Add a driver for ACT8846 used as PMIC for RK3288 SoC.
This commit is contained in:
Michal Meloun
parent
454f1fdec1
commit
4388c70c08
258
sys/dev/iicbus/pmic/act8846.c
Normal file
258
sys/dev/iicbus/pmic/act8846.c
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@ -0,0 +1,258 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org>
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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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/*
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* ACT8846 PMIC driver
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/rman.h>
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#include <sys/sx.h>
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#include <machine/bus.h>
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#include <dev/extres/regulator/regulator.h>
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#include <dev/fdt/fdt_pinctrl.h>
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#include <dev/iicbus/iiconf.h>
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#include <dev/iicbus/iicbus.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/iicbus/pmic/act8846.h>
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#include "regdev_if.h"
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static struct ofw_compat_data compat_data[] = {
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{"active-semi,act8846", 1},
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{NULL, 0}
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};
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#define LOCK(_sc) sx_xlock(&(_sc)->lock)
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#define UNLOCK(_sc) sx_xunlock(&(_sc)->lock)
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#define LOCK_INIT(_sc) sx_init(&(_sc)->lock, "act8846")
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#define LOCK_DESTROY(_sc) sx_destroy(&(_sc)->lock);
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#define ASSERT_LOCKED(_sc) sx_assert(&(_sc)->lock, SA_XLOCKED);
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#define ASSERT_UNLOCKED(_sc) sx_assert(&(_sc)->lock, SA_UNLOCKED);
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/*
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* Raw register access function.
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*/
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int
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act8846_read(struct act8846_softc *sc, uint8_t reg, uint8_t *val)
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{
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uint8_t addr;
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int rv;
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struct iic_msg msgs[2] = {
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{0, IIC_M_WR, 1, &addr},
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{0, IIC_M_RD, 1, val},
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};
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msgs[0].slave = sc->bus_addr;
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msgs[1].slave = sc->bus_addr;
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addr = reg;
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rv = iicbus_transfer_excl(sc->dev, msgs, 2, IIC_INTRWAIT);
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if (rv != 0) {
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device_printf(sc->dev,
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"Error when reading reg 0x%02X, rv: %d\n", reg, rv);
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return (EIO);
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}
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return (0);
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}
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int act8846_read_buf(struct act8846_softc *sc, uint8_t reg, uint8_t *buf,
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size_t size)
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{
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uint8_t addr;
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int rv;
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struct iic_msg msgs[2] = {
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{0, IIC_M_WR, 1, &addr},
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{0, IIC_M_RD, size, buf},
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};
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msgs[0].slave = sc->bus_addr;
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msgs[1].slave = sc->bus_addr;
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addr = reg;
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rv = iicbus_transfer_excl(sc->dev, msgs, 2, IIC_INTRWAIT);
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if (rv != 0) {
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device_printf(sc->dev,
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"Error when reading reg 0x%02X, rv: %d\n", reg, rv);
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return (EIO);
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}
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return (0);
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}
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int
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act8846_write(struct act8846_softc *sc, uint8_t reg, uint8_t val)
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{
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uint8_t data[2];
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int rv;
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struct iic_msg msgs[1] = {
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{0, IIC_M_WR, 2, data},
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};
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msgs[0].slave = sc->bus_addr;
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data[0] = reg;
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data[1] = val;
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rv = iicbus_transfer_excl(sc->dev, msgs, 1, IIC_INTRWAIT);
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if (rv != 0) {
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device_printf(sc->dev,
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"Error when writing reg 0x%02X, rv: %d\n", reg, rv);
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return (EIO);
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}
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return (0);
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}
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int act8846_write_buf(struct act8846_softc *sc, uint8_t reg, uint8_t *buf,
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size_t size)
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{
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uint8_t data[1];
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int rv;
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struct iic_msg msgs[2] = {
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{0, IIC_M_WR, 1, data},
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{0, IIC_M_WR | IIC_M_NOSTART, size, buf},
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};
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msgs[0].slave = sc->bus_addr;
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msgs[1].slave = sc->bus_addr;
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data[0] = reg;
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rv = iicbus_transfer_excl(sc->dev, msgs, 2, IIC_INTRWAIT);
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if (rv != 0) {
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device_printf(sc->dev,
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"Error when writing reg 0x%02X, rv: %d\n", reg, rv);
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return (EIO);
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}
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return (0);
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}
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int
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act8846_modify(struct act8846_softc *sc, uint8_t reg, uint8_t clear, uint8_t set)
