Add RK805 PMIC Support
RK805 is the companion PMIC for RK3328 SoC. Add a driver for it with most of it's regulators supported. MFC after: 1 month
This commit is contained in:
Emmanuel Vadot
parent
da3d2dce91
commit
cee1927ea2
422
sys/arm64/rockchip/rk805.c
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422
sys/arm64/rockchip/rk805.c
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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) 2018 Emmanuel Vadot <manu@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/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/rman.h>
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#include <machine/bus.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/extres/regulator/regulator.h>
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#include <arm64/rockchip/rk805reg.h>
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#include "regdev_if.h"
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MALLOC_DEFINE(M_RK805_REG, "RK805 regulator", "RK805 power regulator");
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static struct ofw_compat_data compat_data[] = {
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{"rockchip,rk805", 1},
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{NULL, 0}
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};
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struct rk805_regdef {
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intptr_t id;
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char *name;
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uint8_t enable_reg;
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uint8_t enable_mask;
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uint8_t voltage_reg;
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uint8_t voltage_mask;
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int voltage_min;
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int voltage_max;
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int voltage_step;
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int voltage_nstep;
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};
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struct rk805_reg_sc {
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struct regnode *regnode;
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device_t base_dev;
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struct rk805_regdef *def;
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phandle_t xref;
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struct regnode_std_param *param;
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};
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struct rk805_softc {
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device_t dev;
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struct mtx mtx;
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struct resource * res[1];
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void * intrcookie;
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struct intr_config_hook intr_hook;
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struct rk805_reg_sc **regs;
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int nregs;
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};
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static struct rk805_regdef rk805_regdefs[] = {
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{
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.id = RK805_DCDC1,
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.name = "DCDC_REG1",
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.enable_reg = RK805_DCDC_EN,
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.enable_mask = 0x11,
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.voltage_reg = RK805_DCDC1_ON_VSEL,
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.voltage_mask = 0x3F,
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.voltage_min = 712500,
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.voltage_max = 1450000,
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.voltage_step = 12500,
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.voltage_nstep = 64,
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},
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{
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.id = RK805_DCDC2,
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.name = "DCDC_REG2",
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.enable_reg = RK805_DCDC_EN,
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.enable_mask = 0x22,
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.voltage_reg = RK805_DCDC2_ON_VSEL,
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.voltage_mask = 0x3F,
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.voltage_min = 712500,
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.voltage_max = 1450000,
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.voltage_step = 12500,
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.voltage_nstep = 64,
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},
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{
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.id = RK805_DCDC3,
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.name = "DCDC_REG3",
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.enable_reg = RK805_DCDC_EN,
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.enable_mask = 0x44,
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},
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{
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.id = RK805_DCDC4,
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.name = "DCDC_REG4",
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.enable_reg = RK805_DCDC_EN,
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.enable_mask = 0x88,
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.voltage_reg = RK805_DCDC4_ON_VSEL,
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.voltage_mask = 0x3F,
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.voltage_min = 800000,
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.voltage_max = 3500000,
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.voltage_step = 100000,
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.voltage_nstep = 28,
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},
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};
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static int
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rk805_read(device_t dev, uint8_t reg, uint8_t *data, uint8_t size)
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{
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return (iicdev_readfrom(dev, reg, data, size, IIC_INTRWAIT));
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}
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static int
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rk805_write(device_t dev, uint8_t reg, uint8_t data)
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{
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struct iic_msg msg;
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uint8_t buf[2];
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buf[0] = reg;
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buf[1] = data;
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msg.slave = iicbus_get_addr(dev);
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msg.flags = IIC_M_WR;
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msg.buf = buf;
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msg.len = sizeof(buf);
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return (iicbus_transfer_excl(dev, &msg, 1, IIC_INTRWAIT));
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}
