drivers/pinctrl/freescale/pinctrl-imx1.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * IMX pinmux core definitions
   4  *
   5  * Copyright (C) 2012 Freescale Semiconductor, Inc.
   6  * Copyright (C) 2012 Linaro Ltd.
   7  *
   8  * Author: Dong Aisheng <dong.aisheng@linaro.org>
   9  */
  10
  11 #ifndef __DRIVERS_PINCTRL_IMX1_H
  12 #define __DRIVERS_PINCTRL_IMX1_H
  13
  14 struct platform_device;
  15
  16 /**
  17  * struct imx1_pin - describes an IMX1/21/27 pin.
  18  * @pin_id: ID of the described pin.
  19  * @mux_id: ID of the mux setup.
  20  * @config: Configuration of the pin (currently only pullup-enable).
  21  */
  22 struct imx1_pin {
  23         unsigned int pin_id;
  24         unsigned int mux_id;
  25         unsigned long config;
  26 };
  27
  28 /**
  29  * struct imx1_pin_group - describes an IMX pin group
  30  * @name: the name of this specific pin group
  31  * @pins: an array of imx1_pin structs used in this group
  32  * @npins: the number of pins in this group array, i.e. the number of
  33  *      elements in .pins so we can iterate over that array
  34  */
  35 struct imx1_pin_group {
  36         const char *name;
  37         unsigned int *pin_ids;
  38         struct imx1_pin *pins;
  39         unsigned npins;
  40 };
  41
  42 /**
  43  * struct imx1_pmx_func - describes IMX pinmux functions
  44  * @name: the name of this specific function
  45  * @groups: corresponding pin groups
  46  * @num_groups: the number of groups
  47  */
  48 struct imx1_pmx_func {
  49         const char *name;
  50         const char **groups;
  51         unsigned num_groups;
  52 };
  53
  54 struct imx1_pinctrl_soc_info {
  55         struct device *dev;
  56         const struct pinctrl_pin_desc *pins;
  57         unsigned int npins;
  58         struct imx1_pin_group *groups;
  59         unsigned int ngroups;
  60         struct imx1_pmx_func *functions;
  61         unsigned int nfunctions;
  62 };
  63
  64 #define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
  65
  66 int imx1_pinctrl_core_probe(struct platform_device *pdev,
  67                         struct imx1_pinctrl_soc_info *info);
  68 #endif /* __DRIVERS_PINCTRL_IMX1_H */