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{
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uint8_t val;
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int rv;
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rv = act8846_read(sc, reg, &val);
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if (rv != 0)
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return (rv);
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val &= ~clear;
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val |= set;
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rv = act8846_write(sc, reg, val);
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if (rv != 0)
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return (rv);
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return (0);
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}
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static int
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act8846_probe(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
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return (ENXIO);
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device_set_desc(dev, "ACT8846 PMIC");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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act8846_attach(device_t dev)
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{
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struct act8846_softc *sc;
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int rv;
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phandle_t node;
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sc = device_get_softc(dev);
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sc->dev = dev;
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sc->bus_addr = iicbus_get_addr(dev);
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node = ofw_bus_get_node(sc->dev);
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rv = 0;
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LOCK_INIT(sc);
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rv = act8846_regulator_attach(sc, node);
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if (rv != 0)
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goto fail;
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return (bus_generic_attach(dev));
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fail:
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LOCK_DESTROY(sc);
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return (rv);
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}
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static int
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act8846_detach(device_t dev)
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{
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struct act8846_softc *sc;
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sc = device_get_softc(dev);
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LOCK_DESTROY(sc);
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return (bus_generic_detach(dev));
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}
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static device_method_t act8846_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, act8846_probe),
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DEVMETHOD(device_attach, act8846_attach),
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DEVMETHOD(device_detach, act8846_detach),
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/* Regdev interface */
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DEVMETHOD(regdev_map, act8846_regulator_map),
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DEVMETHOD_END
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};
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static devclass_t act8846_devclass;
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static DEFINE_CLASS_0(act8846_pmu, act8846_driver, act8846_methods,
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sizeof(struct act8846_softc));
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EARLY_DRIVER_MODULE(act8846_pmic, iicbus, act8846_driver, act8846_devclass,
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NULL, NULL, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST);
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MODULE_VERSION(act8846_pmic, 1);
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MODULE_DEPEND(act8846_pmic, iicbus, IICBUS_MINVER, IICBUS_PREFVER,
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IICBUS_MAXVER);
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IICBUS_FDT_PNP_INFO(compat_data);
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67
sys/dev/iicbus/pmic/act8846.h
Normal file
67
sys/dev/iicbus/pmic/act8846.h
Normal file
@ -0,0 +1,67 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019 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
|
||||||
|
* 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
|
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|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
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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
|
||||||
|
* 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
|
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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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* $FreeBSD$
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*/
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#ifndef _ACT8846_H_
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#define _ACT8846_H_
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#include <dev/iicbus/pmic/act8846_reg.h>
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struct act8846_reg_sc;
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struct act8846_gpio_pin;
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struct act8846_softc {
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device_t dev;
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struct sx lock;
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int bus_addr;
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/* Regulators. */
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struct act8846_reg_sc **regs;
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int nregs;
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};
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#define RD1(sc, reg, val) act8846_read(sc, reg, val)
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#define WR1(sc, reg, val) act8846_write(sc, reg, val)
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#define RM1(sc, reg, clr, set) act8846_modify(sc, reg, clr, set)
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int act8846_read(struct act8846_softc *sc, uint8_t reg, uint8_t *val);
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int act8846_write(struct act8846_softc *sc, uint8_t reg, uint8_t val);
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int act8846_modify(struct act8846_softc *sc, uint8_t reg, uint8_t clear,
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uint8_t set);
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int act8846_read_buf(struct act8846_softc *sc, uint8_t reg, uint8_t *buf,
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size_t size);
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int act8846_write_buf(struct act8846_softc *sc, uint8_t reg, uint8_t *buf,
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size_t size);
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/* Regulators */
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int act8846_regulator_attach(struct act8846_softc *sc, phandle_t node);
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int act8846_regulator_map(device_t dev, phandle_t xref, int ncells,
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pcell_t *cells, int *num);
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#endif /* _ACT8846_H_ */
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83
sys/dev/iicbus/pmic/act8846_reg.h
Normal file
83
sys/dev/iicbus/pmic/act8846_reg.h
Normal file
@ -0,0 +1,83 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org>
|
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|
*
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|
* 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.
