projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 73317712 RJ |
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 */ |