From: Kalle Valo <kvalo@kernel.org>
To: Marc Gonzalez <mgonzalez@freebox.fr>
Cc: Jeff Johnson <quic_jjohnson@quicinc.com>,
ath10k <ath10k@lists.infradead.org>,
wireless <linux-wireless@vger.kernel.org>,
DT <devicetree@vger.kernel.org>,
MSM <linux-arm-msm@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Pierre-Hugues Husson <phhusson@freebox.fr>,
Arnaud Vrac <avrac@freebox.fr>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
Jami Kettunen <jamipkettunen@gmail.com>,
Jeffrey Hugo <quic_jhugo@quicinc.com>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Alexey Minnekhanov <alexeymin@postmarketos.org>
Subject: Re: [PATCH v3 1/3] dt-bindings: net: wireless: ath10k: add qcom,no-msa-ready-indicator prop
Date: Mon, 13 May 2024 14:16:00 +0000 (UTC) [thread overview]
Message-ID: <171560975908.1690511.498631481702370762.kvalo@kernel.org> (raw)
In-Reply-To: <54ac2295-36b4-49fc-9583-a10db8d9d5d6@freebox.fr>
Marc Gonzalez <mgonzalez@freebox.fr> wrote:
> The ath10k driver waits for an "MSA_READY" indicator
> to complete initialization. If the indicator is not
> received, then the device remains unusable.
>
> cf. ath10k_qmi_driver_event_work()
>
> Several msm8998-based devices are affected by this issue.
> Oddly, it seems safe to NOT wait for the indicator, and
> proceed immediately when QMI_EVENT_SERVER_ARRIVE.
>
> Jeff Johnson wrote:
>
> The feedback I received was "it might be ok to change all ath10k qmi
> to skip waiting for msa_ready", and it was pointed out that ath11k
> (and ath12k) do not wait for it.
>
> However with so many deployed devices, "might be ok" isn't a strong
> argument for changing the default behavior.
>
> Kalle Valo first suggested setting a bit in firmware-5.bin to trigger
> work-around in the driver. However, firmware-5.bin is parsed too late.
> So we are stuck with a DT property.
>
> Signed-off-by: Marc Gonzalez <mgonzalez@freebox.fr>
> Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
> Acked-by: Rob Herring (Arm) <robh@kernel.org>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
2 patches applied to ath-next branch of ath.git, thanks.
71b6e321e302 dt-bindings: net: wireless: ath10k: add qcom,no-msa-ready-indicator prop
6d67d18014a8 wifi: ath10k: do not always wait for MSA_READY indicator
--
https://patchwork.kernel.org/project/linux-wireless/patch/54ac2295-36b4-49fc-9583-a10db8d9d5d6@freebox.fr/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
next prev parent reply other threads:[~2024-05-13 14:16 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 14:01 [PATCH v3 0/3] Work around missing MSA_READY indicator for msm8998 devices Marc Gonzalez
2024-04-29 14:04 ` [PATCH v3 1/3] dt-bindings: net: wireless: ath10k: add qcom,no-msa-ready-indicator prop Marc Gonzalez
2024-04-30 2:22 ` Bjorn Andersson
2024-04-30 4:06 ` Kalle Valo
2024-04-30 11:10 ` Marc Gonzalez
2024-05-06 12:16 ` Kalle Valo
2024-05-07 17:03 ` Kalle Valo
2024-05-13 8:47 ` Marc Gonzalez
2024-04-30 14:39 ` Jeff Johnson
2024-05-07 15:05 ` Rob Herring (Arm)
2024-05-13 14:16 ` Kalle Valo [this message]
2024-05-28 9:54 ` Marc Gonzalez
2024-05-28 10:11 ` Kalle Valo
2024-05-28 12:36 ` Marc Gonzalez
2024-05-28 13:34 ` Kalle Valo
2024-04-29 14:06 ` [PATCH v3 2/3] wifi: ath10k: do not always wait for MSA_READY indicator Marc Gonzalez
2024-04-30 2:24 ` Bjorn Andersson
2024-04-30 11:15 ` Marc Gonzalez
2024-04-30 14:39 ` Jeff Johnson
2024-04-29 14:07 ` [PATCH v3 3/3] arm64: dts: qcom: msm8998: set qcom,no-msa-ready-indicator for wifi Marc Gonzalez
2024-04-30 14:40 ` Jeff Johnson
2024-05-06 10:39 ` Marc Gonzalez
2024-05-07 11:06 ` Konrad Dybcio
2024-04-29 23:24 ` [PATCH v3 0/3] Work around missing MSA_READY indicator for msm8998 devices Bryan O'Donoghue
2024-04-30 2:18 ` Bjorn Andersson
2024-05-29 2:01 ` (subset) " Bjorn Andersson
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