clk.c revision 1.2.10.2
1 1.2.10.2 jdolecek /* $NetBSD: clk.c,v 1.2.10.2 2017/12/03 11:37:00 jdolecek Exp $ */ 2 1.2.10.2 jdolecek 3 1.2.10.2 jdolecek /*- 4 1.2.10.2 jdolecek * Copyright (c) 2015 Jared D. McNeill <jmcneill (at) invisible.ca> 5 1.2.10.2 jdolecek * All rights reserved. 6 1.2.10.2 jdolecek * 7 1.2.10.2 jdolecek * Redistribution and use in source and binary forms, with or without 8 1.2.10.2 jdolecek * modification, are permitted provided that the following conditions 9 1.2.10.2 jdolecek * are met: 10 1.2.10.2 jdolecek * 1. Redistributions of source code must retain the above copyright 11 1.2.10.2 jdolecek * notice, this list of conditions and the following disclaimer. 12 1.2.10.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.10.2 jdolecek * notice, this list of conditions and the following disclaimer in the 14 1.2.10.2 jdolecek * documentation and/or other materials provided with the distribution. 15 1.2.10.2 jdolecek * 16 1.2.10.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.2.10.2 jdolecek * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.2.10.2 jdolecek * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.2.10.2 jdolecek * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.2.10.2 jdolecek * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 1.2.10.2 jdolecek * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.2.10.2 jdolecek * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 1.2.10.2 jdolecek * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 1.2.10.2 jdolecek * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.2.10.2 jdolecek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.2.10.2 jdolecek * SUCH DAMAGE. 27 1.2.10.2 jdolecek */ 28 1.2.10.2 jdolecek 29 1.2.10.2 jdolecek #include <sys/cdefs.h> 30 1.2.10.2 jdolecek __KERNEL_RCSID(0, "$NetBSD: clk.c,v 1.2.10.2 2017/12/03 11:37:00 jdolecek Exp $"); 31 1.2.10.2 jdolecek 32 1.2.10.2 jdolecek #include <sys/param.h> 33 1.2.10.2 jdolecek 34 1.2.10.2 jdolecek #include <dev/clk/clk.h> 35 1.2.10.2 jdolecek #include <dev/clk/clk_backend.h> 36 1.2.10.2 jdolecek 37 1.2.10.2 jdolecek struct clk * 38 1.2.10.2 jdolecek clk_get(struct clk_domain *domain, const char *name) 39 1.2.10.2 jdolecek { 40 1.2.10.2 jdolecek return domain->funcs->get(domain->priv, name); 41 1.2.10.2 jdolecek } 42 1.2.10.2 jdolecek 43 1.2.10.2 jdolecek void 44 1.2.10.2 jdolecek clk_put(struct clk *clk) 45 1.2.10.2 jdolecek { 46 1.2.10.2 jdolecek return clk->domain->funcs->put(clk->domain->priv, clk); 47 1.2.10.2 jdolecek } 48 1.2.10.2 jdolecek 49 1.2.10.2 jdolecek u_int 50 1.2.10.2 jdolecek clk_get_rate(struct clk *clk) 51 1.2.10.2 jdolecek { 52 1.2.10.2 jdolecek return clk->domain->funcs->get_rate(clk->domain->priv, clk); 53 1.2.10.2 jdolecek } 54 1.2.10.2 jdolecek 55 1.2.10.2 jdolecek int 56 1.2.10.2 jdolecek clk_set_rate(struct clk *clk, u_int rate) 57 1.2.10.2 jdolecek { 58 1.2.10.2 jdolecek if (clk->flags & CLK_SET_RATE_PARENT) { 59 1.2.10.2 jdolecek return clk_set_rate(clk_get_parent(clk), rate); 60 1.2.10.2 jdolecek } else if (clk->domain->funcs->set_rate) { 61 1.2.10.2 jdolecek return clk->domain->funcs->set_rate(clk->domain->priv, 62 1.2.10.2 jdolecek clk, rate); 63 1.2.10.2 jdolecek } else { 64 1.2.10.2 jdolecek return EINVAL; 65 1.2.10.2 jdolecek } 66 1.2.10.2 jdolecek } 67 1.2.10.2 jdolecek 68 1.2.10.2 jdolecek int 69 1.2.10.2 jdolecek clk_enable(struct clk *clk) 70 1.2.10.2 jdolecek { 71 1.2.10.2 jdolecek if (clk->domain->funcs->enable) 72 1.2.10.2 jdolecek return clk->domain->funcs->enable(clk->domain->priv, clk); 73 1.2.10.2 jdolecek else 74 1.2.10.2 jdolecek return 0; 75 1.2.10.2 jdolecek } 76 1.2.10.2 jdolecek 77 1.2.10.2 jdolecek int 78 1.2.10.2 jdolecek clk_disable(struct clk *clk) 79 1.2.10.2 jdolecek { 80 1.2.10.2 jdolecek if (clk->domain->funcs->disable) 81 1.2.10.2 jdolecek return clk->domain->funcs->disable(clk->domain->priv, clk); 82 1.2.10.2 jdolecek else 83 1.2.10.2 jdolecek return EINVAL; 84 1.2.10.2 jdolecek } 85 1.2.10.2 jdolecek 86 1.2.10.2 jdolecek int 87 1.2.10.2 jdolecek clk_set_parent(struct clk *clk, struct clk *parent_clk) 88 1.2.10.2 jdolecek { 89 1.2.10.2 jdolecek if (clk->domain->funcs->set_parent) 90 1.2.10.2 jdolecek return clk->domain->funcs->set_parent(clk->domain->priv, 91 1.2.10.2 jdolecek clk, parent_clk); 92 1.2.10.2 jdolecek else 93 1.2.10.2 jdolecek return EINVAL; 94 1.2.10.2 jdolecek } 95 1.2.10.2 jdolecek 96 1.2.10.2 jdolecek struct clk * 97 1.2.10.2 jdolecek clk_get_parent(struct clk *clk) 98 1.2.10.2 jdolecek { 99 1.2.10.2 jdolecek return clk->domain->funcs->get_parent(clk->domain->priv, clk); 100 1.2.10.2 jdolecek } 101
Indexes created Fri Oct 03 02:09:57 GMT 2025