[PATCH] [media] atmel-isc: set the format on the first open

[Songjun Wu]

Set the current format on the first open.

Signed-off-by: Songjun Wu <songjun...@microchip.com>
---

 drivers/media/platform/atmel/atmel-isc.c | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/media/platform/atmel/atmel-isc.c 
b/drivers/media/platform/atmel/atmel-isc.c
index db6773d..ed8050d 100644
--- a/drivers/media/platform/atmel/atmel-isc.c
+++ b/drivers/media/platform/atmel/atmel-isc.c
@@ -924,10 +924,16 @@ static int isc_open(struct file *file)
                goto unlock;
 
        ret = v4l2_subdev_call(sd, core, s_power, 1);
-       if (ret < 0 && ret != -ENOIOCTLCMD)
+       if (ret < 0 && ret != -ENOIOCTLCMD) {
                v4l2_fh_release(file);
-       else
-               ret = 0;
+               goto unlock;
+       }
+
+       ret = isc_set_fmt(isc, &isc->fmt);
+       if (ret) {
+               v4l2_subdev_call(sd, core, s_power, 0);
+               v4l2_fh_release(file);
+       }
 
 unlock:
        mutex_unlock(&isc->lock);
@@ -1118,8 +1124,16 @@ static int isc_set_default_fmt(struct isc_device *isc)
                        .pixelformat    = isc->user_formats[0]->fourcc,
                },
        };
+       int ret;
 
-       return isc_set_fmt(isc, &f);
+       ret = isc_try_fmt(isc, &f, NULL);
+       if (ret)
+               return ret;
+
+       isc->current_fmt = isc->user_formats[0];
+       isc->fmt = f;
+
+       return 0;
 }
 
 static int isc_async_complete(struct v4l2_async_notifier *notifier)
@@ -1172,20 +1186,12 @@ static int isc_async_complete(struct 
v4l2_async_notifier *notifier)
                return ret;
        }
 
-       ret = v4l2_subdev_call(sd_entity->sd, core, s_power, 1);
-       if (ret < 0 && ret != -ENOIOCTLCMD)
-               return ret;
-
        ret = isc_set_default_fmt(isc);
        if (ret) {
                v4l2_err(&isc->v4l2_dev, "Could not set default format\n");
                return ret;
        }
 
-       ret = v4l2_subdev_call(sd_entity->sd, core, s_power, 0);
-       if (ret < 0 && ret != -ENOIOCTLCMD)
-               return ret;
-
        /* Register video device */
        strlcpy(vdev->name, ATMEL_ISC_NAME, sizeof(vdev->name));
        vdev->release           = video_device_release_empty;
-- 
2.7.4