periph.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2021 Semihalf.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD$");
   30 
   31 #include <sys/param.h>
   32 #include <sys/bus.h>
   33 #include <sys/kernel.h>
   34 #include <sys/module.h>
   35 #include <sys/mutex.h>
   36 #include <sys/rman.h>
   37 #include <machine/bus.h>
   38 
   39 #include <dev/fdt/simplebus.h>
   40 
   41 #include <dev/extres/clk/clk.h>
   42 #include <dev/extres/clk/clk_div.h>
   43 #include <dev/extres/clk/clk_fixed.h>
   44 #include <dev/extres/clk/clk_gate.h>
   45 #include <dev/extres/clk/clk_mux.h>
   46 
   47 #include <dev/ofw/ofw_bus.h>
   48 #include <dev/ofw/ofw_bus_subr.h>
   49 
   50 #include "clkdev_if.h"
   51 #include "periph.h"
   52 
   53 int
   54 a37x0_periph_create_mux(struct clkdom *clkdom,
   55     struct clk_mux_def *mux, int id)
   56 {
   57         int error;
   58 
   59         mux->clkdef.id = id;
   60 
   61         error = clknode_mux_register(clkdom, mux);
   62         if (error != 0) {
   63                 printf("Failed to create %s: %d\n", mux->clkdef.name, error);
   64                 return (error);
   65         }
   66 
   67         return (0);
   68 }
   69 
   70 int
   71 a37x0_periph_create_div(struct clkdom *clkdom,
   72     struct clk_div_def *div, int id)
   73 {
   74         int error;
   75 
   76         div->clkdef.id = id;
   77 
   78         error = clknode_div_register(clkdom, div);
   79         if (error != 0) {
   80                 printf("Failed to register %s: %d\n", div->clkdef.name, error);
   81                 return (error);
   82         }
   83 
   84         return (0);
   85 }
   86 
   87 int
   88 a37x0_periph_create_gate(struct clkdom *clkdom,
   89     struct clk_gate_def *gate, int id)
   90 {
   91         int error;
   92 
   93         gate->clkdef.id = id;
   94 
   95         error = clknode_gate_register(clkdom, gate);
   96         if (error != 0) {
   97                 printf("Failed to create %s:%d\n", gate->clkdef.name, error);
   98                 return (error);
   99         }
  100 
  101         return (0);
  102 }
  103 
  104 void
  105 a37x0_periph_set_props(struct clknode_init_def *clkdef,
  106     const char **parent_names, unsigned int parent_cnt)
  107 {
  108 
  109         clkdef->parent_names = parent_names;
  110         clkdef->parent_cnt = parent_cnt;
  111 }
  112

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FreeBSD/Linux Kernel Cross Reference sys/arm/mv/clk/periph.c

FreeBSD/Linux Kernel Cross Reference
sys/arm/mv/clk/periph.c