linux-kernel - Re: [PATCH v4 4/5] arm64: dts: sdm845: Add OPP tables and power-domains for venus

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Date:   Fri, 24 Jul 2020 10:28:25 -0600
From:   Lina Iyer <ilina@...eaurora.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>
Cc:     Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        robh+dt@...nel.org, agross@...nel.org, bjorn.andersson@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        mka@...omium.org, Maulik Shah <mkshah@...eaurora.org>
Subject: Re: [PATCH v4 4/5] arm64: dts: sdm845: Add OPP tables and
 power-domains for venus

On Fri, Jul 24 2020 at 03:03 -0600, Rajendra Nayak wrote:
>Hi Maulik/Lina,
>
>On 7/23/2020 11:36 PM, Stanimir Varbanov wrote:
>>Hi Rajendra,
>>
>>After applying 2,3 and 4/5 patches on linaro-integration v5.8-rc2 I see
>>below messages on db845:
>>
>>qcom-venus aa00000.video-codec: dev_pm_opp_set_rate: failed to find
>>current OPP for freq 533000097 (-34)
>>
>>^^^ This one is new.
>>
>>qcom_rpmh TCS Busy, retrying RPMH message send: addr=0x30000
>>
>>^^^ and this message is annoying, can we make it pr_debug in rpmh?
>
How annoyingly often do you see this message?
Usually, this is an indication of bad system state either on remote
processors in the SoC or in Linux itself. On a smooth sailing build you
should not see this 'warning'.

>Would you be fine with moving this message to a pr_debug? Its currently
>a pr_info_ratelimited()
I would rather not, moving this out of sight will mask a lot serious
issues that otherwise bring attention to the developers.

--Lina