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SubjectRe: [PATCH v6 05/12] media: imx-csi: Input connections to CSI should be optional
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On 1/9/19 3:13 AM, Philipp Zabel wrote:
> On Tue, 2019-01-08 at 16:15 -0800, Steve Longerbeam wrote:
>> Some imx platforms do not have fwnode connections to all CSI input
>> ports, and should not be treated as an error. This includes the
>> imx6q SabreAuto, which has no connections to ipu1_csi1 and ipu2_csi0.
>> Return -ENOTCONN in imx_csi_parse_endpoint() so that v4l2-fwnode
>> endpoint parsing will not treat an unconnected endpoint as an error.
>>
>> Fixes: c893500a16baf ("media: imx: csi: Register a subdev notifier")
>>
>> Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
>> ---
>> drivers/staging/media/imx/imx-media-csi.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
>> index e3a4f39dbf73..b276672cae1d 100644
>> --- a/drivers/staging/media/imx/imx-media-csi.c
>> +++ b/drivers/staging/media/imx/imx-media-csi.c
>> @@ -1815,7 +1815,7 @@ static int imx_csi_parse_endpoint(struct device *dev,
>> struct v4l2_fwnode_endpoint *vep,
>> struct v4l2_async_subdev *asd)
>> {
>> - return fwnode_device_is_available(asd->match.fwnode) ? 0 : -EINVAL;
>> + return fwnode_device_is_available(asd->match.fwnode) ? 0 : -ENOTCONN;
>> }
>>
>> static int imx_csi_async_register(struct csi_priv *priv)
> Is this something that should be applied as a fix, separately from this
> series?

Yes. I'll submit it separately and send a v7 of this series without it.

Steve


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