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authorDaniel Vetter <daniel.vetter@ffwll.ch>2014-09-11 14:46:53 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-09-11 14:46:53 +0200
commit336879b1da97fffc097f77c6d6f818660f2826f0 (patch)
tree4ddb4d1c5d2b67fb096c72e41d2a03b01a605041 /drivers/iio/adc/ad7298.c
parent3d3cbd84300e7be1e53083cac0f6f9c12978ecb4 (diff)
parentfdcaa1dbb7c6ed419b10fb8cdb5001ab0a00538f (diff)
Merge remote-tracking branch 'airlied/drm-next' into topic/vblank-rework
Dave asked me to do the backmerge before sending him the revised pull request, so here we go. Nothing fancy in the conflicts, just a few things changed right next to each another. Conflicts: drivers/gpu/drm/drm_irq.c Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/iio/adc/ad7298.c')
-rw-r--r--drivers/iio/adc/ad7298.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c
index 2a3b65c74af..4a8c0a2f49b 100644
--- a/drivers/iio/adc/ad7298.c
+++ b/drivers/iio/adc/ad7298.c
@@ -16,6 +16,7 @@
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/interrupt.h>
+#include <linux/bitops.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
@@ -25,23 +26,19 @@
#include <linux/platform_data/ad7298.h>
-#define AD7298_WRITE (1 << 15) /* write to the control register */
-#define AD7298_REPEAT (1 << 14) /* repeated conversion enable */
-#define AD7298_CH(x) (1 << (13 - (x))) /* channel select */
-#define AD7298_TSENSE (1 << 5) /* temperature conversion enable */
-#define AD7298_EXTREF (1 << 2) /* external reference enable */
-#define AD7298_TAVG (1 << 1) /* temperature sensor averaging enable */
-#define AD7298_PDD (1 << 0) /* partial power down enable */
+#define AD7298_WRITE BIT(15) /* write to the control register */
+#define AD7298_REPEAT BIT(14) /* repeated conversion enable */
+#define AD7298_CH(x) BIT(13 - (x)) /* channel select */
+#define AD7298_TSENSE BIT(5) /* temperature conversion enable */
+#define AD7298_EXTREF BIT(2) /* external reference enable */
+#define AD7298_TAVG BIT(1) /* temperature sensor averaging enable */
+#define AD7298_PDD BIT(0) /* partial power down enable */
#define AD7298_MAX_CHAN 8
-#define AD7298_BITS 12
-#define AD7298_STORAGE_BITS 16
#define AD7298_INTREF_mV 2500
#define AD7298_CH_TEMP 9
-#define RES_MASK(bits) ((1 << (bits)) - 1)
-
struct ad7298_state {
struct spi_device *spi;
struct regulator *reg;
@@ -257,7 +254,7 @@ static int ad7298_read_raw(struct iio_dev *indio_dev,
return ret;
if (chan->address != AD7298_CH_TEMP)
- *val = ret & RES_MASK(AD7298_BITS);
+ *val = ret & GENMASK(chan->scan_type.realbits - 1, 0);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE: