On 03/28/2017 07:02 PM, Jyri Sarha wrote:
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@xxxxxxxxxxxxxx> wrote:
From: Christopher Spinrath <christopher.spinrath@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
---
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.
Thanks for the review. I looked at the tfp410 data sheet[1], there isn't
a HPD pin on the chip at all. My guess is that boards using tfp410 most
likely have the HPD pin routed to the SoC from the HDMI connector
(with a level shifter/shield in between).
We would eventually need to move the both ddc and hpd stuff to
a generic hdmi connector driver later on. I've queued this to
drm-misc-next.
[1]: http://www.ti.com/lit/ds/symlink/tfp410.pdf
Archit
Best regards,
Jyri
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