Fixed regulator is used for SDHI0/2 Vcc.
We should use da9063 driver for Vccq,
but, it doesn't have regulator support at this point.
This patch uses gpio-regulator for it as quick-hack.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
v1 -> v2
- 2/2 become 1/2
- FIXME comment was added
arch/arm/mach-shmobile/board-lager.c | 83 +++++++++++++++++++++++++++++++++-
1 file changed, 82 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index fcf06fd..3d1640f 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -31,7 +31,9 @@
#include <linux/platform_data/rcar-du.h>
#include <linux/platform_device.h>
#include <linux/phy.h>
+#include <linux/regulator/driver.h>
#include <linux/regulator/fixed.h>
+#include <linux/regulator/gpio-regulator.h>
#include <linux/regulator/machine.h>
#include <linux/sh_eth.h>
#include <mach/common.h>
@@ -141,6 +143,71 @@ static struct regulator_consumer_supply fixed3v3_power_consumers[] =
REGULATOR_SUPPLY("vmmc", "sh_mmcif.1"),
};
+/*
+ * SDHI regulator macro
+ *
+ ** FIXME**
+ * Lager board vqmmc is provided via DA9063 PMIC chip,
+ * and we should use ${LINK}/drivers/mfd/da9063-* driver for it.
+ * but, it doesn't have regulator support at this point.
+ * It uses gpio-regulator for vqmmc as quick-hack.
+ */
+#define SDHI_REGULATOR(idx, vdd_pin, vccq_pin) \
+static struct regulator_consumer_supply vcc_sdhi##idx##_consumer = \
+ REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi." #idx); \
+ \
+static struct regulator_init_data vcc_sdhi##idx##_init_data = { \
+ .constraints = { \
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS, \
+ }, \
+ .consumer_supplies = &vcc_sdhi##idx##_consumer, \
+ .num_consumer_supplies = 1, \
+}; \
+ \
+static struct fixed_voltage_config vcc_sdhi##idx##_info = { \
+ .supply_name = "SDHI" #idx "Vcc", \
+ .microvolts = 3300000, \
+ .gpio = vdd_pin, \
+ .enable_high = 1, \
+ .init_data = &vcc_sdhi##idx##_init_data, \
+}; \
+ \
+static struct regulator_consumer_supply vccq_sdhi##idx##_consumer= \
+ REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi." #idx); \
+ \
+static struct regulator_init_data vccq_sdhi##idx##_init_data = { \
+ .constraints = { \
+ .input_uV = 3300000, \
+ .min_uV = 1800000, \
+ .max_uV = 3300000, \
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | \
+ REGULATOR_CHANGE_STATUS, \
+ }, \
+ .consumer_supplies = &vccq_sdhi##idx##_consumer, \
+ .num_consumer_supplies = 1, \
+}; \
+ \
+static struct gpio vccq_sdhi##idx##_gpio = \
+ { vccq_pin, GPIOF_OUT_INIT_HIGH, "vccq-sdhi" #idx }; \
+ \
+static struct gpio_regulator_state vccq_sdhi##idx##_states[] = { \
+ { .value = 1800000, .gpios = 0 }, \
+ { .value = 3300000, .gpios = 1 }, \
+}; \
+ \
+static struct gpio_regulator_config vccq_sdhi##idx##_info = { \
+ .supply_name = "vqmmc", \
+ .gpios = &vccq_sdhi##idx##_gpio, \
+ .nr_gpios = 1, \
+ .states = vccq_sdhi##idx##_states, \
+ .nr_states = ARRAY_SIZE(vccq_sdhi##idx##_states), \
+ .type = REGULATOR_VOLTAGE, \
+ .init_data = &vccq_sdhi##idx##_init_data, \
+};
+
+SDHI_REGULATOR(0, RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 29));
+SDHI_REGULATOR(2, RCAR_GP_PIN(5, 25), RCAR_GP_PIN(5, 30));
+
/* MMCIF */
static const struct sh_mmcif_plat_data mmcif1_pdata __initconst = {
.caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
@@ -198,6 +265,9 @@ static const struct pinctrl_map lager_pinctrl_map[] = {
static void __init lager_add_standard_devices(void)
{
+ int fixed_regulator_idx = 0;
+ int gpio_regulator_idx = 0;
+
r8a7790_clock_init();
pinctrl_register_mappings(lager_pinctrl_map,
@@ -211,7 +281,8 @@ static void __init lager_add_standard_devices(void)
platform_device_register_data(&platform_bus, "gpio-keys", -1,
&lager_keys_pdata,
sizeof(lager_keys_pdata));
- regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
+ regulator_register_always_on(fixed_regulator_idx++,
+ "fixed-3.3V", fixed3v3_power_consumers,
ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
platform_device_register_resndata(&platform_bus, "sh_mmcif", 1,
mmcif1_resources, ARRAY_SIZE(mmcif1_resources),
@@ -223,6 +294,16 @@ static void __init lager_add_standard_devices(void)
ðer_pdata, sizeof(ether_pdata));
lager_add_du_device();
+
+ platform_device_register_data(&platform_bus, "reg-fixed-voltage", fixed_regulator_idx++,
+ &vcc_sdhi0_info, sizeof(struct fixed_voltage_config));
+ platform_device_register_data(&platform_bus, "reg-fixed-voltage", fixed_regulator_idx++,
+ &vcc_sdhi2_info, sizeof(struct fixed_voltage_config));
+
+ platform_device_register_data(&platform_bus, "gpio-regulator", gpio_regulator_idx++,
+ &vccq_sdhi0_info, sizeof(struct gpio_regulator_config));
+ platform_device_register_data(&platform_bus, "gpio-regulator", gpio_regulator_idx++,
+ &vccq_sdhi2_info, sizeof(struct gpio_regulator_config));
}
/*
--
1.7.9.5
--
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