From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>
Both synchronous and asynchronous tvp514x subdevice probing is supported by
this patch.
Signed-off-by: Prabhakar Lad <prabhakar.csengg@xxxxxxxxx>
Cc: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Hans Verkuil <hverkuil@xxxxxxxxx>
Cc: Sakari Ailus <sakari.ailus@xxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
---
drivers/media/i2c/tvp514x.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index 864eb14..d090caf 100644
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -36,6 +36,7 @@
#include <linux/module.h>
#include <linux/v4l2-mediabus.h>
+#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-common.h>
#include <media/v4l2-mediabus.h>
@@ -1148,9 +1149,9 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* Register with V4L2 layer as slave device */
sd = &decoder->sd;
v4l2_i2c_subdev_init(sd, client, &tvp514x_ops);
- strlcpy(sd->name, TVP514X_MODULE_NAME, sizeof(sd->name));
#if defined(CONFIG_MEDIA_CONTROLLER)
+ strlcpy(sd->name, TVP514X_MODULE_NAME, sizeof(sd->name));
decoder->pad.flags = MEDIA_PAD_FL_SOURCE;
decoder->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
decoder->sd.entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER;
@@ -1176,16 +1177,22 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
sd->ctrl_handler = &decoder->hdl;
if (decoder->hdl.error) {
ret = decoder->hdl.error;
-
- v4l2_ctrl_handler_free(&decoder->hdl);
- return ret;
+ goto done;
}
v4l2_ctrl_handler_setup(&decoder->hdl);
- v4l2_info(sd, "%s decoder driver registered !!\n", sd->name);
-
- return 0;
+ ret = v4l2_async_register_subdev(&decoder->sd);
+ if (!ret)
+ v4l2_info(sd, "%s decoder driver registered !!\n", sd->name);
+done:
+ if (ret < 0) {
+ v4l2_ctrl_handler_free(&decoder->hdl);
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ media_entity_cleanup(&decoder->sd.entity);
+#endif
+ }
+ return ret;
}
/**
@@ -1200,6 +1207,7 @@ static int tvp514x_remove(struct i2c_client *client)
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct tvp514x_decoder *decoder = to_decoder(sd);
+ v4l2_async_unregister_subdev(&decoder->sd);
v4l2_device_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&decoder->sd.entity);
--
1.7.9.5
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