b4ecd326b7
The TC35892 I/O Expander provides 24 GPIOs, a keypad controller, timers, and a rotator wheel interface. This patch adds the MFD core. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2010
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*
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* License Terms: GNU General Public License, version 2
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*/
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#ifndef __LINUX_MFD_TC35892_H
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#define __LINUX_MFD_TC35892_H
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#include <linux/device.h>
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#define TC35892_RSTCTRL_IRQRST (1 << 4)
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#define TC35892_RSTCTRL_TIMRST (1 << 3)
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#define TC35892_RSTCTRL_ROTRST (1 << 2)
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#define TC35892_RSTCTRL_KBDRST (1 << 1)
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#define TC35892_RSTCTRL_GPIRST (1 << 0)
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#define TC35892_IRQST 0x91
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#define TC35892_MANFCODE_MAGIC 0x03
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#define TC35892_MANFCODE 0x80
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#define TC35892_VERSION 0x81
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#define TC35892_IOCFG 0xA7
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#define TC35892_CLKMODE 0x88
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#define TC35892_CLKCFG 0x89
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#define TC35892_CLKEN 0x8A
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#define TC35892_RSTCTRL 0x82
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#define TC35892_EXTRSTN 0x83
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#define TC35892_RSTINTCLR 0x84
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#define TC35892_GPIOIS0 0xC9
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#define TC35892_GPIOIS1 0xCA
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#define TC35892_GPIOIS2 0xCB
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#define TC35892_GPIOIBE0 0xCC
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#define TC35892_GPIOIBE1 0xCD
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#define TC35892_GPIOIBE2 0xCE
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#define TC35892_GPIOIEV0 0xCF
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#define TC35892_GPIOIEV1 0xD0
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#define TC35892_GPIOIEV2 0xD1
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#define TC35892_GPIOIE0 0xD2
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#define TC35892_GPIOIE1 0xD3
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#define TC35892_GPIOIE2 0xD4
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#define TC35892_GPIORIS0 0xD6
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#define TC35892_GPIORIS1 0xD7
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#define TC35892_GPIORIS2 0xD8
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#define TC35892_GPIOMIS0 0xD9
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#define TC35892_GPIOMIS1 0xDA
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#define TC35892_GPIOMIS2 0xDB
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#define TC35892_GPIOIC0 0xDC
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#define TC35892_GPIOIC1 0xDD
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#define TC35892_GPIOIC2 0xDE
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#define TC35892_GPIODATA0 0xC0
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#define TC35892_GPIOMASK0 0xc1
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#define TC35892_GPIODATA1 0xC2
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#define TC35892_GPIOMASK1 0xc3
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#define TC35892_GPIODATA2 0xC4
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#define TC35892_GPIOMASK2 0xC5
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#define TC35892_GPIODIR0 0xC6
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#define TC35892_GPIODIR1 0xC7
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#define TC35892_GPIODIR2 0xC8
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#define TC35892_GPIOSYNC0 0xE6
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#define TC35892_GPIOSYNC1 0xE7
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#define TC35892_GPIOSYNC2 0xE8
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#define TC35892_GPIOWAKE0 0xE9
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#define TC35892_GPIOWAKE1 0xEA
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#define TC35892_GPIOWAKE2 0xEB
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#define TC35892_GPIOODM0 0xE0
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#define TC35892_GPIOODE0 0xE1
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#define TC35892_GPIOODM1 0xE2
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#define TC35892_GPIOODE1 0xE3
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#define TC35892_GPIOODM2 0xE4
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#define TC35892_GPIOODE2 0xE5
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#define TC35892_INT_GPIIRQ 0
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#define TC35892_INT_TI0IRQ 1
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#define TC35892_INT_TI1IRQ 2
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#define TC35892_INT_TI2IRQ 3
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#define TC35892_INT_ROTIRQ 5
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#define TC35892_INT_KBDIRQ 6
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#define TC35892_INT_PORIRQ 7
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#define TC35892_NR_INTERNAL_IRQS 8
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#define TC35892_INT_GPIO(x) (TC35892_NR_INTERNAL_IRQS + (x))
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struct tc35892 {
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struct mutex lock;
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struct device *dev;
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struct i2c_client *i2c;
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int irq_base;
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int num_gpio;
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struct tc35892_platform_data *pdata;
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};
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extern int tc35892_reg_write(struct tc35892 *tc35892, u8 reg, u8 data);
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extern int tc35892_reg_read(struct tc35892 *tc35892, u8 reg);
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extern int tc35892_block_read(struct tc35892 *tc35892, u8 reg, u8 length,
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u8 *values);
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extern int tc35892_block_write(struct tc35892 *tc35892, u8 reg, u8 length,
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const u8 *values);
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extern int tc35892_set_bits(struct tc35892 *tc35892, u8 reg, u8 mask, u8 val);
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/**
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* struct tc35892_gpio_platform_data - TC35892 GPIO platform data
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* @gpio_base: first gpio number assigned to TC35892. A maximum of
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* %TC35892_NR_GPIOS GPIOs will be allocated.
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*/
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struct tc35892_gpio_platform_data {
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int gpio_base;
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};
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/**
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* struct tc35892_platform_data - TC35892 platform data
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* @irq_base: base IRQ number. %TC35892_NR_IRQS irqs will be used.
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* @gpio: GPIO-specific platform data
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*/
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struct tc35892_platform_data {
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int irq_base;
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struct tc35892_gpio_platform_data *gpio;
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};
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#define TC35892_NR_GPIOS 24
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#define TC35892_NR_IRQS TC35892_INT_GPIO(TC35892_NR_GPIOS)
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#endif
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