Pandora Sourcecodes - openembedded.git/blob

   1 From b06406f3e5c3958f69185314c969f7c1a3265f71 Mon Sep 17 00:00:00 2001
   2 From: Hardik Shah <hardik.shah@ti.com>
   3 Date: Thu, 14 May 2009 15:04:17 +0530
   4 Subject: [PATCH 69/69] DSS2: OMAP3EVM: Added DSI powerup and powerdown functions
   5
   6 Copied fom 3430sdp implementation.
   7
   8 Signed-off-by: Hardik Shah <hardik.shah@ti.com>
   9 ---
  10  arch/arm/mach-omap2/board-omap3evm.c |   62 +++++++++++++++++++++-------------
  11  1 files changed, 38 insertions(+), 24 deletions(-)
  12
  13 diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
  14 index 6f5a866..57c4fc7 100644
  15 --- a/arch/arm/mach-omap2/board-omap3evm.c
  16 +++ b/arch/arm/mach-omap2/board-omap3evm.c
  17 @@ -237,6 +237,38 @@ static int __init omap3_evm_i2c_init(void)
  18  static int lcd_enabled;
  19  static int dvi_enabled;
  20
  21 +static void enable_vpll2(int enable)
  22 +{
  23 +       u8 ded_val, grp_val;
  24 +
  25 +       if (enable) {
  26 +               ded_val = ENABLE_VPLL2_DEDICATED;
  27 +               grp_val = ENABLE_VPLL2_DEV_GRP;
  28 +       } else {
  29 +               ded_val = 0;
  30 +               grp_val = 0;
  31 +       }
  32 +
  33 +       twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
  34 +                       ded_val, TWL4030_VPLL2_DEDICATED);
  35 +       twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
  36 +                       grp_val, TWL4030_VPLL2_DEV_GRP);
  37 +}
  38 +
  39 +static int omap3evm_dsi_power_up(void)
  40 +{
  41 +       if (omap_rev() > OMAP3430_REV_ES1_0)
  42 +               enable_vpll2(1);
  43 +       return 0;
  44 +}
  45 +
  46 +static void omap3evm_dsi_power_down(void)
  47 +{
  48 +       if (omap_rev() > OMAP3430_REV_ES1_0)
  49 +               enable_vpll2(0);
  50 +}
  51 +
  52 +
  53  static void __init omap3_evm_display_init(void)
  54  {
  55         int r;
  56 @@ -306,12 +338,7 @@ static int omap3_evm_panel_enable_lcd(struct omap_display *display)
  57                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
  58                 return -EINVAL;
  59         }
  60 -       if (omap_rev() > OMAP3430_REV_ES1_0) {
  61 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
  62 -                       ENABLE_VPLL2_DEDICATED, TWL4030_VPLL2_DEDICATED);
  63 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
  64 -                       ENABLE_VPLL2_DEV_GRP, TWL4030_VPLL2_DEV_GRP);
  65 -       }
  66 +       omap3evm_dsi_power_up();
  67         gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0);
  68         lcd_enabled = 1;
  69         return 0;
  70 @@ -319,12 +346,7 @@ static int omap3_evm_panel_enable_lcd(struct omap_display *display)
  71
  72  static void omap3_evm_panel_disable_lcd(struct omap_display *display)
  73  {
  74 -       if (omap_rev() > OMAP3430_REV_ES1_0) {
  75 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
  76 -                               TWL4030_VPLL2_DEDICATED);
  77 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
  78 -                               TWL4030_VPLL2_DEV_GRP);
  79 -       }
  80 +       omap3evm_dsi_power_down();
  81         gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1);
  82         lcd_enabled = 0;
  83  }
  84 @@ -370,13 +392,8 @@ static int omap3_evm_panel_enable_dvi(struct omap_display *display)
  85                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
  86                 return -EINVAL;
  87         }
  88 -       if (omap_rev() > OMAP3430_REV_ES1_0) {
  89 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
  90 -                       ENABLE_VPLL2_DEDICATED, TWL4030_VPLL2_DEDICATED);
  91 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
  92 -                       ENABLE_VPLL2_DEV_GRP, TWL4030_VPLL2_DEV_GRP);
  93 -       }
  94
  95 +       omap3evm_dsi_power_up();
  96         twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x80,
  97                         TWL4030_GPIODATA_IN3);
  98         twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x80,
  99 @@ -388,13 +405,8 @@ static int omap3_evm_panel_enable_dvi(struct omap_display *display)
 100
 101  static void omap3_evm_panel_disable_dvi(struct omap_display *display)
 102  {
 103 -       if (omap_rev() > OMAP3430_REV_ES1_0) {
 104 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
 105 -                               TWL4030_VPLL2_DEDICATED);
 106 -               twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
 107 -                               TWL4030_VPLL2_DEV_GRP);
 108 -       }
 109
 110 +       omap3evm_dsi_power_down();
 111         twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x00,
 112                         TWL4030_GPIODATA_IN3);
 113         twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x00,
 114 @@ -413,6 +425,8 @@ static struct omap_dss_display_config omap3_evm_display_data_dvi = {
 115  };
 116
 117  static struct omap_dss_board_info omap3_evm_dss_data = {
 118 +       .dsi_power_up = omap3evm_dsi_power_up,
 119 +       .dsi_power_down = omap3evm_dsi_power_down,
 120         .num_displays = 3,
 121         .displays = {
 122                 &omap3_evm_display_data,
 123 --
 124 1.6.2.4
 125