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@@ -1,25 +1,25 @@
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/*
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- smsc47m192.c - Support for hardware monitoring block of
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- SMSC LPC47M192 and compatible Super I/O chips
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-
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- Copyright (C) 2006 Hartmut Rick <linux@rick.claranet.de>
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-
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- Derived from lm78.c and other chip drivers.
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-
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- This program is free software; you can redistribute it and/or modify
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- it under the terms of the GNU General Public License as published by
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- the Free Software Foundation; either version 2 of the License, or
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- (at your option) any later version.
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-
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- This program is distributed in the hope that it will be useful,
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- but WITHOUT ANY WARRANTY; without even the implied warranty of
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- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- GNU General Public License for more details.
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-
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- You should have received a copy of the GNU General Public License
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- along with this program; if not, write to the Free Software
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- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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-*/
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+ * smsc47m192.c - Support for hardware monitoring block of
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+ * SMSC LPC47M192 and compatible Super I/O chips
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+ *
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+ * Copyright (C) 2006 Hartmut Rick <linux@rick.claranet.de>
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+ *
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+ * Derived from lm78.c and other chip drivers.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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+ */
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#include <linux/module.h>
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#include <linux/init.h>
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@@ -37,16 +37,16 @@
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static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
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/* SMSC47M192 registers */
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-#define SMSC47M192_REG_IN(nr) ((nr)<6 ? (0x20 + (nr)) : \
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+#define SMSC47M192_REG_IN(nr) ((nr) < 6 ? (0x20 + (nr)) : \
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(0x50 + (nr) - 6))
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-#define SMSC47M192_REG_IN_MAX(nr) ((nr)<6 ? (0x2b + (nr) * 2) : \
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+#define SMSC47M192_REG_IN_MAX(nr) ((nr) < 6 ? (0x2b + (nr) * 2) : \
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(0x54 + (((nr) - 6) * 2)))
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-#define SMSC47M192_REG_IN_MIN(nr) ((nr)<6 ? (0x2c + (nr) * 2) : \
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+#define SMSC47M192_REG_IN_MIN(nr) ((nr) < 6 ? (0x2c + (nr) * 2) : \
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(0x55 + (((nr) - 6) * 2)))
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static u8 SMSC47M192_REG_TEMP[3] = { 0x27, 0x26, 0x52 };
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static u8 SMSC47M192_REG_TEMP_MAX[3] = { 0x39, 0x37, 0x58 };
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static u8 SMSC47M192_REG_TEMP_MIN[3] = { 0x3A, 0x38, 0x59 };
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-#define SMSC47M192_REG_TEMP_OFFSET(nr) ((nr)==2 ? 0x1e : 0x1f)
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+#define SMSC47M192_REG_TEMP_OFFSET(nr) ((nr) == 2 ? 0x1e : 0x1f)
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#define SMSC47M192_REG_ALARM1 0x41
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#define SMSC47M192_REG_ALARM2 0x42
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#define SMSC47M192_REG_VID 0x47
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@@ -80,8 +80,10 @@ static inline u8 IN_TO_REG(unsigned long val, int n)
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return SENSORS_LIMIT(SCALE(val, 192, nom_mv[n]), 0, 255);
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}
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-/* TEMP: 0.001 degC units (-128C to +127C)
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- REG: 1C/bit, two's complement */
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+/*
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+ * TEMP: 0.001 degC units (-128C to +127C)
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+ * REG: 1C/bit, two's complement
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+ */
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static inline s8 TEMP_TO_REG(int val)
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{
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return SENSORS_LIMIT(SCALE(val, 1, 1000), -128000, 127000);
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@@ -170,7 +172,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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- unsigned long val = simple_strtoul(buf, NULL, 10);
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+ unsigned long val;
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+ int err;
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+
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+ err = kstrtoul(buf, 10, &val);
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+ if (err)
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+ return err;
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mutex_lock(&data->update_lock);
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data->in_min[nr] = IN_TO_REG(val, nr);
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@@ -187,7 +194,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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- unsigned long val = simple_strtoul(buf, NULL, 10);
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+ unsigned long val;
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+ int err;
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+
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+ err = kstrtoul(buf, 10, &val);
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+ if (err)
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+ return err;
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mutex_lock(&data->update_lock);
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data->in_max[nr] = IN_TO_REG(val, nr);
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@@ -249,7 +261,12 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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- long val = simple_strtol(buf, NULL, 10);
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+ long val;
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+ int err;
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+
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+ err = kstrtol(buf, 10, &val);
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+ if (err)
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+ return err;
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mutex_lock(&data->update_lock);
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data->temp_min[nr] = TEMP_TO_REG(val);
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@@ -266,7 +283,12 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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- long val = simple_strtol(buf, NULL, 10);
