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84 lines
1.7 KiB
84 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* |
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* Copyright 2012 Freescale Semiconductor, Inc. |
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*/ |
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#ifndef __PINCTRL_MXS_H |
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#define __PINCTRL_MXS_H |
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#include <linux/platform_device.h> |
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#include <linux/pinctrl/pinctrl.h> |
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#define SET 0x4 |
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#define CLR 0x8 |
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#define TOG 0xc |
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#define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) |
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#define PINID(bank, pin) ((bank) * 32 + (pin)) |
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/* |
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* pinmux-id bit field definitions |
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* |
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* bank: 15..12 (4) |
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* pin: 11..4 (8) |
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* muxsel: 3..0 (4) |
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*/ |
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#define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff) |
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#define MUXID_TO_MUXSEL(m) ((m) & 0xf) |
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#define PINID_TO_BANK(p) ((p) >> 5) |
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#define PINID_TO_PIN(p) ((p) % 32) |
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/* |
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* pin config bit field definitions |
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* |
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* pull-up: 6..5 (2) |
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* voltage: 4..3 (2) |
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* mA: 2..0 (3) |
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* |
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* MSB of each field is presence bit for the config. |
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*/ |
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#define PULL_PRESENT (1 << 6) |
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#define PULL_SHIFT 5 |
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#define VOL_PRESENT (1 << 4) |
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#define VOL_SHIFT 3 |
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#define MA_PRESENT (1 << 2) |
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#define MA_SHIFT 0 |
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#define CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1) |
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#define CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1) |
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#define CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3) |
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struct mxs_function { |
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const char *name; |
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const char **groups; |
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unsigned ngroups; |
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}; |
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struct mxs_group { |
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const char *name; |
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unsigned int *pins; |
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unsigned npins; |
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u8 *muxsel; |
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u8 config; |
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}; |
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struct mxs_regs { |
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u16 muxsel; |
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u16 drive; |
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u16 pull; |
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}; |
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struct mxs_pinctrl_soc_data { |
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const struct mxs_regs *regs; |
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const struct pinctrl_pin_desc *pins; |
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unsigned npins; |
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struct mxs_function *functions; |
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unsigned nfunctions; |
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struct mxs_group *groups; |
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unsigned ngroups; |
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}; |
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int mxs_pinctrl_probe(struct platform_device *pdev, |
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struct mxs_pinctrl_soc_data *soc); |
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#endif /* __PINCTRL_MXS_H */
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