[PATCH 1/2] drm/bridge: ti-tfp410: support hpd via gpio

Jyri Sarha jsarha at ti.com
Tue Mar 28 06:32:34 PDT 2017


On 03/27/17 08:58, Archit Taneja wrote:
> Hi,
> 
> On 03/07/2017 03:21 AM, Christopher Spinrath wrote:
>> Hi Fabio,
>>
>> On 03/06/2017 10:46 PM, Fabio Estevam wrote:
>>> Hi Christopher,
>>>
>>> On Mon, Mar 6, 2017 at 6:40 PM, 
>>> <christopher.spinrath at rwth-aachen.de> wrote:
>>>> From: Christopher Spinrath <christopher.spinrath at rwth-aachen.de>
>>>>
>>>> On some boards the hpd pin of a hdmi connector is wired up to a gpio
>>>> pin. Since in the DRM world the tfp410 driver is responsible for
>>>> handling the connector, add support for hpd gpios in this very driver.
>>>>
>>>> Signed-off-by: Christopher Spinrath
>>>> <christopher.spinrath at rwth-aachen.de>
>>>> ---
>>>>  drivers/gpu/drm/bridge/ti-tfp410.c | 72
>>>> ++++++++++++++++++++++++++++++++++++--
>>>
...
>>
> 
> The patch looks good to me.
> 
> Jyri,
> 
> Is it possible for you to verify this on Beaglebone platform?
> 

If I read my BeagleBone DVI-D Cape docs right, it does not have the HPD
pin connected. At least it does not mention any gpio that could be used
for the purpose. So I can not easily test this patch in real world
situation. For what it is worth the patch looks ok to me too.

Best regards,
Jyri




More information about the linux-arm-kernel mailing list