From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>
Both synchronous and asynchronous mt9p031 subdevice probing
is supported by this patch.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
---
drivers/media/i2c/mt9p031.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c
index af5a09d..9df4e2f 100644
--- a/drivers/media/i2c/mt9p031.c
+++ b/drivers/media/i2c/mt9p031.c
@@ -28,6 +28,7 @@
#include <linux/videodev2.h>
#include <media/mt9p031.h>
+#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
@@ -1145,6 +1146,10 @@ static int mt9p031_probe(struct i2c_client *client,
}
ret = mt9p031_clk_setup(mt9p031);
+ if (ret)
+ goto done;
+
+ ret = v4l2_async_register_subdev(&mt9p031->subdev);
done:
if (ret < 0) {
@@ -1162,7 +1167,7 @@ static int mt9p031_remove(struct i2c_client *client)
struct mt9p031 *mt9p031 = to_mt9p031(subdev);
v4l2_ctrl_handler_free(&mt9p031->ctrls);
- v4l2_device_unregister_subdev(subdev);
+ v4l2_async_unregister_subdev(subdev);
media_entity_cleanup(&subdev->entity);
mutex_destroy(&mt9p031->power_lock);
--
1.9.1
--
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