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Sat, 30 Mar 2024 11:25:20 -0700 (PDT) Received: from [192.168.1.20] ([178.197.223.16]) by smtp.gmail.com with ESMTPSA id t14-20020a05600c450e00b004148b9272a7sm9366640wmo.0.2024.03.30.11.25.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 30 Mar 2024 11:25:20 -0700 (PDT) Message-ID: <252618e8-9e80-4774-a96c-caa7f838ef01@linaro.org> Date: Sat, 30 Mar 2024 19:25:18 +0100 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: msm8998: set qcom,no-msa-ready-indicator for wifi To: Marc Gonzalez , Kalle Valo , Jeff Johnson , ath10k Cc: wireless , DT , MSM , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Pierre-Hugues Husson , Arnaud Vrac , Bjorn Andersson , Konrad Dybcio , Jami Kettunen , Jeffrey Hugo References: <5cdad89c-282a-4df5-a286-b8404bc4dd81@freebox.fr> Content-Language: en-US From: Krzysztof Kozlowski Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 28/03/2024 18:39, Marc Gonzalez 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. > I think you got pretty clear comments: "This sounds more like a firmware feature, not a hardware feature." "This is why having this property in DT does not look right place for this." Best regards, Krzysztof