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ARM: S5PV210: Add voltage consumer of WM8994 to the regulator framework
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This patch add cose related to regulator. To control powre consumeption
have registered the voltage consumer of WM8994 to the regulator framework.

Additionally, I explain the constraints of the regulator of WM8994 codec.
All these consumer supply of WM8994 codec connected the regulator(VCC_1.8V)
on a circuit diagram. "VCC_1.8V" regulator is always enabled, because it is
used to many devices on Goni/Aquila board. This is required especially
when there are many devices physically attached to "VCC_1.8V" and some of
they did not "register" as consumers to "VCC_1.8V". "VCC_1.8V" might be
turned off by those who are registered while "unregistered" are still active

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Chanwoo Choi authored and Kukjin Kim committed Oct 25, 2010
1 parent 6c29e71 commit 8084979
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118 changes: 118 additions & 0 deletions arch/arm/mach-s5pv210/mach-aquila.c
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,8 @@
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/mfd/max8998.h>
#include <linux/mfd/wm8994/pdata.h>
#include <linux/regulator/fixed.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/gpio.h>
Expand Down Expand Up @@ -379,6 +381,119 @@ static struct max8998_platform_data aquila_max8998_pdata = {
};
#endif

static struct regulator_consumer_supply wm8994_fixed_voltage0_supplies[] = {
{
.dev_name = "5-001a",
.supply = "DBVDD",
}, {
.dev_name = "5-001a",
.supply = "AVDD2",
}, {
.dev_name = "5-001a",
.supply = "CPVDD",
},
};

static struct regulator_consumer_supply wm8994_fixed_voltage1_supplies[] = {
{
.dev_name = "5-001a",
.supply = "SPKVDD1",
}, {
.dev_name = "5-001a",
.supply = "SPKVDD2",
},
};

static struct regulator_init_data wm8994_fixed_voltage0_init_data = {
.constraints = {
.always_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(wm8994_fixed_voltage0_supplies),
.consumer_supplies = wm8994_fixed_voltage0_supplies,
};

static struct regulator_init_data wm8994_fixed_voltage1_init_data = {
.constraints = {
.always_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(wm8994_fixed_voltage1_supplies),
.consumer_supplies = wm8994_fixed_voltage1_supplies,
};

static struct fixed_voltage_config wm8994_fixed_voltage0_config = {
.supply_name = "VCC_1.8V_PDA",
.microvolts = 1800000,
.gpio = -EINVAL,
.init_data = &wm8994_fixed_voltage0_init_data,
};

static struct fixed_voltage_config wm8994_fixed_voltage1_config = {
.supply_name = "V_BAT",
.microvolts = 3700000,
.gpio = -EINVAL,
.init_data = &wm8994_fixed_voltage1_init_data,
};

static struct platform_device wm8994_fixed_voltage0 = {
.name = "reg-fixed-voltage",
.id = 0,
.dev = {
.platform_data = &wm8994_fixed_voltage0_config,
},
};

static struct platform_device wm8994_fixed_voltage1 = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &wm8994_fixed_voltage1_config,
},
};

static struct regulator_consumer_supply wm8994_avdd1_supply = {
.dev_name = "5-001a",
.supply = "AVDD1",
};

static struct regulator_consumer_supply wm8994_dcvdd_supply = {
.dev_name = "5-001a",
.supply = "DCVDD",
};

static struct regulator_init_data wm8994_ldo1_data = {
.constraints = {
.name = "AVDD1_3.0V",
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &wm8994_avdd1_supply,
};

static struct regulator_init_data wm8994_ldo2_data = {
.constraints = {
.name = "DCVDD_1.0V",
},
.num_consumer_supplies = 1,
.consumer_supplies = &wm8994_dcvdd_supply,
};

static struct wm8994_pdata wm8994_platform_data = {
/* configure gpio1 function: 0x0001(Logic level input/output) */
.gpio_defaults[0] = 0x0001,
/* configure gpio3/4/5/7 function for AIF2 voice */
.gpio_defaults[2] = 0x8100,
.gpio_defaults[3] = 0x8100,
.gpio_defaults[4] = 0x8100,
.gpio_defaults[6] = 0x0100,
/* configure gpio8/9/10/11 function for AIF3 BT */
.gpio_defaults[7] = 0x8100,
.gpio_defaults[8] = 0x0100,
.gpio_defaults[9] = 0x0100,
.gpio_defaults[10] = 0x0100,
.ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */
.ldo[1] = { 0, NULL, &wm8994_ldo2_data },
};

/* GPIO I2C PMIC */
#define AP_I2C_GPIO_PMIC_BUS_4 4
static struct i2c_gpio_platform_data aquila_i2c_gpio_pmic_data = {
Expand Down Expand Up @@ -423,6 +538,7 @@ static struct i2c_board_info i2c_gpio5_devs[] __initdata = {
{
/* CS/ADDR = low 0x34 (FYI: high = 0x36) */
I2C_BOARD_INFO("wm8994", 0x1a),
.platform_data = &wm8994_platform_data,
},
};

