On 01/08/19 14:44, Hans Verkuil wrote:
> On 12/28/18 17:59, Ken Sloat wrote:
>> From: Ken Sloat <[email protected]>
>>
>> Update device tree binding documentation specifying how to
>> enable BT656 with CRC decoding.
>>
>> Signed-off-by: Ken Sloat <[email protected]>
>> ---
>> Documentation/devicetree/bindings/media/atmel-isc.txt | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/media/atmel-isc.txt
>> b/Documentation/devicetree/bindings/media/atmel-isc.txt
>> index bbe0e87c6188..e787edeea7da 100644
>> --- a/Documentation/devicetree/bindings/media/atmel-isc.txt
>> +++ b/Documentation/devicetree/bindings/media/atmel-isc.txt
>> @@ -25,6 +25,9 @@ ISC supports a single port node with parallel bus. It
>> should contain one
>> 'port' child node with child 'endpoint' node. Please refer to the bindings
>> defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
>>
>> +If all endpoint bus flags (i.e. hsync-active) are omitted, then CCIR656
>> +decoding (embedded sync) with CRC decoding is enabled.
>
> Sorry, this is wrong. There is a bus-type property defined in
> video-interfaces.txt
> that you should use to determine whether this is a parallel or a Bt.656 bus.
Actually, that's what your code already does, so it seems this text in the
bindings doc
is just plain wrong.
Hans
>
> BTW, for v2 also CC this to [email protected], since it has to be
> reviewed
> by the DT maintainers.
>
> Regards,
>
> Hans
>
>> +
>> Example:
>> isc: isc@f0008000 {
>> compatible = "atmel,sama5d2-isc";
>>
>
