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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
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