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>
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index e687918..30ad59f 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 @@
/* 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 @@
.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 @@
.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 @@
&s3c_device_fb,
&s5p_device_onenand,
&goni_i2c_gpio_pmic,
+ &mmc2_fixed_voltage,
&goni_device_gpiokeys,
&s5p_device_fimc0,
&s5p_device_fimc1,