|
||||||
|
*
|
||||||
|
* $FreeBSD$
|
||||||
|
*/
|
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|
|
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|
|
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|
#ifndef _ACT8846_REG_H_
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#define _ACT8846_REG_H_
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/* ACT8846 registers. */
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#define ACT8846_SYS0 0x00
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#define ACT8846_SYS1 0x01
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#define ACT8846_REG1_CTRL 0x12
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#define ACT8846_REG2_VSET0 0x20
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#define ACT8846_REG2_VSET1 0x21
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#define ACT8846_REG2_CTRL 0x22
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#define ACT8846_REG3_VSET0 0x30
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||||||
|
#define ACT8846_REG3_VSET1 0x31
|
||||||
|
#define ACT8846_REG3_CTRL 0x32
|
||||||
|
#define ACT8846_REG4_VSET0 0x40
|
||||||
|
#define ACT8846_REG4_VSET1 0x41
|
||||||
|
#define ACT8846_REG4_CTRL 0x42
|
||||||
|
#define ACT8846_REG5_VSET 0x50
|
||||||
|
#define ACT8846_REG5_CTRL 0x51
|
||||||
|
#define ACT8846_REG6_VSET 0x58
|
||||||
|
#define ACT8846_REG6_CTRL 0x59
|
||||||
|
#define ACT8846_REG7_VSET 0x60
|
||||||
|
#define ACT8846_REG7_CTRL 0x61
|
||||||
|
#define ACT8846_REG8_VSET 0x68
|
||||||
|
#define ACT8846_REG8_CTRL 0x69
|
||||||
|
#define ACT8846_REG9_VSET 0x70
|
||||||
|
#define ACT8846_REG9_CTRL 0x71
|
||||||
|
#define ACT8846_REG10_VSET 0x80
|
||||||
|
#define ACT8846_REG10_CTRL 0x81
|
||||||
|
#define ACT8846_REG11_VSET 0x90
|
||||||
|
#define ACT8846_REG11_CTRL 0x91
|
||||||
|
#define ACT8846_REG12_VSET 0xa0
|
||||||
|
#define ACT8846_REG12_CTRL 0xa1
|
||||||
|
#define ACT8846_REG13_CTRL 0xb1
|
||||||
|
#define ACT8846_PB0 0xc0
|
||||||
|
#define ACT8846_PB1 0xc1
|
||||||
|
#define ACT8846_PB2 0xc2
|
||||||
|
#define ACT8846_PB3 0xc3
|
||||||
|
#define ACT8846_PB4 0xc4
|
||||||
|
#define ACT8846_GPIO6 0xe3
|
||||||
|
#define ACT8846_GPIO5 0xe4
|
||||||
|
#define ACT8846_GPIO3 0xf4
|
||||||
|
#define ACT8846_GPIO4 0xf5
|
||||||
|
|
||||||
|
/* Common REGxx_CTRL bits */
|
||||||
|
#define ACT8846_CTRL_ENA 0x80
|
||||||
|
#define ACT8846_CTRL_OK 0x01
|
||||||
|
|
||||||
|
/* Common REGxx_VSEL bits */
|
||||||
|
#define ACT8846_VSEL_MASK 0x3f
|
||||||
|
|
||||||
|
|
||||||
|
#endif /* _ACT8846_REG_H_ */
|
||||||
506
sys/dev/iicbus/pmic/act8846_regulator.c
Normal file
506
sys/dev/iicbus/pmic/act8846_regulator.c
Normal file
@ -0,0 +1,506 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||||
|
*
|
||||||
|
* Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org>
|
||||||
|
*
|
||||||
|
* 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/systm.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/iicbus/iiconf.h>
|
||||||
|
#include <dev/iicbus/iicbus.h>
|
||||||
|
|
||||||
|
#include <dev/ofw/ofw_bus.h>
|
||||||
|
#include <dev/ofw/ofw_bus_subr.h>
|
||||||
|
|
||||||
|
#include <dev/extres/regulator/regulator.h>
|
||||||
|
|
||||||
|
#include <dev/iicbus/pmic/act8846.h>
|
||||||
|
|
||||||
|
#include "regdev_if.h"
|
||||||
|
|
||||||
|
MALLOC_DEFINE(M_ACT8846_REG, "ACT8846 regulator", "ACT8846 power regulator");
|
||||||
|
|
||||||
|
#if 0
|
||||||
|
#define dprintf(sc, format, arg...)
