hwmon: (hwmon-vid) Trivial format multi-line comments per CodingStyle

/*

    hwmon-vid.c - VID/VRM/VRD voltage conversions

    Copyright (c) 2004 Rudolf Marek <r.marek@assembler.cz>

    Partly imported from i2c-vid.h of the lm_sensors project

    Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>

    With assistance from Trent Piepho <xyzzy@speakeasy.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.

 * hwmon-vid.c - VID/VRM/VRD voltage conversions

 *

 * Copyright (c) 2004 Rudolf Marek <r.marek@assembler.cz>

 *

 * Partly imported from i2c-vid.h of the lm_sensors project

 * Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>

 * With assistance from Trent Piepho <xyzzy@speakeasy.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.

 */

#include <linux/module.h>

#include <linux/hwmon-vid.h>

/*

    Common code for decoding VID pins.

    References:

    For VRM 8.4 to 9.1, "VRM x.y DC-DC Converter Design Guidelines",

    available at http://developer.intel.com/.

    For VRD 10.0 and up, "VRD x.y Design Guide",

    available at http://developer.intel.com/.

    AMD Opteron processors don't follow the Intel specifications.

    I'm going to "make up" 2.4 as the spec number for the Opterons.

    No good reason just a mnemonic for the 24x Opteron processor

    series.

    Opteron VID encoding is:

       00000  =  1.550 V

       00001  =  1.525 V

        . . . .

       11110  =  0.800 V

       11111  =  0.000 V (off)

    The 17 specification is in fact Intel Mobile Voltage Positioning -

    (IMVP-II). You can find more information in the datasheet of Max1718

    http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2452

    The 13 specification corresponds to the Intel Pentium M series. There

    doesn't seem to be any named specification for these. The conversion

    tables are detailed directly in the various Pentium M datasheets:

    http://www.intel.com/design/intarch/pentiumm/docs_pentiumm.htm

    The 14 specification corresponds to Intel Core series. There

    doesn't seem to be any named specification for these. The conversion

    tables are detailed directly in the various Pentium Core datasheets:

    http://www.intel.com/design/mobile/datashts/309221.htm

    The 110 (VRM 11) specification corresponds to Intel Conroe based series.

    http://www.intel.com/design/processor/applnots/313214.htm

 * Common code for decoding VID pins.

 *

 * References:

 *

 * For VRM 8.4 to 9.1, "VRM x.y DC-DC Converter Design Guidelines",

 * available at http://developer.intel.com/.

 *

 * For VRD 10.0 and up, "VRD x.y Design Guide",

 * available at http://developer.intel.com/.

 *

 * AMD Opteron processors don't follow the Intel specifications.

 * I'm going to "make up" 2.4 as the spec number for the Opterons.

 * No good reason just a mnemonic for the 24x Opteron processor

 * series.

 *

 * Opteron VID encoding is:

 *    00000  =  1.550 V

 *    00001  =  1.525 V

 *     . . . .

 *    11110  =  0.800 V

 *    11111  =  0.000 V (off)

 *

 * The 17 specification is in fact Intel Mobile Voltage Positioning -

 * (IMVP-II). You can find more information in the datasheet of Max1718

 * http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2452

 *

 * The 13 specification corresponds to the Intel Pentium M series. There

 * doesn't seem to be any named specification for these. The conversion

 * tables are detailed directly in the various Pentium M datasheets:

 * http://www.intel.com/design/intarch/pentiumm/docs_pentiumm.htm

 *

 * The 14 specification corresponds to Intel Core series. There

 * doesn't seem to be any named specification for these. The conversion

 * tables are detailed directly in the various Pentium Core datasheets:

 * http://www.intel.com/design/mobile/datashts/309221.htm

 *

 * The 110 (VRM 11) specification corresponds to Intel Conroe based series.

 * http://www.intel.com/design/processor/applnots/313214.htm

 */

/* vrm is the VRM/VRD document version multiplied by 10.

   val is the 4-bit or more VID code.

   Returned value is in mV to avoid floating point in the kernel.

   Some VID have some bits in uV scale, this is rounded to mV */

/*

 * vrm is the VRM/VRD document version multiplied by 10.

 * val is the 4-bit or more VID code.

 * Returned value is in mV to avoid floating point in the kernel.

 * Some VID have some bits in uV scale, this is rounded to mV.

 */

int vid_from_reg(int val, u8 vrm)

{

	int vid;

/*

    After this point is the code to automatically determine which

    VRM/VRD specification should be used depending on the CPU.

 * After this point is the code to automatically determine which

 * VRM/VRD specification should be used depending on the CPU.

 */

struct vrm_model {