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

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Message-ID: <9bb7fbb6-6309-3f30-dd4f-2ee3d187c074@linaro.org>
Date:   Thu, 18 Jun 2020 11:20:23 +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

Hi Rajendra,

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 ?


-- 
regards,
Stan