linux-kernel - Re: [PATCH V3 4/4] mailbox: qcom-cpucp: Mark the irq with IRQF_NO

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Message-ID: <d1f12236-220a-43de-a69a-12831bc8a691@oss.qualcomm.com>
Date: Mon, 7 Oct 2024 15:14:04 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Sibi Sankar <quic_sibis@...cinc.com>, sudeep.holla@....com,
        cristian.marussi@....com, ulf.hansson@...aro.org,
        jassisinghbrar@...il.com
Cc: linux-kernel@...r.kernel.org, arm-scmi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        johan@...nel.org, konradybcio@...nel.org, linux-pm@...r.kernel.org,
        tstrudel@...gle.com, rafael@...nel.org,
        Johan Hovold <johan+linaro@...nel.org>
Subject: Re: [PATCH V3 4/4] mailbox: qcom-cpucp: Mark the irq with
 IRQF_NO_SUSPEND flag

On 7.10.2024 8:06 AM, Sibi Sankar wrote:
> The qcom-cpucp mailbox irq is expected to function during suspend-resume
> cycle particularly when the scmi cpufreq driver can query the current
> frequency using the get_level message after the cpus are brought up during
> resume. Hence mark the irq with IRQF_NO_SUSPEND flag to fix the do_xfer
> failures we see during resume.
> 
> Err Logs:
> arm-scmi firmware:scmi: timed out in resp(caller:do_xfer+0x164/0x568)
> cpufreq: cpufreq_online: ->get() failed
> 
> Reported-by: Johan Hovold <johan+linaro@...nel.org>
> Closes: https://lore.kernel.org/lkml/ZtgFj1y5ggipgEOS@hovoldconsulting.com/
> Fixes: 0e2a9a03106c ("mailbox: Add support for QTI CPUCP mailbox controller")
> Signed-off-by: Sibi Sankar <quic_sibis@...cinc.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad