1 files changed, 45 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
index c11fd47aec5d..6ea9808b8868 100644
--- a/arch/arm/mach-at91/board-sam9g20ek.c
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -27,6 +27,9 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/clk.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/consumer.h>
 
 #include <mach/hardware.h>
 #include <asm/setup.h>
@@ -269,6 +272,46 @@ static void __init ek_add_device_buttons(void)
 static void __init ek_add_device_buttons(void) {}
 #endif
 
+#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
+static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
+        REGULATOR_SUPPLY("AVDD", "0-001b"),
+        REGULATOR_SUPPLY("HPVDD", "0-001b"),
+        REGULATOR_SUPPLY("DBVDD", "0-001b"),
+        REGULATOR_SUPPLY("DCVDD", "0-001b"),
+};
+
+static struct regulator_init_data ek_avdd_reg_init_data = {
+        .constraints    = {
+                .name   = "3V3",
+                .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+        },
+        .consumer_supplies = ek_audio_consumer_supplies,
+        .num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
+};
+
+static struct fixed_voltage_config ek_vdd_pdata = {
+        .supply_name    = "board-3V3",
+        .microvolts     = 3300000,
+        .gpio           = -EINVAL,
+        .enabled_at_boot = 0,
+        .init_data      = &ek_avdd_reg_init_data,
+};
+static struct platform_device ek_voltage_regulator = {
+        .name           = "reg-fixed-voltage",
+        .id             = -1,
+        .num_resources  = 0,
+        .dev            = {
+                .platform_data  = &ek_vdd_pdata,
+        },
+};
+static void __init ek_add_regulators(void)
+{
+        platform_device_register(&ek_voltage_regulator);
+}
+#else
+static void __init ek_add_regulators(void) {}
+#endif
+
 
 static struct i2c_board_info __initdata ek_i2c_devices[] = {
         {
@@ -294,6 +337,8 @@ static void __init ek_board_init(void)
         ek_add_device_nand();
         /* Ethernet */
         at91_add_device_eth(&ek_macb_data);
+        /* Regulators */
+        ek_add_regulators();
         /* MMC */
         at91_add_device_mmc(0, &ek_mmc_data);
         /* I2C */