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[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>
This commit is contained in:
Ivo van Doorn 2007-05-14 23:06:01 +02:00 committed by Jeff Garzik
parent 9467d64b0e
commit 4b914dc049
1 changed files with 12 additions and 0 deletions
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12
drivers/misc/eeprom_93cx6.c
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@ -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);
}