mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
3dac1918a4
The pinctrl driver initialized the register offsets for the pins with 0. On Vybrid an offset of 0 is a valid offset for the pinctrl mux register. So far, this was solved using the ZERO_OFFSET_VALID flag which allowed offsets of 0. However, this does not allow to verify whether a pins struct imx_pmx_func was initialized or not. Use signed offset values for register offsets and initialize those with -1 in order to detect uninitialized offset values reliable. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
/*
|
|
* IMX pinmux core definitions
|
|
*
|
|
* Copyright (C) 2012 Freescale Semiconductor, Inc.
|
|
* Copyright (C) 2012 Linaro Ltd.
|
|
*
|
|
* Author: Dong Aisheng <dong.aisheng@linaro.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef __DRIVERS_PINCTRL_IMX_H
|
|
#define __DRIVERS_PINCTRL_IMX_H
|
|
|
|
struct platform_device;
|
|
|
|
/**
|
|
* struct imx_pin_group - describes a single i.MX pin
|
|
* @pin: the pin_id of this pin
|
|
* @mux_mode: the mux mode for this pin.
|
|
* @input_reg: the select input register offset for this pin if any
|
|
* 0 if no select input setting needed.
|
|
* @input_val: the select input value for this pin.
|
|
* @configs: the config for this pin.
|
|
*/
|
|
struct imx_pin {
|
|
unsigned int pin;
|
|
unsigned int mux_mode;
|
|
u16 input_reg;
|
|
unsigned int input_val;
|
|
unsigned long config;
|
|
};
|
|
|
|
/**
|
|
* struct imx_pin_group - describes an IMX pin group
|
|
* @name: the name of this specific pin group
|
|
* @npins: the number of pins in this group array, i.e. the number of
|
|
* elements in .pins so we can iterate over that array
|
|
* @pin_ids: array of pin_ids. pinctrl forces us to maintain such an array
|
|
* @pins: array of pins
|
|
*/
|
|
struct imx_pin_group {
|
|
const char *name;
|
|
unsigned npins;
|
|
unsigned int *pin_ids;
|
|
struct imx_pin *pins;
|
|
};
|
|
|
|
/**
|
|
* struct imx_pmx_func - describes IMX pinmux functions
|
|
* @name: the name of this specific function
|
|
* @groups: corresponding pin groups
|
|
* @num_groups: the number of groups
|
|
*/
|
|
struct imx_pmx_func {
|
|
const char *name;
|
|
const char **groups;
|
|
unsigned num_groups;
|
|
};
|
|
|
|
/**
|
|
* struct imx_pin_reg - describe a pin reg map
|
|
* @mux_reg: mux register offset
|
|
* @conf_reg: config register offset
|
|
*/
|
|
struct imx_pin_reg {
|
|
s16 mux_reg;
|
|
s16 conf_reg;
|
|
};
|
|
|
|
struct imx_pinctrl_soc_info {
|
|
struct device *dev;
|
|
const struct pinctrl_pin_desc *pins;
|
|
unsigned int npins;
|
|
struct imx_pin_reg *pin_regs;
|
|
struct imx_pin_group *groups;
|
|
unsigned int ngroups;
|
|
struct imx_pmx_func *functions;
|
|
unsigned int nfunctions;
|
|
unsigned int flags;
|
|
};
|
|
|
|
#define SHARE_MUX_CONF_REG 0x1
|
|
|
|
#define NO_MUX 0x0
|
|
#define NO_PAD 0x0
|
|
|
|
#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
|
|
|
|
#define PAD_CTL_MASK(len) ((1 << len) - 1)
|
|
#define IMX_MUX_MASK 0x7
|
|
#define IOMUXC_CONFIG_SION (0x1 << 4)
|
|
|
|
int imx_pinctrl_probe(struct platform_device *pdev,
|
|
struct imx_pinctrl_soc_info *info);
|
|
int imx_pinctrl_remove(struct platform_device *pdev);
|
|
#endif /* __DRIVERS_PINCTRL_IMX_H */
|