| Sourav Poddar | 8284328 | 2012-10-01 16:31:22 +0530 | [diff] [blame] | 1 | /* |
| 2 | * SMSC ECE1099 |
| 3 | * |
| 4 | * Copyright 2012 Texas Instruments Inc. |
| 5 | * |
| 6 | * Author: Sourav Poddar <sourav.poddar@ti.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your |
| 11 | * option) any later version. |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #ifndef __LINUX_MFD_SMSC_H |
| 16 | #define __LINUX_MFD_SMSC_H |
| 17 | |
| 18 | #include <linux/regmap.h> |
| 19 | |
| 20 | #define SMSC_ID_ECE1099 1 |
| 21 | #define SMSC_NUM_CLIENTS 2 |
| 22 | |
| 23 | #define SMSC_BASE_ADDR 0x38 |
| 24 | #define OMAP_GPIO_SMSC_IRQ 151 |
| 25 | |
| 26 | #define SMSC_MAXGPIO 32 |
| 27 | #define SMSC_BANK(offs) ((offs) >> 3) |
| 28 | #define SMSC_BIT(offs) (1u << ((offs) & 0x7)) |
| 29 | |
| 30 | struct smsc { |
| 31 | struct device *dev; |
| 32 | struct i2c_client *i2c_clients[SMSC_NUM_CLIENTS]; |
| 33 | struct regmap *regmap; |
| 34 | int clk; |
| 35 | /* Stored chip id */ |
| 36 | int id; |
| 37 | }; |
| 38 | |
| 39 | struct smsc_gpio; |
| 40 | struct smsc_keypad; |
| 41 | |
| 42 | static inline int smsc_read(struct device *child, unsigned int reg, |
| 43 | unsigned int *dest) |
| 44 | { |
| 45 | struct smsc *smsc = dev_get_drvdata(child->parent); |
| 46 | |
| 47 | return regmap_read(smsc->regmap, reg, dest); |
| 48 | } |
| 49 | |
| 50 | static inline int smsc_write(struct device *child, unsigned int reg, |
| 51 | unsigned int value) |
| 52 | { |
| 53 | struct smsc *smsc = dev_get_drvdata(child->parent); |
| 54 | |
| 55 | return regmap_write(smsc->regmap, reg, value); |
| 56 | } |
| 57 | |
| 58 | /* Registers for SMSC */ |
| 59 | #define SMSC_RESET 0xF5 |
| 60 | #define SMSC_GRP_INT 0xF9 |
| 61 | #define SMSC_CLK_CTRL 0xFA |
| 62 | #define SMSC_WKUP_CTRL 0xFB |
| 63 | #define SMSC_DEV_ID 0xFC |
| 64 | #define SMSC_DEV_REV 0xFD |
| 65 | #define SMSC_VEN_ID_L 0xFE |
| 66 | #define SMSC_VEN_ID_H 0xFF |
| 67 | |
| 68 | /* CLK VALUE */ |
| 69 | #define SMSC_CLK_VALUE 0x13 |
| 70 | |
| 71 | /* Registers for function GPIO INPUT */ |
| 72 | #define SMSC_GPIO_DATA_IN_START 0x00 |
| 73 | |
| 74 | /* Registers for function GPIO OUPUT */ |
| 75 | #define SMSC_GPIO_DATA_OUT_START 0x05 |
| 76 | |
| 77 | /* Definitions for SMSC GPIO CONFIGURATION REGISTER*/ |
| 78 | #define SMSC_GPIO_INPUT_LOW 0x01 |
| 79 | #define SMSC_GPIO_INPUT_RISING 0x09 |
| 80 | #define SMSC_GPIO_INPUT_FALLING 0x11 |
| 81 | #define SMSC_GPIO_INPUT_BOTH_EDGE 0x19 |
| 82 | #define SMSC_GPIO_OUTPUT_PP 0x21 |
| 83 | #define SMSC_GPIO_OUTPUT_OP 0x31 |
| 84 | |
| 85 | #define GRP_INT_STAT 0xf9 |
| 86 | #define SMSC_GPI_INT 0x0f |
| 87 | #define SMSC_CFG_START 0x0A |
| 88 | |
| 89 | /* Registers for SMSC GPIO INTERRUPT STATUS REGISTER*/ |
| 90 | #define SMSC_GPIO_INT_STAT_START 0x32 |
| 91 | |
| 92 | /* Registers for SMSC GPIO INTERRUPT MASK REGISTER*/ |
| 93 | #define SMSC_GPIO_INT_MASK_START 0x37 |
| 94 | |
| 95 | /* Registers for SMSC function KEYPAD*/ |
| 96 | #define SMSC_KP_OUT 0x40 |
| 97 | #define SMSC_KP_IN 0x41 |
| 98 | #define SMSC_KP_INT_STAT 0x42 |
| 99 | #define SMSC_KP_INT_MASK 0x43 |
| 100 | |
| 101 | /* Definitions for keypad */ |
| 102 | #define SMSC_KP_KSO 0x70 |
| 103 | #define SMSC_KP_KSI 0x51 |
| 104 | #define SMSC_KSO_ALL_LOW 0x20 |
| 105 | #define SMSC_KP_SET_LOW_PWR 0x0B |
| 106 | #define SMSC_KP_SET_HIGH 0xFF |
| 107 | #define SMSC_KSO_EVAL 0x00 |
| 108 | |
| 109 | #endif /* __LINUX_MFD_SMSC_H */ |