ARM: S5PV210: Add Support for MMC regulators on GONI board

Add required platform definitions for MMC power regulators on Samsung
Goni board. GPIO pin GONI_EXT_FLASH_EN has been transferred from machine
startup code to fixed voltage regulator.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 37 insertions, 3 deletions

diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index e68791855d22..30ad59f6970f 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -16,6 +16,7 @@
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 #include <linux/mfd/max8998.h>
+#include <linux/regulator/fixed.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/gpio.h>
@@ -137,6 +138,10 @@ static struct samsung_keypad_platdata keypad_data __initdata = {
 /* MAX8998 regulators */
 #if defined(CONFIG_REGULATOR_MAX8998) || defined(CONFIG_REGULATOR_MAX8998_MODULE)
 
+static struct regulator_consumer_supply goni_ldo5_consumers[] = {
+        REGULATOR_SUPPLY("vmmc", "s3c-sdhci.0"),
+};
+
 static struct regulator_init_data goni_ldo2_data = {
         .constraints    = {
                 .name           = "VALIVE_1.1V",
@@ -176,6 +181,8 @@ static struct regulator_init_data goni_ldo5_data = {
                 .max_uV         = 2800000,
                 .apply_uV       = 1,
         },
+        .num_consumer_supplies = ARRAY_SIZE(goni_ldo5_consumers),
+        .consumer_supplies = goni_ldo5_consumers,
 };
 
 static struct regulator_init_data goni_ldo6_data = {
@@ -467,11 +474,37 @@ static struct s3c_sdhci_platdata goni_hsmmc2_data __initdata = {
         .ext_cd_gpio_invert     = 1,
 };
 
+static struct regulator_consumer_supply mmc2_supplies[] = {
+        REGULATOR_SUPPLY("vmmc", "s3c-sdhci.2"),
+};
+
+static struct regulator_init_data mmc2_fixed_voltage_init_data = {
+        .constraints            = {
+                .name           = "V_TF_2.8V",
+                .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+        },
+        .num_consumer_supplies  = ARRAY_SIZE(mmc2_supplies),
+        .consumer_supplies      = mmc2_supplies,
+};
+
+static struct fixed_voltage_config mmc2_fixed_voltage_config = {
+        .supply_name            = "EXT_FLASH_EN",
+        .microvolts             = 2800000,
+        .gpio                   = GONI_EXT_FLASH_EN,
+        .enable_high            = true,
+        .init_data              = &mmc2_fixed_voltage_init_data,
+};
+
+static struct platform_device mmc2_fixed_voltage = {
+        .name           = "reg-fixed-voltage",
+        .id             = 2,
+        .dev            = {
+                .platform_data  = &mmc2_fixed_voltage_config,
+        },
+};
+
 static void goni_setup_sdhci(void)
 {
-        gpio_request(GONI_EXT_FLASH_EN, "FLASH_EN");
-        gpio_direction_output(GONI_EXT_FLASH_EN, 1);
-
         s3c_sdhci0_set_platdata(&goni_hsmmc0_data);
         s3c_sdhci1_set_platdata(&goni_hsmmc1_data);
         s3c_sdhci2_set_platdata(&goni_hsmmc2_data);
@@ -481,6 +514,7 @@ static struct platform_device *goni_devices[] __initdata = {
         &s3c_device_fb,
         &s5p_device_onenand,
         &goni_i2c_gpio_pmic,
+        &mmc2_fixed_voltage,
         &goni_device_gpiokeys,
         &s5p_device_fimc0,
         &s5p_device_fimc1,