30612cd900
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>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
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* IMX pinmux core definitions
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*
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* Copyright (C) 2012 Freescale Semiconductor, Inc.
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* Copyright (C) 2012 Linaro Ltd.
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*
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* Author: Dong Aisheng <dong.aisheng@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __DRIVERS_PINCTRL_IMX1_H
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#define __DRIVERS_PINCTRL_IMX1_H
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struct platform_device;
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/**
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* struct imx1_pin - describes an IMX1/21/27 pin.
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* @pin_id: ID of the described pin.
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* @mux_id: ID of the mux setup.
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* @config: Configuration of the pin (currently only pullup-enable).
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*/
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struct imx1_pin {
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unsigned int pin_id;
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unsigned int mux_id;
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unsigned long config;
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};
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/**
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* struct imx1_pin_group - describes an IMX pin group
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* @name: the name of this specific pin group
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* @pins: an array of imx1_pin structs used in this group
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* @npins: the number of pins in this group array, i.e. the number of
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* elements in .pins so we can iterate over that array
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*/
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struct imx1_pin_group {
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const char *name;
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unsigned int *pin_ids;
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struct imx1_pin *pins;
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unsigned npins;
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};
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/**
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* struct imx1_pmx_func - describes IMX pinmux functions
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* @name: the name of this specific function
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* @groups: corresponding pin groups
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* @num_groups: the number of groups
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*/
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struct imx1_pmx_func {
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const char *name;
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const char **groups;
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unsigned num_groups;
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};
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struct imx1_pinctrl_soc_info {
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struct device *dev;
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const struct pinctrl_pin_desc *pins;
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unsigned int npins;
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struct imx1_pin_group *groups;
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unsigned int ngroups;
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struct imx1_pmx_func *functions;
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unsigned int nfunctions;
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};
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#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
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int imx1_pinctrl_core_probe(struct platform_device *pdev,
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struct imx1_pinctrl_soc_info *info);
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int imx1_pinctrl_core_remove(struct platform_device *pdev);
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#endif /* __DRIVERS_PINCTRL_IMX1_H */
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