2 * Copyright (C) ST-Ericsson SA 2010
4 * License Terms: GNU General Public License, version 2
5 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
8 #ifndef __LINUX_MFD_STMPE_H
9 #define __LINUX_MFD_STMPE_H
11 #include <linux/mutex.h>
17 STMPE_BLOCK_GPIO = 1 << 0,
18 STMPE_BLOCK_KEYPAD = 1 << 1,
19 STMPE_BLOCK_TOUCHSCREEN = 1 << 2,
20 STMPE_BLOCK_ADC = 1 << 3,
21 STMPE_BLOCK_PWM = 1 << 4,
22 STMPE_BLOCK_ROTATOR = 1 << 5,
37 * For registers whose locations differ on variants, the correct address is
38 * obtained by indexing stmpe->regs with one of the following.
55 STMPE_IDX_GPAFR_U_MSB,
56 STMPE_IDX_IEGPIOR_LSB,
57 STMPE_IDX_ISGPIOR_LSB,
58 STMPE_IDX_ISGPIOR_MSB,
63 struct stmpe_variant_info;
64 struct stmpe_client_info;
67 * struct stmpe - STMPE MFD structure
68 * @vcc: optional VCC regulator
69 * @vio: optional VIO regulator
70 * @lock: lock protecting I/O operations
71 * @irq_lock: IRQ bus lock
72 * @dev: device, mostly for dev_dbg()
73 * @irq_domain: IRQ domain
74 * @client: client - i2c or spi
75 * @ci: client specific information
76 * @partnum: part number
77 * @variant: the detected STMPE model number
78 * @regs: list of addresses of registers which are at different addresses on
79 * different variants. Indexed by one of STMPE_IDX_*.
80 * @irq: irq number for stmpe
81 * @num_gpios: number of gpios, differs for variants
82 * @ier: cache of IER registers for bus_lock
83 * @oldier: cache of IER registers for bus_lock
84 * @pdata: platform data
87 struct regulator *vcc;
88 struct regulator *vio;
90 struct mutex irq_lock;
92 struct irq_domain *domain;
94 struct stmpe_client_info *ci;
95 enum stmpe_partnum partnum;
96 struct stmpe_variant_info *variant;
103 struct stmpe_platform_data *pdata;
106 extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data);
107 extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg);
108 extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length,
110 extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length,
112 extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val);
113 extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins,
114 enum stmpe_block block);
115 extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks);
116 extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks);
118 #define STMPE_GPIO_NOREQ_811_TOUCH (0xf0)
121 * struct stmpe_platform_data - STMPE platform data
122 * @id: device id to distinguish between multiple STMPEs on the same board
123 * @blocks: bitmask of blocks to enable (use STMPE_BLOCK_*)
124 * @irq_trigger: IRQ trigger to use for the interrupt to the host
125 * @autosleep: bool to enable/disable stmpe autosleep
126 * @autosleep_timeout: inactivity timeout in milliseconds for autosleep
127 * @irq_over_gpio: true if gpio is used to get irq
128 * @irq_gpio: gpio number over which irq will be requested (significant only if
129 * irq_over_gpio is true)
131 struct stmpe_platform_data {
134 unsigned int irq_trigger;
138 int autosleep_timeout;