Re: [PATCH 22/31] media: dvb-core create tuner to demod pad link in disabled state

From: Shuah Khan
Date: Thu Jan 28 2016 - 15:09:34 EST


On 01/28/2016 09:38 AM, Mauro Carvalho Chehab wrote:
> Em Wed, 6 Jan 2016 13:27:11 -0700
> Shuah Khan <shuahkh@xxxxxxxxxxxxxxx> escreveu:
>
>> Create tuner to demod pad link in disabled state to help avoid
>> disable step when tuner resource is requested by video or audio.
>>
>> Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
>> ---
>> drivers/media/dvb-core/dvbdev.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
>> index b56e008..1d10fa6 100644
>> --- a/drivers/media/dvb-core/dvbdev.c
>> +++ b/drivers/media/dvb-core/dvbdev.c
>> @@ -593,8 +593,9 @@ int dvb_create_media_graph(struct dvb_adapter *adap)
>> }
>>
>> if (tuner && demod) {
>> + /* create tuner to demod link deactivated */
>> ret = media_create_pad_link(tuner, TUNER_PAD_IF_OUTPUT,
>> - demod, 0, MEDIA_LNK_FL_ENABLED);
>> + demod, 0, 0);
>
> This is not right, as it makes no sense for DVB-only drivers.

Right. Not a good change for DVB only drivers. But does make
sense on hybrid. I will make sure it gets done only in hyrbid
cases.

thanks,
-- Shuah

>
>> if (ret)
>> return ret;
>> }


--
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@xxxxxxxxxxxxxxx | (970) 217-8978