary_vectors),
	hdmi_as_primary_vectors,
	},
	{
	ARRAY_SIZE(hdmi_as_primary_vectors),
	hdmi_as_primary_vectors,
	},
	{
	ARRAY_SIZE(hdmi_as_primary_vectors),
	hdmi_as_primary_vectors,
	},
	{
	ARRAY_SIZE(hdmi_as_primary_vectors),
	hdmi_as_primary_vectors,
	},
	{
	ARRAY_SIZE(hdmi_as_primary_vectors),
	hdmi_as_primary_vectors,
	},
	};
	#else
	static struct msm_bus_vectors mdp_ui_vectors[] = {
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 216000000 * 2,
	.ib = 270000000 * 2,
	},
	};

	static struct msm_bus_vectors mdp_vga_vectors[] = {
	/* VGA and less video */
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 216000000 * 2,
	.ib = 270000000 * 2,
	},
	};

	static struct msm_bus_vectors mdp_720p_vectors[] = {
	/* 720p and less video */
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 230400000 * 2,
	.ib = 288000000 * 2,
	},
	};

	static struct msm_bus_vectors mdp_1080p_vectors[] = {
	/* 1080p and less video */
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 334080000 * 2,
	.ib = 417600000 * 2,
	},
	};

	static struct msm_bus_paths mdp_bus_scale_usecases[] = {
	{
	ARRAY_SIZE(mdp_init_vectors),
	mdp_init_vectors,
	},
	{
	ARRAY_SIZE(mdp_ui_vectors),
	mdp_ui_vectors,
	},
	{
	ARRAY_SIZE(mdp_ui_vectors),
	mdp_ui_vectors,
	},
	{
	ARRAY_SIZE(mdp_vga_vectors),
	mdp_vga_vectors,
	},
	{
	ARRAY_SIZE(mdp_720p_vectors),
	mdp_720p_vectors,
	},
	{
	ARRAY_SIZE(mdp_1080p_vectors),
	mdp_1080p_vectors,
	},
	};
	#endif

	static struct msm_bus_scale_pdata mdp_bus_scale_pdata = {
	mdp_bus_scale_usecases,
	ARRAY_SIZE(mdp_bus_scale_usecases),
	.name = "mdp",
	};

	#endif

	#ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
	static int mdp_core_clk_rate_table[] = {
	200000000,
	200000000,
	200000000,
	200000000,
	};
	#else
	static int mdp_core_clk_rate_table[] = {
	85330000,
	128000000,
	160000000,
	200000000,
	};
	#endif

	static struct msm_panel_common_pdata mdp_pdata = {
	.gpio = MDP_VSYNC_GPIO,
	#ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
	.mdp_core_clk_rate = 200000000,
	#else
	.mdp_core_clk_rate = 85330000,
	#endif
	.mdp_core_clk_table = mdp_core_clk_rate_table,
	.num_mdp_clk = ARRAY_SIZE(mdp_core_clk_rate_table),
	#ifdef CONFIG_MSM_BUS_SCALING
	.mdp_bus_scale_table = &mdp_bus_scale_pdata,
	#endif
	.mdp_rev = MDP_REV_42,
	#ifdef CONFIG_MSM_MULTIMEDIA_USE_ION
	.mem_hid = ION_CP_MM_HEAP_ID,
	#else
	.mem_hid = MEMTYPE_EBI1,
	#endif
	};

	void __init msm8930_mdp_writeback(struct memtype_reserve* reserve_table)
	{
	mdp_pdata.ov0_wb_size = MSM_FB_OVERLAY0_WRITEBACK_SIZE;
	mdp_pdata.ov1_wb_size = MSM_FB_OVERLAY1_WRITEBACK_SIZE;
	#if defined(CONFIG_ANDROID_PMEM) && !defined(CONFIG_MSM_MULTIMEDIA_USE_ION)
	reserve_table[mdp_pdata.mem_hid].size +=
	mdp_pdata.ov0_wb_size;
	reserve_table[mdp_pdata.mem_hid].size +=
	mdp_pdata.ov1_wb_size;
	#endif
	}

	#define LPM_CHANNEL0 0
	static int toshiba_gpio[] = {LPM_CHANNEL0};

	static struct mipi_dsi_panel_platform_data toshiba_pdata = {
	.gpio = toshiba_gpio,
	};

	static struct platform_device mipi_dsi_toshiba_panel_device = {
	.name = "mipi_toshiba",
	.id = 0,
	.dev = {
	.platform_data = &toshiba_pdata,
	}
	};

