linux-kernel - [PATCH 2/9] ASoC: meson: convert axg tdm interface to schema

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Date:   Mon, 24 Feb 2020 15:58:14 +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 2/9] ASoC: meson: convert axg tdm interface to schema

Convert the DT binding documentation for the Amlogic tdm interface to
schema.

Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
 .../bindings/sound/amlogic,axg-tdm-iface.txt  | 22 -------
 .../bindings/sound/amlogic,axg-tdm-iface.yaml | 57 +++++++++++++++++++
 2 files changed, 57 insertions(+), 22 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.txt
 create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.yaml

diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.txt
deleted file mode 100644
index cabfb26a5f22..000000000000
--- a/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-* Amlogic Audio TDM Interfaces
-
-Required properties:
-- compatible: 'amlogic,axg-tdm-iface'
-- clocks: list of clock phandle, one for each entry clock-names.
-- clock-names: should contain the following:
-  * "sclk" : bit clock.
-  * "lrclk": sample clock
-  * "mclk" : master clock
-	     -> optional if the interface is in clock slave mode.
-- #sound-dai-cells: must be 0.
-
-Example of TDM_A on the A113 SoC:
-
-tdmif_a: audio-controller@0 {
-	compatible = "amlogic,axg-tdm-iface";
-	#sound-dai-cells = <0>;
-	clocks = <&clkc_audio AUD_CLKID_MST_A_MCLK>,
-		 <&clkc_audio AUD_CLKID_MST_A_SCLK>,
-		 <&clkc_audio AUD_CLKID_MST_A_LRCLK>;
-	clock-names = "mclk", "sclk", "lrclk";
-};
diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.yaml b/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.yaml
new file mode 100644
index 000000000000..5f04f9cf30a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-iface.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/amlogic,axg-tdm-iface.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Audio TDM Interfaces
+
+maintainers:
+  - Jerome Brunet <jbrunet@...libre.com>
+
+properties:
+  $nodename:
+    pattern: "^audio-controller-.*"
+
+  "#sound-dai-cells":
+    const: 0
+
+  compatible:
+    items:
+      - const: 'amlogic,axg-tdm-iface'
+
+  clocks:
+    minItems: 2
+    maxItems: 3
+    items:
+      - description: Bit clock
+      - description: Sample clock
+      - description: Master clock #optional
+
+  clock-names:
+    minItems: 2
+    maxItems: 3
+    items:
+      - const: sclk
+      - const: lrclk
+      - const: mclk
+
+required:
+  - "#sound-dai-cells"
+  - compatible
+  - clocks
+  - clock-names
+
+examples:
+  - |
+    #include <dt-bindings/clock/axg-audio-clkc.h>
+
+    tdmif_a: audio-controller-0 {
+        compatible = "amlogic,axg-tdm-iface";
+        #sound-dai-cells = <0>;
+        clocks = <&clkc_audio AUD_CLKID_MST_A_SCLK>,
+                 <&clkc_audio AUD_CLKID_MST_A_LRCLK>,
+                 <&clkc_audio AUD_CLKID_MST_A_MCLK>;
+        clock-names = "sclk", "lrclk", "mclk";
+    };
+
-- 
2.24.1