Re: [Patch v3 10/11] memory: tegra: handle no BWMGR MRQ support in BPMP

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On 23/03/2023 10:55, Thierry Reding wrote:
> On Wed, Mar 22, 2023 at 06:50:23PM +0100, Krzysztof Kozlowski wrote:
>> On 20/03/2023 19:24, Sumit Gupta wrote:
>>> If BPMP-FW doesn't support 'MRQ_BWMGR_INT', then the MC Client driver
>>> probe fails with 'EPROBE_DEFER' which it receives on calling the func
>>> 'devm_of_icc_get()'. Fix this by initializing the ICC even if the MRQ
>>> is missing and return 'EINVAL' from 'icc_set_bw()' instead of passing
>>> the request to BPMP-FW later when the BW request is made by client.
>>>
>>> Fixes: ("memory: tegra: add interconnect support for DRAM scaling in Tegra234")
>>
>> That's not correct tag.
>>
>> Anyway, send fixes separately.
> 
> I think this was a bit confusing. This fixes an issue that was
> introduced in a patch earlier in this series, so it's probably better to
> squash it into that patch rather than have a separate fix patch in the
> same series.
> 

Yeah, it is quite confusing to send buggy code and immediately fix it...
Introducing known bugs is actually non-bisectable and harming.

Best regards,
Krzysztof




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