Expand Down Expand Up @@ -508,6 +624,8 @@ static struct platform_device *aquila_devices[] __initdata = {
&s5p_device_fimc1,
&s5p_device_fimc2,
&s5pv210_device_iis0,
&wm8994_fixed_voltage0,
&wm8994_fixed_voltage1,
};

static void __init aquila_sound_init(void)
Expand Down
117 changes: 117 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 @@ -17,6 +17,7 @@
#include <linux/i2c-gpio.h>
#include <linux/i2c/qt602240_ts.h>
#include <linux/mfd/max8998.h>
#include <linux/mfd/wm8994/pdata.h>
#include <linux/regulator/fixed.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
Expand Down Expand Up @@ -520,6 +521,119 @@ static struct max8998_platform_data goni_max8998_pdata = {
};
#endif

static struct regulator_consumer_supply wm8994_fixed_voltage0_supplies[] = {
{
.dev_name = "5-001a",
.supply = "DBVDD",
}, {
.dev_name = "5-001a",
.supply = "AVDD2",
}, {
.dev_name = "5-001a",
.supply = "CPVDD",
},
};

static struct regulator_consumer_supply wm8994_fixed_voltage1_supplies[] = {
{
.dev_name = "5-001a",
.supply = "SPKVDD1",
}, {
.dev_name = "5-001a",
.supply = "SPKVDD2",
},
};

static struct regulator_init_data wm8994_fixed_voltage0_init_data = {
.constraints = {
.always_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(wm8994_fixed_voltage0_supplies),
.consumer_supplies = wm8994_fixed_voltage0_supplies,
};

static struct regulator_init_data wm8994_fixed_voltage1_init_data = {
.constraints = {
.always_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(wm8994_fixed_voltage1_supplies),
.consumer_supplies = wm8994_fixed_voltage1_supplies,
};

static struct fixed_voltage_config wm8994_fixed_voltage0_config = {
.supply_name = "VCC_1.8V_PDA",
.microvolts = 1800000,
.gpio = -EINVAL,
.init_data = &wm8994_fixed_voltage0_init_data,
};

static struct fixed_voltage_config wm8994_fixed_voltage1_config = {
.supply_name = "V_BAT",
.microvolts = 3700000,
.gpio = -EINVAL,
.init_data = &wm8994_fixed_voltage1_init_data,
};

static struct platform_device wm8994_fixed_voltage0 = {
.name = "reg-fixed-voltage",
.id = 0,
.dev = {
.platform_data = &wm8994_fixed_voltage0_config,
},
};

static struct platform_device wm8994_fixed_voltage1 = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &wm8994_fixed_voltage1_config,
},
};

static struct regulator_consumer_supply wm8994_avdd1_supply = {
.dev_name = "5-001a",
.supply = "AVDD1",
};

static struct regulator_consumer_supply wm8994_dcvdd_supply = {
.dev_name = "5-001a",
.supply = "DCVDD",
};

static struct regulator_init_data wm8994_ldo1_data = {
.constraints = {
.name = "AVDD1_3.0V",
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &wm8994_avdd1_supply,
};

static struct regulator_init_data wm8994_ldo2_data = {
.constraints = {
.name = "DCVDD_1.0V",
},
.num_consumer_supplies = 1,
.consumer_supplies = &wm8994_dcvdd_supply,
};

static struct wm8994_pdata wm8994_platform_data = {
/* configure gpio1 function: 0x0001(Logic level input/output) */
.gpio_defaults[0] = 0x0001,
/* configure gpio3/4/5/7 function for AIF2 voice */
.gpio_defaults[2] = 0x8100,
.gpio_defaults[3] = 0x8100,
.gpio_defaults[4] = 0x8100,
.gpio_defaults[6] = 0x0100,
/* configure gpio8/9/10/11 function for AIF3 BT */
.gpio_defaults[7] = 0x8100,
.gpio_defaults[8] = 0x0100,
.gpio_defaults[9] = 0x0100,
.gpio_defaults[10] = 0x0100,
.ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */
.ldo[1] = { 0, NULL, &wm8994_ldo2_data },
};

/* GPIO I2C PMIC */
#define AP_I2C_GPIO_PMIC_BUS_4 4
static struct i2c_gpio_platform_data goni_i2c_gpio_pmic_data = {
Expand Down Expand Up @@ -564,6 +678,7 @@ static struct i2c_board_info i2c_gpio5_devs[] __initdata = {
{
/* CS/ADDR = low 0x34 (FYI: high = 0x36) */
I2C_BOARD_INFO("wm8994", 0x1a),
.platform_data = &wm8994_platform_data,
},
};

Expand Down Expand Up @@ -681,6 +796,8 @@ static struct platform_device *goni_devices[] __initdata = {
&samsung_device_keypad,
&s3c_device_i2c1,
&s3c_device_i2c2,
&wm8994_fixed_voltage0,
&wm8994_fixed_voltage1,
};

static void __init goni_sound_init(void)
Expand Down

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