mirror of
https://xff.cz/git/u-boot/
synced 2025-10-03 08:21:30 +02:00
d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2019 Texas Instruments Incorporated - https://www.ti.com/
|
|
* Tero Kristo <t-kristo@ti.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <i2c.h>
|
|
#include <dm/device_compat.h>
|
|
#include <power/regulator.h>
|
|
|
|
#define TPS62360_REG_SET0 0
|
|
|
|
#define TPS62360_I2C_CHIP 0x60
|
|
|
|
#define TPS62360_VSEL_STEPSIZE 10000 /* In uV */
|
|
|
|
struct tps62360_regulator_config {
|
|
u32 vmin;
|
|
u32 vmax;
|
|
};
|
|
|
|
struct tps62360_regulator_pdata {
|
|
u8 vsel_offset;
|
|
struct udevice *i2c;
|
|
struct tps62360_regulator_config *config;
|
|
};
|
|
|
|
/*
|
|
* TPS62362/TPS62363 are just re-using these values for now, their preset
|
|
* voltage values are just different compared to TPS62360/TPS62361.
|
|
*/
|
|
static struct tps62360_regulator_config tps62360_data = {
|
|
.vmin = 770000,
|
|
.vmax = 1400000,
|
|
};
|
|
|
|
static struct tps62360_regulator_config tps62361_data = {
|
|
.vmin = 500000,
|
|
.vmax = 1770000,
|
|
};
|
|
|
|
static int tps62360_regulator_set_value(struct udevice *dev, int uV)
|
|
{
|
|
struct tps62360_regulator_pdata *pdata = dev_get_plat(dev);
|
|
u8 regval;
|
|
|
|
if (uV < pdata->config->vmin || uV > pdata->config->vmax)
|
|
return -EINVAL;
|
|
|
|
uV -= pdata->config->vmin;
|
|
|
|
uV = DIV_ROUND_UP(uV, TPS62360_VSEL_STEPSIZE);
|
|
|
|
if (uV > U8_MAX)
|
|
return -EINVAL;
|
|
|
|
regval = (u8)uV;
|
|
|
|
return dm_i2c_write(pdata->i2c, TPS62360_REG_SET0 + pdata->vsel_offset,
|
|
®val, 1);
|
|
}
|
|
|
|
static int tps62360_regulator_get_value(struct udevice *dev)
|
|
{
|
|
u8 regval;
|
|
int ret;
|
|
struct tps62360_regulator_pdata *pdata = dev_get_plat(dev);
|
|
|
|
ret = dm_i2c_read(pdata->i2c, TPS62360_REG_SET0 + pdata->vsel_offset,
|
|
®val, 1);
|
|
if (ret) {
|
|
dev_err(dev, "i2c read failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return (u32)regval * TPS62360_VSEL_STEPSIZE + pdata->config->vmin;
|
|
}
|
|
|
|
static int tps62360_regulator_probe(struct udevice *dev)
|
|
{
|
|
struct tps62360_regulator_pdata *pdata = dev_get_plat(dev);
|
|
u8 vsel0;
|
|
u8 vsel1;
|
|
int ret;
|
|
|
|
pdata->config = (void *)dev_get_driver_data(dev);
|
|
|
|
vsel0 = dev_read_bool(dev, "ti,vsel0-state-high");
|
|
vsel1 = dev_read_bool(dev, "ti,vsel1-state-high");
|
|
|
|
pdata->vsel_offset = vsel0 + vsel1 * 2;
|
|
|
|
ret = i2c_get_chip(dev->parent, TPS62360_I2C_CHIP, 1, &pdata->i2c);
|
|
if (ret) {
|
|
dev_err(dev, "i2c dev get failed.\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dm_regulator_ops tps62360_regulator_ops = {
|
|
.get_value = tps62360_regulator_get_value,
|
|
.set_value = tps62360_regulator_set_value,
|
|
};
|
|
|
|
static const struct udevice_id tps62360_regulator_ids[] = {
|
|
{ .compatible = "ti,tps62360", .data = (ulong)&tps62360_data },
|
|
{ .compatible = "ti,tps62361", .data = (ulong)&tps62361_data },
|
|
{ .compatible = "ti,tps62362", .data = (ulong)&tps62360_data },
|
|
{ .compatible = "ti,tps62363", .data = (ulong)&tps62361_data },
|
|
{ },
|
|
};
|
|
|
|
U_BOOT_DRIVER(tps62360_regulator) = {
|
|
.name = "tps62360_regulator",
|
|
.id = UCLASS_REGULATOR,
|
|
.ops = &tps62360_regulator_ops,
|
|
.of_match = tps62360_regulator_ids,
|
|
.plat_auto = sizeof(struct tps62360_regulator_pdata),
|
|
.probe = tps62360_regulator_probe,
|
|
};
|