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static int
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rk805_regnode_init(struct regnode *regnode)
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{
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return (0);
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}
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static int
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rk805_regnode_enable(struct regnode *regnode, bool enable, int *udelay)
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{
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struct rk805_reg_sc *sc;
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uint8_t val;
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sc = regnode_get_softc(regnode);
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rk805_read(sc->base_dev, sc->def->enable_reg, &val, 1);
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if (enable)
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val |= sc->def->enable_mask;
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else
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val &= ~sc->def->enable_mask;
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rk805_write(sc->base_dev, sc->def->enable_reg, val);
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*udelay = 0;
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return (0);
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}
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static void
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rk805_regnode_reg_to_voltage(struct rk805_reg_sc *sc, uint8_t val, int *uv)
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{
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if (val < sc->def->voltage_nstep)
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*uv = sc->def->voltage_min + val * sc->def->voltage_step;
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else
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*uv = sc->def->voltage_min +
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(sc->def->voltage_nstep * sc->def->voltage_step);
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}
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static int
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rk805_regnode_voltage_to_reg(struct rk805_reg_sc *sc, int min_uvolt,
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int max_uvolt, uint8_t *val)
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{
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uint8_t nval;
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int nstep, uvolt;
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nval = 0;
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uvolt = sc->def->voltage_min;
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for (nstep = 0; nstep < sc->def->voltage_nstep && uvolt < min_uvolt;
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nstep++) {
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++nval;
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uvolt += sc->def->voltage_step;
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}
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if (uvolt > max_uvolt)
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return (EINVAL);
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*val = nval;
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return (0);
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}
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static int
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rk805_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
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int max_uvolt, int *udelay)
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{
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struct rk805_reg_sc *sc;
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uint8_t val;
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sc = regnode_get_softc(regnode);
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if (!sc->def->voltage_step)
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return (ENXIO);
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if (rk805_regnode_voltage_to_reg(sc, min_uvolt, max_uvolt, &val) != 0)
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return (ERANGE);
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rk805_write(sc->base_dev, sc->def->voltage_reg, val);
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*udelay = 0;
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return (0);
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}
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static int
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rk805_regnode_get_voltage(struct regnode *regnode, int *uvolt)
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{
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struct rk805_reg_sc *sc;
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uint8_t val;
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sc = regnode_get_softc(regnode);
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if (!sc->def->voltage_step)
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return (ENXIO);
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rk805_read(sc->base_dev, sc->def->voltage_reg, &val, 1);
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rk805_regnode_reg_to_voltage(sc, val & sc->def->voltage_mask, uvolt);
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return (0);
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}
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static regnode_method_t rk805_regnode_methods[] = {
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/* Regulator interface */
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REGNODEMETHOD(regnode_init, rk805_regnode_init),
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REGNODEMETHOD(regnode_enable, rk805_regnode_enable),
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REGNODEMETHOD(regnode_set_voltage, rk805_regnode_set_voltage),
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REGNODEMETHOD(regnode_get_voltage, rk805_regnode_get_voltage),
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REGNODEMETHOD_END
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};
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DEFINE_CLASS_1(rk805_regnode, rk805_regnode_class, rk805_regnode_methods,
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sizeof(struct rk805_reg_sc), regnode_class);
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static struct rk805_reg_sc *
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rk805_reg_attach(device_t dev, phandle_t node,
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struct rk805_regdef *def)
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{
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struct rk805_reg_sc *reg_sc;
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struct regnode_init_def initdef;
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struct regnode *regnode;
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memset(&initdef, 0, sizeof(initdef));
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if (regulator_parse_ofw_stdparam(dev, node, &initdef) != 0) {
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device_printf(dev, "cannot create regulator\n");
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return (NULL);
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}
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if (initdef.std_param.min_uvolt == 0)
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initdef.std_param.min_uvolt = def->voltage_min;
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if (initdef.std_param.max_uvolt == 0)
