mirror of https://gitee.com/openkylin/linux.git
mfd: PCF50633 gpio support
What the PCF05633 calls as a 'GPIO' is much more than the GPIO in the linux sense and there are only 4 of them - which means, the gpiolib is not used here. Signed-off-by: Balaji Rao <balajirrao@openmoko.org> Cc: Andy Green <andy@openmoko.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This commit is contained in:
parent
08c3e06a5e
commit
6a3d119b4c
|
@ -233,6 +233,13 @@ config PCF50633_ADC
|
|||
Say yes here if you want to include support for ADC in the
|
||||
NXP PCF50633 chip.
|
||||
|
||||
config PCF50633_GPIO
|
||||
tristate "Support for NXP PCF50633 GPIO"
|
||||
depends on MFD_PCF50633
|
||||
help
|
||||
Say yes here if you want to include support GPIO for pins on
|
||||
the PCF50633 chip.
|
||||
|
||||
endmenu
|
||||
|
||||
menu "Multimedia Capabilities Port drivers"
|
||||
|
|
|
@ -39,4 +39,5 @@ obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o
|
|||
obj-$(CONFIG_PMIC_DA903X) += da903x.o
|
||||
|
||||
obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o
|
||||
obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
|
||||
obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
|
||||
obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o
|
|
@ -0,0 +1,118 @@
|
|||
/* 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/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);
|
|
@ -0,0 +1,52 @@
|
|||
/*
|
||||
* gpio.h -- GPIO driver for NXP PCF50633
|
||||
*
|
||||
* (C) 2006-2008 by Openmoko, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef __LINUX_MFD_PCF50633_GPIO_H
|
||||
#define __LINUX_MFD_PCF50633_GPIO_H
|
||||
|
||||
#include <linux/mfd/pcf50633/core.h>
|
||||
|
||||
#define PCF50633_GPIO1 1
|
||||
#define PCF50633_GPIO2 2
|
||||
#define PCF50633_GPIO3 3
|
||||
#define PCF50633_GPO 4
|
||||
|
||||
#define PCF50633_REG_GPIO1CFG 0x14
|
||||
#define PCF50633_REG_GPIO2CFG 0x15
|
||||
#define PCF50633_REG_GPIO3CFG 0x16
|
||||
#define PCF50633_REG_GPOCFG 0x17
|
||||
|
||||
#define PCF50633_GPOCFG_GPOSEL_MASK 0x07
|
||||
|
||||
enum pcf50633_reg_gpocfg {
|
||||
PCF50633_GPOCFG_GPOSEL_0 = 0x00,
|
||||
PCF50633_GPOCFG_GPOSEL_LED_NFET = 0x01,
|
||||
PCF50633_GPOCFG_GPOSEL_SYSxOK = 0x02,
|
||||
PCF50633_GPOCFG_GPOSEL_CLK32K = 0x03,
|
||||
PCF50633_GPOCFG_GPOSEL_ADAPUSB = 0x04,
|
||||
PCF50633_GPOCFG_GPOSEL_USBxOK = 0x05,
|
||||
PCF50633_GPOCFG_GPOSEL_ACTPH4 = 0x06,
|
||||
PCF50633_GPOCFG_GPOSEL_1 = 0x07,
|
||||
PCF50633_GPOCFG_GPOSEL_INVERSE = 0x08,
|
||||
};
|
||||
|
||||
int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val);
|
||||
u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio);
|
||||
|
||||
int pcf50633_gpio_invert_set(struct pcf50633 *, int gpio, int invert);
|
||||
int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio);
|
||||
|
||||
int pcf50633_gpio_power_supply_set(struct pcf50633 *,
|
||||
int gpio, int regulator, int on);
|
||||
#endif /* __LINUX_MFD_PCF50633_GPIO_H */
|
||||
|
||||
|
Loading…
Reference in New Issue