linux-kernel - Re: [PATCH v6 0/6] DVFS for IO devices on sdm845 and sc7180

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Message-ID: <d715708b-db7a-efb7-5861-aa5bb8dfcd86@linaro.org>
Date:   Thu, 18 Jun 2020 15:25:10 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Mark Brown <broonie@...nel.org>
Cc:     bjorn.andersson@...aro.org, agross@...nel.org, robdclark@...il.com,
        robdclark@...omium.org, viresh.kumar@...aro.org, sboyd@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 0/6] DVFS for IO devices on sdm845 and sc7180



On 6/18/20 3:11 PM, Rajendra Nayak wrote:
> 
> Hey Stan,
>  
>> On 6/18/20 7:47 AM, Rajendra Nayak wrote:
>>> Hey Matthias, thanks for summarizing this.
>>>
>>> On 6/18/2020 3:45 AM, Matthias Kaehlcke wrote:
>>>> What is the plan for landing these, it seems not all must/should
>>>> go through the QCOM tree.
>>>>
>>>> My guesses:
>>>>
>>>> tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state
>>>> spi: spi-geni-qcom: Use OPP API to set clk/perf state
>>>>     QCOM tree due to shared dependency on change in
>>>> include/linux/qcom-geni-se.h
>>>
>>> That's correct, Bjorn/Andy, can these be pulled in now for 5.9?
>>> They have acks from Greg for serial and Mark for the spi patch.
>>>  
>>>> drm/msm/dpu: Use OPP API to set clk/perf state
>>>> drm/msm: dsi: Use OPP API to set clk/perf state
>>>>     drm/msm tree
>>>
>>> Correct, the dsi patch is still not reviewed by Rob, so once that's
>>> done,
>>> I am guessing Rob would pull both of these.
>>>
>>>>
>>>> media: venus: core: Add support for opp tables/perf voting
>>>>     venus tree
>>>
>>> correct, this is pending review/ack from Stan.
>>
>> I tested the changes in the driver, and they looks fine. But when
>> applied the corresponding change in the DT node I see this message when
>> the streaming is stopping:
>>
>> qcom_rpmh TCS Busy, retrying RPMH message send: addr=0x30000
>>
>> I tested on v5.7 (linaro-integration). Should I be worried ?
> 
> Is this seen on sdm845 or sc7180, or both?

Seen on sdm845, I don't have sc7180 to test.

I can try it on 5.8-rc1 integration-linux-qcomlt if you think there
might be a fix in rpmh.


-- 
regards,
Stan