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ARM: S5PV210: Add MAX8998 PMIC support for GONI
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This patch adds required platform definitions for MAX8998 PMIC driver. Power
regulators for LDO and BUCK outputs has been defined as well as a simple
gpio-keys button for power key (to enable wakeup functionality with
external interrupt).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[broonie@opensource.wolfsonmicro.com: For the regulator API usage]
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
[kgene.kim@samsung.com: minor title fix]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Marek Szyprowski authored and Kukjin Kim committed Aug 5, 2010
1 parent a1660c1 commit ba149f3
Showing 1 changed file with 324 additions and 0 deletions.
324 changes: 324 additions & 0 deletions arch/arm/mach-s5pv210/mach-goni.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,12 @@
#include <linux/init.h>
#include <linux/serial_core.h>
#include <linux/fb.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/mfd/max8998.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/gpio.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
Expand All @@ -23,6 +29,7 @@
#include <mach/regs-clock.h>
#include <mach/regs-fb.h>

#include <plat/gpio-cfg.h>
#include <plat/regs-serial.h>
#include <plat/s5pv210.h>
#include <plat/devs.h>
Expand Down Expand Up @@ -103,9 +110,322 @@ static struct s3c_fb_platdata goni_lcd_pdata __initdata = {
.setup_gpio = s5pv210_fb_gpio_setup_24bpp,
};

/* MAX8998 regulators */
#if defined(CONFIG_REGULATOR_MAX8998) || defined(CONFIG_REGULATOR_MAX8998_MODULE)

static struct regulator_init_data goni_ldo2_data = {
.constraints = {
.name = "VALIVE_1.1V",
.min_uV = 1100000,
.max_uV = 1100000,
.apply_uV = 1,
.always_on = 1,
.state_mem = {
.enabled = 1,
},
},
};

static struct regulator_init_data goni_ldo3_data = {
.constraints = {
.name = "VUSB/MIPI_1.1V",
.min_uV = 1100000,
.max_uV = 1100000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo4_data = {
.constraints = {
.name = "VDAC_3.3V",
.min_uV = 3300000,
.max_uV = 3300000,
.apply_uV = 1,
},
};

static struct regulator_init_data goni_ldo5_data = {
.constraints = {
.name = "VTF_2.8V",
.min_uV = 2800000,
.max_uV = 2800000,
.apply_uV = 1,
},
};

static struct regulator_init_data goni_ldo6_data = {
.constraints = {
.name = "VCC_3.3V",
.min_uV = 3300000,
.max_uV = 3300000,
.apply_uV = 1,
},
};

static struct regulator_init_data goni_ldo7_data = {
.constraints = {
.name = "VLCD_1.8V",
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo8_data = {
.constraints = {
.name = "VUSB/VADC_3.3V",
.min_uV = 3300000,
.max_uV = 3300000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo9_data = {
.constraints = {
.name = "VCC/VCAM_2.8V",
.min_uV = 2800000,
.max_uV = 2800000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo10_data = {
.constraints = {
.name = "VPLL_1.1V",
.min_uV = 1100000,
.max_uV = 1100000,
.apply_uV = 1,
.boot_on = 1,
},
};

static struct regulator_init_data goni_ldo11_data = {
.constraints = {
.name = "CAM_IO_2.8V",
.min_uV = 2800000,
.max_uV = 2800000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo12_data = {
.constraints = {
.name = "CAM_ISP_1.2V",
.min_uV = 1200000,
.max_uV = 1200000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo13_data = {
.constraints = {
.name = "CAM_A_2.8V",
.min_uV = 2800000,
.max_uV = 2800000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo14_data = {
.constraints = {
.name = "CAM_CIF_1.8V",
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo15_data = {
.constraints = {
.name = "CAM_AF_3.3V",
.min_uV = 3300000,
.max_uV = 3300000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo16_data = {
.constraints = {
.name = "VMIPI_1.8V",
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct regulator_init_data goni_ldo17_data = {
.constraints = {
.name = "VCC_3.0V_LCD",
.min_uV = 3000000,
.max_uV = 3000000,
.apply_uV = 1,
.always_on = 1,
},
};

