diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index ca4d378c7623..5ce54a297249 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -1,43 +1,43 @@ /* - w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 1998 - 2003 Frodo Looijaard , - Philip Edelbrock , - and Mark Studebaker - Ported to 2.6 by Bernhard C. Schrenk - Copyright (c) 2007 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. -*/ + * w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware + * monitoring + * Copyright (c) 1998 - 2003 Frodo Looijaard , + * Philip Edelbrock , + * and Mark Studebaker + * Ported to 2.6 by Bernhard C. Schrenk + * Copyright (c) 2007 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. + */ /* - 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; - if (!val || (val > 3)) /* modes 1, 2 and 3 are supported */ + err = kstrtoul(buf, 10, &val); + if (err) + return err; + + 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 "