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Commit 27b9de3c authored by Guenter Roeck's avatar Guenter Roeck Committed by Guenter Roeck
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hwmon: (w83627hf) Fix checkpatch issues 

Fixed:
WARNING: simple_strtol is obsolete, use kstrtol instead
WARNING: simple_strtoul is obsolete, use kstrtoul instead
ERROR: do not use assignment in if condition

Modify multi-line comments to follow Documentation/CodingStyle.

Other checkpatch issues not fixed to reduce number of conflicts with pending
rewrite as mfd driver.
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent ca3ccad8
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Showing with 174 additions and 90 deletions
drivers/hwmon/w83627hf.c
View file @ 27b9de3c
/*
w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>,
and Mark Studebaker <mdsxyz123@yahoo.com>
Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
Copyright (c) 2007 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.
*/
* w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
* monitoring
* Copyright (c) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
* Philip Edelbrock <phil@netroedge.com>,
* and Mark Studebaker <mdsxyz123@yahoo.com>
* Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
* Copyright (c) 2007 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.
*/
/*
Supports following chips:
Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
w83627hf 9 3 2 3 0x20 0x5ca3 no yes(LPC)
w83627thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
w83637hf 7 3 3 3 0x80 0x5ca3 no yes(LPC)
w83687thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
w83697hf 8 2 2 2 0x60 0x5ca3 no yes(LPC)
For other winbond chips, and for i2c support in the above chips,
use w83781d.c.
Note: automatic ("cruise") fan control for 697, 637 & 627thf not
supported yet.
*/
* Supports following chips:
*
* Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
* w83627hf 9 3 2 3 0x20 0x5ca3 no yes(LPC)
* w83627thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
* w83637hf 7 3 3 3 0x80 0x5ca3 no yes(LPC)
* w83687thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
* w83697hf 8 2 2 2 0x60 0x5ca3 no yes(LPC)
*
* For other winbond chips, and for i2c support in the above chips,
* use w83781d.c.
*
* Note: automatic ("cruise") fan control for 697, 637 & 627thf not
* supported yet.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
......@@ -80,7 +80,7 @@ module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");
/* modified from kernel/include/traps.c */
#define DEV 0x07 /* Register: Logical device select */
#define DEV 0x07 /* Register: Logical device select */
/* logical device numbers for superio_select (below) */
#define W83627HF_LD_FDC 0x00
......@@ -99,7 +99,7 @@ MODULE_PARM_DESC(force_id, "Override the detected device ID");
#define W83627HF_LD_ACPI 0x0a
#define W83627HF_LD_HWM 0x0b
#define DEVID 0x20 /* Register: Device ID */
#define DEVID 0x20 /* Register: Device ID */
#define W83627THF_GPIO5_EN 0x30 /* w83627thf only */
#define W83627THF_GPIO5_IOSR 0xf3 /* w83627thf only */
......@@ -248,10 +248,12 @@ static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
#define W83781D_DEFAULT_BETA 3435
/* Conversions. Limit checking is only done on the TO_REG
variants. Note that you should be a bit careful with which arguments
these macros are called: arguments may be evaluated more than once.
Fixing this is just not worth it. */
/*
* Conversions. Limit checking is only done on the TO_REG
* variants. Note that you should be a bit careful with which arguments
* these macros are called: arguments may be evaluated more than once.
* Fixing this is just not worth it.
*/
#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))
#define IN_FROM_REG(val) ((val) * 16)
......@@ -267,8 +269,10 @@ static inline u8 FAN_TO_REG(long rpm, int div)
#define TEMP_MIN (-128000)
#define TEMP_MAX ( 127000)
/* TEMP: 0.001C/bit (-128C to +127C)
REG: 1C/bit, two's complement */
/*
* TEMP: 0.001C/bit (-128C to +127C)
* REG: 1C/bit, two's complement
*/
static u8 TEMP_TO_REG(long temp)
{
int ntemp = SENSORS_LIMIT(temp, TEMP_MIN, TEMP_MAX);
......@@ -294,8 +298,10 @@ static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
{
u8 i;
/* Only 5 dividers (1 2 4 8 16)
Search for the nearest available frequency */
/*
* Only 5 dividers (1 2 4 8 16)
* Search for the nearest available frequency
*/
for (i = 0; i < 4; i++) {
if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
(W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
......@@ -345,8 +351,10 @@ static inline u8 DIV_TO_REG(long val)
return (u8)i;
}
/* For each registered chip, we need to keep some data in memory.
The structure is dynamically allocated. */
/*
* For each registered chip, we need to keep some data in memory.
* The structure is dynamically allocated.
*/
struct w83627hf_data {
unsigned short addr;
const char *name;
......@@ -372,11 +380,13 @@ struct w83627hf_data {
u32 beep_mask; /* Register encoding, combined */
u8 pwm[3]; /* Register value */
u8 pwm_enable[3]; /* 1 = manual
2 = thermal cruise (also called SmartFan I)
3 = fan speed cruise */
* 2 = thermal cruise (also called SmartFan I)
* 3 = fan speed cruise
*/
u8 pwm_freq[3]; /* Register value */
u16 sens[3]; /* 1 = pentium diode; 2 = 3904 diode;
4 = thermistor */
* 4 = thermistor
*/
u8 vrm;
u8 vrm_ovt; /* Register value, 627THF/637HF/687THF only */
};
......@@ -427,7 +437,12 @@ store_in_min(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
long val;
int err;
err = kstrtol(buf, 10, &val);
if (err)
return err;
mutex_lock(&data->update_lock);
data->in_min[nr] = IN_TO_REG(val);
......@@ -441,7 +456,12 @@ store_in_max(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
