decode-dimms: Documentation update for DDR4

The EEPROMs used to store SPD data on DDR4 SDRAM modules have their
own kernel driver: ee1004.

CHANGES

@@ -7,6 +7,7 @@ master
                 Decode size and timings of DDR4
                 Decode misc parameters of DDR4
                 Decode physical characteristics of DDR4
+                Documentation update for DDR4
 
 4.0 (2017-10-30)
   tools: Fix build with recent compilers (gcc 4.6+)

eeprom/decode-dimms

@@ -5,7 +5,7 @@
 # Copyright 1998, 1999 Philip Edelbrock <phil@netroedge.com>
 # modified by Christian Zuckschwerdt <zany@triq.net>
 # modified by Burkart Lingner <burkart@bollchen.de>
-# Copyright (C) 2005-2013  Jean Delvare <jdelvare@suse.de>
+# Copyright (C) 2005-2017  Jean Delvare <jdelvare@suse.de>
 #
 #    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
@@ -2410,7 +2410,9 @@ sub get_dimm_list
 	my (@dirs, $dir, $opened, $file, @files);
 
 	if ($use_sysfs) {
-		@dirs = ('/sys/bus/i2c/drivers/eeprom', '/sys/bus/i2c/drivers/at24');
+		@dirs = ('/sys/bus/i2c/drivers/eeprom',
+			 '/sys/bus/i2c/drivers/at24',
+			 '/sys/bus/i2c/drivers/ee1004');	# DDR4
 	} else {
 		@dirs = ('/proc/sys/dev/sensors');
 	}
@@ -2428,7 +2430,9 @@ sub get_dimm_list
 				# or spd (driver at24)
 				my $attr = sysfs_device_attribute("$dir/$file", "name");
 				next unless defined $attr &&
-					    ($attr eq "eeprom" || $attr eq "spd");
+					    ($attr eq "eeprom" ||
+					     $attr eq "spd" ||
+					     $attr eq "ee1004");	# DDR4
 			} else {
 				next unless $file =~ /^eeprom-/;
 			}

eeprom/decode-dimms.1

@@ -1,6 +1,7 @@
 .\"
 .\"  decode-dimms.1 - manpage for the i2c-tools/decode-dimms utility
 .\"  Copyright (C) 2013  Jaromir Capik
+.\"  Copyright (C) 2017  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
@@ -16,7 +17,7 @@
 .\"  with this program; if not, write to the Free Software Foundation, Inc.,
 .\"  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 .\"
-.TH decode-dimms 1 "Oct 2013" "i2c-tools" "User Commands"
+.TH decode-dimms 1 "Nov 2017" "i2c-tools" "User Commands"
 .SH NAME
 decode-dimms \- decode the information found in memory module SPD EEPROMs
 .SH SYNOPSIS
@@ -31,8 +32,8 @@ The purpose of the
 .B decode-dimms
 tool is to decode the information found in memory module SPD EEPROMs.
 The SPD data is read either from the running system or dump files.
-In the former case, the tool requires either the eeprom kernel module
-or the at24 kernel module to be loaded.
+In the former case, the tool requires a kernel module to be loaded:
+eeprom, at24 or ee1004 (for DDR4 SDRAM.)
 .SH PARAMETERS
 .TP
 .B \-f, --format