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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-07-18 10:54:00 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-07-30 19:15:53 -0300
commit7bf6afbb6b528335290e73b74c7f9a8596ef5689 (patch)
tree0925e0817cae1d2ae3dd0a5248113c7bc08cd999 /drivers/media
parentf2730756ad9649762583cb013f31f636f88bbec0 (diff)
[media] tw9910: Don't access the device in the g_mbus_fmt operation
The g_mbus_fmt operation only needs to return the current mbus frame format and doesn't need to configure the hardware to do so. Fix it to avoid requiring the chip to be powered on when calling the operation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/tw9910.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index 8768efb8508a..9f53eacb66e3 100644
--- a/drivers/media/video/tw9910.c
+++ b/drivers/media/video/tw9910.c
@@ -699,11 +699,9 @@ static int tw9910_g_fmt(struct v4l2_subdev *sd,
struct tw9910_priv *priv = to_tw9910(client);
if (!priv->scale) {
- int ret;
- u32 width = 640, height = 480;
- ret = tw9910_set_frame(sd, &width, &height);
- if (ret < 0)
- return ret;
+ priv->scale = tw9910_select_norm(priv->norm, 640, 480);
+ if (!priv->scale)
+ return -EINVAL;
}
mf->width = priv->scale->width;