[net-next-2.6.git] / drivers / mfd / pcf50633-gpio.c

/* NXP PCF50633 GPIO Driver
 *
 * (C) 2006-2008 by Openmoko, Inc.
 * Author: Balaji Rao <balajirrao@openmoko.org>
 * All rights reserved.
 *
 * Broken down from monstrous PCF50633 driver mainly by
 * Harald Welte, Andy Green and Werner Almesberger
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#include <linux/kernel.h>
#include <linux/module.h>

#include <linux/mfd/pcf50633/core.h>
#include <linux/mfd/pcf50633/gpio.h>

enum pcf50633_regulator_id {
	PCF50633_REGULATOR_AUTO,
	PCF50633_REGULATOR_DOWN1,
	PCF50633_REGULATOR_DOWN2,
	PCF50633_REGULATOR_LDO1,
	PCF50633_REGULATOR_LDO2,
	PCF50633_REGULATOR_LDO3,
	PCF50633_REGULATOR_LDO4,
	PCF50633_REGULATOR_LDO5,
	PCF50633_REGULATOR_LDO6,
	PCF50633_REGULATOR_HCLDO,
	PCF50633_REGULATOR_MEMLDO,
};

#define PCF50633_REG_AUTOOUT	0x1a
#define PCF50633_REG_DOWN1OUT	0x1e
#define PCF50633_REG_DOWN2OUT	0x22
#define PCF50633_REG_MEMLDOOUT	0x26
#define PCF50633_REG_LDO1OUT	0x2d
#define PCF50633_REG_LDO2OUT	0x2f
#define PCF50633_REG_LDO3OUT	0x31
#define PCF50633_REG_LDO4OUT	0x33
#define PCF50633_REG_LDO5OUT	0x35
#define PCF50633_REG_LDO6OUT	0x37
#define PCF50633_REG_HCLDOOUT	0x39

static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
	[PCF50633_REGULATOR_AUTO]	= PCF50633_REG_AUTOOUT,
	[PCF50633_REGULATOR_DOWN1]	= PCF50633_REG_DOWN1OUT,
	[PCF50633_REGULATOR_DOWN2]	= PCF50633_REG_DOWN2OUT,
	[PCF50633_REGULATOR_MEMLDO]	= PCF50633_REG_MEMLDOOUT,
	[PCF50633_REGULATOR_LDO1]	= PCF50633_REG_LDO1OUT,
	[PCF50633_REGULATOR_LDO2]	= PCF50633_REG_LDO2OUT,
	[PCF50633_REGULATOR_LDO3]	= PCF50633_REG_LDO3OUT,
	[PCF50633_REGULATOR_LDO4]	= PCF50633_REG_LDO4OUT,
	[PCF50633_REGULATOR_LDO5]	= PCF50633_REG_LDO5OUT,
	[PCF50633_REGULATOR_LDO6]	= PCF50633_REG_LDO6OUT,
	[PCF50633_REGULATOR_HCLDO]	= PCF50633_REG_HCLDOOUT,
};

int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val)
{
	u8 reg;

	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;

	return pcf50633_reg_set_bit_mask(pcf, reg, 0x07, val);
}
EXPORT_SYMBOL_GPL(pcf50633_gpio_set);

u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
{
	u8 reg, val;

	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
	val = pcf50633_reg_read(pcf, reg) & 0x07;

	return val;
}
EXPORT_SYMBOL_GPL(pcf50633_gpio_get);

int pcf50633_gpio_invert_set(struct pcf50633 *pcf, int gpio, int invert)
{
	u8 val, reg;

	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
	val = !!invert << 3;

	return pcf50633_reg_set_bit_mask(pcf, reg, 1 << 3, val);
}
EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set);

int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio)
{
	u8 reg, val;

	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
	val = pcf50633_reg_read(pcf, reg);

	return val & (1 << 3);
}
EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get);

int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
					int gpio, int regulator, int on)
{
	u8 reg, val, mask;

	/* the *ENA register is always one after the *OUT register */
	reg = pcf50633_regulator_registers[regulator] + 1;

	val = !!on << (gpio - PCF50633_GPIO1);
	mask = 1 << (gpio - PCF50633_GPIO1);

	return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
}
EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);

