* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2010,2011 NVIDIA Corporation <www.nvidia.com>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * 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 */
};
#define MAX_I2C_RETRY 3
-int tps6586x_read(int reg)
+static int tps6586x_read(int reg)
{
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,
return retval;
}
-int tps6586x_write(int reg, uchar *data, uint len)
+static int tps6586x_write(int reg, uchar *data, uint len)
{
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]);
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)) {
return bad ? -1 : 0;
}
-int tps6586x_init(int bus)
+int tps6586x_init(struct udevice *dev)
{
- bus_num = bus;
- inited = 1;
+ tps6586x_dev = dev;
return 0;
}