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authorJohn W. Linville <linville@tuxdriver.com>2007-06-11 21:37:46 -0400
committerJeff Garzik <jeff@garzik.org>2007-07-08 22:16:36 -0400
commit7e9400f178d291b2208c4ed9aac0f425c1364000 (patch)
treefa3b73bc5367b059cd0813d43461dcb476494d86 /drivers/misc
parent605bebe23bf6ac66c0a717e663a7baa2f981294d (diff)
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[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.c6
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)