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From:   Adam Ford <aford173@gmail.com>
To:     linux-arm-kernel@lists.infradead.org
Cc:     aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] arm64: dts: imx8mm: Add support for micfil
Date:   Thu,  8 Oct 2020 16:27:04 -0500
Message-Id: <20201008212706.870115-1-aford173@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

The i.MX8M Mini has supports the MICFIL digital interface.
It's a 16-bit audio signal from a PDM microphone bitstream.
The driver is already in the kernel, but the node is missing.

This patch adds the micfil node.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index b83f400def8b..fad1f9cdb241 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -339,6 +339,25 @@ sai6: sai@30060000 {
 				status = "disabled";
 			};
 
+			micfil: audio-controller@30080000 {
+				compatible = "fsl,imx8mm-micfil";
+				reg = <0x30080000 0x10000>;
+				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 = <&clk IMX8MM_CLK_PDM_IPG>,
+					 <&clk IMX8MM_CLK_PDM_ROOT>,
+					 <&clk IMX8MM_AUDIO_PLL1_OUT>,
+					 <&clk IMX8MM_AUDIO_PLL2_OUT>,
+					 <&clk IMX8MM_CLK_EXT3>;
+				clock-names = "ipg_clk", "ipg_clk_app",
+					      "pll8k", "pll11k", "clkext3";
+				dmas = <&sdma2 24 25 0x80000000>;
+				dma-names = "rx";
+				status = "disabled";
+			};
+
 			gpio1: gpio@30200000 {
 				compatible = "fsl,imx8mm-gpio", "fsl,imx35-gpio";
 				reg = <0x30200000 0x10000>;
-- 
2.25.1