linux-kernel - [PATCH 52/83] staging: comedi: rtd520: remove RtdDio0CtrlWrite macro

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Date:	Tue, 10 Jul 2012 17:08:29 -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 52/83] staging: comedi: rtd520: remove RtdDio0CtrlWrite 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 | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index b0c5f34..e7c550f 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -406,9 +406,6 @@ struct rtdPrivate {
 
 /* Macros to access registers */
 
-#define RtdDio0CtrlWrite(dev, v) \
-	writew((v) & 0xff, devpriv->las0+LAS0_DIO0_CTRL)
-
 /* Digital to Analog converter */
 /* Write one data value (sign + 12bit + marker bits) */
 /* Note: matches what DMA would put.  Actual value << 3 */
@@ -1686,7 +1683,7 @@ static int rtd_dio_insn_config(struct comedi_device *dev,
 	/* TODO support digital match interrupts and strobes */
 	devpriv->dioStatus = 0x01;	/* set direction */
 	writew(devpriv->dioStatus, devpriv->las0 + LAS0_DIO_STATUS);
-	RtdDio0CtrlWrite(dev, s->io_bits);	/* set direction 1 means Out */
+	writew(s->io_bits & 0xff, devpriv->las0 + LAS0_DIO0_CTRL);
 	devpriv->dioStatus = 0x00;	/* clear interrupts */
 	writew(devpriv->dioStatus, devpriv->las0 + LAS0_DIO_STATUS);
 
-- 
1.7.11

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