linux-kernel - [PATCH V3 2/3] arm64: dts: imx8mp: Add micfil node

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Message-Id: <20230831044431.250338-2-aford173@gmail.com>
Date:   Wed, 30 Aug 2023 23:44:30 -0500
From:   Adam Ford <aford173@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     marex@...x.de, aford@...conembedded.com,
        Adam Ford <aford173@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Abel Vesa <abelvesa@...nel.org>, Peng Fan <peng.fan@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Subject: [PATCH V3 2/3] arm64: dts: imx8mp: Add micfil node

The i.MX8MP has a micfil controller which is used for interfacing
with a pulse density microphone. Add the node and mark it as
disabled by default.

Signed-off-by: Adam Ford <aford173@...il.com>
---
V3:  The AUDIOMIX_PDM_ROOT doesn't exist and the real clock is
     called IMX8MP_CLK_AUDIOMIX_PDM_SEL, so swap it out.

V2:  No change

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 3167706d81e1..341fd0369ce9 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -1479,6 +1479,27 @@ easrc: easrc@...90000 {
 					fsl,asrc-format = <2>;
 					status = "disabled";
 				};
+
+				micfil: audio-controller@...a0000 {
+					compatible = "fsl,imx8mp-micfil";
+					reg = <0x30ca0000 0x10000>;
+					#sound-dai-cells = <0>;
+					interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
+						     <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
+						     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+						     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_PDM_IPG>,
+						 <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_PDM_SEL>,
+						 <&clk IMX8MP_AUDIO_PLL1_OUT>,
+						 <&clk IMX8MP_AUDIO_PLL2_OUT>,
+						 <&clk IMX8MP_CLK_EXT3>;
+					clock-names = "ipg_clk", "ipg_clk_app",
+						      "pll8k", "pll11k", "clkext3";
+					dmas = <&sdma2 24 25 0x80000000>;
+					dma-names = "rx";
+					status = "disabled";
+				};
+
 			};
 
 			sdma3: dma-controller@...00000 {
-- 
2.39.2