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initdef.std_param.max_uvolt = def->voltage_max;
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initdef.id = def->id;
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initdef.ofw_node = node;
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regnode = regnode_create(dev, &rk805_regnode_class, &initdef);
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if (regnode == NULL) {
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device_printf(dev, "cannot create regulator\n");
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return (NULL);
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}
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reg_sc = regnode_get_softc(regnode);
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reg_sc->regnode = regnode;
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reg_sc->base_dev = dev;
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reg_sc->def = def;
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reg_sc->xref = OF_xref_from_node(node);
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reg_sc->param = regnode_get_stdparam(regnode);
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regnode_register(regnode);
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return (reg_sc);
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}
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static int
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rk805_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 == 0)
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return (ENXIO);
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device_set_desc(dev, "RockChip RK805 PMIC");
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return (BUS_PROBE_DEFAULT);
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}
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static void
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rk805_start(void *pdev)
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{
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struct rk805_softc *sc;
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device_t dev;
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uint8_t data[2];
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int err;
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dev = pdev;
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sc = device_get_softc(dev);
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sc->dev = dev;
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if (bootverbose) {
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err = rk805_read(dev, 0x17, data, 1);
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if (err != 0) {
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device_printf(dev, "Cannot read chip name reg\n");
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return;
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}
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err = rk805_read(dev, 0x18, data + 1, 1);
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if (err != 0) {
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device_printf(dev, "Cannot read chip version reg\n");
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return;
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}
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device_printf(dev, "Chip Name: %x\n",
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data[0] << 4 | ((data[1] >> 4) & 0xf));
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device_printf(dev, "Chip Version: %x\n", data[1] & 0xf);
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}
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config_intrhook_disestablish(&sc->intr_hook);
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}
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static int
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rk805_attach(device_t dev)
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{
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struct rk805_softc *sc;
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struct rk805_reg_sc *reg;
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struct rk805_regdef *regdefs;
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phandle_t rnode, child;
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int i;
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sc = device_get_softc(dev);
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sc->intr_hook.ich_func = rk805_start;
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sc->intr_hook.ich_arg = dev;
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if (config_intrhook_establish(&sc->intr_hook) != 0)
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return (ENOMEM);
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sc->regs = malloc(sizeof(struct rk805_reg_sc *) * sc->nregs,
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M_RK805_REG, M_WAITOK | M_ZERO);
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regdefs = rk805_regdefs;
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sc->nregs = nitems(rk805_regdefs);
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rnode = ofw_bus_find_child(ofw_bus_get_node(dev), "regulators");
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if (rnode > 0) {
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for (i = 0; i < sc->nregs; i++) {
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child = ofw_bus_find_child(rnode,
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regdefs[i].name);
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if (child == 0)
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continue;
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reg = rk805_reg_attach(dev, child, ®defs[i]);
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if (reg == NULL) {
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device_printf(dev,
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"cannot attach regulator %s\n",
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regdefs[i].name);
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continue;
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}
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sc->regs[i] = reg;
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if (bootverbose)
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||||||
|
device_printf(dev, "Regulator %s attached\n",
|
||||||
|
regdefs[i].name);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
rk805_detach(device_t dev)
|
||||||
|
{
|
||||||
|
|
||||||
|
/* We cannot detach regulators */
|
||||||
|
return (EBUSY);
|
||||||
|
}
|
||||||
|
|
||||||
|
static device_method_t rk805_methods[] = {
|
||||||
|
DEVMETHOD(device_probe, rk805_probe),
|
||||||
|
DEVMETHOD(device_attach, rk805_attach),
|
||||||
|
DEVMETHOD(device_detach, rk805_detach),
|
||||||
|
|
||||||
|
DEVMETHOD_END
|
||||||
|
};
|
||||||
|
|
||||||
|
static driver_t rk805_driver = {
|
||||||
|
"rk805_pmu",
|
||||||
|
rk805_methods,
|
||||||
|
sizeof(struct rk805_softc),
|
||||||
|
};
|
||||||
|
|
||||||
|
static devclass_t rk805_devclass;
|
||||||
|
|
||||||
|
EARLY_DRIVER_MODULE(rk805, iicbus, rk805_driver, rk805_devclass, 0, 0,
|
||||||
|
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST);
|
||||||
|
MODULE_DEPEND(rk805, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER);
|
||||||
|
MODULE_VERSION(rk805, 1);
|
||||||
72
sys/arm64/rockchip/rk805reg.h
Normal file
72
sys/arm64/rockchip/rk805reg.h
Normal file
@ -0,0 +1,72 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||||
|
*
|
||||||
|
* Copyright (c) 2018 Emmanuel Vadot <manu@FreeBSD.org>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* 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.
