lkml.org 
[lkml]   [2018]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v8 5/7] media: i2c: Add TDA1997x HDMI receiver driver
From
Date
On 02/06/2018 10:03 PM, Tim Harvey wrote:
> On Tue, Feb 6, 2018 at 12:38 PM, Hans Verkuil <hverkuil@xs4all.nl> wrote:
>> On 02/06/2018 09:27 PM, Tim Harvey wrote:
>>> Add support for the TDA1997x HDMI receivers.
>>>
>>> Cc: Hans Verkuil <hverkuil@xs4all.nl>
>>> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
>>> ---
>>
>> <snip>
>>
>>> +static int tda1997x_get_dv_timings_cap(struct v4l2_subdev *sd,
>>> + struct v4l2_dv_timings_cap *cap)
>>> +{
>>> + if (cap->pad != TDA1997X_PAD_SOURCE)
>>> + return -EINVAL;
>>> +
>>> + *cap = tda1997x_dv_timings_cap;
>>> + return 0;
>>> +}
>>> +
>>> +static int tda1997x_enum_dv_timings(struct v4l2_subdev *sd,
>>> + struct v4l2_enum_dv_timings *timings)
>>> +{
>>> + if (timings->pad != TDA1997X_PAD_SOURCE)
>>> + return -EINVAL;
>>> +
>>> + return v4l2_enum_dv_timings_cap(timings, &tda1997x_dv_timings_cap,
>>> + NULL, NULL);
>>> +}
>>
>> You shouldn't need this pad test: it's done in the v4l2-subdev.c core code
>> already. But please double-check :-)
>>
>
> oh right - forgot to check that. Yes, v4l2-subdev.c has pad bounds
> checking on all ops I use so I can remove them.
>
>> Can you post the output of the v4l2-compliance test? I'm curious to see it.
>
> it's in the cover letter (should I move it to the driver patch for
> subsequent submittals?)

Ah, it was all the way down after the MC topology. That's why I missed it.

>
>>
>> Can you also try to run v4l2-compliance -m /dev/mediaX? That also tests
>> whether the right entity types are set (note: testing for that should
>> also happen in the subdev compliance test, but I haven't done that yet).
>>
>
> root@ventana:~# v4l2-compliance -m0
> v4l2-compliance SHA : b2f8f9049056eb6f9e028927dacb2c715a062df8
> Media Driver Info:
> Driver name : imx-media
> Model : imx-media
> Serial :
> Bus info :
> Media version : 4.15.0
> Hardware revision: 0x00000000 (0)
> Driver version : 4.15.0
>
> Compliance test for device /dev/media0:
>
> Required ioctls:
> test MEDIA_IOC_DEVICE_INFO: OK
>
> Allow for multiple opens:
> test second /dev/media0 open: OK
> test MEDIA_IOC_DEVICE_INFO: OK
> test for unlimited opens: OK
>
> Media Controller ioctls:
> fail: v4l2-test-media.cpp(141): ent.function ==
> MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN
> test MEDIA_IOC_G_TOPOLOGY: FAIL
> fail: v4l2-test-media.cpp(256):
> v2_entities_set.find(ent.id) == v2_entities_set.end()
> test MEDIA_IOC_ENUM_ENTITIES/LINKS: FAIL
> test MEDIA_IOC_SETUP_LINK: OK
>
> Total: 7, Succeeded: 5, Failed: 2, Warnings: 0
>
> foiled again!
>
> Is something missing after v4l2_i2c_subdev_init() or is this perhaps
> something missing in the imx media drivers?
>
> v4l2_i2c_subdev_init(sd, client, &tda1997x_subdev_ops);
> snprintf(sd->name, sizeof(sd->name), "%s %d-%04x",
> id->name, i2c_adapter_id(client->adapter),
> client->addr);
> sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
> sd->entity.ops = &tda1997x_media_ops;

Yeah, I was afraid of that. Anyway, I saw some issues in the subdev compliance.
I'll reply to the cover letter about that.

Regards,

Hans

\
 
 \ /
  Last update: 2018-02-06 22:10    [W:0.043 / U:1.672 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site