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Diffstat (limited to 'drivers/hwmon/w83781d.c')
-rw-r--r--drivers/hwmon/w83781d.c776
1 files changed, 407 insertions, 369 deletions
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index 0bdab959b73..84911616d8c 100644
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -1,37 +1,39 @@
/*
- w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>,
- and Mark Studebaker <mdsxyz123@yahoo.com>
- Copyright (c) 2007 - 2008 Jean Delvare <khali@linux-fr.org>
-
- 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.
-*/
+ * w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
+ * Philip Edelbrock <phil@netroedge.com>,
+ * and Mark Studebaker <mdsxyz123@yahoo.com>
+ * Copyright (c) 2007 - 2008 Jean Delvare <jdelvare@suse.de>
+ *
+ * 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.
+ */
/*
- Supports following chips:
-
- Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
- as99127f 7 3 0 3 0x31 0x12c3 yes no
- as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no
- w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes
- w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes
- w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no
+ * Supports following chips:
+ *
+ * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ * as99127f 7 3 0 3 0x31 0x12c3 yes no
+ * as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no
+ * w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes
+ * w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes
+ * w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no
+ *
+ */
-*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/init.h>
@@ -48,7 +50,7 @@
#ifdef CONFIG_ISA
#include <linux/platform_device.h>
#include <linux/ioport.h>
-#include <asm/io.h>
+#include <linux/io.h>
#endif
#include "lm75.h"
@@ -56,19 +58,20 @@
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
0x2e, 0x2f, I2C_CLIENT_END };
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_4(w83781d, w83782d, w83783s, as99127f);
+enum chips { w83781d, w83782d, w83783s, as99127f };
+
+/* Insmod parameters */
static unsigned short force_subclients[4];
module_param_array(force_subclients, short, NULL, 0);
-MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
- "{bus, clientaddr, subclientaddr1, subclientaddr2}");
+MODULE_PARM_DESC(force_subclients,
+ "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
-static int reset;
+static bool reset;
module_param(reset, bool, 0);
MODULE_PARM_DESC(reset, "Set to one to reset chip on load");
-static int init = 1;
+static bool init = 1;
module_param(init, bool, 0);
MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
@@ -142,8 +145,10 @@ static const u8 W83781D_REG_PWM[] = { 0x5B, 0x5A, 0x5E, 0x5F };
#define W83781D_REG_I2C_ADDR 0x48
#define W83781D_REG_I2C_SUBADDR 0x4A
-/* The following are undocumented in the data sheets however we
- received the information in an email from Winbond tech support */
+/*
+ * The following are undocumented in the data sheets however we
+ * received the information in an email from Winbond tech support
+ */
/* Sensor selection - not on 781d */
#define W83781D_REG_SCFG1 0x5D
static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
@@ -154,7 +159,7 @@ static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
#define W83781D_DEFAULT_BETA 3435
/* Conversions */
-#define IN_TO_REG(val) SENSORS_LIMIT(((val) + 8) / 16, 0, 255)
+#define IN_TO_REG(val) clamp_val(((val) + 8) / 16, 0, 255)
#define IN_FROM_REG(val) ((val) * 16)
static inline u8
@@ -162,8 +167,8 @@ FAN_TO_REG(long rpm, int div)
{
if (rpm == 0)
return 255;
- rpm = SENSORS_LIMIT(rpm, 1, 1000000);
- return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+ rpm = clamp_val(rpm, 1, 1000000);
+ return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
}
static inline long
@@ -176,12 +181,12 @@ FAN_FROM_REG(u8 val, int div)
return 1350000 / (val * div);
}
-#define TEMP_TO_REG(val) SENSORS_LIMIT((val) / 1000, -127, 128)
+#define TEMP_TO_REG(val) clamp_val((val) / 1000, -127, 128)
#define TEMP_FROM_REG(val) ((val) * 1000)
-#define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \
+#define BEEP_MASK_FROM_REG(val, type) ((type) == as99127f ? \
(~(val)) & 0x7fff : (val) & 0xff7fff)
-#define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \
+#define BEEP_MASK_TO_REG(val, type) ((type) == as99127f ? \
(~(val)) & 0x7fff : (val) & 0xff7fff)
#define DIV_FROM_REG(val) (1 << (val))
@@ -190,9 +195,8 @@ static inline u8
DIV_TO_REG(long val, enum chips type)
{
int i;
- val = SENSORS_LIMIT(val, 1,
- ((type == w83781d
- || type == as99127f) ? 8 : 128)) >> 1;
+ val = clamp_val(val, 1,
+ ((type == w83781d || type == as99127f) ? 8 : 128)) >> 1;
for (i = 0; i < 7; i++) {
if (val == 0)
break;
@@ -235,9 +239,11 @@ struct w83781d_data {
u32 beep_mask; /* Register encoding, combined */
u8 pwm[4]; /* Register value */
u8 pwm2_enable; /* Boolean */
- u16 sens[3]; /* 782D/783S only.
- 1 = pentium diode; 2 = 3904 diode;
- 4 = thermistor */
+ u16 sens[3]; /*
+ * 782D/783S only.
