ARM: pxa: magician: Add support for MAX1587A Vcore regulator
HTC Magician contains a MAX1587A voltage regulator for a Vcore supply. The Vcore regulation is required for a CPU speed switching. This patch adds declaration for the max1586 driver. Notice: - MAX1587A version does not support the V6 (USIM) output. - A boost resistor was directly measured for a board_id 0x3a. Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
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arch/arm/mach-pxa
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@ -45,6 +45,8 @@
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#include <linux/platform_data/irda-pxaficp.h>
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#include <linux/platform_data/usb-ohci-pxa27x.h>
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#include <linux/regulator/max1586.h>
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#include "devices.h"
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#include "generic.h"
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@ -696,6 +698,52 @@ static struct platform_device bq24022 = {
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},
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};
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/*
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* Vcore regulator MAX1587A
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*/
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static struct regulator_consumer_supply magician_max1587a_consumers[] = {
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REGULATOR_SUPPLY("vcc_core", NULL),
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};
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static struct regulator_init_data magician_max1587a_v3_info = {
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.constraints = {
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.name = "vcc_core range",
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.min_uV = 700000,
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.max_uV = 1475000,
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.always_on = 1,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
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},
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.consumer_supplies = magician_max1587a_consumers,
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.num_consumer_supplies = ARRAY_SIZE(magician_max1587a_consumers),
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};
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static struct max1586_subdev_data magician_max1587a_subdevs[] = {
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{
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.name = "vcc_core",
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.id = MAX1586_V3,
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.platform_data = &magician_max1587a_v3_info,
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}
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};
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static struct max1586_platform_data magician_max1587a_info = {
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.subdevs = magician_max1587a_subdevs,
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.num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
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/*
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* NOTICE measured directly on the PCB (board_id == 0x3a), but
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* if R24 is present, it will boost the voltage
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* (write 1.475V, get 1.645V and smoke)
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*/
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.v3_gain = MAX1586_GAIN_NO_R24,
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};
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static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
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{
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I2C_BOARD_INFO("max1586", 0x14),
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.platform_data = &magician_max1587a_info,
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},
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};
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/*
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* MMC/SD
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*/
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@ -872,6 +920,10 @@ static void __init magician_init(void)
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pxa_set_ficp_info(&magician_ficp_info);
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pxa27x_set_i2c_power_info(&magician_i2c_power_info);
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pxa_set_i2c_info(&i2c_info);
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i2c_register_board_info(1,
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ARRAY_AND_SIZE(magician_pwr_i2c_board_info));
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pxa_set_mci_info(&magician_mci_info);
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pxa_set_ohci_info(&magician_ohci_info);
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