redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

[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>
hifive-unleashed-5.1
Robert Jarzmik 2009-04-30 11:53:30 +08:00 committed by Eric Miao
parent 6ea0414fc7
commit 9752e14898
1 changed files with 41 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
arch/arm/mach-pxa/mioa701.c
View File

@ -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>
@ -716,6 +717,37 @@ static struct wm97xx_batt_info mioa701_battery_data = {
.batt_name = "mioa701_battery",
};
/*
* 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
*/
@ -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));
}