[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>

diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c
index 0d6d742..ac515b0 100644 (file)
--- 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)