|
||||||
|
*
|
||||||
|
* $FreeBSD$
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef _RK805REG_H_
|
||||||
|
#define _RK805REG_H_
|
||||||
|
|
||||||
|
#define RK805_CHIP_NAME 0x17
|
||||||
|
#define RK805_CHIP_VER 0x18
|
||||||
|
#define RK805_OTP_VER 0x19
|
||||||
|
|
||||||
|
#define RK805_DCDC_EN 0x23
|
||||||
|
#define RK805_SLEEP_DCDC_EN 0x25
|
||||||
|
#define RK805_SLEEP_LDO_EN 0x26
|
||||||
|
#define RK805_LDO_EN 0x27
|
||||||
|
#define RK805_SLEEP_LDO_LP_EN 0x2A
|
||||||
|
|
||||||
|
#define RK805_DCDC1_CONFIG 0x2E
|
||||||
|
#define RK805_DCDC1_ON_VSEL 0x2F
|
||||||
|
#define RK805_DCDC1_SLEEP_VSEL 0x30
|
||||||
|
#define RK805_DCDC2_CONFIG 0x32
|
||||||
|
#define RK805_DCDC2_ON_VSEL 0x33
|
||||||
|
#define RK805_DCDC2_SLEEP_VSEL 0x34
|
||||||
|
#define RK805_DCDC3_CONFIG 0x36
|
||||||
|
#define RK805_DCDC4_CONFIG 0x37
|
||||||
|
#define RK805_DCDC4_ON_VSEL 0x38
|
||||||
|
#define RK805_DCDC4_SLEEP_VSEL 0x39
|
||||||
|
#define RK805_LDO1_ON_VSEL 0x3B
|
||||||
|
#define RK805_LDO1_SLEEP_VSEL 0x3C
|
||||||
|
#define RK805_LDO2_ON_VSEL 0x3D
|
||||||
|
#define RK805_LDO2_SLEEP_VSEL 0x3E
|
||||||
|
#define RK805_LDO3_ON_VSEL 0x3F
|
||||||
|
#define RK805_LDO3_SLEEP_VSEL 0x40
|
||||||
|
|
||||||
|
enum rk805_regulator {
|
||||||
|
RK805_DCDC1,
|
||||||
|
RK805_DCDC2,
|
||||||
|
RK805_DCDC3,
|
||||||
|
RK805_DCDC4,
|
||||||
|
RK805_LDO1,
|
||||||
|
RK805_LDO2,
|
||||||
|
RK805_LDO3,
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif /* _RK805REG_H_ */
|
||||||
@ -253,6 +253,7 @@ cddl/dev/dtrace/aarch64/dtrace_subr.c optional dtrace compile-with "${DTRACE_C
|
|||||||
cddl/dev/fbt/aarch64/fbt_isa.c optional dtrace_fbt | dtraceall compile-with "${FBT_C}"
|
cddl/dev/fbt/aarch64/fbt_isa.c optional dtrace_fbt | dtraceall compile-with "${FBT_C}"
|
||||||
|
|
||||||
arm64/rockchip/rk_i2c.c optional rk_i2c fdt soc_rockchip_rk3328
|
arm64/rockchip/rk_i2c.c optional rk_i2c fdt soc_rockchip_rk3328
|
||||||
|
arm64/rockchip/rk805.c optional rk805 fdt soc_rockchip_rk3328
|
||||||
arm64/rockchip/rk_grf.c optional fdt soc_rockchip_rk3328
|
arm64/rockchip/rk_grf.c optional fdt soc_rockchip_rk3328
|
||||||
arm64/rockchip/rk_pinctrl.c optional fdt soc_rockchip_rk3328
|
arm64/rockchip/rk_pinctrl.c optional fdt soc_rockchip_rk3328
|
||||||
arm64/rockchip/rk_gpio.c optional fdt soc_rockchip_rk3328
|
arm64/rockchip/rk_gpio.c optional fdt soc_rockchip_rk3328
|
||||||
|
|||||||
@ -3,5 +3,6 @@
|
|||||||
|
|
||||||
SUBDIR = \
|
SUBDIR = \
|
||||||
rk_i2c \
|
rk_i2c \
|
||||||
|
rk805
|
||||||
|
|
||||||
.include <bsd.subdir.mk>
|
.include <bsd.subdir.mk>
|
||||||
|
|||||||
17
sys/modules/rockchip/rk805/Makefile
Normal file
17
sys/modules/rockchip/rk805/Makefile
Normal file
@ -0,0 +1,17 @@
|
|||||||
|
# $FreeBSD$
|
||||||
|
|
||||||
|
.PATH: ${SRCTOP}/sys/arm64/rockchip
|
||||||
|
|
||||||
|
KMOD= rk805
|
||||||
|
SRCS= rk805.c
|
||||||
|
|
||||||
|
SRCS+= \
|
||||||
|
bus_if.h \
|
||||||
|
device_if.h \
|
||||||
|
iicbus_if.h \
|
||||||
|
regnode_if.h \
|
||||||
|
regdev_if.h \
|
||||||
|
ofw_bus_if.h \
|
||||||
|
opt_platform.h \
|
||||||
|
|
||||||
|
.include <bsd.kmod.mk>
|
||||||
Loading…
x
Reference in New Issue
Block a user