|
||||||
|
device_printf(sc->base_sc->dev, "%s: " format, __func__, arg) */
|
||||||
|
#else
|
||||||
|
#define dprintf(sc, format, arg...)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
enum act8846_reg_id {
|
||||||
|
ACT8846_REG_ID_REG1,
|
||||||
|
ACT8846_REG_ID_REG2,
|
||||||
|
ACT8846_REG_ID_REG3,
|
||||||
|
ACT8846_REG_ID_REG4,
|
||||||
|
ACT8846_REG_ID_REG5,
|
||||||
|
ACT8846_REG_ID_REG6,
|
||||||
|
ACT8846_REG_ID_REG7,
|
||||||
|
ACT8846_REG_ID_REG8,
|
||||||
|
ACT8846_REG_ID_REG9,
|
||||||
|
ACT8846_REG_ID_REG10,
|
||||||
|
ACT8846_REG_ID_REG11,
|
||||||
|
ACT8846_REG_ID_REG12,
|
||||||
|
ACT8846_REG_ID_REG13,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct act8846_regdef {
|
||||||
|
intptr_t id; /* ID */
|
||||||
|
char *name; /* Regulator name */
|
||||||
|
char *supply_name; /* Source property name */
|
||||||
|
uint8_t enable_reg;
|
||||||
|
uint8_t enable_mask;
|
||||||
|
uint8_t voltage_reg;
|
||||||
|
uint8_t voltage_mask;
|
||||||
|
struct regulator_range *ranges;
|
||||||
|
int nranges;
|
||||||
|
};
|
||||||
|
struct act8846_softc;
|
||||||
|
|
||||||
|
struct act8846_reg_sc {
|
||||||
|
struct regnode *regnode;
|
||||||
|
struct act8846_softc *base_sc;
|
||||||
|
struct act8846_regdef *def;
|
||||||
|
phandle_t xref;
|
||||||
|
struct regnode_std_param *param;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
static struct regulator_range act8846_ranges[] = {
|
||||||
|
REG_RANGE_INIT( 0, 23, 600000, 25000),
|
||||||
|
REG_RANGE_INIT( 24, 47, 1200000, 50000),
|
||||||
|
REG_RANGE_INIT( 48, 64, 2400000, 100000),
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct act8846_regdef act8846_regdefs[] = {
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG1,
|
||||||
|
.name = "REG1",
|
||||||
|
.supply_name = "vp1",
|
||||||
|
.enable_reg = ACT8846_REG1_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG2,
|
||||||
|
.name = "REG2",
|
||||||
|
.supply_name = "vp2",
|
||||||
|
.enable_reg = ACT8846_REG2_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG2_VSET0,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG3,
|
||||||
|
.name = "REG3",
|
||||||
|
.supply_name = "vp3",
|
||||||
|
.enable_reg = ACT8846_REG3_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG3_VSET0,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG4,
|
||||||
|
.name = "REG4",
|
||||||
|
.supply_name = "vp4",
|
||||||
|
.enable_reg = ACT8846_REG4_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG4_VSET0,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG5,
|
||||||
|
.name = "REG5",
|
||||||
|
.supply_name = "inl1",
|
||||||
|
.enable_reg = ACT8846_REG5_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG5_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG6,
|
||||||
|
.name = "REG6",
|
||||||
|
.supply_name = "inl1",
|
||||||
|
.enable_reg = ACT8846_REG6_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG6_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG7,
|
||||||
|
.name = "REG7",
|
||||||
|
.supply_name = "inl1",
|
||||||
|
.enable_reg = ACT8846_REG7_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG7_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG8,
|
||||||
|
.name = "REG8",
|
||||||
|
.supply_name = "inl2",
|
||||||
|
.enable_reg = ACT8846_REG8_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG8_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG9,
