IGEPv2: Added WIFI support

Enabled VMMC2 LDO voltage regulator on TWL4030.
Added GPIO's (power down and reset) for WIFI chip.

Signed-off-by: Anders Hedlund <anders.j.hedlund@gmail.com>
Signed-off-by: Jonas Zetterberg <jozz@jozz.se>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 3d1fde79ab457b1f31eecf883710c4ab5ecb3d29..4a5d663e28699255f6dc7e117261dd8482f561c2 100644 (file)
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -42,6 +42,8 @@
 #define IGEP2_GPIO_LED0_GREEN  27
 #define IGEP2_GPIO_LED1_RED    28
 #define IGEP2_GPIO_DVI_PUP     170
+#define IGEP2_GPIO_WIFI_NPD    94
+#define IGEP2_GPIO_WIFI_NRESET         95
 
 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
        defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
@@ -209,6 +211,10 @@ static struct regulator_consumer_supply igep2_vmmc1_supply = {
        .supply         = "vmmc",
 };
 
+static struct regulator_consumer_supply igep2_vmmc2_supply = {
+       .supply         = "vmmc",
+};
+
 /* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
 static struct regulator_init_data igep2_vmmc1 = {
        .constraints = {
@@ -224,6 +230,21 @@ static struct regulator_init_data igep2_vmmc1 = {
        .consumer_supplies      = &igep2_vmmc1_supply,
 };
 
+/* VMMC2 for OMAP VDD_MMC2 (i/o) and MMC2 WIFI */
+static struct regulator_init_data igep2_vmmc2 = {
+       .constraints = {
+               .min_uV                 = 1850000,
+               .max_uV                 = 3150000,
+               .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                       | REGULATOR_MODE_STANDBY,
+               .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
+                                       | REGULATOR_CHANGE_MODE
+                                       | REGULATOR_CHANGE_STATUS,
+       },
+       .num_consumer_supplies  = 1,
+       .consumer_supplies      = &igep2_vmmc2_supply,
+};
+
 static struct omap2_hsmmc_info mmc[] = {
        {
                .mmc            = 1,
@@ -251,6 +272,7 @@ static int igep2_twl_gpio_setup(struct device *dev,
         * regulators will be set up only *after* we return.
        */
        igep2_vmmc1_supply.dev = mmc[0].dev;
+       igep2_vmmc2_supply.dev = mmc[1].dev;
 
        return 0;
 };
@@ -364,6 +386,7 @@ static struct twl4030_platform_data igep2_twldata = {
        .codec          = &igep2_codec_data,
        .gpio           = &igep2_gpio_data,
        .vmmc1          = &igep2_vmmc1,
+       .vmmc2          = &igep2_vmmc2,
        .vpll2          = &igep2_vpll2,
 
 };
@@ -440,6 +463,23 @@ static void __init igep2_init(void)
                gpio_set_value(IGEP2_GPIO_LED1_RED, 0);
        } else
                pr_warning("IGEP v2: Could not obtain gpio GPIO_LED1_RED\n");
+
+       /* GPIO W-LAN + Bluetooth combo module */
+       if ((gpio_request(IGEP2_GPIO_WIFI_NPD, "GPIO_WIFI_NPD") == 0) &&
+           (gpio_direction_output(IGEP2_GPIO_WIFI_NPD, 1) == 0)) {
+               gpio_export(IGEP2_GPIO_WIFI_NPD, 0);
+/*             gpio_set_value(IGEP2_GPIO_WIFI_NPD, 0); */
+       } else
+               pr_warning("IGEP v2: Could not obtain gpio GPIO_WIFI_NPD\n");
+
+       if ((gpio_request(IGEP2_GPIO_WIFI_NRESET, "GPIO_WIFI_NRESET") == 0) &&
+           (gpio_direction_output(IGEP2_GPIO_WIFI_NRESET, 1) == 0)) {
+               gpio_export(IGEP2_GPIO_WIFI_NRESET, 0);
+               gpio_set_value(IGEP2_GPIO_WIFI_NRESET, 0);
+               udelay(10);
+               gpio_set_value(IGEP2_GPIO_WIFI_NRESET, 1);
+       } else
+               pr_warning("IGEP v2: Could not obtain gpio GPIO_WIFI_NRESET\n");
 }
 
 static void __init igep2_map_io(void)