[PATCH v3 8/9] drm/tegra: vic: Implement get_streamid_offset

Mikko Perttunen cyndis at kapsi.fi
Mon Feb 21 03:44:26 PST 2022


On 2/19/22 20:54, Dmitry Osipenko wrote:
> 19.02.2022 21:49, Dmitry Osipenko пишет:
>> 18.02.2022 14:39, Mikko Perttunen пишет:
>>> +static int vic_get_streamid_offset(struct tegra_drm_client *client)
>>> +{
>>> +	struct vic *vic = to_vic(client);
>>> +	int err;
>>> +
>>> +	err = vic_load_firmware(vic);
>>
>> You can't invoke vic_load_firmware() while RPM is suspended. Either
>> replace this with RPM get/put or do something else.

Why not, I'm not seeing any HW accesses in vic_load_firmware? Although 
it looks like it might race with the vic_load_firmware call in 
vic_runtime_resume which probably needs to be fixed.

>>
>>> +	if (err < 0)
>>> +		return err;
>>> +
>>> +	if (vic->can_use_context)
>>> +		return 0x30;
>>> +	else
>>> +		return -ENOTSUPP;
>>
>> If (!vic->can_use_context)
>> 	return -ENOTSUPP;
>>
>> return 0x30;
> 
> and s/ENOTSUPP/EOPNOTSUPP/

Ok.

Mikko



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