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[2a02:8388:6584:6400:d322:7350:96d2:429d]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ace6e4e7b98sm118765066b.66.2025.04.25.03.46.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Apr 2025 03:46:27 -0700 (PDT) From: Luca Weiss Date: Fri, 25 Apr 2025 12:44:56 +0200 Subject: [PATCH 6/6] arm64: dts: qcom: sm7225-fairphone-fp4: Enable USB audio offload support Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250425-fp4-usb-audio-offload-v1-6-f90f571636e4@fairphone.com> References: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> In-Reply-To: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Felipe Balbi , Srinivas Kandagatla , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Bjorn Andersson , Konrad Dybcio , Wesley Cheng , Stephan Gerhold Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, Luca Weiss X-Mailer: b4 0.14.2 Enable USB audio offloading which allows to play audio via a USB-C headset with lower power consumption and enabling some other features. This can be used like the following: $ amixer -c0 cset name='USB_RX Audio Mixer MultiMedia1' On $ aplay --device=plughw:0,0 test.wav Compared to regular playback to the USB sound card no interrupts should appear on the xhci-hcd interrupts during playback, instead the ADSP will be handling the playback. Signed-off-by: Luca Weiss --- arch/arm64/boot/dts/qcom/sm6350.dtsi | 3 ++ arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 37 +++++++++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi index 9a1b9f02282a0cf2e39bf2ade21989dbf4362bc1..ade69296cbc99eab3ee6dc020f2064d102a3b115 100644 --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi @@ -2956,6 +2956,9 @@ wifi: wifi@18800000 { }; }; + sound: sound { + }; + thermal-zones { aoss0-thermal { thermal-sensors = <&tsens0 0>; diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts index 71e87ab929551b339216a5fa583833ed8661a606..0f8e0a988db0d32384f39537731c77344ec50cf2 100644 --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "sm7225.dtsi" #include "pm6150l.dtsi" @@ -955,6 +956,12 @@ channel@644 { }; }; +&q6asmdai { + dai@0 { + reg = ; + }; +}; + &qup_uart1_cts { /* * Configure a bias-bus-hold on CTS to lower power @@ -1023,6 +1030,35 @@ &sdhc_2 { status = "okay"; }; +&sound { + compatible = "fairphone,fp4-sndcard"; + model = "Fairphone 4"; + + mm1-dai-link { + link-name = "MultiMedia1"; + + cpu { + sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>; + }; + }; + + usb-dai-link { + link-name = "USB Playback"; + + cpu { + sound-dai = <&q6afedai USB_RX>; + }; + + codec { + sound-dai = <&q6usbdai USB_RX>; + }; + + platform { + sound-dai = <&q6routing>; + }; + }; +}; + &tlmm { gpio-reserved-ranges = <13 4>, <56 2>; @@ -1178,6 +1214,7 @@ &usb_1 { &usb_1_dwc3 { maximum-speed = "super-speed"; dr_mode = "otg"; + num-hc-interrupters = /bits/ 16 <3>; }; &usb_1_dwc3_hs_out {