+From: Ivo van Doorn <ivdoorn@gmail.com>
+Date: Mon, 14 May 2007 21:06:01 +0000 (+0200)
+Subject: [PATCH] eeprom_93cx6: Add comment for 1us delay after pulse
+X-Git-Tag: v2.6.23-rc1~1201^2~73
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=4b914dc0493edff19ff698a18198a173a14ba9d2
+
+[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>
+---
+
+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 @@ static inline void eeprom_93cx6_pulse_high(struct eeprom_93cx6 *eeprom)
+ {
+ 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 @@ static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom)
+ {
+ 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);
+ }
+
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