101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
/* $NetBSD: clk.c,v 1.2 2017/04/16 12:28:21 jmcneill Exp $ */
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/*-
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* Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca>
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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,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: clk.c,v 1.2 2017/04/16 12:28:21 jmcneill Exp $");
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#include <sys/param.h>
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#include <dev/clk/clk.h>
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#include <dev/clk/clk_backend.h>
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struct clk *
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clk_get(struct clk_domain *domain, const char *name)
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{
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return domain->funcs->get(domain->priv, name);
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}
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void
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clk_put(struct clk *clk)
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{
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return clk->domain->funcs->put(clk->domain->priv, clk);
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}
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u_int
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clk_get_rate(struct clk *clk)
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{
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return clk->domain->funcs->get_rate(clk->domain->priv, clk);
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}
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int
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clk_set_rate(struct clk *clk, u_int rate)
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{
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if (clk->flags & CLK_SET_RATE_PARENT) {
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return clk_set_rate(clk_get_parent(clk), rate);
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} else if (clk->domain->funcs->set_rate) {
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return clk->domain->funcs->set_rate(clk->domain->priv,
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clk, rate);
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} else {
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return EINVAL;
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}
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}
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int
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clk_enable(struct clk *clk)
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{
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if (clk->domain->funcs->enable)
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return clk->domain->funcs->enable(clk->domain->priv, clk);
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else
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return 0;
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}
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int
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clk_disable(struct clk *clk)
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{
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if (clk->domain->funcs->disable)
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return clk->domain->funcs->disable(clk->domain->priv, clk);
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else
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return EINVAL;
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}
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int
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clk_set_parent(struct clk *clk, struct clk *parent_clk)
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{
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if (clk->domain->funcs->set_parent)
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return clk->domain->funcs->set_parent(clk->domain->priv,
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clk, parent_clk);
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else
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return EINVAL;
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}
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struct clk *
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clk_get_parent(struct clk *clk)
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{
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return clk->domain->funcs->get_parent(clk->domain->priv, clk);
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}
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