hwmon: (smsc47m1) Fix checkpatch issues
Fixed: ERROR: code indent should use tabs where possible ERROR: do not use assignment in if condition ERROR: space required after that ',' (ctx:VxV) ERROR: spaces required around that '<=' (ctx:VxV) ERROR: spaces required around that '==' (ctx:VxV) ERROR: spaces required around that '>=' (ctx:VxV) ERROR: trailing statements should be on next line ERROR: trailing whitespace WARNING: simple_strtol is obsolete, use kstrtol instead WARNING: static const char * array should probably be static const char * const Modify multi-line comments to follow Documentation/CodingStyle. Also: s/#define^I/#define / Not fixed (false positive): ERROR: Macros with multiple statements should be enclosed in a do - while loop Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>hifive-unleashed-5.1
Guenter Roeck
Guenter Roeck
parent
7e612685a3
commit
85a0c0d1a1
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@ -1,30 +1,30 @@
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/*
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smsc47m1.c - Part of lm_sensors, Linux kernel modules
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for hardware monitoring
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Supports the SMSC LPC47B27x, LPC47M10x, LPC47M112, LPC47M13x,
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LPC47M14x, LPC47M15x, LPC47M192, LPC47M292 and LPC47M997
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Super-I/O chips.
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Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
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Copyright (C) 2004-2007 Jean Delvare <khali@linux-fr.org>
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Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
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and Jean Delvare
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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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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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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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* smsc47m1.c - Part of lm_sensors, Linux kernel modules
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* for hardware monitoring
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*
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* Supports the SMSC LPC47B27x, LPC47M10x, LPC47M112, LPC47M13x,
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* LPC47M14x, LPC47M15x, LPC47M192, LPC47M292 and LPC47M997
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* Super-I/O chips.
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*
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* Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
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* Copyright (C) 2004-2007 Jean Delvare <khali@linux-fr.org>
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* Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
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* and Jean Delvare
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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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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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@ -53,8 +53,8 @@ enum chips { smsc47m1, smsc47m2 };
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/* Super-I/0 registers and commands */
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#define REG 0x2e /* The register to read/write */
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#define VAL 0x2f /* The value to read/write */
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#define REG 0x2e /* The register to read/write */
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#define VAL 0x2f /* The value to read/write */
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static inline void
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superio_outb(int reg, int val)
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@ -111,10 +111,11 @@ static const u8 SMSC47M1_REG_PWM[3] = { 0x56, 0x57, 0x69 };
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#define SMSC47M2_REG_PPIN3 0x2c
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#define SMSC47M2_REG_FANDIV3 0x6a
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#define MIN_FROM_REG(reg,div) ((reg)>=192 ? 0 : \
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983040/((192-(reg))*(div)))
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#define FAN_FROM_REG(reg,div,preload) ((reg)<=(preload) || (reg)==255 ? 0 : \
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983040/(((reg)-(preload))*(div)))
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#define MIN_FROM_REG(reg, div) ((reg) >= 192 ? 0 : \
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983040 / ((192 - (reg)) * (div)))
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#define FAN_FROM_REG(reg, div, preload) ((reg) <= (preload) || (reg) == 255 ? \
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0 : \
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983040 / (((reg) - (preload)) * (div)))
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#define DIV_FROM_REG(reg) (1 << (reg))
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#define PWM_FROM_REG(reg) (((reg) & 0x7E) << 1)
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#define PWM_EN_FROM_REG(reg) ((~(reg)) & 0x01)
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@ -171,10 +172,12 @@ static ssize_t get_fan(struct device *dev, struct device_attribute
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
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int nr = attr->index;
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/* This chip (stupidly) stops monitoring fan speed if PWM is
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enabled and duty cycle is 0%. This is fine if the monitoring
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and control concern the same fan, but troublesome if they are
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not (which could as well happen). */
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/*
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* This chip (stupidly) stops monitoring fan speed if PWM is
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* enabled and duty cycle is 0%. This is fine if the monitoring
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* and control concern the same fan, but troublesome if they are
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* not (which could as well happen).
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*/
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int rpm = (data->pwm[nr] & 0x7F) == 0x00 ? 0 :
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FAN_FROM_REG(data->fan[nr],
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DIV_FROM_REG(data->fan_div[nr]),
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@ -238,7 +241,13 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct smsc47m1_data *data = dev_get_drvdata(dev);
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int nr = attr->index;
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long rpmdiv, val = simple_strtol(buf, NULL, 10);
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long rpmdiv;
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long val;
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int err;
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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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rpmdiv = val * DIV_FROM_REG(data->fan_div[nr]);
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@ -256,28 +265,44 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute
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return count;
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}
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/* Note: we save and restore the fan minimum here, because its value is
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determined in part by the fan clock divider. This follows the principle
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of least surprise; the user doesn't expect the fan minimum to change just
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because the divider changed. */
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/*
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* Note: we save and restore the fan minimum here, because its value is
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* determined in part by the fan clock divider. This follows the principle
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* of least surprise; the user doesn't expect the fan minimum to change just
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* because the divider changed.
