freebsd-dev/sys/arm/mv/clk/periph_clk_gate.c
2022-04-08 18:31:29 -07:00

83 lines
2.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2021 Semihalf.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <machine/bus.h>
#include <dev/fdt/simplebus.h>
#include <dev/extres/clk/clk.h>
#include <dev/extres/clk/clk_div.h>
#include <dev/extres/clk/clk_fixed.h>
#include <dev/extres/clk/clk_gate.h>
#include <dev/extres/clk/clk_mux.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include "clkdev_if.h"
#include "periph.h"
/*
* Regsiter gate clock (disable or enable clock).
*/
int
a37x0_periph_gate_register_gate(struct clkdom *clkdom,
struct a37x0_periph_clknode_def *device_def)
{
struct clk_gate_def *gate;
const char *parent_name;
int error, dev_id;
dev_id = device_def->common_def.device_id;
gate = &device_def->clk_def.gate.gate;
if (device_def->common_def.pname == NULL)
parent_name = device_def->common_def.xtal;
else
parent_name = device_def->common_def.pname;
a37x0_periph_set_props(&gate->clkdef, &parent_name, 1);
error = a37x0_periph_create_gate(clkdom, gate,
dev_id);
if (error) goto fail;
fail:
return (error);
return (0);
}