| Robert Jarzmik | 7331771 | 2015-11-21 19:04:49 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Marvell PXA2xx family pin control |
| 3 | * |
| 4 | * Copyright (C) 2015 Robert Jarzmik |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #ifndef __PINCTRL_PXA_H |
| 13 | #define __PINCTRL_PXA_H |
| 14 | |
| 15 | #define PXA_FUNCTION(_dir, _af, _name) \ |
| 16 | { \ |
| 17 | .name = _name, \ |
| 18 | .muxval = (_dir | (_af << 1)), \ |
| 19 | } |
| 20 | |
| 21 | #define PXA_PIN(_pin, funcs...) \ |
| 22 | { \ |
| 23 | .pin = _pin, \ |
| 24 | .functions = (struct pxa_desc_function[]){ \ |
| 25 | funcs, { } }, \ |
| 26 | } |
| 27 | |
| 28 | #define PXA_GPIO_PIN(_pin, funcs...) \ |
| 29 | { \ |
| 30 | .pin = _pin, \ |
| 31 | .functions = (struct pxa_desc_function[]){ \ |
| 32 | PXA_FUNCTION(0, 0, "gpio_in"), \ |
| 33 | PXA_FUNCTION(1, 0, "gpio_out"), \ |
| 34 | funcs, { } }, \ |
| 35 | } |
| 36 | |
| 37 | #define PXA_GPIO_ONLY_PIN(_pin) \ |
| 38 | { \ |
| 39 | .pin = _pin, \ |
| 40 | .functions = (struct pxa_desc_function[]){ \ |
| 41 | PXA_FUNCTION(0, 0, "gpio_in"), \ |
| 42 | PXA_FUNCTION(1, 0, "gpio_out"), \ |
| 43 | { } }, \ |
| 44 | } |
| 45 | |
| 46 | #define PXA_PINCTRL_PIN(pin) \ |
| 47 | PINCTRL_PIN(pin, "P" #pin) |
| 48 | |
| 49 | struct pxa_desc_function { |
| 50 | const char *name; |
| 51 | u8 muxval; |
| 52 | }; |
| 53 | |
| 54 | struct pxa_desc_pin { |
| 55 | struct pinctrl_pin_desc pin; |
| 56 | struct pxa_desc_function *functions; |
| 57 | }; |
| 58 | |
| 59 | struct pxa_pinctrl_group { |
| 60 | const char *name; |
| 61 | unsigned pin; |
| 62 | }; |
| 63 | |
| 64 | struct pxa_pinctrl_function { |
| 65 | const char *name; |
| 66 | const char **groups; |
| 67 | unsigned ngroups; |
| 68 | }; |
| 69 | |
| 70 | struct pxa_pinctrl { |
| 71 | spinlock_t lock; |
| 72 | void __iomem **base_gafr; |
| 73 | void __iomem **base_gpdr; |
| 74 | void __iomem **base_pgsr; |
| 75 | struct device *dev; |
| 76 | struct pinctrl_desc desc; |
| 77 | struct pinctrl_dev *pctl_dev; |
| 78 | unsigned npins; |
| 79 | const struct pxa_desc_pin *ppins; |
| 80 | unsigned ngroups; |
| 81 | struct pxa_pinctrl_group *groups; |
| 82 | unsigned nfuncs; |
| 83 | struct pxa_pinctrl_function *functions; |
| 84 | char *name; |
| 85 | }; |
| 86 | |
| 87 | int pxa2xx_pinctrl_init(struct platform_device *pdev, |
| 88 | const struct pxa_desc_pin *ppins, int npins, |
| 89 | void __iomem *base_gafr[], void __iomem *base_gpdr[], |
| 90 | void __iomem *base_gpsr[]); |
| 91 | |
| 92 | #endif /* __PINCTRL_PXA_H */ |