1 /* 2 * IMX pinmux core definitions 3 * 4 * Copyright (C) 2012 Freescale Semiconductor, Inc. 5 * Copyright (C) 2012 Linaro Ltd. 6 * 7 * Author: Dong Aisheng <dong.aisheng@linaro.org> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 */ 14 15 #ifndef __DRIVERS_PINCTRL_IMX_H 16 #define __DRIVERS_PINCTRL_IMX_H 17 18 struct platform_device; 19 20 /** 21 * struct imx_pin_group - describes a single i.MX pin 22 * @pin: the pin_id of this pin 23 * @mux_mode: the mux mode for this pin. 24 * @input_reg: the select input register offset for this pin if any 25 * 0 if no select input setting needed. 26 * @input_val: the select input value for this pin. 27 * @configs: the config for this pin. 28 */ 29 struct imx_pin { 30 unsigned int pin; 31 unsigned int mux_mode; 32 u16 input_reg; 33 unsigned int input_val; 34 unsigned long config; 35 }; 36 37 /** 38 * struct imx_pin_group - describes an IMX pin group 39 * @name: the name of this specific pin group 40 * @npins: the number of pins in this group array, i.e. the number of 41 * elements in .pins so we can iterate over that array 42 * @pin_ids: array of pin_ids. pinctrl forces us to maintain such an array 43 * @pins: array of pins 44 */ 45 struct imx_pin_group { 46 const char *name; 47 unsigned npins; 48 unsigned int *pin_ids; 49 struct imx_pin *pins; 50 }; 51 52 /** 53 * struct imx_pmx_func - describes IMX pinmux functions 54 * @name: the name of this specific function 55 * @groups: corresponding pin groups 56 * @num_groups: the number of groups 57 */ 58 struct imx_pmx_func { 59 const char *name; 60 const char **groups; 61 unsigned num_groups; 62 }; 63 64 /** 65 * struct imx_pin_reg - describe a pin reg map 66 * @mux_reg: mux register offset 67 * @conf_reg: config register offset 68 */ 69 struct imx_pin_reg { 70 s16 mux_reg; 71 s16 conf_reg; 72 }; 73 74 struct imx_pinctrl_soc_info { 75 struct device *dev; 76 const struct pinctrl_pin_desc *pins; 77 unsigned int npins; 78 struct imx_pin_reg *pin_regs; 79 struct imx_pin_group *groups; 80 unsigned int ngroups; 81 unsigned int group_index; 82 struct imx_pmx_func *functions; 83 unsigned int nfunctions; 84 unsigned int flags; 85 }; 86 87 #define SHARE_MUX_CONF_REG 0x1 88 #define ZERO_OFFSET_VALID 0x2 89 90 #define NO_MUX 0x0 91 #define NO_PAD 0x0 92 93 #define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) 94 95 #define PAD_CTL_MASK(len) ((1 << len) - 1) 96 #define IMX_MUX_MASK 0x7 97 #define IOMUXC_CONFIG_SION (0x1 << 4) 98 99 int imx_pinctrl_probe(struct platform_device *pdev, 100 struct imx_pinctrl_soc_info *info); 101 int imx_pinctrl_remove(struct platform_device *pdev); 102 #endif /* __DRIVERS_PINCTRL_IMX_H */ 103