	#define FPGA_3D_GPIO_CONFIG_ADDR 0xB5

	static struct mipi_dsi_phy_ctrl dsi_novatek_cmd_mode_phy_db = {

	/* DSI_BIT_CLK at 500MHz, 2 lane, RGB888 */
	{0x0F, 0x0a, 0x04, 0x00, 0x20}, /* regulator */
	/* timing */
	{0xab, 0x8a, 0x18, 0x00, 0x92, 0x97, 0x1b, 0x8c,
	0x0c, 0x03, 0x04, 0xa0},
	{0x5f, 0x00, 0x00, 0x10}, /* phy ctrl */
	{0xff, 0x00, 0x06, 0x00}, /* strength */
	/* pll control */
	{0x40, 0xf9, 0x30, 0xda, 0x00, 0x40, 0x03, 0x62,
	0x40, 0x07, 0x03,
	0x00, 0x1a, 0x00, 0x00, 0x02, 0x00, 0x20, 0x00, 0x01},
	};

	static struct mipi_dsi_panel_platform_data novatek_pdata = {
	.fpga_3d_config_addr = FPGA_3D_GPIO_CONFIG_ADDR,
	.fpga_ctrl_mode = FPGA_SPI_INTF,
	.phy_ctrl_settings = &dsi_novatek_cmd_mode_phy_db,
	.dlane_swap = 0x1,
	};

	static struct platform_device mipi_dsi_novatek_panel_device = {
	.name = "mipi_novatek",
	.id = 0,
	.dev = {
	.platform_data = &novatek_pdata,
	}
	};

	#ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
	static struct resource hdmi_msm_resources[] = {
	{
	.name = "hdmi_msm_qfprom_addr",
	.start = 0x00700000,
	.end = 0x007060FF,
	.flags = IORESOURCE_MEM,
	},
	{
	.name = "hdmi_msm_hdmi_addr",
	.start = 0x04A00000,
	.end = 0x04A00FFF,
	.flags = IORESOURCE_MEM,
	},
	{
	.name = "hdmi_msm_irq",
	.start = HDMI_IRQ,
	.end = HDMI_IRQ,
	.flags = IORESOURCE_IRQ,
	},
	};

	static int hdmi_enable_5v(int on);
	static int hdmi_core_power(int on, int show);
	static int hdmi_cec_power(int on);

	static struct msm_hdmi_platform_data hdmi_msm_data = {
	.irq = HDMI_IRQ,
	.enable_5v = hdmi_enable_5v,
	.core_power = hdmi_core_power,
	.cec_power = hdmi_cec_power,
	};

	static struct platform_device hdmi_msm_device = {
	.name = "hdmi_msm",
	.id = 0,
	.num_resources = ARRAY_SIZE(hdmi_msm_resources),
	.resource = hdmi_msm_resources,
	.dev.platform_data = &hdmi_msm_data,
	};
	#endif /* CONFIG_FB_MSM_HDMI_MSM_PANEL */

	#ifdef CONFIG_FB_MSM_WRITEBACK_MSM_PANEL
	static struct platform_device wfd_panel_device = {
	.name = "wfd_panel",
	.id = 0,
	.dev.platform_data = NULL,
	};

	static struct platform_device wfd_device = {
	.name = "msm_wfd",
	.id = -1,
	};
	#endif

	#ifdef CONFIG_MSM_BUS_SCALING
	static struct msm_bus_vectors dtv_bus_init_vectors[] = {
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 0,
	.ib = 0,
	},
	};

	#ifdef CONFIG_FB_MSM_HDMI_AS_PRIMARY
	static struct msm_bus_vectors dtv_bus_def_vectors[] = {
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 2000000000,
	.ib = 2000000000,
	},
	};
	#else
	static struct msm_bus_vectors dtv_bus_def_vectors[] = {
	{
	.src = MSM_BUS_MASTER_MDP_PORT0,
	.dst = MSM_BUS_SLAVE_EBI_CH0,
	.ab = 566092800 * 2,
	.ib = 707616000 * 2,
	},
	};
	#endif

	static struct msm_bus_paths dtv_bus_scale_usecases[] = {
	{
	ARRAY_SIZE(dtv_bus_init_vectors),
	dtv_bus_init_vectors,
	},
	{
	ARRAY_SIZE(dtv_bus_def_vectors),
	dtv_bus_def_vectors,
	},
	};
	static struct msm_bus_scale_pdata dtv_bus_scale_pdata = {
	dtv_bus_scale_usecases,
	ARRAY_SIZE(dtv_bus_scale_usecases),
	.name = "dtv",
	};

	static struct lcdc_platform_data dtv_pdata = {
	.bus_scale_table = &dtv_bus_scale_pdata,
	};
	#endif

