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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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e566fc11ea
Now using group_desc structure instead of imx_pin_group. Also leveraging generic functions to retrieve groups count/name/pins. The imx_free_pingroups function can be removed since it is now handled by the core driver during unregister. Finally the device tree parsing is moved after the pinctrl driver registration since this latter initializes the radix trees. Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
86 lines
2.1 KiB
C
86 lines
2.1 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_IMX_H
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#define __DRIVERS_PINCTRL_IMX_H
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struct platform_device;
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/**
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* struct imx_pin - describes a single i.MX pin
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* @pin: the pin_id of this pin
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* @mux_mode: the mux mode for this pin.
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* @input_reg: the select input register offset for this pin if any
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* 0 if no select input setting needed.
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* @input_val: the select input value for this pin.
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* @configs: the config for this pin.
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*/
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struct imx_pin {
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unsigned int pin;
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unsigned int mux_mode;
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u16 input_reg;
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unsigned int input_val;
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unsigned long config;
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};
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/**
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* struct imx_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 imx_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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/**
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* struct imx_pin_reg - describe a pin reg map
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* @mux_reg: mux register offset
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* @conf_reg: config register offset
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*/
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struct imx_pin_reg {
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s16 mux_reg;
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s16 conf_reg;
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};
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struct imx_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 imx_pin_reg *pin_regs;
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unsigned int group_index;
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unsigned int nfunctions;
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unsigned int flags;
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const char *gpr_compatible;
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struct radix_tree_root ftree;
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struct mutex mutex;
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};
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#define SHARE_MUX_CONF_REG 0x1
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#define ZERO_OFFSET_VALID 0x2
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#define NO_MUX 0x0
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#define NO_PAD 0x0
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#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
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#define PAD_CTL_MASK(len) ((1 << len) - 1)
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#define IMX_MUX_MASK 0x7
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#define IOMUXC_CONFIG_SION (0x1 << 4)
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int imx_pinctrl_probe(struct platform_device *pdev,
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struct imx_pinctrl_soc_info *info);
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#endif /* __DRIVERS_PINCTRL_IMX_H */
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