drivers/pinctrl/pinctrl-imx1.h

   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_IMX1_H
  16 #define __DRIVERS_PINCTRL_IMX1_H
  17
  18 struct platform_device;
  19
  20 /**
  21  * struct imx1_pin - describes an IMX1/21/27 pin.
  22  * @pin_id: ID of the described pin.
  23  * @mux_id: ID of the mux setup.
  24  * @config: Configuration of the pin (currently only pullup-enable).
  25  */
  26 struct imx1_pin {
  27         unsigned int pin_id;
  28         unsigned int mux_id;
  29         unsigned long config;
  30 };
  31
  32 /**
  33  * struct imx1_pin_group - describes an IMX pin group
  34  * @name: the name of this specific pin group
  35  * @pins: an array of imx1_pin structs used in this group
  36  * @npins: the number of pins in this group array, i.e. the number of
  37  *      elements in .pins so we can iterate over that array
  38  */
  39 struct imx1_pin_group {
  40         const char *name;
  41         unsigned int *pin_ids;
  42         struct imx1_pin *pins;
  43         unsigned npins;
  44 };
  45
  46 /**
  47  * struct imx1_pmx_func - describes IMX pinmux functions
  48  * @name: the name of this specific function
  49  * @groups: corresponding pin groups
  50  * @num_groups: the number of groups
  51  */
  52 struct imx1_pmx_func {
  53         const char *name;
  54         const char **groups;
  55         unsigned num_groups;
  56 };
  57
  58 struct imx1_pinctrl_soc_info {
  59         struct device *dev;
  60         const struct pinctrl_pin_desc *pins;
  61         unsigned int npins;
  62         struct imx1_pin_group *groups;
  63         unsigned int ngroups;
  64         struct imx1_pmx_func *functions;
  65         unsigned int nfunctions;
  66 };
  67
  68 #define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
  69
  70 int imx1_pinctrl_core_probe(struct platform_device *pdev,
  71                         struct imx1_pinctrl_soc_info *info);
  72 int imx1_pinctrl_core_remove(struct platform_device *pdev);
  73 #endif /* __DRIVERS_PINCTRL_IMX1_H */