+ * 1 = pentium diode; 2 = 3904 diode;
+ * 4 = thermistor
+ */
u8 vrm;
};
@@ -251,7 +257,7 @@ static void w83781d_init_device(struct device *dev);
/* following are the sysfs callback functions */
#define show_in_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
@@ -264,20 +270,21 @@ show_in_reg(in_min);
show_in_reg(in_max);
#define store_in_reg(REG, reg) \
-static ssize_t store_in_##reg (struct device *dev, struct device_attribute \
+static ssize_t store_in_##reg(struct device *dev, struct device_attribute \
*da, const char *buf, size_t count) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = dev_get_drvdata(dev); \
int nr = attr->index; \
- u32 val; \
- \
- val = simple_strtoul(buf, NULL, 10); \
- \
+ unsigned long val; \
+ int err = kstrtoul(buf, 10, &val); \
+ if (err) \
+ return err; \
mutex_lock(&data->update_lock); \
data->in_##reg[nr] = IN_TO_REG(val); \
- w83781d_write_value(data, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
- \
+ w83781d_write_value(data, W83781D_REG_IN_##REG(nr), \
+ data->in_##reg[nr]); \
+ \
mutex_unlock(&data->update_lock); \
return count; \
}
@@ -303,12 +310,12 @@ sysfs_in_offsets(7);
sysfs_in_offsets(8);
#define show_fan_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = w83781d_update_device(dev); \
- return sprintf(buf,"%ld\n", \
+ return sprintf(buf, "%ld\n", \
FAN_FROM_REG(data->reg[attr->index], \
DIV_FROM_REG(data->fan_div[attr->index]))); \
}
@@ -322,9 +329,12 @@ store_fan_min(struct device *dev, struct device_attribute *da,
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->fan_min[nr] =
@@ -347,17 +357,17 @@ static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
show_fan_min, store_fan_min, 2);
#define show_temp_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = w83781d_update_device(dev); \
int nr = attr->index; \
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
- return sprintf(buf,"%d\n", \
+ return sprintf(buf, "%d\n", \
LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
} else { /* TEMP1 */ \
- return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
+ return sprintf(buf, "%ld\n", (long)TEMP_FROM_REG(data->reg)); \
} \
}
show_temp_reg(temp);
@@ -365,16 +375,16 @@ show_temp_reg(temp_max);
show_temp_reg(temp_max_hyst);
#define store_temp_reg(REG, reg) \
-static ssize_t store_temp_##reg (struct device *dev, \
+static ssize_t store_temp_##reg(struct device *dev, \
struct device_attribute *da, const char *buf, size_t count) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = dev_get_drvdata(dev); \
int nr = attr->index; \
long val; \
- \
- val = simple_strtol(buf, NULL, 10); \
- \
+ int err = kstrtol(buf, 10, &val); \
+ if (err) \
+ return err; \
mutex_lock(&data->update_lock); \
\
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
@@ -422,13 +432,17 @@ show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
-store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+store_vrm_reg(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
- data->vrm = val;
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ data->vrm = clamp_val(val, 0, 255);
return count;
}
@@ -477,7 +491,8 @@ static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_temp3_alarm, NULL, 0);
-static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_beep_mask(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%ld\n",
@@ -489,9 +504,12 @@ store_beep_mask(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->beep_mask &= 0x8000; /* preserve beep enable */
@@ -526,10 +544,14 @@ store_beep(struct device *dev, struct device_attribute *attr,
{
struct w83781d_data *data = dev_get_drvdata(dev);
int bitnr = to_sensor_dev_attr(attr)->index;
- unsigned long bit;
u8 reg;
+ unsigned long bit;
+ int err;
+
+ err = kstrtoul(buf, 10, &bit);
+ if (err)
+ return err;
- bit = simple_strtoul(buf, NULL, 10);
if (bit & ~1)
return -EINVAL;
@@ -617,10 +639,12 @@ show_fan_div(struct device *dev, struct device_attribute *da, char *buf)
(long) DIV_FROM_REG(data->fan_div[attr->index]));
}
-/* Note: we save and restore the fan minimum here, because its value is
- determined in part by the fan divisor. This follows the principle of
- least surprise; the user doesn't expect the fan minimum to change just
- because the divisor changed. */
+/*
+ * Note: we save and restore the fan minimum here, because its value is
+ * determined in part by the fan divisor. This follows the principle of
+ * least surprise; the user doesn't expect the fan minimum to change just
+ * because the divisor changed.
+ */
static ssize_t
store_fan_div(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
@@ -630,7 +654,12 @@ store_fan_div(struct device *dev, struct device_attribute *da,
unsigned long min;
int nr = attr->index;
u8 reg;
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
@@ -640,10 +669,12 @@ store_fan_div(struct device *dev, struct device_attribute *da,
data->fan_div[nr] = DIV_TO_REG(val, data->type);
- reg = (w83781d_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
- & (nr==0 ? 0xcf : 0x3f))
- | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
- w83781d_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+ reg = (w83781d_read_value(data, nr == 2 ?
+ W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+ & (nr == 0 ? 0xcf : 0x3f))
+ | ((data->fan_div[nr] & 0x03) << (nr == 0 ? 4 : 6));
+ w83781d_write_value(data, nr == 2 ?
