lkml.org 
[lkml]   [2009]   [May]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 3/3] pxa/hx4700: add Maxim 1587A voltage regulator
    Date
    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>
    ---
    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 0f65680..5bc1e2b 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));

    --
    1.6.3.1


    \
     
     \ /
      Last update: 2009-05-28 07:19    [W:0.030 / U:30.804 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site