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+ long val;
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+ int err;
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+
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+ err = kstrtol(buf, 10, &val);
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+ if (err)
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+ return err;
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mutex_lock(&data->update_lock);
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data->temp_max[nr] = TEMP_TO_REG(val);
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@@ -293,22 +315,29 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
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- long val = simple_strtol(buf, NULL, 10);
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+ long val;
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+ int err;
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+
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+ err = kstrtol(buf, 10, &val);
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+ if (err)
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+ return err;
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mutex_lock(&data->update_lock);
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data->temp_offset[nr] = TEMP_TO_REG(val);
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- if (nr>1)
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+ if (nr > 1)
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
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else if (data->temp_offset[nr] != 0) {
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- /* offset[0] and offset[1] share the same register,
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- SFR bit 4 activates offset[0] */
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+ /*
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+ * offset[0] and offset[1] share the same register,
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+ * SFR bit 4 activates offset[0]
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+ */
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i2c_smbus_write_byte_data(client, SMSC47M192_REG_SFR,
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- (sfr & 0xef) | (nr==0 ? 0x10 : 0));
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+ (sfr & 0xef) | (nr == 0 ? 0x10 : 0));
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data->temp_offset[1-nr] = 0;
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
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- } else if ((sfr & 0x10) == (nr==0 ? 0x10 : 0))
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+ } else if ((sfr & 0x10) == (nr == 0 ? 0x10 : 0))
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_TEMP_OFFSET(nr), 0);
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mutex_unlock(&data->update_lock);
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@@ -349,7 +378,14 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct smsc47m192_data *data = dev_get_drvdata(dev);
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- data->vrm = simple_strtoul(buf, NULL, 10);
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+ unsigned long val;
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+ int err;
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+
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+ err = kstrtoul(buf, 10, &val);
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+ if (err)
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+ return err;
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+
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+ data->vrm = val;
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return count;
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}
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static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
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@@ -458,13 +494,13 @@ static void smsc47m192_init_client(struct i2c_client *client)
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(sfr & 0xfd) | 0x02);
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if (!(config & 0x01)) {
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/* initialize alarm limits */
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- for (i=0; i<8; i++) {
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+ for (i = 0; i < 8; i++) {
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_IN_MIN(i), 0);
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_IN_MAX(i), 0xff);
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}
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- for (i=0; i<3; i++) {
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+ for (i = 0; i < 3; i++) {
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_TEMP_MIN[i], 0x80);
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i2c_smbus_write_byte_data(client,
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@@ -532,14 +568,16 @@ static int smsc47m192_probe(struct i2c_client *client,
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smsc47m192_init_client(client);
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/* Register sysfs hooks */
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- if ((err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group)))
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+ err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group);
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+ if (err)
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goto exit_free;
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/* Pin 110 is either in4 (+12V) or VID4 */
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config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
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if (!(config & 0x20)) {
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- if ((err = sysfs_create_group(&client->dev.kobj,
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- &smsc47m192_group_in4)))
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+ err = sysfs_create_group(&client->dev.kobj,
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+ &smsc47m192_group_in4);
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+ if (err)
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goto exit_remove_files;
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}
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@@ -606,8 +644,10 @@ static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
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for (i = 1; i < 3; i++)
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data->temp_offset[i] = i2c_smbus_read_byte_data(client,
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SMSC47M192_REG_TEMP_OFFSET(i));
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- /* first offset is temp_offset[0] if SFR bit 4 is set,
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- temp_offset[1] otherwise */
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+ /*
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+ * first offset is temp_offset[0] if SFR bit 4 is set,
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+ * temp_offset[1] otherwise
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+ */
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if (sfr & 0x10) {
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data->temp_offset[0] = data->temp_offset[1];
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data->temp_offset[1] = 0;
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@@ -624,7 +664,7 @@ static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
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data->alarms = i2c_smbus_read_byte_data(client,
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SMSC47M192_REG_ALARM1) |
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(i2c_smbus_read_byte_data(client,
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- SMSC47M192_REG_ALARM2) << 8);
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+ SMSC47M192_REG_ALARM2) << 8);
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data->last_updated = jiffies;
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data->valid = 1;
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