1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright 2012 Freescale Semiconductor, Inc. 4 */ 5 6 #ifndef __PINCTRL_MXS_H 7 #define __PINCTRL_MXS_H 8 9 #include <linux/platform_device.h> 10 #include <linux/pinctrl/pinctrl.h> 11 12 #define SET 0x4 13 #define CLR 0x8 14 #define TOG 0xc 15 16 #define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) 17 #define PINID(bank, pin) ((bank) * 32 + (pin)) 18 19 /* 20 * pinmux-id bit field definitions 21 * 22 * bank: 15..12 (4) 23 * pin: 11..4 (8) 24 * muxsel: 3..0 (4) 25 */ 26 #define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff) 27 #define MUXID_TO_MUXSEL(m) ((m) & 0xf) 28 29 #define PINID_TO_BANK(p) ((p) >> 5) 30 #define PINID_TO_PIN(p) ((p) % 32) 31 32 /* 33 * pin config bit field definitions 34 * 35 * pull-up: 6..5 (2) 36 * voltage: 4..3 (2) 37 * mA: 2..0 (3) 38 * 39 * MSB of each field is presence bit for the config. 40 */ 41 #define PULL_PRESENT (1 << 6) 42 #define PULL_SHIFT 5 43 #define VOL_PRESENT (1 << 4) 44 #define VOL_SHIFT 3 45 #define MA_PRESENT (1 << 2) 46 #define MA_SHIFT 0 47 #define CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1) 48 #define CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1) 49 #define CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3) 50 51 struct mxs_function { 52 const char *name; 53 const char **groups; 54 unsigned ngroups; 55 }; 56 57 struct mxs_group { 58 const char *name; 59 unsigned int *pins; 60 unsigned npins; 61 u8 *muxsel; 62 u8 config; 63 }; 64 65 struct mxs_regs { 66 u16 muxsel; 67 u16 drive; 68 u16 pull; 69 }; 70 71 struct mxs_pinctrl_soc_data { 72 const struct mxs_regs *regs; 73 const struct pinctrl_pin_desc *pins; 74 unsigned npins; 75 struct mxs_function *functions; 76 unsigned nfunctions; 77 struct mxs_group *groups; 78 unsigned ngroups; 79 }; 80 81 int mxs_pinctrl_probe(struct platform_device *pdev, 82 struct mxs_pinctrl_soc_data *soc); 83 84 #endif /* __PINCTRL_MXS_H */ 85