|
||||||
|
.name = "REG9",
|
||||||
|
.supply_name = "inl2",
|
||||||
|
.enable_reg = ACT8846_REG9_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG9_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG10,
|
||||||
|
.name = "REG10",
|
||||||
|
.supply_name = "inl3",
|
||||||
|
.enable_reg = ACT8846_REG10_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG10_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG11,
|
||||||
|
.name = "REG11",
|
||||||
|
.supply_name = "inl3",
|
||||||
|
.enable_reg = ACT8846_REG11_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG11_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG12,
|
||||||
|
.name = "REG12",
|
||||||
|
.supply_name = "inl3",
|
||||||
|
.enable_reg = ACT8846_REG12_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
.voltage_reg = ACT8846_REG12_VSET,
|
||||||
|
.voltage_mask = ACT8846_VSEL_MASK,
|
||||||
|
.ranges = act8846_ranges,
|
||||||
|
.nranges = nitems(act8846_ranges),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = ACT8846_REG_ID_REG13,
|
||||||
|
.name = "REG13",
|
||||||
|
.supply_name = "inl1",
|
||||||
|
.enable_reg = ACT8846_REG13_CTRL,
|
||||||
|
.enable_mask = ACT8846_CTRL_ENA,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
static int
|
||||||
|
act8846_read_sel(struct act8846_reg_sc *sc, uint8_t *sel)
|
||||||
|
{
|
||||||
|
int rv;
|
||||||
|
|
||||||
|
rv = RD1(sc->base_sc, sc->def->voltage_reg, sel);
|
||||||
|
if (rv != 0)
|
||||||
|
return (rv);
|
||||||
|
*sel &= sc->def->voltage_mask;
|
||||||
|
*sel >>= ffs(sc->def->voltage_mask) - 1;
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
act8846_write_sel(struct act8846_reg_sc *sc, uint8_t sel)
|
||||||
|
{
|
||||||
|
int rv;
|
||||||
|
|
||||||
|
sel <<= ffs(sc->def->voltage_mask) - 1;
|
||||||
|
sel &= sc->def->voltage_mask;
|
||||||
|
|
||||||
|
rv = RM1(sc->base_sc, sc->def->voltage_reg,
|
||||||
|
sc->def->voltage_mask, sel);
|
||||||
|
if (rv != 0)
|
||||||
|
return (rv);
|
||||||
|
return (rv);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
act8846_regnode_init(struct regnode *regnode)
|
||||||
|
{
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
act8846_regnode_enable(struct regnode *regnode, bool enable, int *udelay)
|
||||||
|
{
|
||||||
|
struct act8846_reg_sc *sc;
|
||||||
|
int rv;
|
||||||
|
|
||||||
|
sc = regnode_get_softc(regnode);
|
||||||
|
|
||||||
|
dprintf(sc, "%sabling regulator %s\n",
|
||||||
|
enable ? "En" : "Dis",
|
||||||
|
sc->def->name);
|
||||||
|
rv = RM1(sc->base_sc, sc->def->enable_reg,
|
||||||
|
sc->def->enable_mask, enable ? sc->def->enable_mask: 0);
|
||||||
|
*udelay = sc->param->enable_delay;
|
||||||
|
|
||||||
|
return (rv);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
act8846_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
|
||||||
|
int max_uvolt, int *udelay)
|
||||||
|
{
|
||||||
|
struct act8846_reg_sc *sc;
|
||||||
|
uint8_t sel;
|
||||||
|
int uvolt, rv;
|
||||||
|
|
||||||
|
sc = regnode_get_softc(regnode);
|
||||||
|
|
||||||
|
if (sc->def->ranges == NULL)
|
||||||
|
return (ENXIO);
|
||||||
|
|
||||||
|
dprintf(sc, "Setting %s to %d<->%d uvolts\n",
|
||||||
|
sc->def->name,
|
||||||
|
min_uvolt,
|
||||||
|
max_uvolt);
|
||||||
|
rv = regulator_range_volt_to_sel8(sc->def->ranges, sc->def->nranges,
|
||||||
|
min_uvolt, max_uvolt, &sel);
|
