omap: zoom: add fixed regulator device for wlan

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

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
index 6b3984964cc5..f5df9a2b1465 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -16,6 +16,7 @@
 #include <linux/gpio.h>
 #include <linux/i2c/twl.h>
 #include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -27,6 +28,8 @@
 #include "mux.h"
 #include "hsmmc.h"
 
+#define OMAP_ZOOM_WLAN_PMENA_GPIO       (101)
+
 /* Zoom2 has Qwerty keyboard*/
 static int board_keymap[] = {
         KEY(0, 0, KEY_E),
@@ -106,6 +109,11 @@ static struct regulator_consumer_supply zoom_vmmc2_supply = {
         .supply         = "vmmc",
 };
 
+static struct regulator_consumer_supply zoom_vmmc3_supply = {
+        .supply         = "vmmc",
+        .dev_name       = "mmci-omap-hs.2",
+};
+
 /* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
 static struct regulator_init_data zoom_vmmc1 = {
         .constraints = {
@@ -151,6 +159,32 @@ static struct regulator_init_data zoom_vsim = {
         .consumer_supplies      = &zoom_vsim_supply,
 };
 
+static struct regulator_init_data zoom_vmmc3 = {
+        .constraints = {
+                .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+        },
+        .num_consumer_supplies  = 1,
+        .consumer_supplies = &zoom_vmmc3_supply,
+};
+
+static struct fixed_voltage_config zoom_vwlan = {
+        .supply_name            = "vwl1271",
+        .microvolts             = 1800000, /* 1.8V */
+        .gpio                   = OMAP_ZOOM_WLAN_PMENA_GPIO,
+        .startup_delay          = 70000, /* 70msec */
+        .enable_high            = 1,
+        .enabled_at_boot        = 0,
+        .init_data              = &zoom_vmmc3,
+};
+
+static struct platform_device omap_vwlan_device = {
+        .name           = "reg-fixed-voltage",
+        .id             = 1,
+        .dev = {
+                .platform_data  = &zoom_vwlan,
+        },
+};
+
 static struct omap2_hsmmc_info mmc[] __initdata = {
         {
                 .name           = "external",
@@ -280,6 +314,7 @@ static void enable_board_wakeup_source(void)
 void __init zoom_peripherals_init(void)
 {
         omap_i2c_init();
+        platform_device_register(&omap_vwlan_device);
         usb_musb_init(&musb_board_data);
         enable_board_wakeup_source();
 }