linux-kernel - Re: [PATCH 2/4] soc: qcom: aoss: Add debugfs interface for sending messages

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Message-ID: <0ec53a07-0b7d-47d1-9589-32c841cb691e@quicinc.com>
Date:   Tue, 1 Aug 2023 10:11:04 +0530
From:   Pavan Kondeti <quic_pkondeti@...cinc.com>
To:     Bjorn Andersson <quic_bjorande@...cinc.com>
CC:     Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Chris Lew <quic_clew@...cinc.com>,
        Alex Elder <elder@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-remoteproc@...r.kernel.org>
Subject: Re: [PATCH 2/4] soc: qcom: aoss: Add debugfs interface for sending
 messages

On Sun, Jul 30, 2023 at 09:10:11PM -0700, Bjorn Andersson wrote:
> From: Chris Lew <clew@...eaurora.org>
> 
> In addition to the normal runtime commands, the Always On Processor
> (AOP) provides a number of debug commands which can be used during
> system debugging for things such as preventing power collapse or placing
> floor votes for certain resources. Some of these are documented in the
> Robotics RB5 "Debug AOP ADB" linked below.
> 
> Provide a debugfs interface for the developer/tester to send these
> commands to the AOP.
> 
> Link: https://docs.qualcomm.com/bundle/publicresource/topics/80-88500-3/85_Debugging_AOP_ADB.html
> Signed-off-by: Chris Lew <clew@...eaurora.org>
> [bjorn: Dropped debugfs guards, improve error codes, rewrote commit message]
> Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>

Thanks Bjorn and Chris for enabling this interface. It will be very useful. 
We use this interface  in downstream kernel during throughput/suspend issues debug. 
I have tested your series with v6.4 on SM8550 and it works as expected.

Thanks,
Pavan