1 /*- 2 * Copyright (c) 2014 Ian Lepore <ian@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef DEV_FDT_CLOCK_H 27 #define DEV_FDT_CLOCK_H 28 29 #include "fdt_clock_if.h" 30 31 /* 32 * Get info about the Nth clock listed in consumer's "clocks" property. 33 * 34 * Returns 0 on success, ENXIO if clock #n not found. 35 */ 36 int fdt_clock_get_info(device_t consumer, int n, struct fdt_clock_info *info); 37 38 /* 39 * Look up "clocks" property in consumer's fdt data and enable or disable all 40 * configured clocks. 41 */ 42 int fdt_clock_enable_all(device_t consumer); 43 int fdt_clock_disable_all(device_t consumer); 44 45 /* 46 * [Un]register the given device instance as a driver that implements the 47 * fdt_clock interface. 48 */ 49 void fdt_clock_register_provider(device_t provider); 50 void fdt_clock_unregister_provider(device_t provider); 51 52 #endif /* DEV_FDT_CLOCK_H */ 53 54