+ W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
/* w83781d and as99127f don't have extended divisor bits */
if (data->type != w83781d && data->type != as99127f) {
@@ -690,12 +721,15 @@ store_pwm(struct device *dev, struct device_attribute *da, const char *buf,
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
- data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
+ data->pwm[nr] = clamp_val(val, 0, 255);
w83781d_write_value(data, W83781D_REG_PWM[nr], data->pwm[nr]);
mutex_unlock(&data->update_lock);
return count;
@@ -706,9 +740,13 @@ store_pwm2_enable(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
- u32 val, reg;
+ unsigned long val;
+ u32 reg;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
@@ -758,9 +796,13 @@ store_sensor(struct device *dev, struct device_attribute *da,
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
- u32 val, tmp;
+ unsigned long val;
+ u32 tmp;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
@@ -784,8 +826,9 @@ store_sensor(struct device *dev, struct device_attribute *da,
data->sens[nr] = val;
break;
case W83781D_DEFAULT_BETA:
- dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
- "instead\n", W83781D_DEFAULT_BETA);
+ dev_warn(dev,
+ "Sensor type %d is deprecated, please use 4 instead\n",
+ W83781D_DEFAULT_BETA);
/* fall through */
case 4: /* thermistor */
tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
@@ -810,7 +853,8 @@ static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
show_sensor, store_sensor, 2);
-/* Assumes that adapter is of I2C, not ISA variety.
+/*
+ * Assumes that adapter is of I2C, not ISA variety.
* OTHERWISE DON'T CALL THIS
*/
static int
@@ -823,6 +867,7 @@ w83781d_detect_subclients(struct i2c_client *new_client)
struct i2c_adapter *adapter = new_client->adapter;
struct w83781d_data *data = i2c_get_clientdata(new_client);
enum chips kind = data->type;
+ int num_sc = 1;
id = i2c_adapter_id(adapter);
@@ -830,8 +875,8 @@ w83781d_detect_subclients(struct i2c_client *new_client)
for (i = 2; i <= 3; i++) {
if (force_subclients[i] < 0x48 ||
force_subclients[i] > 0x4f) {
- dev_err(&new_client->dev, "Invalid subclient "
- "address %d; must be 0x48-0x4f\n",
+ dev_err(&new_client->dev,
+ "Invalid subclient address %d; must be 0x48-0x4f\n",
force_subclients[i]);
err = -EINVAL;
goto ERROR_SC_1;
@@ -847,6 +892,7 @@ w83781d_detect_subclients(struct i2c_client *new_client)
}
if (kind != w83783s) {
+ num_sc = 2;
if (force_subclients[0] == id &&
force_subclients[1] == address) {
sc_addr[1] = force_subclients[3];
@@ -862,19 +908,17 @@ w83781d_detect_subclients(struct i2c_client *new_client)
}
}
- for (i = 0; i <= 1; i++) {
+ for (i = 0; i < num_sc; i++) {
data->lm75[i] = i2c_new_dummy(adapter, sc_addr[i]);
if (!data->lm75[i]) {
- dev_err(&new_client->dev, "Subclient %d "
- "registration at address 0x%x "
- "failed.\n", i, sc_addr[i]);
+ dev_err(&new_client->dev,
+ "Subclient %d registration at address 0x%x failed.\n",
+ i, sc_addr[i]);
err = -ENOMEM;
if (i == 1)
goto ERROR_SC_3;
goto ERROR_SC_2;
}
- if (kind == w83783s)
- break;
}
return 0;
@@ -908,7 +952,7 @@ ERROR_SC_1:
&sensor_dev_attr_temp##X##_alarm.dev_attr.attr, \
&sensor_dev_attr_temp##X##_beep.dev_attr.attr
-static struct attribute* w83781d_attributes[] = {
+static struct attribute *w83781d_attributes[] = {
IN_UNIT_ATTRS(0),
IN_UNIT_ATTRS(2),
IN_UNIT_ATTRS(3),
@@ -931,23 +975,58 @@ static const struct attribute_group w83781d_group = {
.attrs = w83781d_attributes,
};
-static struct attribute *w83781d_attributes_opt[] = {
+static struct attribute *w83781d_attributes_in1[] = {
IN_UNIT_ATTRS(1),
+ NULL
+};
+static const struct attribute_group w83781d_group_in1 = {
+ .attrs = w83781d_attributes_in1,
+};
+
+static struct attribute *w83781d_attributes_in78[] = {
IN_UNIT_ATTRS(7),
IN_UNIT_ATTRS(8),
+ NULL
+};
+static const struct attribute_group w83781d_group_in78 = {
+ .attrs = w83781d_attributes_in78,
+};
+
+static struct attribute *w83781d_attributes_temp3[] = {
TEMP_UNIT_ATTRS(3),
+ NULL
+};
+static const struct attribute_group w83781d_group_temp3 = {
+ .attrs = w83781d_attributes_temp3,
+};
+
+static struct attribute *w83781d_attributes_pwm12[] = {
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
+ &dev_attr_pwm2_enable.attr,
+ NULL
+};
+static const struct attribute_group w83781d_group_pwm12 = {
+ .attrs = w83781d_attributes_pwm12,
+};
+
+static struct attribute *w83781d_attributes_pwm34[] = {
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
- &dev_attr_pwm2_enable.attr,
+ NULL
+};
+static const struct attribute_group w83781d_group_pwm34 = {
+ .attrs = w83781d_attributes_pwm34,
+};
+
+static struct attribute *w83781d_attributes_other[] = {
&sensor_dev_attr_temp1_type.dev_attr.attr,
&sensor_dev_attr_temp2_type.dev_attr.attr,
&sensor_dev_attr_temp3_type.dev_attr.attr,
NULL
};
-static const struct attribute_group w83781d_group_opt = {
- .attrs = w83781d_attributes_opt,
+static const struct attribute_group w83781d_group_other = {
+ .attrs = w83781d_attributes_other,
};
