omap: panda: add fixed regulator device for wlan

Add a fixed regulator vmmc device to enable power control
of the wl1271 wlan device.

Based on the patch for zoom by Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Panduranga Mallireddy <panduranga_mallireddy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 9f4f86e73cea..d56bef15d3c5 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -26,6 +26,7 @@
 #include <linux/usb/otg.h>
 #include <linux/i2c/twl.h>
 #include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <mach/hardware.h>
 #include <mach/omap4-common.h>
@@ -45,6 +46,7 @@
 
 #define GPIO_HUB_POWER          1
 #define GPIO_HUB_NRESET         62
+#define GPIO_WIFI_PMENA         43
 
 static struct gpio_led gpio_leds[] = {
         {
@@ -171,6 +173,37 @@ static struct regulator_consumer_supply omap4_panda_vmmc_supply[] = {
         },
 };
 
+static struct regulator_consumer_supply omap4_panda_vmmc5_supply = {
+        .supply = "vmmc",
+        .dev_name = "mmci-omap-hs.4",
+};
+
+static struct regulator_init_data panda_vmmc5 = {
+        .constraints = {
+                .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+        },
+        .num_consumer_supplies = 1,
+        .consumer_supplies = &omap4_panda_vmmc5_supply,
+};
+
+static struct fixed_voltage_config panda_vwlan = {
+        .supply_name = "vwl1271",
+        .microvolts = 1800000, /* 1.8V */
+        .gpio = GPIO_WIFI_PMENA,
+        .startup_delay = 70000, /* 70msec */
+        .enable_high = 1,
+        .enabled_at_boot = 0,
+        .init_data = &panda_vmmc5,
+};
+
+static struct platform_device omap_vwlan_device = {
+        .name           = "reg-fixed-voltage",
+        .id             = 1,
+        .dev = {
+                .platform_data = &panda_vwlan,
+        },
+};
+
 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
 {
         int ret = 0;
@@ -416,6 +449,7 @@ static void __init omap4_panda_init(void)
 
         omap4_panda_i2c_init();
         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
+        platform_device_register(&omap_vwlan_device);
         omap_serial_init();
         omap4_twl6030_hsmmc_init(mmc);
         omap4_ehci_init();