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 #endif /* __DRIVERS_PINCTRL_IMX1_H */
73