6.11-stable review patch. If anyone has any objections, please let me know.
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From: Sibi Sankar quic_sibis@quicinc.com
commit d2fab3fc27cbca7ba65c539a2c5fc7f941231983 upstream.
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@kernel.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@quicinc.com Reviewed-by: Konrad Dybcio konrad.dybcio@oss.qualcomm.com Tested-by: Johan Hovold johan+linaro@kernel.org Cc: stable@vger.kernel.org Message-ID: 20241030125512.2884761-7-quic_sibis@quicinc.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mailbox/qcom-cpucp-mbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mailbox/qcom-cpucp-mbox.c b/drivers/mailbox/qcom-cpucp-mbox.c index e5437c294803..44f4ed15f818 100644 --- a/drivers/mailbox/qcom-cpucp-mbox.c +++ b/drivers/mailbox/qcom-cpucp-mbox.c @@ -138,7 +138,7 @@ static int qcom_cpucp_mbox_probe(struct platform_device *pdev) return irq;
ret = devm_request_irq(dev, irq, qcom_cpucp_mbox_irq_fn, - IRQF_TRIGGER_HIGH, "apss_cpucp_mbox", cpucp); + IRQF_TRIGGER_HIGH | IRQF_NO_SUSPEND, "apss_cpucp_mbox", cpucp); if (ret < 0) return dev_err_probe(dev, ret, "Failed to register irq: %d\n", irq);