MODULE_LICENSE("GPL");
Commit	Line	Data
6a3d119b BR	1	/* NXP PCF50633 GPIO Driver
	2	*
	3	* (C) 2006-2008 by Openmoko, Inc.
	4	* Author: Balaji Rao <balajirrao@openmoko.org>
	5	* All rights reserved.
	6	*
	7	* Broken down from monstrous PCF50633 driver mainly by
	8	* Harald Welte, Andy Green and Werner Almesberger
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation; either version 2 of the License, or (at your
	13	* option) any later version.
	14	*
	15	*/
	16
	17	#include <linux/kernel.h>
1346a1c7	18	#include <linux/module.h>
6a3d119b BR	19
	20	#include <linux/mfd/pcf50633/core.h>
	21	#include <linux/mfd/pcf50633/gpio.h>
	22
	23	enum pcf50633_regulator_id {
	24	PCF50633_REGULATOR_AUTO,
	25	PCF50633_REGULATOR_DOWN1,
	26	PCF50633_REGULATOR_DOWN2,
	27	PCF50633_REGULATOR_LDO1,
	28	PCF50633_REGULATOR_LDO2,
	29	PCF50633_REGULATOR_LDO3,
	30	PCF50633_REGULATOR_LDO4,
	31	PCF50633_REGULATOR_LDO5,
	32	PCF50633_REGULATOR_LDO6,
	33	PCF50633_REGULATOR_HCLDO,
	34	PCF50633_REGULATOR_MEMLDO,
	35	};
	36
	37	#define PCF50633_REG_AUTOOUT 0x1a
	38	#define PCF50633_REG_DOWN1OUT 0x1e
	39	#define PCF50633_REG_DOWN2OUT 0x22
	40	#define PCF50633_REG_MEMLDOOUT 0x26
	41	#define PCF50633_REG_LDO1OUT 0x2d
	42	#define PCF50633_REG_LDO2OUT 0x2f
	43	#define PCF50633_REG_LDO3OUT 0x31
	44	#define PCF50633_REG_LDO4OUT 0x33
	45	#define PCF50633_REG_LDO5OUT 0x35
	46	#define PCF50633_REG_LDO6OUT 0x37
	47	#define PCF50633_REG_HCLDOOUT 0x39
	48
	49	static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
	50	[PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
	51	[PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
	52	[PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
	53	[PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
	54	[PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
	55	[PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
	56	[PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
	57	[PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
	58	[PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
	59	[PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
	60	[PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
	61	};
	62
	63	int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val)
	64	{
	65	u8 reg;
	66
	67	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
	68
	69	return pcf50633_reg_set_bit_mask(pcf, reg, 0x07, val);
	70	}
	71	EXPORT_SYMBOL_GPL(pcf50633_gpio_set);
	72
	73	u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
	74	{
	75	u8 reg, val;
	76
	77	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
	78	val = pcf50633_reg_read(pcf, reg) & 0x07;
	79
	80	return val;
	81	}
	82	EXPORT_SYMBOL_GPL(pcf50633_gpio_get);
83
84	int pcf50633_gpio_invert_set(struct pcf50633 *pcf, int gpio, int invert)
85	{
86	u8 val, reg;
87
88	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
89	val = !!invert << 3;
90
91	return pcf50633_reg_set_bit_mask(pcf, reg, 1 << 3, val);
92	}
93	EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set);
94
95	int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio)
96	{
97	u8 reg, val;
98
99	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
100	val = pcf50633_reg_read(pcf, reg);
101
102	return val & (1 << 3);
103	}
104	EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get);
105
106	int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
107	int gpio, int regulator, int on)
108	{
109	u8 reg, val, mask;
110
111	/* the ENA register is always one after the OUT register */
112	reg = pcf50633_regulator_registers[regulator] + 1;
113
114	val = !!on << (gpio - PCF50633_GPIO1);
115	mask = 1 << (gpio - PCF50633_GPIO1);
116
117	return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
118	}
119	EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);
1346a1c7 AB	120
1346a1c7 AB	121	MODULE_LICENSE("GPL");