ARM: tegra: TAI: Add E1239 support

Bug 1002637

Change-Id: I1271f95e8c174422bcb93eed3cc2bd7df8012479
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: http://git-master/r/123537
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Scott Peterson <speterson@nvidia.com>

1 files changed, 96 insertions, 16 deletions

diff --git a/arch/arm/mach-tegra/board-enterprise-panel.c b/arch/arm/mach-tegra/board-enterprise-panel.c
index 366bf921393d..c27201171e4b 100644
--- a/arch/arm/mach-tegra/board-enterprise-panel.c
+++ b/arch/arm/mach-tegra/board-enterprise-panel.c
@@ -63,6 +63,8 @@
 
 #define enterprise_lcd_te		TEGRA_GPIO_PJ1
 
+#define enterprise_bl_pwm		TEGRA_GPIO_PH3
+
 #ifdef CONFIG_TEGRA_DC
 static struct regulator *enterprise_dsi_reg;
 static bool dsi_regulator_status;
@@ -167,6 +169,16 @@ static int enterprise_backlight_notify(struct device *unused, int brightness)
 
 static int enterprise_disp1_check_fb(struct device *dev, struct fb_info *info);
 
+static struct platform_pwm_backlight_data external_pwm_disp1_backlight_data = {
+	.pwm_id		= 3,
+	.max_brightness	= 255,
+	.dft_brightness	= 224,
+	.pwm_period_ns	= 1000000,
+	.notify		= enterprise_backlight_notify,
+	/* Only toggle backlight on fb blank notifications for disp1 */
+	.check_fb	= enterprise_disp1_check_fb,
+};
+
 #if IS_EXTERNAL_PWM
 static struct platform_pwm_backlight_data enterprise_disp1_backlight_data = {
 	.pwm_id		= 3,
@@ -212,10 +224,21 @@ static struct platform_device enterprise_disp1_backlight_device = {
 	},
 };
 
+static struct platform_device external_pwm_disp1_backlight_device = {
+	.name	= "pwm-backlight",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &external_pwm_disp1_backlight_data,
+	},
+};
 #ifdef CONFIG_TEGRA_DC
 static int enterprise_hdmi_vddio_enable(void)
 {
 	int ret;
+	struct board_info board_info;
+
+	tegra_get_board_info(&board_info);
+
 	if (!enterprise_hdmi_vddio) {
 		enterprise_hdmi_vddio = regulator_get(NULL, "hdmi_5v0");
 		if (IS_ERR_OR_NULL(enterprise_hdmi_vddio)) {
@@ -232,16 +255,40 @@ static int enterprise_hdmi_vddio_enable(void)
 		enterprise_hdmi_vddio = NULL;
 		return ret;
 	}
+	if (board_info.board_id == BOARD_E1239) {
+		ret = gpio_request(TEGRA_GPIO_PM4, "en_hdmi_buffers");
+		if (ret < 0) {
+			pr_err("%s: gpio_request failed %d\n", __func__, ret);
+			return ret;
+		}
+
+		ret = gpio_direction_output(TEGRA_GPIO_PM4, 1);
+		if (ret < 0) {
+			pr_err("%s: gpio_direction_ouput failed %d\n",
+				__func__, ret);
+			gpio_free(TEGRA_GPIO_PM4);
+			return ret;
+		}
+	}
+
 	return ret;
 }
 
 static int enterprise_hdmi_vddio_disable(void)
 {
+	struct board_info board_info;
+
+	tegra_get_board_info(&board_info);
+
 	if (enterprise_hdmi_vddio) {
 		regulator_disable(enterprise_hdmi_vddio);
 		regulator_put(enterprise_hdmi_vddio);
 		enterprise_hdmi_vddio = NULL;
 	}
+	if (board_info.board_id == BOARD_E1239) {
+		gpio_set_value(TEGRA_GPIO_PM4, 0);
+		gpio_free(TEGRA_GPIO_PM4);
+	}
 	return 0;
 }
 
@@ -528,8 +575,10 @@ static int enterprise_dsi_panel_enable(void)
 	if (ret)
 		return ret;
 
+
 #if DSI_PANEL_RESET
-	if (board_info.fab >= BOARD_FAB_A03) {
+	if ((board_info.fab >= BOARD_FAB_A03) ||
+		(board_info.board_id == BOARD_E1239)) {
 		if (enterprise_lcd_reg == NULL) {
 			enterprise_lcd_reg = regulator_get(NULL, "lcd_vddio_en");
 			if (IS_ERR_OR_NULL(enterprise_lcd_reg)) {
@@ -812,6 +861,13 @@ static struct platform_device *enterprise_gfx_devices[] __initdata = {
 #endif
 };
 
