diff options
Diffstat (limited to 'drivers/hwmon/emc2103.c')
-rw-r--r-- | drivers/hwmon/emc2103.c | 50 |
1 files changed, 27 insertions, 23 deletions
diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c index 0f51382df80a..9691f664c76e 100644 --- a/drivers/hwmon/emc2103.c +++ b/drivers/hwmon/emc2103.c | |||
@@ -1,21 +1,21 @@ | |||
1 | /* | 1 | /* |
2 | emc2103.c - Support for SMSC EMC2103 | 2 | * emc2103.c - Support for SMSC EMC2103 |
3 | Copyright (c) 2010 SMSC | 3 | * Copyright (c) 2010 SMSC |
4 | 4 | * | |
5 | This program is free software; you can redistribute it and/or modify | 5 | * This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by | 6 | * it under the terms of the GNU General Public License as published by |
7 | the Free Software Foundation; either version 2 of the License, or | 7 | * the Free Software Foundation; either version 2 of the License, or |
8 | (at your option) any later version. | 8 | * (at your option) any later version. |
9 | 9 | * | |
10 | This program is distributed in the hope that it will be useful, | 10 | * This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. | 13 | * GNU General Public License for more details. |
14 | 14 | * | |
15 | You should have received a copy of the GNU General Public License | 15 | * You should have received a copy of the GNU General Public License |
16 | along with this program; if not, write to the Free Software | 16 | * along with this program; if not, write to the Free Software |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
18 | */ | 18 | */ |
19 | 19 | ||
20 | #include <linux/module.h> | 20 | #include <linux/module.h> |
21 | #include <linux/init.h> | 21 | #include <linux/init.h> |
@@ -48,12 +48,14 @@ static const u8 REG_TEMP_MAX[4] = { 0x34, 0x30, 0x31, 0x32 }; | |||
48 | /* equation 4 from datasheet: rpm = (3932160 * multipler) / count */ | 48 | /* equation 4 from datasheet: rpm = (3932160 * multipler) / count */ |
49 | #define FAN_RPM_FACTOR 3932160 | 49 | #define FAN_RPM_FACTOR 3932160 |
50 | 50 | ||
51 | /* 2103-2 and 2103-4's 3rd temperature sensor can be connected to two diodes | 51 | /* |
52 | * 2103-2 and 2103-4's 3rd temperature sensor can be connected to two diodes | ||
52 | * in anti-parallel mode, and in this configuration both can be read | 53 | * in anti-parallel mode, and in this configuration both can be read |
53 | * independently (so we have 4 temperature inputs). The device can't | 54 | * independently (so we have 4 temperature inputs). The device can't |
54 | * detect if it's connected in this mode, so we have to manually enable | 55 | * detect if it's connected in this mode, so we have to manually enable |
55 | * it. Default is to leave the device in the state it's already in (-1). | 56 | * it. Default is to leave the device in the state it's already in (-1). |
56 | * This parameter allows APD mode to be optionally forced on or off */ | 57 | * This parameter allows APD mode to be optionally forced on or off |
58 | */ | ||
57 | static int apd = -1; | 59 | static int apd = -1; |
58 | module_param(apd, bint, 0); | 60 | module_param(apd, bint, 0); |
59 | MODULE_PARM_DESC(init, "Set to zero to disable anti-parallel diode mode"); | 61 | MODULE_PARM_DESC(init, "Set to zero to disable anti-parallel diode mode"); |
@@ -302,10 +304,12 @@ show_fan_div(struct device *dev, struct device_attribute *da, char *buf) | |||
302 | return sprintf(buf, "%d\n", fan_div); | 304 | return sprintf(buf, "%d\n", fan_div); |
303 | } | 305 | } |
304 | 306 | ||
305 | /* Note: we also update the fan target here, because its value is | 307 | /* |
306 | determined in part by the fan clock divider. This follows the principle | 308 | * Note: we also update the fan target here, because its value is |
307 | of least surprise; the user doesn't expect the fan target to change just | 309 | * determined in part by the fan clock divider. This follows the principle |
308 | because the divider changed. */ | 310 | * of least surprise; the user doesn't expect the fan target to change just |
311 | * because the divider changed. | ||
312 | */ | ||
309 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, | 313 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, |
310 | const char *buf, size_t count) | 314 | const char *buf, size_t count) |
311 | { | 315 | { |