||||||
|
if (rv != 0)
|
||||||
|
return (rv);
|
||||||
|
*udelay = sc->param->ramp_delay;
|
||||||
|
rv = act8846_write_sel(sc, sel);
|
||||||
|
|
||||||
|
act8846_read_sel(sc, &sel);
|
||||||
|
regulator_range_sel8_to_volt(sc->def->ranges, sc->def->nranges,
|
||||||
|
sel, &uvolt);
|
||||||
|
dprintf(sc, "Regulator %s set to %d uvolt\n", sc->def->name,
|
||||||
|
uvolt);
|
||||||
|
|
||||||
|
return (rv);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
act8846_regnode_get_voltage(struct regnode *regnode, int *uvolt)
|
||||||
|
{
|
||||||
|
struct act8846_reg_sc *sc;
|
||||||
|
uint8_t sel;
|
||||||
|
int rv;
|
||||||
|
|
||||||
|
sc = regnode_get_softc(regnode);
|
||||||
|
|
||||||
|
if (sc->def->ranges == NULL) {
|
||||||
|
if (sc->def->id == ACT8846_REG_ID_REG13) {
|
||||||
|
*uvolt = 1800000;
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
return (ENXIO);
|
||||||
|
}
|
||||||
|
|
||||||
|
rv = act8846_read_sel(sc, &sel);
|
||||||
|
if (rv != 0)
|
||||||
|
return (rv);
|
||||||
|
rv = regulator_range_sel8_to_volt(sc->def->ranges, sc->def->nranges,
|
||||||
|
sel, uvolt);
|
||||||
|
dprintf(sc, "Regulator %s is at %d uvolt\n", sc->def->name,
|
||||||
|
*uvolt);
|
||||||
|
|
||||||
|
return (rv);
|
||||||
|
}
|
||||||
|
|
||||||
|
static regnode_method_t act8846_regnode_methods[] = {
|
||||||
|
/* Regulator interface */
|
||||||
|
REGNODEMETHOD(regnode_init, act8846_regnode_init),
|
||||||
|
REGNODEMETHOD(regnode_enable, act8846_regnode_enable),
|
||||||
|
REGNODEMETHOD(regnode_set_voltage, act8846_regnode_set_voltage),
|
||||||
|
REGNODEMETHOD(regnode_get_voltage, act8846_regnode_get_voltage),
|
||||||
|
REGNODEMETHOD_END
|
||||||
|
};
|
||||||
|
DEFINE_CLASS_1(act8846_regnode, act8846_regnode_class, act8846_regnode_methods,
|
||||||
|
sizeof(struct act8846_reg_sc), regnode_class);
|
||||||
|
|
||||||
|
static int
|
||||||
|
act8846_fdt_parse(struct act8846_softc *sc, phandle_t pnode, phandle_t node,
|
||||||
|
struct act8846_regdef *def, struct regnode_init_def *init_def)
|
||||||
|
{
|
||||||
|
int rv;
|
||||||
|
phandle_t supply_node;
|
||||||
|
char prop_name[64]; /* Maximum OFW property name length. */
|
||||||
|
|
||||||
|
rv = regulator_parse_ofw_stdparam(sc->dev, node, init_def);
|
||||||
|
|
||||||
|
/* Get parent supply. */
|
||||||
|
if (def->supply_name == NULL)
|
||||||
|
return (0);
|
||||||
|
|
||||||
|
snprintf(prop_name, sizeof(prop_name), "%s-supply",
|
||||||
|
def->supply_name);
|
||||||
|
rv = OF_getencprop(pnode, prop_name, &supply_node,
|
||||||
|
sizeof(supply_node));
|
||||||
|
if (rv <= 0)
|
||||||
|
return (rv);
|
||||||
|
supply_node = OF_node_from_xref(supply_node);
|
||||||
|
rv = OF_getprop_alloc(supply_node, "regulator-name",
|
||||||
|
(void **)&init_def->parent_name);
|
||||||
|
if (rv <= 0)
|
||||||
|
init_def->parent_name = NULL;
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct act8846_reg_sc *
|
||||||
|
act8846_attach(struct act8846_softc *sc, phandle_t pnode, phandle_t node,
|
||||||
|
struct act8846_regdef *def)
|
||||||
|
{
|
||||||
|
struct act8846_reg_sc *reg_sc;
|
||||||
|
struct regnode_init_def initdef;
|
||||||
|
struct regnode *regnode;
|
||||||
|
|
||||||
|
memset(&initdef, 0, sizeof(initdef));
|
||||||
|
if (act8846_fdt_parse(sc, pnode, node, def, &initdef) != 0) {
|
||||||
|
device_printf(sc->dev, "cannot parse FDT data for regulator\n");
