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[PATCH] eeprom_93cx6: shorten pulse timing to match spec
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93cx6 datasheet available here:

        http://ww1.microchip.com/downloads/en/DeviceDoc/21749F.pdf

Figure 1-1 and Table 1-2 on pages 4-5 indicate that both Clock High
Time and Clock Low Time have largest minimum times of 450ns.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
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John W. Linville authored and Jeff Garzik committed Jul 9, 2007
1 parent 605bebe commit 7e9400f
Showing 1 changed file with 3 additions and 3 deletions.
6 changes: 3 additions & 3 deletions drivers/misc/eeprom_93cx6.c
Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,10 @@ static inline void eeprom_93cx6_pulse_high(struct eeprom_93cx6 *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.
* According to the specifications the "maximum minimum"
* time should be 450ns.
*/
udelay(1);
ndelay(450);
}

static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom)
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