Commit f83d87a0 authored by Lee Jones's avatar Lee Jones Committed by Jonathan Cameron
Browse files

iio: adc: ti_am335x_adc: Remove a couple of unused 'read' variables 



Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/ti_am335x_adc.c: In function ‘tiadc_buffer_preenable’:
 drivers/iio/adc/ti_am335x_adc.c:297:21: warning: variable ‘read’ set but not used [-Wunused-but-set-variable]
 297 | int i, fifo1count, read;
 | ^~~~
 drivers/iio/adc/ti_am335x_adc.c: In function ‘tiadc_buffer_predisable’:
 drivers/iio/adc/ti_am335x_adc.c:346:21: warning: variable ‘read’ set but not used [-Wunused-but-set-variable]
 346 | int fifo1count, i, read;
 | ^~~~

Cc: Rachna Patil <rachna@ti.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 0d674449

drivers/iio/adc/ti_am335x_adc.c

+4 −4
Original line number Diff line number Diff line
@@ -294,7 +294,7 @@ static int tiadc_start_dma(struct iio_dev *indio_dev) 
static int tiadc_buffer_preenable(struct iio_dev *indio_dev)

{

	struct tiadc_device *adc_dev = iio_priv(indio_dev);

	int i, fifo1count, read;

	int i, fifo1count;



	tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |

				IRQENB_FIFO1OVRRUN |
@@ -303,7 +303,7 @@ static int tiadc_buffer_preenable(struct iio_dev *indio_dev) 
	/* Flush FIFO. Needed in corner cases in simultaneous tsc/adc use */

	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);

	for (i = 0; i < fifo1count; i++)

		read = tiadc_readl(adc_dev, REG_FIFO1);

		tiadc_readl(adc_dev, REG_FIFO1);



	return 0;

}
@@ -343,7 +343,7 @@ static int tiadc_buffer_predisable(struct iio_dev *indio_dev) 
{

	struct tiadc_device *adc_dev = iio_priv(indio_dev);

	struct tiadc_dma *dma = &adc_dev->dma;

	int fifo1count, i, read;

	int fifo1count, i;



	tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |

				IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW));
@@ -358,7 +358,7 @@ static int tiadc_buffer_predisable(struct iio_dev *indio_dev) 
	/* Flush FIFO of leftover data in the time it takes to disable adc */

	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);

	for (i = 0; i < fifo1count; i++)

		read = tiadc_readl(adc_dev, REG_FIFO1);

		tiadc_readl(adc_dev, REG_FIFO1);



	return 0;

}