hwmon: (w83627ehf) Fix multi-line comments
Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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@ -1,50 +1,49 @@
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/*
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w83627ehf - Driver for the hardware monitoring functionality of
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the Winbond W83627EHF Super-I/O chip
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Copyright (C) 2005-2011 Jean Delvare <khali@linux-fr.org>
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Copyright (C) 2006 Yuan Mu (Winbond),
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Rudolf Marek <r.marek@assembler.cz>
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David Hubbard <david.c.hubbard@gmail.com>
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Daniel J Blueman <daniel.blueman@gmail.com>
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Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
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Shamelessly ripped from the w83627hf driver
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Copyright (C) 2003 Mark Studebaker
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Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help
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in testing and debugging this driver.
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This driver also supports the W83627EHG, which is the lead-free
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version of the W83627EHF.
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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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Supports the following chips:
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Chip #vin #fan #pwm #temp chip IDs man ID
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w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
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0x8860 0xa1
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w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
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w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
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w83627uhg 8 2 2 3 0xa230 0xc1 0x5ca3
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w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
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w83667hg-b 9 5 3 4 0xb350 0xc1 0x5ca3
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nct6775f 9 4 3 9 0xb470 0xc1 0x5ca3
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nct6776f 9 5 3 9 0xC330 0xc1 0x5ca3
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*/
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* w83627ehf - Driver for the hardware monitoring functionality of
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* the Winbond W83627EHF Super-I/O chip
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* Copyright (C) 2005-2011 Jean Delvare <khali@linux-fr.org>
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* Copyright (C) 2006 Yuan Mu (Winbond),
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* Rudolf Marek <r.marek@assembler.cz>
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* David Hubbard <david.c.hubbard@gmail.com>
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* Daniel J Blueman <daniel.blueman@gmail.com>
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* Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
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*
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* Shamelessly ripped from the w83627hf driver
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* Copyright (C) 2003 Mark Studebaker
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*
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* Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help
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* in testing and debugging this driver.
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*
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* This driver also supports the W83627EHG, which is the lead-free
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* version of the W83627EHF.
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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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* Supports the following chips:
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*
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* Chip #vin #fan #pwm #temp chip IDs man ID
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* w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
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* 0x8860 0xa1
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* w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
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* w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
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* w83627uhg 8 2 2 3 0xa230 0xc1 0x5ca3
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* w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
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* w83667hg-b 9 5 3 4 0xb350 0xc1 0x5ca3
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* nct6775f 9 4 3 9 0xb470 0xc1 0x5ca3
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* nct6776f 9 5 3 9 0xC330 0xc1 0x5ca3
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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@ -164,11 +163,13 @@ superio_exit(int ioreg)
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#define W83627EHF_REG_BANK 0x4E
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#define W83627EHF_REG_CONFIG 0x40
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/* Not currently used:
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/*
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* Not currently used:
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* REG_MAN_ID has the value 0x5ca3 for all supported chips.
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* REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
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* REG_MAN_ID is at port 0x4f
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* REG_CHIP_ID is at port 0x58 */
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* REG_CHIP_ID is at port 0x58
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*/
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static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
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static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
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@ -393,8 +394,10 @@ div_from_reg(u8 reg)
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return 1 << reg;
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}
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/* Some of the voltage inputs have internal scaling, the tables below
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* contain 8 (the ADC LSB in mV) * scaling factor * 100 */
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/*
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* Some of the voltage inputs have internal scaling, the tables below
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* contain 8 (the ADC LSB in mV) * scaling factor * 100
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*/
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static const u16 scale_in_common[10] = {
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800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800
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};
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@ -470,12 +473,13 @@ struct w83627ehf_data {
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u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
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u8 pwm_enable[4]; /* 1->manual
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2->thermal cruise mode (also called SmartFan I)
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3->fan speed cruise mode
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4->variable thermal cruise (also called
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SmartFan III)
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5->enhanced variable thermal cruise (also called
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SmartFan IV) */
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* 2->thermal cruise mode (also called SmartFan I)
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* 3->fan speed cruise mode
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* 4->variable thermal cruise (also called
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* SmartFan III)
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* 5->enhanced variable thermal cruise (also called
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* SmartFan IV)
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*/
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u8 pwm_enable_orig[4]; /* original value of pwm_enable */
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u8 pwm_num; /* number of pwm */
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u8 pwm[4];
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@ -816,9 +820,11 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
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data->fan_min[i] = w83627ehf_read_value(data,
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data->REG_FAN_MIN[i]);
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/* If we failed to measure the fan speed and clock
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divider can be increased, let's try that for next
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time */
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/*
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* If we failed to measure the fan speed and clock
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* divider can be increased, let's try that for next
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* time
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*/
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if (data->has_fan_div
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&& (reg >= 0xff || (sio_data->kind == nct6775
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&& reg == 0x00))
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@ -1081,25 +1087,31 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
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new_div = data->fan_div[nr]; /* No change */
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dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
