+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2010,2011 NVIDIA Corporation <www.nvidia.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <i2c.h>
-static int bus_num; /* I2C bus we are on */
-#define I2C_ADDRESS 0x34 /* chip requires this address */
-static char inited; /* 1 if we have been inited */
+static struct udevice *tps6586x_dev;
enum {
/* Registers that we access */
int i;
uchar data;
int retval = -1;
- int old_bus_num;
-
- old_bus_num = i2c_get_bus_num();
- i2c_set_bus_num(bus_num);
for (i = 0; i < MAX_I2C_RETRY; ++i) {
- if (!i2c_read(I2C_ADDRESS, reg, 1, &data, 1)) {
+ if (!dm_i2c_read(tps6586x_dev, reg, &data, 1)) {
retval = (int)data;
goto exit;
}
}
exit:
- i2c_set_bus_num(old_bus_num);
debug("pmu_read %x=%x\n", reg, retval);
if (retval < 0)
debug("%s: failed to read register %#x: %d\n", __func__, reg,
{
int i;
int retval = -1;
- int old_bus_num;
-
- old_bus_num = i2c_get_bus_num();
- i2c_set_bus_num(bus_num);
for (i = 0; i < MAX_I2C_RETRY; ++i) {
- if (!i2c_write(I2C_ADDRESS, reg, 1, data, len)) {
+ if (!dm_i2c_write(tps6586x_dev, reg, data, len)) {
retval = 0;
goto exit;
}
}
exit:
- i2c_set_bus_num(old_bus_num);
debug("pmu_write %x=%x: ", reg, retval);
for (i = 0; i < len; i++)
debug("%x ", data[i]);
ctrl1 = tps6586x_read(SUPPLY_CONTROL1);
ctrl2 = tps6586x_read(SUPPLY_CONTROL2);
if (ctrl1 == -1 || ctrl2 == -1)
- return -1;
+ return -ENOTSUPP;
/* Figure out whether V1 or V2 is selected */
is_v2 = (ctrl1 | ctrl2) & CTRL_SM0_SUPPLY2;
*sm0 = tps6586x_read(is_v2 ? SM0_VOLTAGE_V2 : SM0_VOLTAGE_V1);
*sm1 = tps6586x_read(is_v2 ? SM1_VOLTAGE_V2 : SM1_VOLTAGE_V1);
if (*sm0 == -1 || *sm1 == -1)
- return -1;
+ return -ENOTSUPP;
return 0;
}
/* write v1, v2 and rate, then trigger */
if (tps6586x_write(reg, buff, 3) ||
tps6586x_write(SUPPLY_CONTROL1, &control_bit, 1))
- return -1;
+ return -ENOTSUPP;
return 0;
}
uchar val;
int ret;
- assert(inited);
+ assert(tps6586x_dev);
ret = tps6586x_read(PFM_MODE);
if (ret != -1) {
val = (uchar)ret;
int sm0, sm1;
int bad;
- assert(inited);
+ assert(tps6586x_dev);
/* get current voltage settings */
if (read_voltages(&sm0, &sm1)) {
debug("%s: Cannot read voltage settings\n", __func__);
- return -1;
+ return -EINVAL;
}
/*
if (min_sm0_over_sm1 != -1 && sm0 < sm1 + min_sm0_over_sm1) {
debug("%s: SM0 is %d, SM1 is %d, but min_sm0_over_sm1 is %d\n",
__func__, sm0, sm1, min_sm0_over_sm1);
- return -1;
+ return -EINVAL;
}
/*
}
debug("%d-%d %d-%d done\n", sm0, sm0_target, sm1, sm1_target);
- return bad ? -1 : 0;
+ return bad ? -EINVAL : 0;
}
-int tps6586x_init(int bus)
+int tps6586x_init(struct udevice *dev)
{
- bus_num = bus;
- inited = 1;
+ tps6586x_dev = dev;
return 0;
}