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Thu, 24 Apr 2025 03:25:29 -0700 (PDT) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:fa13:e633:684b:257]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-22db4dda40fsm9680305ad.104.2025.04.24.03.25.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Apr 2025 03:25:29 -0700 (PDT) From: Chen-Yu Tsai To: Liam Girdwood , Mark Brown , Matthias Brugger , AngeloGioacchino Del Regno , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Chen-Yu Tsai , Jaroslav Kysela , Takashi Iwai , Jiaxin Yu , linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 03/13] ASoC: dt-bindings: mt8173-afe-pcm: Allow specifying reserved memory region Date: Thu, 24 Apr 2025 18:24:57 +0800 Message-ID: <20250424102509.1083185-4-wenst@chromium.org> X-Mailer: git-send-email 2.49.0.805.g082f7c87e0-goog In-Reply-To: <20250424102509.1083185-1-wenst@chromium.org> References: <20250424102509.1083185-1-wenst@chromium.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit It is desirable to reserve memory for the audio frontend. Allow the "memory-region" property, to be used to point to a reserved memory region. Signed-off-by: Chen-Yu Tsai --- .../devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml index 666408d32f5c..d8993b5d457a 100644 --- a/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml +++ b/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml @@ -48,6 +48,10 @@ properties: power-domains: maxItems: 1 + memory-region: + description: memory region for audio DMA buffers + maxItems: 1 + required: - compatible - reg @@ -90,4 +94,5 @@ examples: "i2s2_m", "i2s3_m", "i2s3_b"; + memory-region = <&afe_dma_mem>; }; -- 2.49.0.805.g082f7c87e0-goog