projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 17723111 SG |
1 | /* |
| 2 | * Copyright 2012 Freescale Semiconductor, Inc. | |
| 3 | * | |
| 4 | * The code contained herein is licensed under the GNU General Public | |
| 5 | * License. You may obtain a copy of the GNU General Public License | |
| 6 | * Version 2 or later at the following locations: | |
| 7 | * | |
| 8 | * http://www.opensource.org/licenses/gpl-license.html | |
| 9 | * http://www.gnu.org/copyleft/gpl.html | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef __PINCTRL_MXS_H | |
| 13 | #define __PINCTRL_MXS_H | |
| 14 | ||
| 15 | #include <linux/platform_device.h> | |
| 16 | #include <linux/pinctrl/pinctrl.h> | |
| 17 | ||
| 18 | #define SET 0x4 | |
| 19 | #define CLR 0x8 | |
| 20 | #define TOG 0xc | |
| 21 | ||
| 22 | #define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) | |
| 23 | #define PINID(bank, pin) ((bank) * 32 + (pin)) | |
| 24 | ||
| 25 | /* | |
| 26 | * pinmux-id bit field definitions | |
| 27 | * | |
| 28 | * bank: 15..12 (4) | |
| 29 | * pin: 11..4 (8) | |
| 30 | * muxsel: 3..0 (4) | |
| 31 | */ | |
| 32 | #define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff) | |
| 33 | #define MUXID_TO_MUXSEL(m) ((m) & 0xf) | |
| 34 | ||
| 35 | #define PINID_TO_BANK(p) ((p) >> 5) | |
| 36 | #define PINID_TO_PIN(p) ((p) % 32) | |
| 37 | ||
| 38 | /* | |
| 39 | * pin config bit field definitions | |
| 40 | * | |
| 41 | * pull-up: 6..5 (2) | |
| 42 | * voltage: 4..3 (2) | |
| 43 | * mA: 2..0 (3) | |
| 44 | * | |
| 45 | * MSB of each field is presence bit for the config. | |
| 46 | */ | |
| 47 | #define PULL_PRESENT (1 << 6) | |
| 48 | #define PULL_SHIFT 5 | |
| 49 | #define VOL_PRESENT (1 << 4) | |
| 50 | #define VOL_SHIFT 3 | |
| 51 | #define MA_PRESENT (1 << 2) | |
| 52 | #define MA_SHIFT 0 | |
| 53 | #define CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1) | |
| 54 | #define CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1) | |
| 55 | #define CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3) | |
| 56 | ||
| 57 | struct mxs_function { | |
| 58 | const char *name; | |
| 59 | const char **groups; | |
| 60 | unsigned ngroups; | |
| 61 | }; | |
| 62 | ||
| 63 | struct mxs_group { | |
| 64 | const char *name; | |
| 65 | unsigned int *pins; | |
| 66 | unsigned npins; | |
| 67 | u8 *muxsel; | |
| 68 | u8 config; | |
| 69 | }; | |
| 70 | ||
| 71 | struct mxs_regs { | |
| 72 | u16 muxsel; | |
| 73 | u16 drive; | |
| 74 | u16 pull; | |
| 75 | }; | |
| 76 | ||
| 77 | struct mxs_pinctrl_soc_data { | |
| 78 | const struct mxs_regs *regs; | |
| 79 | const struct pinctrl_pin_desc *pins; | |
| 80 | unsigned npins; | |
| 81 | struct mxs_function *functions; | |
| 82 | unsigned nfunctions; | |
| 83 | struct mxs_group *groups; | |
| 84 | unsigned ngroups; | |
| 85 | }; | |
| 86 | ||
| 87 | int mxs_pinctrl_probe(struct platform_device *pdev, | |
| 88 | struct mxs_pinctrl_soc_data *soc); | |
| 89 | int mxs_pinctrl_remove(struct platform_device *pdev); | |
| 90 | ||
| 91 | #endif /* __PINCTRL_MXS_H */ |