mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 08:14:15 +08:00
a3a7482a0d
Defines prefixed with "CONFIG" should be limited to proper Kconfig options, that are introduced in a Kconfig file. Here, expressions to convert pin configurations to booleans for pull-up, voltage and mA are macro definitions that begin with "CONFIG". To avoid defines prefixed with "CONFIG", rename these defines to begin with "PIN_CONFIG" instead. No functional change. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20221215092128.3954-1-lukas.bulwahn@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright 2012 Freescale Semiconductor, Inc.
|
|
*/
|
|
|
|
#ifndef __PINCTRL_MXS_H
|
|
#define __PINCTRL_MXS_H
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/pinctrl/pinctrl.h>
|
|
|
|
#define SET 0x4
|
|
#define CLR 0x8
|
|
#define TOG 0xc
|
|
|
|
#define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
|
|
#define PINID(bank, pin) ((bank) * 32 + (pin))
|
|
|
|
/*
|
|
* pinmux-id bit field definitions
|
|
*
|
|
* bank: 15..12 (4)
|
|
* pin: 11..4 (8)
|
|
* muxsel: 3..0 (4)
|
|
*/
|
|
#define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff)
|
|
#define MUXID_TO_MUXSEL(m) ((m) & 0xf)
|
|
|
|
#define PINID_TO_BANK(p) ((p) >> 5)
|
|
#define PINID_TO_PIN(p) ((p) % 32)
|
|
|
|
/*
|
|
* pin config bit field definitions
|
|
*
|
|
* pull-up: 6..5 (2)
|
|
* voltage: 4..3 (2)
|
|
* mA: 2..0 (3)
|
|
*
|
|
* MSB of each field is presence bit for the config.
|
|
*/
|
|
#define PULL_PRESENT (1 << 6)
|
|
#define PULL_SHIFT 5
|
|
#define VOL_PRESENT (1 << 4)
|
|
#define VOL_SHIFT 3
|
|
#define MA_PRESENT (1 << 2)
|
|
#define MA_SHIFT 0
|
|
#define PIN_CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1)
|
|
#define PIN_CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1)
|
|
#define PIN_CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3)
|
|
|
|
struct mxs_function {
|
|
const char *name;
|
|
const char **groups;
|
|
unsigned ngroups;
|
|
};
|
|
|
|
struct mxs_group {
|
|
const char *name;
|
|
unsigned int *pins;
|
|
unsigned npins;
|
|
u8 *muxsel;
|
|
u8 config;
|
|
};
|
|
|
|
struct mxs_regs {
|
|
u16 muxsel;
|
|
u16 drive;
|
|
u16 pull;
|
|
};
|
|
|
|
struct mxs_pinctrl_soc_data {
|
|
const struct mxs_regs *regs;
|
|
const struct pinctrl_pin_desc *pins;
|
|
unsigned npins;
|
|
struct mxs_function *functions;
|
|
unsigned nfunctions;
|
|
struct mxs_group *groups;
|
|
unsigned ngroups;
|
|
};
|
|
|
|
int mxs_pinctrl_probe(struct platform_device *pdev,
|
|
struct mxs_pinctrl_soc_data *soc);
|
|
|
|
#endif /* __PINCTRL_MXS_H */
|