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@xxxxxxxxx>
---
diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c
index a948ddc..8c8b43f 100644
--- a/drivers/misc/eeprom_93cx6.c
+++ b/drivers/misc/eeprom_93cx6.c
@@ -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);
}
-
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