	#ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
	static int hdmi_enable_5v(int on)
	{
	static struct regulator reg_ext_5v; / HDMI_5V */
	static int prev_on;
	int rc;

	if (on == prev_on)
	return 0;

	if (!reg_ext_5v) {
	reg_ext_5v = regulator_get(&hdmi_msm_device.dev, "hdmi_mvs");
	if (IS_ERR(reg_ext_5v)) {
	pr_err("'%s' regulator not found, rc=%ld\n",
	"hdmi_mvs", IS_ERR(reg_ext_5v));
	reg_ext_5v = NULL;
	return -ENODEV;
	}
	}

	if (on) {
	rc = regulator_enable(reg_ext_5v);
	if (rc) {
	pr_err("'%s' regulator enable failed, rc=%d\n",
	"reg_ext_5v", rc);
	return rc;
	}
	pr_debug("%s(on): success\n", __func__);
	} else {
	rc = regulator_disable(reg_ext_5v);
	if (rc)
	pr_warning("'%s' regulator disable failed, rc=%d\n",
	"reg_ext_5v", rc);
	pr_debug("%s(off): success\n", __func__);
	}

	prev_on = on;

	return 0;
	}

	static int hdmi_core_power(int on, int show)
	{
	/* Both HDMI "avdd" and "vcc" are powered by 8038_l23 regulator */
	static struct regulator *reg_8038_l23;
	static int prev_on;
	int rc;

	if (on == prev_on)
	return 0;

	if (!reg_8038_l23) {
	reg_8038_l23 = regulator_get(&hdmi_msm_device.dev, "hdmi_avdd");
	if (IS_ERR(reg_8038_l23)) {
	pr_err("could not get reg_8038_l23, rc = %ld\n",
	PTR_ERR(reg_8038_l23));
	return -ENODEV;
	}
	rc = regulator_set_voltage(reg_8038_l23, 1800000, 1800000);
	if (rc) {
	pr_err("set_voltage failed for 8921_l23, rc=%d\n", rc);
	return -EINVAL;
	}
	}

	if (on) {
	rc = regulator_set_optimum_mode(reg_8038_l23, 100000);
	if (rc < 0) {
	pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	rc = regulator_enable(reg_8038_l23);
	if (rc) {
	pr_err("'%s' regulator enable failed, rc=%d\n",
	"hdmi_avdd", rc);
	return rc;
	}
	rc = gpio_request(100, "HDMI_DDC_CLK");
	if (rc) {
	pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
	"HDMI_DDC_CLK", 100, rc);
	goto error1;
	}
	rc = gpio_request(101, "HDMI_DDC_DATA");
	if (rc) {
	pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
	"HDMI_DDC_DATA", 101, rc);
	goto error2;
	}
	rc = gpio_request(102, "HDMI_HPD");
	if (rc) {
	pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
	"HDMI_HPD", 102, rc);
	goto error3;
	}
	pr_debug("%s(on): success\n", __func__);
	} else {
	gpio_free(100);
	gpio_free(101);
	gpio_free(102);

	rc = regulator_disable(reg_8038_l23);
	if (rc) {
	pr_err("disable reg_8038_l23 failed, rc=%d\n", rc);
	return -ENODEV;
	}
	rc = regulator_set_optimum_mode(reg_8038_l23, 100);
	if (rc < 0) {
	pr_err("set_optimum_mode l23 failed, rc=%d\n", rc);
	return -EINVAL;
	}
	pr_debug("%s(off): success\n", __func__);
	}

	prev_on = on;

	return 0;

	error3:
	gpio_free(101);
	error2:
	gpio_free(100);
	error1:
	regulator_disable(reg_8038_l23);
	return rc;
	}

	static int hdmi_cec_power(int on)
	{
	static int prev_on;
	int rc;

	if (on == prev_on)
	return 0;

	if (on) {
	rc = gpio_request(99, "HDMI_CEC_VAR");
	if (rc) {
	pr_err("'%s'(%d) gpio_request failed, rc=%d\n",
	"HDMI_CEC_VAR", 99, rc);
	goto error;
	}
	pr_debug("%s(on): success\n", __func__);
	} else {
	gpio_free(99);
	pr_debug("%s(off): success\n", __func__);
	}

	prev_on = on;

	return 0;
	error:
	return rc;
	}
	#endif /* CONFIG_FB_MSM_HDMI_MSM_PANEL */

	void __init msm8930_init_fb(void)
	{
	platform_device_register(&msm_fb_device);

	#ifdef CONFIG_FB_MSM_WRITEBACK_MSM_PANEL
	platform_device_register(&wfd_panel_device);
	platform_device_register(&wfd_device);
	#endif

	platform_device_register(&mipi_dsi_novatek_panel_device);

	#ifdef CONFIG_FB_MSM_HDMI_MSM_PANEL
	platform_device_register(&hdmi_msm_device);
	#endif

	platform_device_register(&mipi_dsi_toshiba_panel_device);

	msm_fb_register_device("mdp", &mdp_pdata);
	msm_fb_register_device("mipi_dsi", &mipi_dsi_pdata);
	#ifdef CONFIG_MSM_BUS_SCALING
	msm_fb_register_device("dtv", &dtv_pdata);
	#endif
	}

	void __init msm8930_allocate_fb_region(void)
	{
	void *addr;
	unsigned long size;

	size = MSM_FB_SIZE;
	addr = alloc_bootmem_align(size, 0x1000);
	msm_fb_resources[0].start = __pa(addr);
	msm_fb_resources[0].end = msm_fb_resources[0].start + size - 1;
	pr_info("allocating %lu bytes at %p (%lx physical) for fb\n",
	size, addr, __pa(addr));
	}