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| author | John W. Linville <linville@tuxdriver.com> | 2007-06-11 21:37:46 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-07-08 22:16:36 -0400 |
| commit | 7e9400f178d291b2208c4ed9aac0f425c1364000 (patch) | |
| tree | fa3b73bc5367b059cd0813d43461dcb476494d86 /drivers/misc | |
| parent | 605bebe23bf6ac66c0a717e663a7baa2f981294d (diff) | |
| download | op-kernel-dev-7e9400f178d291b2208c4ed9aac0f425c1364000.zip op-kernel-dev-7e9400f178d291b2208c4ed9aac0f425c1364000.tar.gz | |
[PATCH] eeprom_93cx6: shorten pulse timing to match spec
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>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/eeprom_93cx6.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c index 0d6d742..ac515b0 100644 --- a/drivers/misc/eeprom_93cx6.c +++ b/drivers/misc/eeprom_93cx6.c @@ -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) |
