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ARM: mmp: refactored 5V regulator support using fixed-regulator

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Signed-off-by: Mark F. Brown <mark.brown314@gmail.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
Mark F. Brown 2010-12-13 22:56:59 -05:00 • committed by Eric Miao
parent a8fb0b5531
commit e97d0fac84
1 changed files with 38 additions and 0 deletions
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38
arch/arm/mach-mmp/brownstone.c
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@ -17,6 +17,7 @@
#include <linux/gpio.h> #include <linux/gpio.h>
#include <linux/regulator/machine.h> #include <linux/regulator/machine.h>
#include <linux/regulator/max8649.h> #include <linux/regulator/max8649.h>
#include <linux/regulator/fixed.h>
#include <linux/mfd/max8925.h> #include <linux/mfd/max8925.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
@ -30,6 +31,8 @@
#define BROWNSTONE_NR_IRQS (IRQ_BOARD_START + 40) #define BROWNSTONE_NR_IRQS (IRQ_BOARD_START + 40)
#define GPIO_5V_ENABLE (89)
static unsigned long brownstone_pin_config[] __initdata = { static unsigned long brownstone_pin_config[] __initdata = {
/* UART1 */ /* UART1 */
GPIO29_UART1_RXD, GPIO29_UART1_RXD,
@ -97,6 +100,9 @@ static unsigned long brownstone_pin_config[] __initdata = {
GPIO111_MMC3_DAT0 | MFP_PULL_HIGH, GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,
GPIO112_MMC3_CMD | MFP_PULL_HIGH, GPIO112_MMC3_CMD | MFP_PULL_HIGH,
GPIO151_MMC3_CLK, GPIO151_MMC3_CLK,
/* 5V regulator */
GPIO89_GPIO,
}; };
static struct regulator_consumer_supply max8649_supply[] = { static struct regulator_consumer_supply max8649_supply[] = {
@ -123,6 +129,35 @@ static struct max8649_platform_data brownstone_max8649_info = {
.regulator = &max8649_init_data, .regulator = &max8649_init_data,
}; };
static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
REGULATOR_SUPPLY("v_5vp", NULL),
};
static struct regulator_init_data brownstone_v_5vp_data = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(brownstone_v_5vp_supplies),
.consumer_supplies = brownstone_v_5vp_supplies,
};
static struct fixed_voltage_config brownstone_v_5vp = {
.supply_name = "v_5vp",
.microvolts = 5000000,
.gpio = GPIO_5V_ENABLE,
.enable_high = 1,
.enabled_at_boot = 1,
.init_data = &brownstone_v_5vp_data,
};
static struct platform_device brownstone_v_5vp_device = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &brownstone_v_5vp,
},
};
static struct max8925_platform_data brownstone_max8925_info = { static struct max8925_platform_data brownstone_max8925_info = {
.irq_base = IRQ_BOARD_START, .irq_base = IRQ_BOARD_START,
}; };
@ -154,6 +189,9 @@ static void __init brownstone_init(void)
mmp2_add_uart(3); mmp2_add_uart(3);
mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info)); mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */ mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
/* enable 5v regulator */
platform_device_register(&brownstone_v_5vp_device);
} }
MACHINE_START(BROWNSTONE, "Brownstone Development Platform") MACHINE_START(BROWNSTONE, "Brownstone Development Platform")