diff options
author | Robert Jarzmik <robert.jarzmik@free.fr> | 2009-04-30 11:53:30 +0800 |
---|---|---|
committer | Eric Miao <eric.y.miao@gmail.com> | 2009-06-16 21:03:35 +0800 |
commit | 9752e14898102063a67b44e6db5b758092e769a4 (patch) | |
tree | 8c624af18881324070a0c434cb23d66f04cce9d9 /arch | |
parent | 6ea0414fc748ab5b1d83a414c7ee3a60190363aa (diff) |
[ARM] pxa/mioa701: add Maxim 1586 voltage regulator
On this board, the PXA272 CPU voltage VCC_CORE is provided
by a Maxim 1586 voltage regulator. Use the regulator
framework to provide VCC_CORE control. When cpufreq will be
updated to ask for vcc_core, this will optimize power
drained by the board.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-pxa/mioa701.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c index 4dc8c2ec40a9..99e5a880a4ad 100644 --- a/arch/arm/mach-pxa/mioa701.c +++ b/arch/arm/mach-pxa/mioa701.c @@ -37,6 +37,7 @@ #include <linux/wm97xx_batt.h> #include <linux/mtd/physmap.h> #include <linux/usb/gpio_vbus.h> +#include <linux/regulator/max1586.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -717,6 +718,37 @@ static struct wm97xx_batt_info mioa701_battery_data = { }; /* + * Voltage regulation + */ +static struct regulator_consumer_supply max1586_consumers[] = { + { + .supply = "vcc_core", + } +}; + +static struct regulator_init_data max1586_v3_info = { + .constraints = { + .name = "vcc_core range", + .min_uV = 1000000, + .max_uV = 1705000, + .always_on = 1, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + }, + .num_consumer_supplies = ARRAY_SIZE(max1586_consumers), + .consumer_supplies = max1586_consumers, +}; + +static struct max1586_subdev_data max1586_subdevs[] = { + { .name = "vcc_core", .id = MAX1586_V3, + .platform_data = &max1586_v3_info }, +}; + +static struct max1586_platform_data max1586_info = { + .subdevs = max1586_subdevs, + .num_subdevs = ARRAY_SIZE(max1586_subdevs), +}; + +/* * Camera interface */ struct pxacamera_platform_data mioa701_pxacamera_platform_data = { @@ -725,6 +757,13 @@ struct pxacamera_platform_data mioa701_pxacamera_platform_data = { .mclk_10khz = 5000, }; +static struct i2c_board_info __initdata mioa701_pi2c_devices[] = { + { + I2C_BOARD_INFO("max1586", 0x14), + .platform_data = &max1586_info, + }, +}; + static struct soc_camera_link iclink = { .bus_id = 0, /* Must match id in pxa27x_device_camera in device.c */ }; @@ -825,7 +864,9 @@ static void __init mioa701_machine_init(void) platform_add_devices(devices, ARRAY_SIZE(devices)); gsm_init(); + i2c_register_board_info(1, ARRAY_AND_SIZE(mioa701_pi2c_devices)); pxa_set_i2c_info(&i2c_pdata); + pxa27x_set_i2c_power_info(NULL); pxa_set_camera_info(&mioa701_pxacamera_platform_data); i2c_register_board_info(0, ARRAY_AND_SIZE(mioa701_i2c_devices)); } |