linux-kernel - [PATCH 53/83] staging: comedi: rtd520: remove RtdDacFifoPut macro

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Message-ID: <201207101708.59949.hartleys@visionengravers.com>
Date:	Tue, 10 Jul 2012 17:08:59 -0700
From:	H Hartley Sweeten <hartleys@...ionengravers.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
CC:	<devel@...verdev.osuosl.org>, <abbotti@....co.uk>,
	<gregkh@...uxfoundation.org>
Subject: [PATCH 53/83] staging: comedi: rtd520: remove RtdDacFifoPut macro

This macro uses the 'devpriv' macro which relies on a local variable
having a specific name. Plus it's just a wrapper around a simple
'writew'. Remove the macro.

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Ian Abbott <abbotti@....co.uk>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/staging/comedi/drivers/rtd520.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index e7c550f..8ba7877 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -406,13 +406,6 @@ struct rtdPrivate {
 
 /* Macros to access registers */
 
-/* Digital to Analog converter */
-/* Write one data value (sign + 12bit + marker bits) */
-/* Note: matches what DMA would put.  Actual value << 3 */
-#define RtdDacFifoPut(dev, n, v) \
-	writew((v), devpriv->las1 + (((n) == 0) ? LAS1_DAC1_FIFO : \
-				LAS1_DAC2_FIFO))
-
 /* Start single DAC conversion */
 #define RtdDacUpdate(dev, n) \
 	writew(0, devpriv->las0 + (((n) == 0) ? LAS0_DAC1 : LAS0_DAC2))
@@ -1577,7 +1570,8 @@ static int rtd_ao_winsn(struct comedi_device *dev,
 		     chan, range, data[i], val);
 
 		/* a typical programming sequence */
-		RtdDacFifoPut(dev, chan, val);	/* put the value in */
+		writew(val, devpriv->las1 +
+			((chan == 0) ? LAS1_DAC1_FIFO : LAS1_DAC2_FIFO));
 		RtdDacUpdate(dev, chan);	/* trigger the conversion */
 
 		devpriv->aoValue[chan] = data[i];	/* save for read back */
-- 
1.7.11

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