Re: [PATCH v11 00/11] Rockchip ISP Driver

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On 11/18/19 7:52 PM, Ezequiel Garcia wrote:
> Hi Hans,
> 
> Thanks for taking care of this.
> 
> On Thu, 2019-11-14 at 09:42 +0100, Hans Verkuil wrote:
>> On 11/14/19 6:12 AM, Helen Koike wrote:
>>> Hello,
>>>
>>> This series adds the Rockchip Image Signal Processing Unit v1 driver to
>>> staging.
>>>
>>> The main reason to be in staging is that people are already using it from the
>>> mailing list (including libcamera), and having it in mainline makes the workflow
>>> easier. Also, it is easier for other people to contribute back (with code
>>> or testing the driver).
>>>
>>> We plan to actively work on this driver to get it our of staging.
>>>
>>> This patchset is also available at:
>>> https://gitlab.collabora.com/koike/linux/tree/rockchip/isp/v11
>>>
>>> Libcamera patched to work with this version:
>>> https://gitlab.collabora.com/koike/libcamera
>>> (also sent to the mailing list)
>>>
>>> The major difference in v11 are:
>>> - Fixed compiling warnings found with W=1
>>> - Fixed checkpatch errors
>>> - Add clock-names values in dt-bindings
>>
>> Looking at checkpatch I see a few remaining issues that I believe should be
>> fixed before merging this:
>>
>> CHECK: spinlock_t definition without comment
>> #575: FILE: drivers/staging/media/rkisp1/isp_stats.h:43:
>> +       spinlock_t irq_lock;
>>
>> CHECK: struct mutex definition without comment
>> #581: FILE: drivers/staging/media/rkisp1/isp_stats.h:49:
>> +       struct mutex wq_lock;
>>
>> CHECK: spinlock_t definition without comment
>> #1648: FILE: drivers/staging/media/rkisp1/isp_params.h:25:
>> +       spinlock_t config_lock;
>>
>> CHECK: spinlock_t definition without comment
>> #2058: FILE: drivers/staging/media/rkisp1/capture.h:145:
>> +       spinlock_t vbq_lock;
>>
> 
> I'd rather merge this as-is, adding a TODO entry stating
> we need to revisit locking specifically, because I'd like
> to take a close look at these spinlocks/mutex,
> instead of just addding comments for then.

Fair enough! Just as long as it is mentioned somewhere.

> 
>> Once this is done together with the Jacob Chen email clarification
>> it is ready to be merged for v5.6.
>>
> 
> I'll find out more about this.

Thanks!

Remember that we are in the code freeze until v5.5-rc1 is released,
so you have time to make more adjustments if you want to.

Regards,

	Hans

> 
>> It passes all the sparse/smatch tests, so that's very good.
>>
> 
> Great!
> 
> Thanks,
> Ezequiel
> 


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