linux-kernel - [PATCH 17/83] staging: comedi: rtd520: remove RtdAdcStart macro

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Message-ID: <201207101649.28576.hartleys@visionengravers.com>
Date:	Tue, 10 Jul 2012 16:49:28 -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 17/83] staging: comedi: rtd520: remove RtdAdcStart 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
'writel'. 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 | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 1face98..b76bb75 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -406,10 +406,6 @@ struct rtdPrivate {
 
 /* Macros to access registers */
 
-/* Start single ADC conversion */
-#define RtdAdcStart(dev) \
-	writew(0, devpriv->las0+LAS0_ADC)
-
 /* Read one ADC data value (12bit (with sign extend) as 16bit) */
 /* Note: matches what DMA would get.  Actual value >> 3 */
 #define RtdAdcFifoGet(dev) \
@@ -771,7 +767,7 @@ static int rtd520_probe_fifo_depth(struct comedi_device *dev)
 	for (i = 0; i < limit; ++i) {
 		unsigned fifo_status;
 		/* trigger conversion */
-		RtdAdcStart(dev);
+		writew(0, devpriv->las0 + LAS0_ADC);
 		udelay(1);
 		fifo_status = RtdFifoStatus(dev);
 		if ((fifo_status & FS_ADC_HEMPTY) == 0) {
@@ -822,7 +818,7 @@ static int rtd_ai_rinsn(struct comedi_device *dev,
 	for (n = 0; n < insn->n; n++) {
 		s16 d;
 		/* trigger conversion */
-		RtdAdcStart(dev);
+		writew(0, devpriv->las0 + LAS0_ADC);
 
 		for (ii = 0; ii < RTD_ADC_TIMEOUT; ++ii) {
 			stat = RtdFifoStatus(dev);
-- 
1.7.11

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