SD/MMC driver requires an optional vmmc regulator. Enable this regulator
for Origen board.
Signed-off-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
---
arch/arm/mach-exynos/mach-origen.c | 36 ++++++++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index 5e34b9c..4d290e8 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -20,6 +20,7 @@
#include <linux/gpio_keys.h>
#include <linux/i2c.h>
#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
#include <linux/mfd/max8997.h>
#include <linux/lcd.h>
#include <linux/rfkill-gpio.h>
@@ -65,6 +66,10 @@
S5PV210_UFCON_TXTRIG4 | \
S5PV210_UFCON_RXTRIG4)
+enum fixed_regulator_id {
+ FIXED_REG_ID_MMC = 0,
+};
+
static struct s3c2410_uartcfg origen_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
@@ -475,6 +480,36 @@ static struct i2c_board_info i2c0_devs[] __initdata = {
},
};
+static struct regulator_consumer_supply mmc_supplies[] = {
+ REGULATOR_SUPPLY("vmmc", "exynos4-sdhci.0"),
+ REGULATOR_SUPPLY("vmmc", "exynos4-sdhci.2"),
+};
+
+static struct regulator_init_data mmc_fixed_voltage_init_data = {
+ .constraints = {
+ .name = "VMEM_VDD_2.8V",
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(mmc_supplies),
+ .consumer_supplies = mmc_supplies,
+};
+
+static struct fixed_voltage_config mmc_fixed_voltage_config = {
+ .supply_name = "MMC_POWER_EN",
+ .microvolts = 2800000,
+ .gpio = EXYNOS4_GPX1(1),
+ .enable_high = true,
+ .init_data = &mmc_fixed_voltage_init_data,
+};
+
+static struct platform_device mmc_fixed_voltage = {
+ .name = "reg-fixed-voltage",
+ .id = FIXED_REG_ID_MMC,
+ .dev = {
+ .platform_data = &mmc_fixed_voltage_config,
+ },
+};
+
static struct s3c_sdhci_platdata origen_hsmmc0_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_INTERNAL,
};
@@ -690,6 +725,7 @@ static struct platform_device origen_device_bluetooth = {
};
static struct platform_device *origen_devices[] __initdata = {
+ &mmc_fixed_voltage,
&s3c_device_hsmmc2,
&s3c_device_hsmmc0,
&s3c_device_i2c0,
--
1.7.4.1
--
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