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} else if ((reg = 1350000U / val) >= 128 * 255) {
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/* Speed below this value cannot possibly be represented,
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even with the highest divider (128) */
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/*
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* Speed below this value cannot possibly be represented,
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* even with the highest divider (128)
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*/
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data->fan_min[nr] = 254;
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new_div = 7; /* 128 == (1 << 7) */
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dev_warn(dev, "fan%u low limit %lu below minimum %u, set to "
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"minimum\n", nr + 1, val,
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data->fan_from_reg_min(254, 7));
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} else if (!reg) {
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/* Speed above this value cannot possibly be represented,
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even with the lowest divider (1) */
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/*
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* Speed above this value cannot possibly be represented,
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* even with the lowest divider (1)
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*/
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data->fan_min[nr] = 1;
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new_div = 0; /* 1 == (1 << 0) */
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dev_warn(dev, "fan%u low limit %lu above maximum %u, set to "
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"maximum\n", nr + 1, val,
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data->fan_from_reg_min(1, 0));
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} else {
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/* Automatically pick the best divider, i.e. the one such
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that the min limit will correspond to a register value
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in the 96..192 range */
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/*
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* Automatically pick the best divider, i.e. the one such
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* that the min limit will correspond to a register value
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* in the 96..192 range
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*/
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new_div = 0;
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while (reg > 192 && new_div < 7) {
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reg >>= 1;
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@ -1108,8 +1120,10 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
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data->fan_min[nr] = reg;
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}
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/* Write both the fan clock divider (if it changed) and the new
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fan min (unconditionally) */
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/*
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* Write both the fan clock divider (if it changed) and the new
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* fan min (unconditionally)
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*/
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if (new_div != data->fan_div[nr]) {
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dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
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nr + 1, div_from_reg(data->fan_div[nr]),
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@ -1736,8 +1750,10 @@ static struct sensor_device_attribute_2 sda_caseopen[] = {
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static void w83627ehf_device_remove_files(struct device *dev)
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{
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/* some entries in the following arrays may not have been used in
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* device_create_file(), but device_remove_file() will ignore them */
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/*
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* some entries in the following arrays may not have been used in
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* device_create_file(), but device_remove_file() will ignore them
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*/
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int i;
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struct w83627ehf_data *data = dev_get_drvdata(dev);
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@ -2279,9 +2295,11 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
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/* Read VID value */
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if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b ||
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sio_data->kind == nct6775 || sio_data->kind == nct6776) {
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/* W83667HG has different pins for VID input and output, so
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we can get the VID input values directly at logical device D
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0xe3. */
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/*
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* W83667HG has different pins for VID input and output, so
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* we can get the VID input values directly at logical device D
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* 0xe3.
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*/
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superio_select(sio_data->sioreg, W83667HG_LD_VID);
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data->vid = superio_inb(sio_data->sioreg, 0xe3);
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err = device_create_file(dev, &dev_attr_cpu0_vid);
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@ -2290,11 +2308,13 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
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} else if (sio_data->kind != w83627uhg) {
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superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
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if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
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/* Set VID input sensibility if needed. In theory the
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BIOS should have set it, but in practice it's not
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always the case. We only do it for the W83627EHF/EHG
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because the W83627DHG is more complex in this
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respect. */
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/*
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* Set VID input sensibility if needed. In theory the
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* BIOS should have set it, but in practice it's not
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* always the case. We only do it for the W83627EHF/EHG
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* because the W83627DHG is more complex in this
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* respect.
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*/
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if (sio_data->kind == w83627ehf) {
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en_vrm10 = superio_inb(sio_data->sioreg,
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SIO_REG_EN_VRM10);
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@ -2616,10 +2636,12 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
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return 0;
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}
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/* when Super-I/O functions move to a separate file, the Super-I/O
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/*
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* when Super-I/O functions move to a separate file, the Super-I/O
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* bus will manage the lifetime of the device and this module will only keep
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* track of the w83627ehf driver. But since we platform_device_alloc(), we
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* must keep track of the device */
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* must keep track of the device
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*/
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static struct platform_device *pdev;
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static int __init sensors_w83627ehf_init(void)
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@ -2629,11 +2651,13 @@ static int __init sensors_w83627ehf_init(void)
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struct resource res;
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struct w83627ehf_sio_data sio_data;
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/* initialize sio_data->kind and sio_data->sioreg.
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/*
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* initialize sio_data->kind and sio_data->sioreg.
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*
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* when Super-I/O functions move to a separate file, the Super-I/O
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* driver will probe 0x2e and 0x4e and auto-detect the presence of a
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* w83627ehf hardware monitor, and call probe() */
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* w83627ehf hardware monitor, and call probe()
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*/
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if (w83627ehf_find(0x2e, &address, &sio_data) &&
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w83627ehf_find(0x4e, &address, &sio_data))
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return -ENODEV;
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