From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../devicetree/bindings/sound/fsl,micfil.yaml      | 89 ++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,micfil.yaml

(limited to 'Documentation/devicetree/bindings/sound/fsl,micfil.yaml')

diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.yaml b/Documentation/devicetree/bindings/sound/fsl,micfil.yaml
new file mode 100644
index 000000000..b7e605835
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,micfil.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,micfil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP MICFIL Digital Audio Interface (MICFIL)
+
+maintainers:
+  - Shengjiu Wang <shengjiu.wang@nxp.com>
+
+description: |
+  The MICFIL digital interface provides a 16-bit or 24-bit audio signal
+  from a PDM microphone bitstream in a configurable output sampling rate.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8mm-micfil
+      - fsl,imx8mp-micfil
+      - fsl,imx93-micfil
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: Digital Microphone interface interrupt
+      - description: Digital Microphone interface error interrupt
+      - description: voice activity detector event interrupt
+      - description: voice activity detector error interrupt
+
+  dmas:
+    items:
+      - description: DMA controller phandle and request line for RX
+
+  dma-names:
+    items:
+      - const: rx
+
+  clocks:
+    items:
+      - description: The ipg clock for register access
+      - description: internal micfil clock
+      - description: PLL clock source for 8kHz series
+      - description: PLL clock source for 11kHz series
+      - description: External clock 3
+    minItems: 2
+
+  clock-names:
+    items:
+      - const: ipg_clk
+      - const: ipg_clk_app
+      - const: pll8k
+      - const: pll11k
+      - const: clkext3
+    minItems: 2
+
+  "#sound-dai-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - dmas
+  - dma-names
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx8mm-clock.h>
+    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>;
+        clock-names = "ipg_clk", "ipg_clk_app";
+        dmas = <&sdma2 24 25 0>;
+        dma-names = "rx";
+    };
-- 
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