drivers: staging: media: omap4iss: Use BIT macro instead of left shifting

There is a BIT(nr) macro available in Linux Kernel,
which does the same thing.

Example:  1 << 7  is same as BIT(7)

Signed-off-by: Moses Christopher Bollavarapu <mosescb.dev@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/staging/media/omap4iss/iss_video.h b/drivers/staging/media/omap4iss/iss_video.h
index ca2d5ed..19668d2 100644 (file)
--- a/drivers/staging/media/omap4iss/iss_video.h
+++ b/drivers/staging/media/omap4iss/iss_video.h
@@ -53,19 +53,19 @@ enum iss_pipeline_stream_state {
 
 enum iss_pipeline_state {
        /* The stream has been started on the input video node. */
-       ISS_PIPELINE_STREAM_INPUT = 1,
+       ISS_PIPELINE_STREAM_INPUT = BIT(0),
        /* The stream has been started on the output video node. */
-       ISS_PIPELINE_STREAM_OUTPUT = (1 << 1),
+       ISS_PIPELINE_STREAM_OUTPUT = BIT(1),
        /* At least one buffer is queued on the input video node. */
-       ISS_PIPELINE_QUEUE_INPUT = (1 << 2),
+       ISS_PIPELINE_QUEUE_INPUT = BIT(2),
        /* At least one buffer is queued on the output video node. */
-       ISS_PIPELINE_QUEUE_OUTPUT = (1 << 3),
+       ISS_PIPELINE_QUEUE_OUTPUT = BIT(3),
        /* The input entity is idle, ready to be started. */
-       ISS_PIPELINE_IDLE_INPUT = (1 << 4),
+       ISS_PIPELINE_IDLE_INPUT = BIT(4),
        /* The output entity is idle, ready to be started. */
-       ISS_PIPELINE_IDLE_OUTPUT = (1 << 5),
+       ISS_PIPELINE_IDLE_OUTPUT = BIT(5),
        /* The pipeline is currently streaming. */
-       ISS_PIPELINE_STREAM = (1 << 6),
+       ISS_PIPELINE_STREAM = BIT(6),
 };
 
 /*
@@ -126,9 +126,9 @@ struct iss_buffer {
 
 enum iss_video_dmaqueue_flags {
        /* Set if DMA queue becomes empty when ISS_PIPELINE_STREAM_CONTINUOUS */
-       ISS_VIDEO_DMAQUEUE_UNDERRUN = (1 << 0),
+       ISS_VIDEO_DMAQUEUE_UNDERRUN = BIT(0),
        /* Set when queuing buffer to an empty DMA queue */
-       ISS_VIDEO_DMAQUEUE_QUEUED = (1 << 1),
+       ISS_VIDEO_DMAQUEUE_QUEUED = BIT(1),
 };
 
 #define iss_video_dmaqueue_flags_clr(video)    \