From ee17608d6aa04a86e253a9130d6c6d00892f132b Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 26 Dec 2012 13:13:46 -0300 Subject: [PATCH] [media] imx074: support asynchronous probing Both synchronous and asynchronous imx074 subdevice probing is supported by this patch. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/soc_camera/imx074.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/media/i2c/soc_camera/imx074.c b/drivers/media/i2c/soc_camera/imx074.c index 2d8367891801..1d384a371b41 100644 --- a/drivers/media/i2c/soc_camera/imx074.c +++ b/drivers/media/i2c/soc_camera/imx074.c @@ -18,6 +18,7 @@ #include #include +#include #include #include @@ -437,13 +438,24 @@ static int imx074_probe(struct i2c_client *client, priv->fmt = &imx074_colour_fmts[0]; priv->clk = v4l2_clk_get(&client->dev, "mclk"); - if (IS_ERR(priv->clk)) - return PTR_ERR(priv->clk); + if (IS_ERR(priv->clk)) { + dev_info(&client->dev, "Error %ld getting clock\n", PTR_ERR(priv->clk)); + return -EPROBE_DEFER; + } + + ret = soc_camera_power_init(&client->dev, ssdd); + if (ret < 0) + goto epwrinit; ret = imx074_video_probe(client); if (ret < 0) - v4l2_clk_put(priv->clk); + goto eprobe; + return v4l2_async_register_subdev(&priv->subdev); + +epwrinit: +eprobe: + v4l2_clk_put(priv->clk); return ret; } @@ -452,7 +464,9 @@ static int imx074_remove(struct i2c_client *client) struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); struct imx074 *priv = to_imx074(client); + v4l2_async_unregister_subdev(&priv->subdev); v4l2_clk_put(priv->clk); + if (ssdd->free_bus) ssdd->free_bus(ssdd);