878ca242eb
support frameworks(i.e. clk/reset/phy/tsensors/fuses...). The framework is still far from perfect and probably doesn't have stable interface yet, but we want to start testing it on more real boards and different architectures.
90 lines
2.8 KiB
C
90 lines
2.8 KiB
C
/*-
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* Copyright 2016 Michal Meloun <mmel@FreeBSD.org>
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, 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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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <dev/fdt/simplebus.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus_subr.h>
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struct ofw_regulator_bus_softc {
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struct simplebus_softc simplebus_sc;
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};
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static int
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ofw_regulator_bus_probe(device_t dev)
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{
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const char *name;
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name = ofw_bus_get_name(dev);
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if (name == NULL || strcmp(name, "regulators") != 0)
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return (ENXIO);
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device_set_desc(dev, "OFW regulators bus");
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return (0);
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}
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static int
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ofw_regulator_bus_attach(device_t dev)
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{
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struct ofw_regulator_bus_softc *sc;
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phandle_t node, child;
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sc = device_get_softc(dev);
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node = ofw_bus_get_node(dev);
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simplebus_init(dev, node);
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for (child = OF_child(node); child > 0; child = OF_peer(child)) {
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simplebus_add_device(dev, child, 0, NULL, -1, NULL);
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}
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return (bus_generic_attach(dev));
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}
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static device_method_t ofw_regulator_bus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ofw_regulator_bus_probe),
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DEVMETHOD(device_attach, ofw_regulator_bus_attach),
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DEVMETHOD_END
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};
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DEFINE_CLASS_1(ofw_regulator_bus, ofw_regulator_bus_driver,
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ofw_regulator_bus_methods, sizeof(struct ofw_regulator_bus_softc),
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simplebus_driver);
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static devclass_t ofw_regulator_bus_devclass;
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EARLY_DRIVER_MODULE(ofw_regulator_bus, simplebus, ofw_regulator_bus_driver,
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ofw_regulator_bus_devclass, 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
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MODULE_VERSION(ofw_regulator_bus, 1);
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