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*/
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static ssize_t set_fan_div(struct device *dev, struct device_attribute
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*devattr, const char *buf, size_t count)
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{
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct smsc47m1_data *data = dev_get_drvdata(dev);
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int nr = attr->index;
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long new_div = simple_strtol(buf, NULL, 10), tmp;
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long new_div;
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int err;
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long tmp;
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u8 old_div = DIV_FROM_REG(data->fan_div[nr]);
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err = kstrtol(buf, 10, &new_div);
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if (err)
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return err;
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if (new_div == old_div) /* No change */
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return count;
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mutex_lock(&data->update_lock);
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switch (new_div) {
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case 1: data->fan_div[nr] = 0; break;
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case 2: data->fan_div[nr] = 1; break;
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case 4: data->fan_div[nr] = 2; break;
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case 8: data->fan_div[nr] = 3; break;
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case 1:
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data->fan_div[nr] = 0;
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break;
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case 2:
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data->fan_div[nr] = 1;
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break;
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case 4:
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data->fan_div[nr] = 2;
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break;
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case 8:
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data->fan_div[nr] = 3;
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break;
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default:
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mutex_unlock(&data->update_lock);
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return -EINVAL;
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@ -315,7 +340,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct smsc47m1_data *data = dev_get_drvdata(dev);
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int nr = attr->index;
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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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err = kstrtol(buf, 10, &val);
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if (err)
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return err;
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if (val < 0 || val > 255)
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return -EINVAL;
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@ -336,9 +366,14 @@ static ssize_t set_pwm_en(struct device *dev, struct device_attribute
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct smsc47m1_data *data = dev_get_drvdata(dev);
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int nr = attr->index;
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long val = simple_strtol(buf, NULL, 10);
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if (val != 0 && val != 1)
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unsigned long val;
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int err;
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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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if (val > 1)
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return -EINVAL;
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mutex_lock(&data->update_lock);
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@ -519,8 +554,10 @@ static int __init smsc47m1_find(unsigned short *addr,
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return -ENODEV;
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}
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/* Enable only if address is set (needed at least on the
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* Compaq Presario S4000NX) */
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/*
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* Enable only if address is set (needed at least on the
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* Compaq Presario S4000NX)
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*/
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sio_data->activate = superio_inb(SUPERIO_REG_ACT);
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if ((sio_data->activate & 0x01) == 0) {
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pr_info("Enabling device\n");
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@ -646,7 +683,7 @@ static int __init smsc47m1_probe(struct platform_device *pdev)
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int err;
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int fan1, fan2, fan3, pwm1, pwm2, pwm3;
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static const char *names[] = {
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static const char * const names[] = {
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"smsc47m1",
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"smsc47m2",
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};
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@ -657,7 +694,8 @@ static int __init smsc47m1_probe(struct platform_device *pdev)
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if (err < 0)
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return err;
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if (!(data = kzalloc(sizeof(struct smsc47m1_data), GFP_KERNEL))) {
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data = kzalloc(sizeof(struct smsc47m1_data), GFP_KERNEL);
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if (!data) {
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err = -ENOMEM;
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goto error_release;
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}
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@ -668,8 +706,10 @@ static int __init smsc47m1_probe(struct platform_device *pdev)
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mutex_init(&data->update_lock);
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platform_set_drvdata(pdev, data);
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/* If no function is properly configured, there's no point in
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actually registering the chip. */
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/*
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* If no function is properly configured, there's no point in
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* actually registering the chip.
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*/
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pwm1 = (smsc47m1_read_value(data, SMSC47M1_REG_PPIN(0)) & 0x05)
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== 0x04;
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pwm2 = (smsc47m1_read_value(data, SMSC47M1_REG_PPIN(1)) & 0x05)
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@ -697,12 +737,14 @@ static int __init smsc47m1_probe(struct platform_device *pdev)
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goto error_free;
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}
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/* Some values (fan min, clock dividers, pwm registers) may be
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needed before any update is triggered, so we better read them
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at least once here. We don't usually do it that way, but in
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this particular case, manually reading 5 registers out of 8
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doesn't make much sense and we're better using the existing
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function. */
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/*
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* Some values (fan min, clock dividers, pwm registers) may be
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* needed before any update is triggered, so we better read them
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* at least once here. We don't usually do it that way, but in
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* this particular case, manually reading 5 registers out of 8
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* doesn't make much sense and we're better using the existing
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* function.
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*/
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smsc47m1_update_device(dev, 1);
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/* Register sysfs hooks */
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