d284c16f84
On tc35894, have to disable direct keypad interrupts to make it as general purpose interrupts functionality work. if not, after chip reset, IRQST(0x91) will always 0x20, IRQN always low level, can't be clear. Configure DIRECTx to enable general purpose gpio mode, else read GPIOMISx register always zero in irq routine. verified on tc35894, need more test on other tc3589x. Signed-off-by: dillon min <dillon.minfei@gmail.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
158 lines
4 KiB
C
158 lines
4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) ST-Ericsson SA 2010
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*/
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#ifndef __LINUX_MFD_TC3589x_H
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#define __LINUX_MFD_TC3589x_H
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struct device;
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enum tx3589x_block {
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TC3589x_BLOCK_GPIO = 1 << 0,
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TC3589x_BLOCK_KEYPAD = 1 << 1,
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};
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#define TC3589x_RSTCTRL_IRQRST (1 << 4)
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#define TC3589x_RSTCTRL_TIMRST (1 << 3)
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#define TC3589x_RSTCTRL_ROTRST (1 << 2)
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#define TC3589x_RSTCTRL_KBDRST (1 << 1)
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#define TC3589x_RSTCTRL_GPIRST (1 << 0)
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#define TC3589x_DKBDMSK_ELINT (1 << 1)
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#define TC3589x_DKBDMSK_EINT (1 << 0)
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/* Keyboard Configuration Registers */
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#define TC3589x_KBDSETTLE_REG 0x01
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#define TC3589x_KBDBOUNCE 0x02
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#define TC3589x_KBDSIZE 0x03
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#define TC3589x_KBCFG_LSB 0x04
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#define TC3589x_KBCFG_MSB 0x05
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#define TC3589x_KBDIC 0x08
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#define TC3589x_KBDMSK 0x09
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#define TC3589x_EVTCODE_FIFO 0x10
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#define TC3589x_KBDMFS 0x8F
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#define TC3589x_IRQST 0x91
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#define TC3589x_MANFCODE_MAGIC 0x03
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#define TC3589x_MANFCODE 0x80
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#define TC3589x_VERSION 0x81
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#define TC3589x_IOCFG 0xA7
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#define TC3589x_CLKMODE 0x88
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#define TC3589x_CLKCFG 0x89
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#define TC3589x_CLKEN 0x8A
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#define TC3589x_RSTCTRL 0x82
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#define TC3589x_EXTRSTN 0x83
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#define TC3589x_RSTINTCLR 0x84
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/* Pull up/down configuration registers */
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#define TC3589x_IOCFG 0xA7
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#define TC3589x_IOPULLCFG0_LSB 0xAA
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#define TC3589x_IOPULLCFG0_MSB 0xAB
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#define TC3589x_IOPULLCFG1_LSB 0xAC
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#define TC3589x_IOPULLCFG1_MSB 0xAD
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#define TC3589x_IOPULLCFG2_LSB 0xAE
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#define TC3589x_GPIOIS0 0xC9
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#define TC3589x_GPIOIS1 0xCA
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#define TC3589x_GPIOIS2 0xCB
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#define TC3589x_GPIOIBE0 0xCC
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#define TC3589x_GPIOIBE1 0xCD
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#define TC3589x_GPIOIBE2 0xCE
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#define TC3589x_GPIOIEV0 0xCF
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#define TC3589x_GPIOIEV1 0xD0
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#define TC3589x_GPIOIEV2 0xD1
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#define TC3589x_GPIOIE0 0xD2
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#define TC3589x_GPIOIE1 0xD3
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#define TC3589x_GPIOIE2 0xD4
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#define TC3589x_GPIORIS0 0xD6
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#define TC3589x_GPIORIS1 0xD7
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#define TC3589x_GPIORIS2 0xD8
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#define TC3589x_GPIOMIS0 0xD9
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#define TC3589x_GPIOMIS1 0xDA
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#define TC3589x_GPIOMIS2 0xDB
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#define TC3589x_GPIOIC0 0xDC
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#define TC3589x_GPIOIC1 0xDD
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#define TC3589x_GPIOIC2 0xDE
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#define TC3589x_GPIODATA0 0xC0
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#define TC3589x_GPIOMASK0 0xc1
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#define TC3589x_GPIODATA1 0xC2
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#define TC3589x_GPIOMASK1 0xc3
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#define TC3589x_GPIODATA2 0xC4
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#define TC3589x_GPIOMASK2 0xC5
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#define TC3589x_GPIODIR0 0xC6
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#define TC3589x_GPIODIR1 0xC7
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#define TC3589x_GPIODIR2 0xC8
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#define TC3589x_GPIOSYNC0 0xE6
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#define TC3589x_GPIOSYNC1 0xE7
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#define TC3589x_GPIOSYNC2 0xE8
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#define TC3589x_GPIOWAKE0 0xE9
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#define TC3589x_GPIOWAKE1 0xEA
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#define TC3589x_GPIOWAKE2 0xEB
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#define TC3589x_GPIOODM0 0xE0
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#define TC3589x_GPIOODE0 0xE1
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#define TC3589x_GPIOODM1 0xE2
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#define TC3589x_GPIOODE1 0xE3
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#define TC3589x_GPIOODM2 0xE4
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#define TC3589x_GPIOODE2 0xE5
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#define TC3589x_DIRECT0 0xEC
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#define TC3589x_DKBDMSK 0xF3
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#define TC3589x_INT_GPIIRQ 0
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#define TC3589x_INT_TI0IRQ 1
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#define TC3589x_INT_TI1IRQ 2
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#define TC3589x_INT_TI2IRQ 3
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#define TC3589x_INT_ROTIRQ 5
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#define TC3589x_INT_KBDIRQ 6
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#define TC3589x_INT_PORIRQ 7
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#define TC3589x_NR_INTERNAL_IRQS 8
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struct tc3589x {
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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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struct irq_domain *domain;
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int irq_base;
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int num_gpio;
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struct tc3589x_platform_data *pdata;
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};
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extern int tc3589x_reg_write(struct tc3589x *tc3589x, u8 reg, u8 data);
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extern int tc3589x_reg_read(struct tc3589x *tc3589x, u8 reg);
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extern int tc3589x_block_read(struct tc3589x *tc3589x, u8 reg, u8 length,
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u8 *values);
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extern int tc3589x_block_write(struct tc3589x *tc3589x, u8 reg, u8 length,
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const u8 *values);
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extern int tc3589x_set_bits(struct tc3589x *tc3589x, u8 reg, u8 mask, u8 val);
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/*
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* Keypad related platform specific constants
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* These values may be modified for fine tuning
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*/
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#define TC_KPD_ROWS 0x8
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#define TC_KPD_COLUMNS 0x8
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#define TC_KPD_DEBOUNCE_PERIOD 0xA3
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#define TC_KPD_SETTLE_TIME 0xA3
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/**
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* struct tc3589x_platform_data - TC3589x platform data
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* @block: bitmask of blocks to enable (use TC3589x_BLOCK_*)
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*/
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struct tc3589x_platform_data {
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unsigned int block;
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};
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#endif
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