/* BUCK */
static struct regulator_consumer_supply buck1_consumer[] = {
{ .supply = "vddarm", },
};

static struct regulator_consumer_supply buck2_consumer[] = {
{ .supply = "vddint", },
};

static struct regulator_init_data goni_buck1_data = {
.constraints = {
.name = "VARM_1.2V",
.min_uV = 1200000,
.max_uV = 1200000,
.apply_uV = 1,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(buck1_consumer),
.consumer_supplies = buck1_consumer,
};

static struct regulator_init_data goni_buck2_data = {
.constraints = {
.name = "VINT_1.2V",
.min_uV = 1200000,
.max_uV = 1200000,
.apply_uV = 1,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(buck2_consumer),
.consumer_supplies = buck2_consumer,
};

static struct regulator_init_data goni_buck3_data = {
.constraints = {
.name = "VCC_1.8V",
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = 1,
.state_mem = {
.enabled = 1,
},
},
};

static struct regulator_init_data goni_buck4_data = {
.constraints = {
.name = "CAM_CORE_1.2V",
.min_uV = 1200000,
.max_uV = 1200000,
.apply_uV = 1,
.always_on = 1,
},
};

static struct max8998_regulator_data goni_regulators[] = {
{ MAX8998_LDO2, &goni_ldo2_data },
{ MAX8998_LDO3, &goni_ldo3_data },
{ MAX8998_LDO4, &goni_ldo4_data },
{ MAX8998_LDO5, &goni_ldo5_data },
{ MAX8998_LDO6, &goni_ldo6_data },
{ MAX8998_LDO7, &goni_ldo7_data },
{ MAX8998_LDO8, &goni_ldo8_data },
{ MAX8998_LDO9, &goni_ldo9_data },
{ MAX8998_LDO10, &goni_ldo10_data },
{ MAX8998_LDO11, &goni_ldo11_data },
{ MAX8998_LDO12, &goni_ldo12_data },
{ MAX8998_LDO13, &goni_ldo13_data },
{ MAX8998_LDO14, &goni_ldo14_data },
{ MAX8998_LDO15, &goni_ldo15_data },
{ MAX8998_LDO16, &goni_ldo16_data },
{ MAX8998_LDO17, &goni_ldo17_data },
{ MAX8998_BUCK1, &goni_buck1_data },
{ MAX8998_BUCK2, &goni_buck2_data },
{ MAX8998_BUCK3, &goni_buck3_data },
{ MAX8998_BUCK4, &goni_buck4_data },
};

static struct max8998_platform_data goni_max8998_pdata = {
.num_regulators = ARRAY_SIZE(goni_regulators),
.regulators = goni_regulators,
};
#endif

/* GPIO I2C PMIC */
#define AP_I2C_GPIO_PMIC_BUS_4 4
static struct i2c_gpio_platform_data goni_i2c_gpio_pmic_data = {
.sda_pin = S5PV210_GPJ4(0), /* XMSMCSN */
.scl_pin = S5PV210_GPJ4(3), /* XMSMIRQN */
};

static struct platform_device goni_i2c_gpio_pmic = {
.name = "i2c-gpio",
.id = AP_I2C_GPIO_PMIC_BUS_4,
.dev = {
.platform_data = &goni_i2c_gpio_pmic_data,
},
};

static struct i2c_board_info i2c_gpio_pmic_devs[] __initdata = {
#if defined(CONFIG_REGULATOR_MAX8998) || defined(CONFIG_REGULATOR_MAX8998_MODULE)
{
/* 0xCC when SRAD = 0 */
I2C_BOARD_INFO("max8998", 0xCC >> 1),
.platform_data = &goni_max8998_pdata,
},
#endif
};

/* PMIC Power button */
static struct gpio_keys_button goni_gpio_keys_table[] = {
{
.code = KEY_POWER,
.gpio = S5PV210_GPH2(6),
.desc = "gpio-keys: KEY_POWER",
.type = EV_KEY,
.active_low = 1,
.wakeup = 1,
.debounce_interval = 1,
},
};

static struct gpio_keys_platform_data goni_gpio_keys_data = {
.buttons = goni_gpio_keys_table,
.nbuttons = ARRAY_SIZE(goni_gpio_keys_table),
};

static struct platform_device goni_device_gpiokeys = {
.name = "gpio-keys",
.dev = {
.platform_data = &goni_gpio_keys_data,
},
};

static void __init goni_pmic_init(void)
{
/* AP_PMIC_IRQ: EINT7 */
s3c_gpio_cfgpin(S5PV210_GPH0(7), S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(S5PV210_GPH0(7), S3C_GPIO_PULL_UP);

/* nPower: EINT22 */
s3c_gpio_cfgpin(S5PV210_GPH2(6), S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(S5PV210_GPH2(6), S3C_GPIO_PULL_UP);
}


static struct platform_device *goni_devices[] __initdata = {
&s3c_device_fb,
&s5pc110_device_onenand,
&goni_i2c_gpio_pmic,
&goni_device_gpiokeys,
};

static void __init goni_map_io(void)
Expand All @@ -117,6 +437,10 @@ static void __init goni_map_io(void)

static void __init goni_machine_init(void)
{
/* PMIC */
goni_pmic_init();
i2c_register_board_info(AP_I2C_GPIO_PMIC_BUS_4, i2c_gpio_pmic_devs,
ARRAY_SIZE(i2c_gpio_pmic_devs));
/* FB */
s3c_fb_set_platdata(&goni_lcd_pdata);

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