linux-kernel - [PATCH 1/4] arm64: dts: mediatek: cherry: Add Audio Front End (AFE) support

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Date:   Thu, 22 Sep 2022 11:49:05 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     matthias.bgg@...il.com
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, wenst@...omium.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH 1/4] arm64: dts: mediatek: cherry: Add Audio Front End (AFE) support

In preparation for adding audio support, enable the AFE HW with
the appropriate eTDM configuration and memory region.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 9b62e161db26..bc7890300a57 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -117,9 +117,23 @@ scp_mem: memory@...00000 {
 			reg = <0 0x50000000 0 0x2900000>;
 			no-map;
 		};
+
+		afe_mem: memory@...80000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x60d80000 0 0x100000>;
+			no-map;
+		};
 	};
 };
 
+&afe {
+	status = "okay";
+
+	mediatek,etdm-in2-cowork-source = <2>;
+	mediatek,etdm-out2-cowork-source = <0>;
+	memory-region = <&afe_mem>;
+};
+
 &i2c0 {
 	status = "okay";
 
-- 
2.37.2