linux-hardened/drivers/pinctrl/pinctrl-imx1.h
Markus Pargmann 30612cd900 pinctrl: imx1 core driver
Core driver for register formats of imx1/imx21/imx27 processors.

The pins of those processors are grouped into ports. Each port has 32
pins. The pins mux configuration is controlled by registers with 1 or 2
bit per pin, depending on the specific control register.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-29 06:54:37 -07:00

73 lines
1.9 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_IMX1_H
#define __DRIVERS_PINCTRL_IMX1_H
struct platform_device;
/**
* struct imx1_pin - describes an IMX1/21/27 pin.
* @pin_id: ID of the described pin.
* @mux_id: ID of the mux setup.
* @config: Configuration of the pin (currently only pullup-enable).
*/
struct imx1_pin {
unsigned int pin_id;
unsigned int mux_id;
unsigned long config;
};
/**
* struct imx1_pin_group - describes an IMX pin group
* @name: the name of this specific pin group
* @pins: an array of imx1_pin structs used in this 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
*/
struct imx1_pin_group {
const char *name;
unsigned int *pin_ids;
struct imx1_pin *pins;
unsigned npins;
};
/**
* struct imx1_pmx_func - describes IMX pinmux functions
* @name: the name of this specific function
* @groups: corresponding pin groups
* @num_groups: the number of groups
*/
struct imx1_pmx_func {
const char *name;
const char **groups;
unsigned num_groups;
};
struct imx1_pinctrl_soc_info {
struct device *dev;
const struct pinctrl_pin_desc *pins;
unsigned int npins;
struct imx1_pin_group *groups;
unsigned int ngroups;
struct imx1_pmx_func *functions;
unsigned int nfunctions;
};
#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
int imx1_pinctrl_core_probe(struct platform_device *pdev,
struct imx1_pinctrl_soc_info *info);
int imx1_pinctrl_core_remove(struct platform_device *pdev);
#endif /* __DRIVERS_PINCTRL_IMX1_H */