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From: Hans Verkuil <hansverk@cisco.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-media@vger.kernel.org,
	Hans Verkuil <hans.verkuil@cisco.com>,
	Lars-Peter Clausen <lars@metafoo.de>
Subject: Re: [PATCH] adv7611: Set HPD GPIO direction to output
Date: Wed, 26 Mar 2014 11:01:52 +0100	[thread overview]
Message-ID: <5332A590.8000601@cisco.com> (raw)
In-Reply-To: <2189761.hxRNmn9JuL@avalon>

In that case:

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>

Regards,

	Hans

On 03/26/14 11:03, Laurent Pinchart wrote:
> Hi Hans,
> 
> On Wednesday 26 March 2014 10:52:30 Hans Verkuil wrote:
>> Hi Laurent,
>>
>> Stupid question perhaps, but why is gpiod_set_value_cansleep() removed?
>> Does setting the output direction force the value to 0 as well?
> 
> The last argument to gpiod_direction_output() sets the initial output level, 
> yes.
> 
>> On 03/26/14 03:28, Laurent Pinchart wrote:
>>> The HPD GPIO is used as an output but its direction is never set. Fix
>>> it.
>>>
>>> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>>> ---
>>>
>>>  drivers/media/i2c/adv7604.c | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> This patch applies on top of the ADV7611 support series queued for v3.16.
>>>
>>> diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
>>> index 51f14ab..b38ebb9 100644
>>> --- a/drivers/media/i2c/adv7604.c
>>> +++ b/drivers/media/i2c/adv7604.c
>>> @@ -2845,7 +2845,7 @@ static int adv7604_probe(struct i2c_client *client,
>>>  		if (IS_ERR(state->hpd_gpio[i]))
>>>  			continue;
>>>
>>> -		gpiod_set_value_cansleep(state->hpd_gpio[i], 0);
>>> +		gpiod_direction_output(state->hpd_gpio[i], 0);
>>>
>>>  		v4l_info(client, "Handling HPD %u GPIO\n", i);
>>>  	}
> 

      reply	other threads:[~2014-03-26 10:02 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-26  2:28 [PATCH] adv7611: Set HPD GPIO direction to output Laurent Pinchart
2014-03-26  9:52 ` Hans Verkuil
2014-03-26 10:03   ` Laurent Pinchart
2014-03-26 10:01     ` Hans Verkuil [this message]

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