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path: root/recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0069-DSS2-OMAP3EVM-Added-DSI-powerup-and-powerdown-func.patch
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From b06406f3e5c3958f69185314c969f7c1a3265f71 Mon Sep 17 00:00:00 2001
From: Hardik Shah <hardik.shah@ti.com>
Date: Thu, 14 May 2009 15:04:17 +0530
Subject: [PATCH 69/69] DSS2: OMAP3EVM: Added DSI powerup and powerdown functions

Copied fom 3430sdp implementation.

Signed-off-by: Hardik Shah <hardik.shah@ti.com>
---
 arch/arm/mach-omap2/board-omap3evm.c |   62 +++++++++++++++++++++-------------
 1 files changed, 38 insertions(+), 24 deletions(-)

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 6f5a866..57c4fc7 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -237,6 +237,38 @@ static int __init omap3_evm_i2c_init(void)
 static int lcd_enabled;
 static int dvi_enabled;
 
+static void enable_vpll2(int enable)
+{
+	u8 ded_val, grp_val;
+
+	if (enable) {
+		ded_val = ENABLE_VPLL2_DEDICATED;
+		grp_val = ENABLE_VPLL2_DEV_GRP;
+	} else {
+		ded_val = 0;
+		grp_val = 0;
+	}
+
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			ded_val, TWL4030_VPLL2_DEDICATED);
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			grp_val, TWL4030_VPLL2_DEV_GRP);
+}
+
+static int omap3evm_dsi_power_up(void)
+{
+	if (omap_rev() > OMAP3430_REV_ES1_0)
+		enable_vpll2(1);
+	return 0;
+}
+
+static void omap3evm_dsi_power_down(void)
+{
+	if (omap_rev() > OMAP3430_REV_ES1_0)
+		enable_vpll2(0);
+}
+
+
 static void __init omap3_evm_display_init(void)
 {
 	int r;
@@ -306,12 +338,7 @@ static int omap3_evm_panel_enable_lcd(struct omap_display *display)
 		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 		return -EINVAL;
 	}
-	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
-			ENABLE_VPLL2_DEDICATED, TWL4030_VPLL2_DEDICATED);
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
-			ENABLE_VPLL2_DEV_GRP, TWL4030_VPLL2_DEV_GRP);
-	}
+	omap3evm_dsi_power_up();
 	gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0);
 	lcd_enabled = 1;
 	return 0;
@@ -319,12 +346,7 @@ static int omap3_evm_panel_enable_lcd(struct omap_display *display)
 
 static void omap3_evm_panel_disable_lcd(struct omap_display *display)
 {
-	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
-				TWL4030_VPLL2_DEDICATED);
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
-				TWL4030_VPLL2_DEV_GRP);
-	}
+	omap3evm_dsi_power_down();
 	gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1);
 	lcd_enabled = 0;
 }
@@ -370,13 +392,8 @@ static int omap3_evm_panel_enable_dvi(struct omap_display *display)
 		printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 		return -EINVAL;
 	}
-	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
-			ENABLE_VPLL2_DEDICATED, TWL4030_VPLL2_DEDICATED);
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
-			ENABLE_VPLL2_DEV_GRP, TWL4030_VPLL2_DEV_GRP);
-	}
 
+	omap3evm_dsi_power_up();
 	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x80,
 			TWL4030_GPIODATA_IN3);
 	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x80,
@@ -388,13 +405,8 @@ static int omap3_evm_panel_enable_dvi(struct omap_display *display)
 
 static void omap3_evm_panel_disable_dvi(struct omap_display *display)
 {
-	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
-				TWL4030_VPLL2_DEDICATED);
-		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
-				TWL4030_VPLL2_DEV_GRP);
-	}
 
+	omap3evm_dsi_power_down();
 	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x00,
 			TWL4030_GPIODATA_IN3);
 	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x00,
@@ -413,6 +425,8 @@ static struct omap_dss_display_config omap3_evm_display_data_dvi = {
 };
 
 static struct omap_dss_board_info omap3_evm_dss_data = {
+	.dsi_power_up = omap3evm_dsi_power_up,
+	.dsi_power_down = omap3evm_dsi_power_down,
 	.num_displays = 3,
 	.displays = {
 		&omap3_evm_display_data,
-- 
1.6.2.4