+static struct platform_device *external_pwm_gfx_devices[] __initdata = {
+#if defined(CONFIG_TEGRA_NVMAP)
+	&enterprise_nvmap_device,
+#endif
+	&tegra_pwfm3_device,
+};
+
 static struct platform_device *enterprise_bl_devices[]  = {
 	&enterprise_disp1_backlight_device,
 };
@@ -859,14 +915,22 @@ int __init enterprise_panel_init(void)
 	BUILD_BUG_ON(ARRAY_SIZE(enterprise_bl_output_measured_a03) != 256);
 	BUILD_BUG_ON(ARRAY_SIZE(enterprise_bl_output_measured_a02) != 256);
 
-	if (board_info.fab >= BOARD_FAB_A03) {
+	if (board_info.board_id != BOARD_E1239) {
+		if (board_info.fab >= BOARD_FAB_A03) {
 #if !(IS_EXTERNAL_PWM)
-		enterprise_disp1_backlight_data.clk_div = 0x1D;
+			enterprise_disp1_backlight_data.clk_div = 0x1D;
 #endif
-		bl_output = enterprise_bl_output_measured_a03;
-	} else
-		bl_output = enterprise_bl_output_measured_a02;
-
+			bl_output = enterprise_bl_output_measured_a03;
+		} else
+			bl_output = enterprise_bl_output_measured_a02;
+	} else {
+		enterprise_sd_settings.bl_device =
+					&external_pwm_disp1_backlight_device;
+		enterprise_bl_devices[0]         =
+					&external_pwm_disp1_backlight_device;
+		bl_output                        =
+					enterprise_bl_output_measured_a03;
+	}
 	enterprise_dsi.chip_id = tegra_get_chipid();
 	enterprise_dsi.chip_rev = tegra_get_revision();
 
@@ -878,13 +942,25 @@ int __init enterprise_panel_init(void)
 	gpio_request(enterprise_hdmi_hpd, "hdmi_hpd");
 	gpio_direction_input(enterprise_hdmi_hpd);
 
-	gpio_request(enterprise_lcd_2d_3d, "lcd_2d_3d");
-	gpio_direction_output(enterprise_lcd_2d_3d, 0);
-	enterprise_stereo_set_mode(enterprise_stereo.mode_2d_3d);
+	if (board_info.board_id != BOARD_E1239) {
+		gpio_request(enterprise_lcd_2d_3d, "lcd_2d_3d");
+		gpio_direction_output(enterprise_lcd_2d_3d, 0);
+		enterprise_stereo_set_mode(enterprise_stereo.mode_2d_3d);
 
-	gpio_request(enterprise_lcd_swp_pl, "lcd_swp_pl");
-	gpio_direction_output(enterprise_lcd_swp_pl, 0);
-	enterprise_stereo_set_orientation(enterprise_stereo.orientation);
+		gpio_request(enterprise_lcd_swp_pl, "lcd_swp_pl");
+		gpio_direction_output(enterprise_lcd_swp_pl, 0);
+		enterprise_stereo_set_orientation(
+						enterprise_stereo.orientation);
+#if IS_EXTERNAL_PWM
+		gpio_request(enterprise_bl_pwm, "bl_pwm");
+		gpio_free(enterprise_bl_pwm);
+#endif
+	} else {
+		/* External pwm is used but do not use IS_EXTERNAL_PWM
+		compiler switch for TAI */
+		gpio_request(enterprise_bl_pwm, "bl_pwm");
+		gpio_free(enterprise_bl_pwm);
+	}
 
 #if !(DC_CTRL_MODE & TEGRA_DC_OUT_ONE_SHOT_MODE)
 	gpio_request(enterprise_lcd_swp_pl, "lcd_te");
@@ -904,9 +980,13 @@ int __init enterprise_panel_init(void)
 		return err;
 #endif
 
-	err = platform_add_devices(enterprise_gfx_devices,
-				ARRAY_SIZE(enterprise_gfx_devices));
-
+	if (board_info.board_id != BOARD_E1239) {
+		err = platform_add_devices(enterprise_gfx_devices,
+					ARRAY_SIZE(enterprise_gfx_devices));
+	} else {
+		err = platform_add_devices(external_pwm_gfx_devices,
+					ARRAY_SIZE(external_pwm_gfx_devices));
+	}
 #if defined(CONFIG_TEGRA_GRHOST) && defined(CONFIG_TEGRA_DC)
 	res = nvhost_get_resource_byname(&enterprise_disp1_device,
 					 IORESOURCE_MEM, "fbmem");