|
||||||
|
return (NULL);
|
||||||
|
}
|
||||||
|
initdef.id = def->id;
|
||||||
|
initdef.ofw_node = node;
|
||||||
|
|
||||||
|
regnode = regnode_create(sc->dev, &act8846_regnode_class, &initdef);
|
||||||
|
if (regnode == NULL) {
|
||||||
|
device_printf(sc->dev, "cannot create regulator\n");
|
||||||
|
return (NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
reg_sc = regnode_get_softc(regnode);
|
||||||
|
reg_sc->base_sc = sc;
|
||||||
|
reg_sc->def = def;
|
||||||
|
reg_sc->xref = OF_xref_from_node(node);
|
||||||
|
reg_sc->param = regnode_get_stdparam(regnode);
|
||||||
|
|
||||||
|
regnode_register(regnode);
|
||||||
|
|
||||||
|
if (bootverbose) {
|
||||||
|
int volt, rv;
|
||||||
|
regnode_topo_slock();
|
||||||
|
rv = regnode_get_voltage(regnode, &volt);
|
||||||
|
if (rv == ENODEV) {
|
||||||
|
device_printf(sc->dev,
|
||||||
|
" Regulator %s: parent doesn't exist yet.\n",
|
||||||
|
regnode_get_name(regnode));
|
||||||
|
} else if (rv != 0) {
|
||||||
|
device_printf(sc->dev,
|
||||||
|
" Regulator %s: voltage: INVALID!!!\n",
|
||||||
|
regnode_get_name(regnode));
|
||||||
|
} else {
|
||||||
|
device_printf(sc->dev,
|
||||||
|
" Regulator %s: voltage: %d uV\n",
|
||||||
|
regnode_get_name(regnode), volt);
|
||||||
|
}
|
||||||
|
regnode_topo_unlock();
|
||||||
|
}
|
||||||
|
|
||||||
|
return (reg_sc);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int
|
||||||
|
act8846_regulator_attach(struct act8846_softc *sc, phandle_t node)
|
||||||
|
{
|
||||||
|
struct act8846_reg_sc *reg;
|
||||||
|
phandle_t child, rnode;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
rnode = ofw_bus_find_child(node, "regulators");
|
||||||
|
if (rnode <= 0) {
|
||||||
|
device_printf(sc->dev, " Cannot find regulators subnode\n");
|
||||||
|
return (ENXIO);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* ACT8846 specific definitio. */
|
||||||
|
sc->nregs = nitems(act8846_regdefs);
|
||||||
|
sc->regs = malloc(sizeof(struct act8846_reg_sc *) * sc->nregs,
|
||||||
|
M_ACT8846_REG, M_WAITOK | M_ZERO);
|
||||||
|
|
||||||
|
|
||||||
|
/* Attach all known regulators if exist in DT. */
|
||||||
|
for (i = 0; i < sc->nregs; i++) {
|
||||||
|
child = ofw_bus_find_child(rnode, act8846_regdefs[i].name);
|
||||||
|
if (child == 0) {
|
||||||
|
if (bootverbose)
|
||||||
|
device_printf(sc->dev,
|
||||||
|
"Regulator %s missing in DT\n",
|
||||||
|
act8846_regdefs[i].name);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
reg = act8846_attach(sc, node, child, act8846_regdefs + i);
|
||||||
|
if (reg == NULL) {
|
||||||
|
device_printf(sc->dev, "Cannot attach regulator: %s\n",
|
||||||
|
act8846_regdefs[i].name);
|
||||||
|
return (ENXIO);
|
||||||
|
}
|
||||||
|
sc->regs[i] = reg;
|
||||||
|
}
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
act8846_regulator_map(device_t dev, phandle_t xref, int ncells,
|
||||||
|
pcell_t *cells, int *num)
|
||||||
|
{
|
||||||
|
struct act8846_softc *sc;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
sc = device_get_softc(dev);
|
||||||
|
for (i = 0; i < sc->nregs; i++) {
|
||||||
|
if (sc->regs[i] == NULL)
|
||||||
|
continue;
|
||||||
|
if (sc->regs[i]->xref == xref) {
|
||||||
|
*num = sc->regs[i]->def->id;
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return (ENXIO);
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user