Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index c7b6a42..b637836 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* smsc47m1.c - Part of lm_sensors, Linux kernel modules
* for hardware monitoring
@@ -10,20 +11,6 @@
* Copyright (C) 2004-2007 Jean Delvare <jdelvare@suse.de>
* Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
* and Jean Delvare
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -73,16 +60,21 @@
/* logical device for fans is 0x0A */
#define superio_select() superio_outb(0x07, 0x0A)
-static inline void
+static inline int
superio_enter(void)
{
+ if (!request_muxed_region(REG, 2, DRVNAME))
+ return -EBUSY;
+
outb(0x55, REG);
+ return 0;
}
static inline void
superio_exit(void)
{
outb(0xAA, REG);
+ release_region(REG, 2);
}
#define SUPERIO_REG_ACT 0x30
@@ -202,8 +194,8 @@
return data;
}
-static ssize_t get_fan(struct device *dev, struct device_attribute
- *devattr, char *buf)
+static ssize_t fan_show(struct device *dev, struct device_attribute *devattr,
+ char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
@@ -221,8 +213,8 @@
return sprintf(buf, "%d\n", rpm);
}
-static ssize_t get_fan_min(struct device *dev, struct device_attribute
- *devattr, char *buf)
+static ssize_t fan_min_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
@@ -232,32 +224,32 @@
return sprintf(buf, "%d\n", rpm);
}
-static ssize_t get_fan_div(struct device *dev, struct device_attribute
- *devattr, char *buf)
+static ssize_t fan_div_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));
}
-static ssize_t get_fan_alarm(struct device *dev, struct device_attribute
- *devattr, char *buf)
+static ssize_t fan_alarm_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
int bitnr = to_sensor_dev_attr(devattr)->index;
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
}
-static ssize_t get_pwm(struct device *dev, struct device_attribute
- *devattr, char *buf)
+static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr,
+ char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[attr->index]));
}
-static ssize_t get_pwm_en(struct device *dev, struct device_attribute
- *devattr, char *buf)
+static ssize_t pwm_en_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
@@ -271,8 +263,9 @@
return sprintf(buf, "%d\n", data->alarms);
}
-static ssize_t set_fan_min(struct device *dev, struct device_attribute
- *devattr, const char *buf, size_t count)
+static ssize_t fan_min_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = dev_get_drvdata(dev);
@@ -307,8 +300,9 @@
* of least surprise; the user doesn't expect the fan minimum to change just
* because the divider changed.
*/
-static ssize_t set_fan_div(struct device *dev, struct device_attribute
- *devattr, const char *buf, size_t count)
+static ssize_t fan_div_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = dev_get_drvdata(dev);
@@ -357,6 +351,8 @@
tmp |= data->fan_div[2] << 4;
smsc47m1_write_value(data, SMSC47M2_REG_FANDIV3, tmp);
break;
+ default:
+ BUG();
}
/* Preserve fan min */
@@ -370,8 +366,8 @@
return count;
}
-static ssize_t set_pwm(struct device *dev, struct device_attribute
- *devattr, const char *buf, size_t count)
+static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = dev_get_drvdata(dev);
@@ -396,8 +392,9 @@
return count;
}
-static ssize_t set_pwm_en(struct device *dev, struct device_attribute
- *devattr, const char *buf, size_t count)
+static ssize_t pwm_en_store(struct device *dev,
+ struct device_attribute *devattr, const char *buf,
+ size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct smsc47m1_data *data = dev_get_drvdata(dev);
@@ -422,23 +419,24 @@
return count;
}
-#define fan_present(offset) \
-static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, get_fan, \
- NULL, offset - 1); \
-static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
- get_fan_min, set_fan_min, offset - 1); \
-static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
- get_fan_div, set_fan_div, offset - 1); \
-static SENSOR_DEVICE_ATTR(fan##offset##_alarm, S_IRUGO, get_fan_alarm, \
- NULL, offset - 1); \
-static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
- get_pwm, set_pwm, offset - 1); \
-static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
- get_pwm_en, set_pwm_en, offset - 1)
-
-fan_present(1);
-fan_present(2);
-fan_present(3);
+static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0);
+static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);
+static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0);
+static SENSOR_DEVICE_ATTR_RO(fan1_alarm, fan_alarm, 0);
+static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0);
+static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_en, 0);
+static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1);
+static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);
+static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1);
+static SENSOR_DEVICE_ATTR_RO(fan2_alarm, fan_alarm, 1);
+static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1);
+static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_en, 1);
+static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2);
+static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);
+static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2);
+static SENSOR_DEVICE_ATTR_RO(fan3_alarm, fan_alarm, 2);
+static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2);
+static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_en, 2);
static DEVICE_ATTR_RO(alarms);
@@ -531,8 +529,12 @@
{
u8 val;
unsigned short addr;
+ int err;
- superio_enter();
+ err = superio_enter();
+ if (err)
+ return err;
+
val = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID);
/*
@@ -608,13 +610,14 @@
static void smsc47m1_restore(const struct smsc47m1_sio_data *sio_data)
{
if ((sio_data->activate & 0x01) == 0) {
- superio_enter();
- superio_select();
-
- pr_info("Disabling device\n");
- superio_outb(SUPERIO_REG_ACT, sio_data->activate);
-
- superio_exit();
+ if (!superio_enter()) {
+ superio_select();
+ pr_info("Disabling device\n");
+ superio_outb(SUPERIO_REG_ACT, sio_data->activate);
+ superio_exit();
+ } else {
+ pr_warn("Failed to disable device\n");
+ }
}
}