linux-kernel - Re: [PATCH v8 00/14] Rockchip ISP1 Driver

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Date:   Wed, 31 Jul 2019 06:29:59 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Helen Koike <helen.koike@...labora.com>,
        linux-rockchip@...ts.infradead.org
Cc:     devicetree@...r.kernel.org, eddie.cai.linux@...il.com,
        mchehab@...nel.org, heiko@...ech.de, jeffy.chen@...k-chips.com,
        zyc@...k-chips.com, linux-kernel@...r.kernel.org,
        tfiga@...omium.org, hans.verkuil@...co.com,
        laurent.pinchart@...asonboard.com, sakari.ailus@...ux.intel.com,
        kernel@...labora.com, ezequiel@...labora.com,
        linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        zhengsq@...k-chips.com
Subject: Re: [PATCH v8 00/14] Rockchip ISP1 Driver

On 7/31/19 2:08 AM, Helen Koike wrote:
> 
> 
> On 7/30/19 5:50 PM, Helen Koike wrote:
>>
>>
>> On 7/30/19 5:15 PM, Hans Verkuil wrote:
>>> On 7/30/19 8:42 PM, Helen Koike wrote:
>>>> Hello,
>>>>
>>>> I'm re-sending a new version of ISP(Camera) v4l2 driver for rockchip
>>>> rk3399 SoC.
>>>>
>>>> I didn't change much from the last version, just applying the
>>>> suggestions made in the previous one.
>>>>
>>>> This patchset is also available at:
>>>> https://gitlab.collabora.com/koike/linux/tree/rockchip/isp/v8
>>>>
>>>> Libcamera patched to work with this version:
>>>> https://gitlab.collabora.com/koike/libcamera
>>>> (also sent to the mailing list)
>>>>
>>>> I tested on the rockpi 4 with a rpi v1.3 sensor and also with the
>>>> Scarlet Chromebook.
>>>>
>>>> Known issues (same as in v7):
>>>> -------------
>>>> - Reloading the module doesn't work (there is some missing cleanup when
>>>> unloading)
>>>> - When capturing in bayer format, changing the size doesn't seem to
>>>> affect the image.
>>>> - crop needs more tests
>>>> - v4l2-compliance error:
>>>>         fail: v4l2-test-controls.cpp(824): subscribe event for control 'Image Processing Controls' failed
>>>> test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: FAIL
>>>
>>> Can you mail me the full v4l2-compliance output?
>>
>> Sure, please check here: http://ix.io/1Q5u
>> I updated v4l-utils with the latest version and I re-ran bootstrap/configure/make,
>> but for some reason the hash from the link above is not the latest commit, probably some
>> old configuration somewhere. I'll resend this log as soon as I get v4l2-compliance
>> properly updated.
> 
> Please see the output of v4l2-compliance here with an updated v4l-utils: http://ix.io/1Q6A

So this FAIL is for /dev/v4l-subdev0 (rkisp1-isp-subdev).

What is weird that this subdev does not appear to have controls at all.

What is the output of 'v4l2-ctl -d /dev/v4l-subdev0 -l'? And if it lists
controls, then why?

If you run 'v4l2-compliance -u /dev/v4l-subdev0', do you get a fail as
well?

BTW, note that struct rkisp1_isp_subdev has a ctrl_handler field that
isn't used at all.

Regards,

	Hans