masked flags in divisor functions, so argument doesn't need to be masked before passi...

diff --git a/comedi/drivers/8253.h b/comedi/drivers/8253.h
index 66975036230dab152fc9f6e50cf083e4503ac4dc..374f74dfa658ad22fa588dde22712eda25f13a73 100644 (file)
--- a/comedi/drivers/8253.h
+++ b/comedi/drivers/8253.h
@@ -24,6 +24,8 @@
 #ifndef _8253_H
 #define _8253_H
 
+#include <linux/comedi.h>
+
 #define i8253_cascade_ns_to_timer i8253_cascade_ns_to_timer_2div
 
 static inline void i8253_cascade_ns_to_timer_2div_old(int i8253_osc_base, unsigned int *d1, unsigned int *d2, unsigned int *nanosec, int round_mode)
@@ -80,6 +82,7 @@ static inline void i8253_cascade_ns_to_timer_power(int i8253_osc_base, unsigned
 
        for (div1 = 2; div1 <= (1 << 16); div1 <<= 1) {
                base = i8253_osc_base * div1;
+               round_mode &= TRIG_ROUND_MASK;
                switch (round_mode) {
                case TRIG_ROUND_NEAREST:
                default:
@@ -161,6 +164,7 @@ static inline void i8253_cascade_ns_to_timer_2div(int i8253_osc_base,
                }
        }
 
+       round_mode &= TRIG_ROUND_MASK;
        switch (round_mode) {
        case TRIG_ROUND_NEAREST:
        default:
@@ -190,7 +194,7 @@ static inline void i8253_cascade_ns_to_timer_2div(int i8253_osc_base,
        return;
 }
 
-/* Programs 8254 counter chip.  I don't know if this works for 8253.
+/* Programs 8254 counter chip.  It should also work for the 8253.
  * base_address is the lowest io address for the chip (the address of counter 0).
  * counter_number is the counter you want to load (0,1 or 2)
  * count is the number to load into the counter.