/* No clean up is done on error, it's up to the caller */
@@ -956,56 +1035,23 @@ w83781d_create_files(struct device *dev, int kind, int is_isa)
{
int err;
- if ((err = sysfs_create_group(&dev->kobj, &w83781d_group)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group);
+ if (err)
return err;
if (kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_in1_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_beep.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_in1);
+ if (err)
return err;
}
if (kind != as99127f && kind != w83781d && kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_in7_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_beep.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_beep.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_in78);
+ if (err)
return err;
}
if (kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_temp3_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_max_hyst.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_beep.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_temp3);
+ if (err)
return err;
if (kind != w83781d) {
@@ -1018,30 +1064,29 @@ w83781d_create_files(struct device *dev, int kind, int is_isa)
}
if (kind != w83781d && kind != as99127f) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm1.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm2.dev_attr))
- || (err = device_create_file(dev, &dev_attr_pwm2_enable)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_pwm12);
+ if (err)
return err;
}
if (kind == w83782d && !is_isa) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm3.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm4.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_pwm34);
+ if (err)
return err;
}
if (kind != as99127f && kind != w83781d) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_temp1_type.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp2_type.dev_attr)))
+ err = device_create_file(dev,
+ &sensor_dev_attr_temp1_type.dev_attr);
+ if (err)
+ return err;
+ err = device_create_file(dev,
+ &sensor_dev_attr_temp2_type.dev_attr);
+ if (err)
return err;
if (kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_temp3_type.dev_attr)))
+ err = device_create_file(dev,
+ &sensor_dev_attr_temp3_type.dev_attr);
+ if (err)
return err;
}
}
@@ -1051,117 +1096,96 @@ w83781d_create_files(struct device *dev, int kind, int is_isa)
/* Return 0 if detection is successful, -ENODEV otherwise */
static int
-w83781d_detect(struct i2c_client *client, int kind,
- struct i2c_board_info *info)
+w83781d_detect(struct i2c_client *client, struct i2c_board_info *info)
{
- int val1 = 0, val2;
+ int val1, val2;
struct w83781d_data *isa = w83781d_data_if_isa();
struct i2c_adapter *adapter = client->adapter;
int address = client->addr;
- const char *client_name = "";
+ const char *client_name;
enum vendor { winbond, asus } vendid;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- /* We block updates of the ISA device to minimize the risk of
- concurrent access to the same W83781D chip through different
- interfaces. */
+ /*
+ * We block updates of the ISA device to minimize the risk of
+ * concurrent access to the same W83781D chip through different
+ * interfaces.
+ */
if (isa)
mutex_lock(&isa->update_lock);
- /* The w8378?d may be stuck in some other bank than bank 0. This may
- make reading other information impossible. Specify a force=... or
- force_*=... parameter, and the Winbond will be reset to the right
- bank. */
- if (kind < 0) {
- if (i2c_smbus_read_byte_data
- (client, W83781D_REG_CONFIG) & 0x80) {
- dev_dbg(&adapter->dev, "Detection of w83781d chip "
- "failed at step 3\n");
- goto err_nodev;
- }
- val1 = i2c_smbus_read_byte_data(client, W83781D_REG_BANK);
- val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN);
- /* Check for Winbond or Asus ID if in bank 0 */
- if ((!(val1 & 0x07)) &&
- (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3))
- || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) {
- dev_dbg(&adapter->dev, "Detection of w83781d chip "
- "failed at step 4\n");
+ if (i2c_smbus_read_byte_data(client, W83781D_REG_CONFIG) & 0x80) {
+ dev_dbg(&adapter->dev,
+ "Detection of w83781d chip failed at step 3\n");
+ goto err_nodev;
+ }
+
+ val1 = i2c_smbus_read_byte_data(client, W83781D_REG_BANK);
+ val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN);
+ /* Check for Winbond or Asus ID if in bank 0 */
+ if (!(val1 & 0x07) &&
+ ((!(val1 & 0x80) && val2 != 0xa3 && val2 != 0xc3) ||
+ ((val1 & 0x80) && val2 != 0x5c && val2 != 0x12))) {
+ dev_dbg(&adapter->dev,
+ "Detection of w83781d chip failed at step 4\n");
+ goto err_nodev;
+ }
+ /*
+ * If Winbond SMBus, check address at 0x48.
+ * Asus doesn't support, except for as99127f rev.2
+ */
+ if ((!(val1 & 0x80) && val2 == 0xa3) ||
+ ((val1 & 0x80) && val2 == 0x5c)) {
+ if (i2c_smbus_read_byte_data(client, W83781D_REG_I2C_ADDR)
+ != address) {
+ dev_dbg(&adapter->dev,
+ "Detection of w83781d chip failed at step 5\n");
goto err_nodev;
}
- /* If Winbond SMBus, check address at 0x48.
