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author | Philipp Zabel <philipp.zabel@gmail.com> | 2009-05-28 05:15:18 (GMT) |
---|---|---|
committer | Eric Miao <eric.y.miao@gmail.com> | 2009-06-16 13:03:35 (GMT) |
commit | 6ea0414fc748ab5b1d83a414c7ee3a60190363aa (patch) | |
tree | 0317bea5b0744260a07aeffa240140abc7cd4c2b /arch/arm/mach-pxa/hx4700.c | |
parent | e6c3f4b89bf3698a6994d30de7a16ae395a81dab (diff) | |
download | linux-6ea0414fc748ab5b1d83a414c7ee3a60190363aa.tar.xz |
[ARM] pxa/hx4700: add Maxim 1587A voltage regulator
On this board, the PXA270 CPU voltage VCC_CORE is provided
by a Maxim 1587A voltage regulator configured to provide
1.55 V maximum voltage for 624 MHz operation.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'arch/arm/mach-pxa/hx4700.c')
-rw-r--r-- | arch/arm/mach-pxa/hx4700.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c index 7fff467..81359d5 100644 --- a/arch/arm/mach-pxa/hx4700.c +++ b/arch/arm/mach-pxa/hx4700.c @@ -30,6 +30,7 @@ #include <linux/pwm_backlight.h> #include <linux/regulator/bq24022.h> #include <linux/regulator/machine.h> +#include <linux/regulator/max1586.h> #include <linux/spi/ads7846.h> #include <linux/spi/spi.h> #include <linux/usb/gpio_vbus.h> @@ -775,6 +776,45 @@ static struct platform_device strataflash = { }; /* + * Maxim MAX1587A on PI2C + */ + +static struct regulator_consumer_supply max1587a_consumer = { + .supply = "vcc_core", +}; + +static struct regulator_init_data max1587a_v3_info = { + .constraints = { + .name = "vcc_core range", + .min_uV = 900000, + .max_uV = 1705000, + .always_on = 1, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &max1587a_consumer, +}; + +static struct max1586_subdev_data max1587a_subdev = { + .name = "vcc_core", + .id = MAX1586_V3, + .platform_data = &max1587a_v3_info, +}; + +static struct max1586_platform_data max1587a_info = { + .num_subdevs = 1, + .subdevs = &max1587a_subdev, + .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */ +}; + +static struct i2c_board_info __initdata pi2c_board_info[] = { + { + I2C_BOARD_INFO("max1586", 0x14), + .platform_data = &max1587a_info, + }, +}; + +/* * PCMCIA */ @@ -828,6 +868,7 @@ static void __init hx4700_init(void) pxa_set_ficp_info(&ficp_info); pxa27x_set_i2c_power_info(NULL); pxa_set_i2c_info(NULL); + i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info)); pxa2xx_set_spi_info(2, &pxa_ssp2_master_info); spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info)); |