commit 4b914dc0493edff19ff698a18198a173a14ba9d2
author Ivo van Doorn <ivdoorn@gmail.com> Mon May 14 23:06:01 2007 +0200
committer Jeff Garzik <jeff@garzik.org> Sun Jul 08 22:16:36 2007 -0400
tree 9a1126599f664cea033b896ccea54acd37dc82af
parent 9467d64b0e88763914c01f71ddf591b166c4f526

[PATCH] eeprom_93cx6: Add comment for 1us delay after pulse

This will add a comment for the 1us delay which is taken
after the pulse has been switched. The 1us delay is based
on the specifications so that should be made clear.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/misc/eeprom_93cx6.c

diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c
index bfcb434..0d6d742 100644
--- a/drivers/misc/eeprom_93cx6.c
+++ b/drivers/misc/eeprom_93cx6.c
@@ -39,6 +39,12 @@
 {
 	eeprom->reg_data_clock = 1;
 	eeprom->register_write(eeprom);
+
+	/*
+	 * Add a short delay for the pulse to work.
+	 * According to the specifications the minimal time
+	 * should be 450ns so a 1us delay is sufficient.
+	 */
 	udelay(1);
 }
 
@@ -46,6 +52,12 @@
 {
 	eeprom->reg_data_clock = 0;
 	eeprom->register_write(eeprom);
+
+	/*
+	 * Add a short delay for the pulse to work.
+	 * According to the specifications the minimal time
+	 * should be 450ns so a 1us delay is sufficient.
+	 */
 	udelay(1);
 }