long val;
int err;
err = kstrtol(buf, 10, &val);
if (err)
return err;
mutex_lock(&data->update_lock);
data->in_max[nr] = IN_TO_REG(val);
......@@ -506,9 +526,12 @@ static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *a
const char *buf, size_t count)
{
struct w83627hf_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);
......@@ -533,9 +556,12 @@ static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *a
const char *buf, size_t count)
{
struct w83627hf_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);
......@@ -584,7 +610,12 @@ store_fan_min(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 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);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
......@@ -645,9 +676,15 @@ store_temp_max(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
u16 tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
u16 tmp;
long val;
int err;
err = kstrtol(buf, 10, &val);
if (err)
return err;
tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
mutex_lock(&data->update_lock);
data->temp_max[nr] = tmp;
w83627hf_write_value(data, w83627hf_reg_temp_over[nr], tmp);
......@@ -661,9 +698,15 @@ store_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
u16 tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
u16 tmp;
long val;
int err;
err = kstrtol(buf, 10, &val);
if (err)
return err;
tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
mutex_lock(&data->update_lock);
data->temp_max_hyst[nr] = tmp;
w83627hf_write_value(data, w83627hf_reg_temp_hyst[nr], tmp);
......@@ -701,9 +744,12 @@ static ssize_t
store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct w83627hf_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;
data->vrm = val;
return count;
......@@ -755,8 +801,11 @@ store_beep_mask(struct device *dev, struct device_attribute *attr,
{
struct w83627hf_data *data = dev_get_drvdata(dev);
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);
......@@ -791,10 +840,14 @@ store_beep(struct device *dev, struct device_attribute *attr,
{
struct w83627hf_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;
......@@ -872,10 +925,12 @@ show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
return sprintf(buf, "%ld\n",
(long) DIV_FROM_REG(data->fan_div[nr]));
}
/* 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 *devattr,
const char *buf, size_t count)
......@@ -884,7 +939,12 @@ store_fan_div(struct device *dev, struct device_attribute *devattr,
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long min;
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);
......@@ -933,7 +993,12 @@ store_pwm(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 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);
......@@ -974,10 +1039,15 @@ store_pwm_enable(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long val = simple_strtoul(buf, NULL, 10);
u8 reg;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err)
return err;
if (!val || (val > 3)) /* modes 1, 2 and 3 are supported */
if (!val || val > 3) /* modes 1, 2 and 3 are supported */
return -EINVAL;
mutex_lock(&data->update_lock);
data->pwm_enable[nr] = val;
......@@ -1016,9 +1086,12 @@ store_pwm_freq(struct device *dev, struct device_attribute *devattr,
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
static const u8 mask[]={0xF8, 0x8F};
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);
......@@ -1060,9 +1133,13 @@ store_temp_type(struct device *dev, struct device_attribute *devattr,
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
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);
......@@ -1290,7 +1367,8 @@ static int __devinit w83627hf_probe(struct platform_device *pdev)
goto ERROR0;
}
if (!(data = kzalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
data = kzalloc(sizeof(struct w83627hf_data), GFP_KERNEL);
if (!data) {
err = -ENOMEM;
goto ERROR1;
}
......@@ -1311,7 +1389,8 @@ static int __devinit w83627hf_probe(struct platform_device *pdev)
w83627hf_update_fan_div(data);
/* Register common device attributes */
if ((err = sysfs_create_group(&dev->kobj, &w83627hf_group)))
err = sysfs_create_group(&dev->kobj, &w83627hf_group);
if (err)
goto ERROR3;
/* Register chip-specific device attributes */
......@@ -1387,10 +1466,11 @@ static int __devinit w83627hf_probe(struct platform_device *pdev)
}
if (data->type == w83627thf || data->type == w83637hf
|| data->type == w83687thf)
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm3.dev_attr)))
|| data->type == w83687thf) {
err = device_create_file(dev, &sensor_dev_attr_pwm3.dev_attr);
if (err)
goto ERROR4;
}
if (data->type == w83637hf || data->type == w83687thf)
if ((err = device_create_file(dev,
......@@ -1409,10 +1489,12 @@ static int __devinit w83627hf_probe(struct platform_device *pdev)
goto ERROR4;
if (data->type == w83627thf || data->type == w83637hf
|| data->type == w83687thf)
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm3_enable.dev_attr)))
|| data->type == w83687thf) {
err = device_create_file(dev,
&sensor_dev_attr_pwm3_enable.dev_attr);
if (err)
goto ERROR4;
}
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
......@@ -1510,8 +1592,10 @@ static int __devinit w83627thf_read_gpio5(struct platform_device *pdev)
goto exit;
}
/* Make sure the pins are configured for input
There must be at least five (VRM 9), and possibly 6 (VRM 10) */
/*
* Make sure the pins are configured for input
* There must be at least five (VRM 9), and possibly 6 (VRM 10)
*/
sel = superio_inb(sio_data, W83627THF_GPIO5_IOSR) & 0x3f;
if ((sel & 0x1f) != 0x1f) {
dev_dbg(&pdev->dev, "GPIO5 not configured for VID "
......
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