- Asus doesn't support, except for as99127f rev.2 */
- if ((!(val1 & 0x80) && (val2 == 0xa3)) ||
- ((val1 & 0x80) && (val2 == 0x5c))) {
- if (i2c_smbus_read_byte_data
- (client, W83781D_REG_I2C_ADDR) != address) {
- dev_dbg(&adapter->dev, "Detection of w83781d "
- "chip failed at step 5\n");
- goto err_nodev;
- }
- }
}
- /* We have either had a force parameter, or we have already detected the
- Winbond. Put it now into bank 0 and Vendor ID High Byte */
+ /* Put it now into bank 0 and Vendor ID High Byte */
i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
(i2c_smbus_read_byte_data(client, W83781D_REG_BANK)
& 0x78) | 0x80);
- /* Determine the chip type. */
- if (kind <= 0) {
- /* get vendor ID */
- val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN);
- if (val2 == 0x5c)
- vendid = winbond;
- else if (val2 == 0x12)
- vendid = asus;
- else {
- dev_dbg(&adapter->dev, "w83781d chip vendor is "
- "neither Winbond nor Asus\n");
- goto err_nodev;
- }
-
- val1 = i2c_smbus_read_byte_data(client, W83781D_REG_WCHIPID);
- if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond)
- kind = w83781d;
- else if (val1 == 0x30 && vendid == winbond)
- kind = w83782d;
- else if (val1 == 0x40 && vendid == winbond && address == 0x2d)
- kind = w83783s;
- else if (val1 == 0x31)
- kind = as99127f;
- else {
- if (kind == 0)
- dev_warn(&adapter->dev, "Ignoring 'force' "
- "parameter for unknown chip at "
- "address 0x%02x\n", address);
- goto err_nodev;
- }
-
- if ((kind == w83781d || kind == w83782d)
- && w83781d_alias_detect(client, val1)) {
- dev_dbg(&adapter->dev, "Device at 0x%02x appears to "
- "be the same as ISA device\n", address);
- goto err_nodev;
- }
+ /* Get the vendor ID */
+ val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN);
+ if (val2 == 0x5c)
+ vendid = winbond;
+ else if (val2 == 0x12)
+ vendid = asus;
+ else {
+ dev_dbg(&adapter->dev,
+ "w83781d chip vendor is neither Winbond nor Asus\n");
+ goto err_nodev;
}
- if (isa)
- mutex_unlock(&isa->update_lock);
-
- if (kind == w83781d) {
+ /* Determine the chip type. */
+ val1 = i2c_smbus_read_byte_data(client, W83781D_REG_WCHIPID);
+ if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond)
client_name = "w83781d";
- } else if (kind == w83782d) {
+ else if (val1 == 0x30 && vendid == winbond)
client_name = "w83782d";
- } else if (kind == w83783s) {
+ else if (val1 == 0x40 && vendid == winbond && address == 0x2d)
client_name = "w83783s";
- } else if (kind == as99127f) {
+ else if (val1 == 0x31)
client_name = "as99127f";
+ else
+ goto err_nodev;
+
+ if (val1 <= 0x30 && w83781d_alias_detect(client, val1)) {
+ dev_dbg(&adapter->dev,
+ "Device at 0x%02x appears to be the same as ISA device\n",
+ address);
+ goto err_nodev;
}
+ if (isa)
+ mutex_unlock(&isa->update_lock);
+
strlcpy(info->type, client_name, I2C_NAME_SIZE);
return 0;
@@ -1172,6 +1196,17 @@ w83781d_detect(struct i2c_client *client, int kind,
return -ENODEV;
}
+static void w83781d_remove_files(struct device *dev)
+{
+ sysfs_remove_group(&dev->kobj, &w83781d_group);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_in1);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_in78);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_temp3);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_pwm12);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_pwm34);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_other);
+}
+
static int
w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
@@ -1179,11 +1214,9 @@ w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
struct w83781d_data *data;
int err;
- data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto ERROR1;
- }
+ data = devm_kzalloc(dev, sizeof(struct w83781d_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
i2c_set_clientdata(client, data);
mutex_init(&data->lock);
@@ -1195,7 +1228,7 @@ w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* attach secondary i2c lm75-like clients */
err = w83781d_detect_subclients(client);
if (err)
- goto ERROR3;
+ return err;
/* Initialize the chip */
w83781d_init_device(dev);
@@ -1203,28 +1236,22 @@ w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* Register sysfs hooks */
err = w83781d_create_files(dev, data->type, 0);
if (err)
- goto ERROR4;
+ goto exit_remove_files;
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
- goto ERROR4;
+ goto exit_remove_files;
}
