127e34995SRabin Vincent /* 227e34995SRabin Vincent * Copyright (C) ST-Ericsson SA 2010 327e34995SRabin Vincent * 427e34995SRabin Vincent * License Terms: GNU General Public License, version 2 527e34995SRabin Vincent * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson 627e34995SRabin Vincent */ 727e34995SRabin Vincent 827e34995SRabin Vincent #ifndef __LINUX_MFD_STMPE_H 927e34995SRabin Vincent #define __LINUX_MFD_STMPE_H 1027e34995SRabin Vincent 11313162d0SPaul Gortmaker #include <linux/mutex.h> 12313162d0SPaul Gortmaker 13313162d0SPaul Gortmaker struct device; 149c9e3214SLinus Walleij struct regulator; 1527e34995SRabin Vincent 1627e34995SRabin Vincent enum stmpe_block { 1727e34995SRabin Vincent STMPE_BLOCK_GPIO = 1 << 0, 1827e34995SRabin Vincent STMPE_BLOCK_KEYPAD = 1 << 1, 1927e34995SRabin Vincent STMPE_BLOCK_TOUCHSCREEN = 1 << 2, 2027e34995SRabin Vincent STMPE_BLOCK_ADC = 1 << 3, 2127e34995SRabin Vincent STMPE_BLOCK_PWM = 1 << 4, 2227e34995SRabin Vincent STMPE_BLOCK_ROTATOR = 1 << 5, 2327e34995SRabin Vincent }; 2427e34995SRabin Vincent 2527e34995SRabin Vincent enum stmpe_partnum { 261cda2394SViresh Kumar STMPE610, 277f7f4ea1SViresh Kumar STMPE801, 2827e34995SRabin Vincent STMPE811, 2927e34995SRabin Vincent STMPE1601, 30230f13a5SJean-Nicolas Graux STMPE1801, 3127e34995SRabin Vincent STMPE2401, 3227e34995SRabin Vincent STMPE2403, 33e31f9b82SChris Blair STMPE_NBR_PARTS 3427e34995SRabin Vincent }; 3527e34995SRabin Vincent 3627e34995SRabin Vincent /* 3727e34995SRabin Vincent * For registers whose locations differ on variants, the correct address is 3827e34995SRabin Vincent * obtained by indexing stmpe->regs with one of the following. 3927e34995SRabin Vincent */ 4027e34995SRabin Vincent enum { 4127e34995SRabin Vincent STMPE_IDX_CHIP_ID, 4227e34995SRabin Vincent STMPE_IDX_ICR_LSB, 4327e34995SRabin Vincent STMPE_IDX_IER_LSB, 44230f13a5SJean-Nicolas Graux STMPE_IDX_ISR_LSB, 4527e34995SRabin Vincent STMPE_IDX_ISR_MSB, 4627e34995SRabin Vincent STMPE_IDX_GPMR_LSB, 4727e34995SRabin Vincent STMPE_IDX_GPSR_LSB, 4827e34995SRabin Vincent STMPE_IDX_GPCR_LSB, 4927e34995SRabin Vincent STMPE_IDX_GPDR_LSB, 5027e34995SRabin Vincent STMPE_IDX_GPEDR_MSB, 5127e34995SRabin Vincent STMPE_IDX_GPRER_LSB, 5227e34995SRabin Vincent STMPE_IDX_GPFER_LSB, 5380e1dd82SLinus Walleij STMPE_IDX_GPPUR_LSB, 5480e1dd82SLinus Walleij STMPE_IDX_GPPDR_LSB, 5527e34995SRabin Vincent STMPE_IDX_GPAFR_U_MSB, 5627e34995SRabin Vincent STMPE_IDX_IEGPIOR_LSB, 57230f13a5SJean-Nicolas Graux STMPE_IDX_ISGPIOR_LSB, 5827e34995SRabin Vincent STMPE_IDX_ISGPIOR_MSB, 5927e34995SRabin Vincent STMPE_IDX_MAX, 6027e34995SRabin Vincent }; 6127e34995SRabin Vincent 6227e34995SRabin Vincent 6327e34995SRabin Vincent struct stmpe_variant_info; 641a6e4b74SViresh Kumar struct stmpe_client_info; 65*fc1882dcSLinus Walleij struct stmpe_platform_data; 6627e34995SRabin Vincent 6727e34995SRabin Vincent /** 6827e34995SRabin Vincent * struct stmpe - STMPE MFD structure 699c9e3214SLinus Walleij * @vcc: optional VCC regulator 709c9e3214SLinus Walleij * @vio: optional VIO regulator 7127e34995SRabin Vincent * @lock: lock protecting I/O operations 7227e34995SRabin Vincent * @irq_lock: IRQ bus lock 7327e34995SRabin Vincent * @dev: device, mostly for dev_dbg() 7476f93992SLee Jones * @irq_domain: IRQ domain 751a6e4b74SViresh Kumar * @client: client - i2c or spi 761a6e4b74SViresh Kumar * @ci: client specific information 774dcaa6b6SOm Prakash * @partnum: part number 7827e34995SRabin Vincent * @variant: the detected STMPE model number 7927e34995SRabin Vincent * @regs: list of addresses of registers which are at different addresses on 8027e34995SRabin Vincent * different variants. Indexed by one of STMPE_IDX_*. 8173de16dbSViresh Kumar * @irq: irq number for stmpe 8227e34995SRabin Vincent * @num_gpios: number of gpios, differs for variants 8327e34995SRabin Vincent * @ier: cache of IER registers for bus_lock 8427e34995SRabin Vincent * @oldier: cache of IER registers for bus_lock 8527e34995SRabin Vincent * @pdata: platform data 8627e34995SRabin Vincent */ 8727e34995SRabin Vincent struct stmpe { 889c9e3214SLinus Walleij struct regulator *vcc; 899c9e3214SLinus Walleij struct regulator *vio; 9027e34995SRabin Vincent struct mutex lock; 9127e34995SRabin Vincent struct mutex irq_lock; 9227e34995SRabin Vincent struct device *dev; 9376f93992SLee Jones struct irq_domain *domain; 941a6e4b74SViresh Kumar void *client; 951a6e4b74SViresh Kumar struct stmpe_client_info *ci; 9627e34995SRabin Vincent enum stmpe_partnum partnum; 9727e34995SRabin Vincent struct stmpe_variant_info *variant; 9827e34995SRabin Vincent const u8 *regs; 9927e34995SRabin Vincent 10073de16dbSViresh Kumar int irq; 10127e34995SRabin Vincent int num_gpios; 10227e34995SRabin Vincent u8 ier[2]; 10327e34995SRabin Vincent u8 oldier[2]; 10427e34995SRabin Vincent struct stmpe_platform_data *pdata; 10527e34995SRabin Vincent }; 10627e34995SRabin Vincent 10727e34995SRabin Vincent extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data); 10827e34995SRabin Vincent extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg); 10927e34995SRabin Vincent extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length, 11027e34995SRabin Vincent u8 *values); 11127e34995SRabin Vincent extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length, 11227e34995SRabin Vincent const u8 *values); 11327e34995SRabin Vincent extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val); 11427e34995SRabin Vincent extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins, 11527e34995SRabin Vincent enum stmpe_block block); 11627e34995SRabin Vincent extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks); 11727e34995SRabin Vincent extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks); 11827e34995SRabin Vincent 119b8e9cf0bSWolfram Sang #define STMPE_GPIO_NOREQ_811_TOUCH (0xf0) 120b8e9cf0bSWolfram Sang 12127e34995SRabin Vincent #endif 122