Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / arch / arm / plat-nomadik / include / plat / gpio-nomadik.h
blob3ba4d8f8073baf10279e3c69122c822c87d8bb1c
1 /*
2 * Structures and registers for GPIO access in the Nomadik SoC
4 * Copyright (C) 2008 STMicroelectronics
5 * Author: Prafulla WADASKAR <prafulla.wadaskar@st.com>
6 * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __PLAT_NOMADIK_GPIO
14 #define __PLAT_NOMADIK_GPIO
17 * "nmk_gpio" and "NMK_GPIO" stand for "Nomadik GPIO", leaving
18 * the "gpio" namespace for generic and cross-machine functions
21 /* Register in the logic block */
22 #define NMK_GPIO_DAT 0x00
23 #define NMK_GPIO_DATS 0x04
24 #define NMK_GPIO_DATC 0x08
25 #define NMK_GPIO_PDIS 0x0c
26 #define NMK_GPIO_DIR 0x10
27 #define NMK_GPIO_DIRS 0x14
28 #define NMK_GPIO_DIRC 0x18
29 #define NMK_GPIO_SLPC 0x1c
30 #define NMK_GPIO_AFSLA 0x20
31 #define NMK_GPIO_AFSLB 0x24
33 #define NMK_GPIO_RIMSC 0x40
34 #define NMK_GPIO_FIMSC 0x44
35 #define NMK_GPIO_IS 0x48
36 #define NMK_GPIO_IC 0x4c
37 #define NMK_GPIO_RWIMSC 0x50
38 #define NMK_GPIO_FWIMSC 0x54
39 #define NMK_GPIO_WKS 0x58
41 /* Alternate functions: function C is set in hw by setting both A and B */
42 #define NMK_GPIO_ALT_GPIO 0
43 #define NMK_GPIO_ALT_A 1
44 #define NMK_GPIO_ALT_B 2
45 #define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B)
47 /* Pull up/down values */
48 enum nmk_gpio_pull {
49 NMK_GPIO_PULL_NONE,
50 NMK_GPIO_PULL_UP,
51 NMK_GPIO_PULL_DOWN,
54 /* Sleep mode */
55 enum nmk_gpio_slpm {
56 NMK_GPIO_SLPM_INPUT,
57 NMK_GPIO_SLPM_WAKEUP_ENABLE = NMK_GPIO_SLPM_INPUT,
58 NMK_GPIO_SLPM_NOCHANGE,
59 NMK_GPIO_SLPM_WAKEUP_DISABLE = NMK_GPIO_SLPM_NOCHANGE,
62 extern int nmk_gpio_set_slpm(int gpio, enum nmk_gpio_slpm mode);
63 extern int nmk_gpio_set_pull(int gpio, enum nmk_gpio_pull pull);
64 extern int nmk_gpio_set_mode(int gpio, int gpio_mode);
65 extern int nmk_gpio_get_mode(int gpio);
67 extern void nmk_gpio_wakeups_suspend(void);
68 extern void nmk_gpio_wakeups_resume(void);
70 extern void nmk_gpio_read_pull(int gpio_bank, u32 *pull_up);
73 * Platform data to register a block: only the initial gpio/irq number.
75 struct nmk_gpio_platform_data {
76 char *name;
77 int first_gpio;
78 int first_irq;
79 int num_gpio;
80 u32 (*get_secondary_status)(unsigned int bank);
81 void (*set_ioforce)(bool enable);
82 bool supports_sleepmode;
85 #endif /* __PLAT_NOMADIK_GPIO */