return 0;
-ERROR4:
- sysfs_remove_group(&dev->kobj, &w83781d_group);
- sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
-
+ exit_remove_files:
+ w83781d_remove_files(dev);
if (data->lm75[0])
i2c_unregister_device(data->lm75[0]);
if (data->lm75[1])
i2c_unregister_device(data->lm75[1]);
-ERROR3:
- i2c_set_clientdata(client, NULL);
- kfree(data);
-ERROR1:
return err;
}
@@ -1235,18 +1262,13 @@ w83781d_remove(struct i2c_client *client)
struct device *dev = &client->dev;
hwmon_device_unregister(data->hwmon_dev);
-
- sysfs_remove_group(&dev->kobj, &w83781d_group);
- sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
+ w83781d_remove_files(dev);
if (data->lm75[0])
i2c_unregister_device(data->lm75[0]);
if (data->lm75[1])
i2c_unregister_device(data->lm75[1]);
- i2c_set_clientdata(client, NULL);
- kfree(data);
-
return 0;
}
@@ -1270,17 +1292,17 @@ w83781d_read_value_i2c(struct w83781d_data *data, u16 reg)
/* convert from ISA to LM75 I2C addresses */
switch (reg & 0xff) {
case 0x50: /* TEMP */
- res = swab16(i2c_smbus_read_word_data(cl, 0));
+ res = i2c_smbus_read_word_swapped(cl, 0);
break;
case 0x52: /* CONFIG */
res = i2c_smbus_read_byte_data(cl, 1);
break;
case 0x53: /* HYST */
- res = swab16(i2c_smbus_read_word_data(cl, 2));
+ res = i2c_smbus_read_word_swapped(cl, 2);
break;
case 0x55: /* OVER */
default:
- res = swab16(i2c_smbus_read_word_data(cl, 3));
+ res = i2c_smbus_read_word_swapped(cl, 3);
break;
}
}
@@ -1314,10 +1336,10 @@ w83781d_write_value_i2c(struct w83781d_data *data, u16 reg, u16 value)
i2c_smbus_write_byte_data(cl, 1, value & 0xff);
break;
case 0x53: /* HYST */
- i2c_smbus_write_word_data(cl, 2, swab16(value));
+ i2c_smbus_write_word_swapped(cl, 2, value);
break;
case 0x55: /* OVER */
- i2c_smbus_write_word_data(cl, 3, swab16(value));
+ i2c_smbus_write_word_swapped(cl, 3, value);
break;
}
}
@@ -1335,35 +1357,47 @@ w83781d_init_device(struct device *dev)
int type = data->type;
u8 tmp;
- if (reset && type != as99127f) { /* this resets registers we don't have
- documentation for on the as99127f */
- /* Resetting the chip has been the default for a long time,
- but it causes the BIOS initializations (fan clock dividers,
- thermal sensor types...) to be lost, so it is now optional.
- It might even go away if nobody reports it as being useful,
- as I see very little reason why this would be needed at
- all. */
- dev_info(dev, "If reset=1 solved a problem you were "
- "having, please report!\n");
+ if (reset && type != as99127f) { /*
+ * this resets registers we don't have
+ * documentation for on the as99127f
+ */
+ /*
+ * Resetting the chip has been the default for a long time,
+ * but it causes the BIOS initializations (fan clock dividers,
+ * thermal sensor types...) to be lost, so it is now optional.
+ * It might even go away if nobody reports it as being useful,
+ * as I see very little reason why this would be needed at
+ * all.
+ */
+ dev_info(dev,
+ "If reset=1 solved a problem you were having, please report!\n");
/* save these registers */
i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
p = w83781d_read_value(data, W83781D_REG_PWMCLK12);
- /* Reset all except Watchdog values and last conversion values
- This sets fan-divs to 2, among others */
+ /*
+ * Reset all except Watchdog values and last conversion values
+ * This sets fan-divs to 2, among others
+ */
w83781d_write_value(data, W83781D_REG_CONFIG, 0x80);
- /* Restore the registers and disable power-on abnormal beep.
- This saves FAN 1/2/3 input/output values set by BIOS. */
+ /*
+ * Restore the registers and disable power-on abnormal beep.
+ * This saves FAN 1/2/3 input/output values set by BIOS.
+ */
w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
w83781d_write_value(data, W83781D_REG_PWMCLK12, p);
- /* Disable master beep-enable (reset turns it on).
- Individual beep_mask should be reset to off but for some reason
- disabling this bit helps some people not get beeped */
+ /*
+ * Disable master beep-enable (reset turns it on).
+ * Individual beep_mask should be reset to off but for some
+ * reason disabling this bit helps some people not get beeped
+ */
w83781d_write_value(data, W83781D_REG_BEEP_INTS2, 0);
}
- /* Disable power-on abnormal beep, as advised by the datasheet.
- Already done if reset=1. */
+ /*
+ * Disable power-on abnormal beep, as advised by the datasheet.
+ * Already done if reset=1.
