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>

diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 9f4f86e73cea0cdcd24f60dbf5bf17d819b4a650..d56bef15d3c5c66c4fb7c2723209a4e5526a73a5 100644 (file)
--- 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();