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59 lines
2.5 KiB
C
59 lines
2.5 KiB
C
/*-
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* Copyright (c) 2014 Ian Lepore <ian@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef DEV_FDT_PINCTRL_H
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#define DEV_FDT_PINCTRL_H
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#include "fdt_pinctrl_if.h"
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/*
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* Configure pins by name or index. This looks up the pinctrl-N property in
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* client's fdt data by index or name, and passes each handle in it to the
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* pinctrl driver for configuration.
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*/
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int fdt_pinctrl_configure(device_t client, u_int index);
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int fdt_pinctrl_configure_by_name(device_t client, const char * name);
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/*
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* Register a pinctrl driver so that it can be used by other devices which call
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* fdt_pinctrl_configure(). The pinprop argument is the name of a property that
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* identifies each descendent of the pinctrl node which is a pin configuration
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* node whose xref phandle can be passed to FDT_PINCTRL_CONFIGURE(). If this is
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* NULL, every descendant node is registered.
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*/
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int fdt_pinctrl_register(device_t pinctrl, const char *pinprop);
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/*
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* Walk the device tree and configure pins for each enabled device whose
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* pinctrl-0 property contains references to nodes which are children of the
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* given pinctrl device. This helper routine is for use by pinctrl drivers.
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*/
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int fdt_pinctrl_configure_tree(device_t pinctrl);
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#endif /* DEV_FDT_PINCTRL_H */
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