+ */
if (init && !reset && type != as99127f) {
i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
@@ -1393,8 +1427,8 @@ w83781d_init_device(struct device *dev)
/* Enable temp2 */
tmp = w83781d_read_value(data, W83781D_REG_TEMP2_CONFIG);
if (tmp & 0x01) {
- dev_warn(dev, "Enabling temp2, readings "
- "might not make sense\n");
+ dev_warn(dev,
+ "Enabling temp2, readings might not make sense\n");
w83781d_write_value(data, W83781D_REG_TEMP2_CONFIG,
tmp & 0xfe);
}
@@ -1404,8 +1438,8 @@ w83781d_init_device(struct device *dev)
tmp = w83781d_read_value(data,
W83781D_REG_TEMP3_CONFIG);
if (tmp & 0x01) {
- dev_warn(dev, "Enabling temp3, "
- "readings might not make sense\n");
+ dev_warn(dev,
+ "Enabling temp3, readings might not make sense\n");
w83781d_write_value(data,
W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
}
@@ -1469,7 +1503,7 @@ static struct w83781d_data *w83781d_update_device(struct device *dev)
}
/* Only PWM2 can be disabled */
data->pwm2_enable = (w83781d_read_value(data,
- W83781D_REG_PWMCLK12) & 0x08) >> 3;
+ W83781D_REG_PWMCLK12) & 0x08) >> 3;
}
data->temp = w83781d_read_value(data, W83781D_REG_TEMP(1));
@@ -1520,8 +1554,10 @@ static struct w83781d_data *w83781d_update_device(struct device *dev)
| (w83781d_read_value(data,
W83782D_REG_ALARM2) << 8);
} else {
- /* No real-time status registers, fall back to
- interrupt status registers */
+ /*
+ * No real-time status registers, fall back to
+ * interrupt status registers
+ */
data->alarms = w83781d_read_value(data,
W83781D_REG_ALARM1)
| (w83781d_read_value(data,
@@ -1562,7 +1598,7 @@ static struct i2c_driver w83781d_driver = {
.remove = w83781d_remove,
.id_table = w83781d_ids,
.detect = w83781d_detect,
- .address_data = &addr_data,
+ .address_list = normal_i2c,
};
/*
@@ -1575,8 +1611,10 @@ static struct platform_device *pdev;
static unsigned short isa_address = 0x290;
-/* I2C devices get this name attribute automatically, but for ISA devices
- we must create it by ourselves. */
+/*
+ * I2C devices get this name attribute automatically, but for ISA devices
+ * we must create it by ourselves.
+ */
static ssize_t
show_name(struct device *dev, struct device_attribute *devattr, char *buf)
{
@@ -1606,8 +1644,10 @@ static int w83781d_alias_detect(struct i2c_client *client, u8 chipid)
if (w83781d_read_value(isa, W83781D_REG_WCHIPID) != chipid)
return 0; /* Chip type doesn't match */
- /* We compare all the limit registers, the config register and the
- * interrupt mask registers */
+ /*
+ * We compare all the limit registers, the config register and the
+ * interrupt mask registers
+ */
for (i = 0x2b; i <= 0x3d; i++) {
if (w83781d_read_value(isa, i) !=
i2c_smbus_read_byte_data(client, i))
@@ -1688,12 +1728,14 @@ w83781d_write_value_isa(struct w83781d_data *data, u16 reg, u16 value)
}
}
-/* The SMBus locks itself, usually, but nothing may access the Winbond between
- bank switches. ISA access must always be locked explicitly!
- We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
- would slow down the W83781D access and should not be necessary.
- There are some ugly typecasts here, but the good news is - they should
- nowhere else be necessary! */
+/*
+ * The SMBus locks itself, usually, but nothing may access the Winbond between
+ * bank switches. ISA access must always be locked explicitly!
+ * We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
+ * would slow down the W83781D access and should not be necessary.
+ * There are some ugly typecasts here, but the good news is - they should
+ * nowhere else be necessary!
+ */
static int
w83781d_read_value(struct w83781d_data *data, u16 reg)
{
@@ -1723,7 +1765,7 @@ w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value)
return 0;
}
-static int __devinit
+static int
w83781d_isa_probe(struct platform_device *pdev)
{
int err, reg;
@@ -1732,17 +1774,16 @@ w83781d_isa_probe(struct platform_device *pdev)
/* Reserve the ISA region */
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (!request_region(res->start + W83781D_ADDR_REG_OFFSET, 2,
- "w83781d")) {
- err = -EBUSY;
- goto exit;
- }
+ if (!devm_request_region(&pdev->dev,
+ res->start + W83781D_ADDR_REG_OFFSET, 2,
+ "w83781d"))
+ return -EBUSY;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(struct w83781d_data),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto exit_release_region;
- }
mutex_init(&data->lock);
data->isa_addr = res->start;
platform_set_drvdata(pdev, data);
@@ -1779,27 +1820,19 @@ w83781d_isa_probe(struct platform_device *pdev)
return 0;
exit_remove_files:
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group);
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt);
+ w83781d_remove_files(&pdev->dev);
device_remove_file(&pdev->dev, &dev_attr_name);
- kfree(data);
- exit_release_region:
- release_region(res->start + W83781D_ADDR_REG_OFFSET, 2);
- exit:
return err;
}
-static int __devexit
+static int
w83781d_isa_remove(struct platform_device *pdev)
{
struct w83781d_data *data = platform_get_drvdata(pdev);
hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group);
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt);
+ w83781d_remove_files(&pdev->dev);
device_remove_file(&pdev->dev, &dev_attr_name);
- release_region(data->isa_addr + W83781D_ADDR_REG_OFFSET, 2);
- kfree(data);
return 0;
}
@@ -1810,7 +1843,7 @@ static struct platform_driver w83781d_isa_driver = {
.name = "w83781d",
},
.probe = w83781d_isa_probe,
- .remove = __devexit_p(w83781d_isa_remove),
+ .remove = w83781d_isa_remove,
};
/* return 1 if a supported chip is found, 0 otherwise */
@@ -1818,43 +1851,48 @@ static int __init
w83781d_isa_found(unsigned short address)
{
int val, save, found = 0;
-
- /* We have to request the region in two parts because some
- boards declare base+4 to base+7 as a PNP device */
- if (!request_region(address, 4, "w83781d")) {
- pr_debug("w83781d: Failed to request low part of region\n");
- return 0;
- }
- if (!request_region(address + 4, 4, "w83781d")) {
- pr_debug("w83781d: Failed to request high part of region\n");
- release_region(address, 4);
- return 0;
+ int port;
+
+ /*
+ * Some boards declare base+0 to base+7 as a PNP device, some base+4
+ * to base+7 and some base+5 to base+6. So we better request each port
+ * individually for the probing phase.
