staging: comedi: drivers: cleanup cmd->flags use

Most of the comedi drivers that support async commands have some sort
of timer to control the acquisition timing. For these drivers, Step 4
of the (*do_cmdtest) operations calls a ns_to_timer() function that
converts the desired ns time of the command into a value used to set
the timer. These ns_to_timer() functions also typically pass the
cmd->flags in order to determine the desired rounding mode.

Some of the drivers mask the cmd->flags with TRIG_ROUND_MASK when
calling the ns_to_timer() functions. Move all the masking into the
ns_to_timer() functions and just pass the cmd->flags directly.

The cmd->flags member is an unsigned int, change the parameter type
in the the ns_to_timer() functions to match.

For aesthetics, rename the parameter in all the ns_to_timer()
functions to 'flags'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
index 4d5325345302..4c4b1f9c86a6 100644
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -171,7 +171,7 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev,
 	/* step 4: fix up any arguments */
 
 	arg = cmd->scan_begin_arg;
-	dt2814_ns_to_timer(&arg, cmd->flags & TRIG_ROUND_MASK);
+	dt2814_ns_to_timer(&arg, cmd->flags);
 	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 
 	if (err)
@@ -187,9 +187,7 @@ static int dt2814_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	int chan;
 	int trigvar;
 
-	trigvar =
-	    dt2814_ns_to_timer(&cmd->scan_begin_arg,
-			       cmd->flags & TRIG_ROUND_MASK);
+	trigvar = dt2814_ns_to_timer(&cmd->scan_begin_arg, cmd->flags);
 
 	chan = CR_CHAN(cmd->chanlist[0]);