linux-kernel - [PATCH 4/9] ASoC: meson: convert axg pdm to schema

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Message-Id: <20200224145821.262873-5-jbrunet@baylibre.com>
Date:   Mon, 24 Feb 2020 15:58:16 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>
Cc:     Jerome Brunet <jbrunet@...libre.com>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        Kevin Hilman <khilman@...libre.com>
Subject: [PATCH 4/9] ASoC: meson: convert axg pdm to schema

Convert the DT binding documentation for the Amlogic axg PDM device to
schema.

Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
 .../bindings/sound/amlogic,axg-pdm.txt        | 29 -------
 .../bindings/sound/amlogic,axg-pdm.yaml       | 79 +++++++++++++++++++
 2 files changed, 79 insertions(+), 29 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt
 create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml

diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt
deleted file mode 100644
index 716878107a24..000000000000
--- a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-* Amlogic Audio PDM input
-
-Required properties:
-- compatible: 'amlogic,axg-pdm' or
-	      'amlogic,g12a-pdm' or
-	      'amlogic,sm1-pdm'
-- reg: physical base address of the controller and length of memory
-       mapped region.
-- clocks: list of clock phandle, one for each entry clock-names.
-- clock-names: should contain the following:
-  * "pclk"   : peripheral clock.
-  * "dclk"   : pdm digital clock
-  * "sysclk" : dsp system clock
-- #sound-dai-cells: must be 0.
-
-Optional property:
-- resets: phandle to the dedicated reset line of the pdm input.
-
-Example of PDM on the A113 SoC:
-
-pdm: audio-controller@...32000 {
-	compatible = "amlogic,axg-pdm";
-	reg = <0x0 0xff632000 0x0 0x34>;
-	#sound-dai-cells = <0>;
-	clocks = <&clkc_audio AUD_CLKID_PDM>,
-		 <&clkc_audio AUD_CLKID_PDM_DCLK>,
-		 <&clkc_audio AUD_CLKID_PDM_SYSCLK>;
-	clock-names = "pclk", "dclk", "sysclk";
-};
diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml
new file mode 100644
index 000000000000..aa90b77e593d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/amlogic,axg-pdm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Audio AXG PDM input
+
+maintainers:
+  - Jerome Brunet <jbrunet@...libre.com>
+
+properties:
+  $nodename:
+    pattern: "^audio-controller@.*"
+
+  "#sound-dai-cells":
+    const: 0
+
+  compatible:
+    oneOf:
+      - items:
+        - enum:
+          - amlogic,g12a-pdm
+          - amlogic,sm1-pdm
+        - const:
+            amlogic,axg-pdm
+      - items:
+        - const:
+            amlogic,axg-pdm
+
+  clocks:
+    items:
+      - description: Peripheral clock
+      - description: PDM digital clock
+      - description: DSP system clock
+
+  clock-names:
+    items:
+      - const: pclk
+      - const: dclk
+      - const: sysclk
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - "#sound-dai-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - amlogic,g12a-pdm
+          - amlogic,sm1-pdm
+then:
+  required:
+    - resets
+
+examples:
+  - |
+    #include <dt-bindings/clock/axg-audio-clkc.h>
+
+    pdm: audio-controller@...32000 {
+        compatible = "amlogic,axg-pdm";
+        reg = <0x0 0xff632000 0x0 0x34>;
+        #sound-dai-cells = <0>;
+        clocks = <&clkc_audio AUD_CLKID_PDM>,
+                 <&clkc_audio AUD_CLKID_PDM_DCLK>,
+                 <&clkc_audio AUD_CLKID_PDM_SYSCLK>;
+        clock-names = "pclk", "dclk", "sysclk";
+    };
-- 
2.24.1