+ */
+ for (port = address; port < address + W83781D_EXTENT; port++) {
+ if (!request_region(port, 1, "w83781d")) {
+ pr_debug("Failed to request port 0x%x\n", port);
+ goto release;
+ }
}
#define REALLY_SLOW_IO
- /* We need the timeouts for at least some W83781D-like
- chips. But only if we read 'undefined' registers. */
+ /*
+ * We need the timeouts for at least some W83781D-like
+ * chips. But only if we read 'undefined' registers.
+ */
val = inb_p(address + 1);
if (inb_p(address + 2) != val
|| inb_p(address + 3) != val
|| inb_p(address + 7) != val) {
- pr_debug("w83781d: Detection failed at step 1\n");
+ pr_debug("Detection failed at step %d\n", 1);
goto release;
}
#undef REALLY_SLOW_IO
- /* We should be able to change the 7 LSB of the address port. The
- MSB (busy flag) should be clear initially, set after the write. */
+ /*
+ * We should be able to change the 7 LSB of the address port. The
+ * MSB (busy flag) should be clear initially, set after the write.
+ */
save = inb_p(address + W83781D_ADDR_REG_OFFSET);
if (save & 0x80) {
- pr_debug("w83781d: Detection failed at step 2\n");
+ pr_debug("Detection failed at step %d\n", 2);
goto release;
}
val = ~save & 0x7f;
outb_p(val, address + W83781D_ADDR_REG_OFFSET);
if (inb_p(address + W83781D_ADDR_REG_OFFSET) != (val | 0x80)) {
outb_p(save, address + W83781D_ADDR_REG_OFFSET);
- pr_debug("w83781d: Detection failed at step 3\n");
+ pr_debug("Detection failed at step %d\n", 3);
goto release;
}
@@ -1862,7 +1900,7 @@ w83781d_isa_found(unsigned short address)
outb_p(W83781D_REG_CONFIG, address + W83781D_ADDR_REG_OFFSET);
val = inb_p(address + W83781D_DATA_REG_OFFSET);
if (val & 0x80) {
- pr_debug("w83781d: Detection failed at step 4\n");
+ pr_debug("Detection failed at step %d\n", 4);
goto release;
}
outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET);
@@ -1871,19 +1909,19 @@ w83781d_isa_found(unsigned short address)
val = inb_p(address + W83781D_DATA_REG_OFFSET);
if ((!(save & 0x80) && (val != 0xa3))
|| ((save & 0x80) && (val != 0x5c))) {
- pr_debug("w83781d: Detection failed at step 5\n");
+ pr_debug("Detection failed at step %d\n", 5);
goto release;
}
outb_p(W83781D_REG_I2C_ADDR, address + W83781D_ADDR_REG_OFFSET);
val = inb_p(address + W83781D_DATA_REG_OFFSET);
if (val < 0x03 || val > 0x77) { /* Not a valid I2C address */
- pr_debug("w83781d: Detection failed at step 6\n");
+ pr_debug("Detection failed at step %d\n", 6);
goto release;
}
/* The busy flag should be clear again */
if (inb_p(address + W83781D_ADDR_REG_OFFSET) & 0x80) {
- pr_debug("w83781d: Detection failed at step 7\n");
+ pr_debug("Detection failed at step %d\n", 7);
goto release;
}
@@ -1898,12 +1936,12 @@ w83781d_isa_found(unsigned short address)
found = 1;
if (found)
- pr_info("w83781d: Found a %s chip at %#x\n",
+ pr_info("Found a %s chip at %#x\n",
val == 0x30 ? "W83782D" : "W83781D", (int)address);
release:
- release_region(address + 4, 4);
- release_region(address, 4);
+ for (port--; port >= address; port--)
+ release_region(port, 1);
return found;
}
@@ -1921,21 +1959,19 @@ w83781d_isa_device_add(unsigned short address)
pdev = platform_device_alloc("w83781d", address);
if (!pdev) {
err = -ENOMEM;
- printk(KERN_ERR "w83781d: Device allocation failed\n");
+ pr_err("Device allocation failed\n");
goto exit;
}
err = platform_device_add_resources(pdev, &res, 1);
if (err) {
- printk(KERN_ERR "w83781d: Device resource addition failed "
- "(%d)\n", err);
+ pr_err("Device resource addition failed (%d)\n", err);
goto exit_device_put;
}
err = platform_device_add(pdev);
if (err) {
- printk(KERN_ERR "w83781d: Device addition failed (%d)\n",
- err);
+ pr_err("Device addition failed (%d)\n", err);
goto exit_device_put;
}
@@ -2032,8 +2068,10 @@ sensors_w83781d_init(void)
{
int res;
- /* We register the ISA device first, so that we can skip the
- * registration of an I2C interface to the same device. */
+ /*
+ * We register the ISA device first, so that we can skip the
+ * registration of an I2C interface to the same device.
+ */
res = w83781d_isa_register();
if (res)
goto exit;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:46:13 +0000