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54 lines
2 KiB
C
54 lines
2 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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#ifndef DEV_FDT_CLOCK_H
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#define DEV_FDT_CLOCK_H
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#include "fdt_clock_if.h"
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/*
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* Get info about the Nth clock listed in consumer's "clocks" property.
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*
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* Returns 0 on success, ENXIO if clock #n not found.
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*/
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int fdt_clock_get_info(device_t consumer, int n, struct fdt_clock_info *info);
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/*
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* Look up "clocks" property in consumer's fdt data and enable or disable all
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* configured clocks.
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*/
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int fdt_clock_enable_all(device_t consumer);
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int fdt_clock_disable_all(device_t consumer);
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/*
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* [Un]register the given device instance as a driver that implements the
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* fdt_clock interface.
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*/
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void fdt_clock_register_provider(device_t provider);
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void fdt_clock_unregister_provider(device_t provider);
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#endif /* DEV_FDT_CLOCK_H */
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