[PATCH v2 1/3] dt-bindings: sound: Add Renesas IDT821034 codec

Herve Codina
2023-01-20T09:50:55Z

The Renesas IDT821034 codec is a quad PCM codec with programmable
gain.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
.../bindings/sound/renesas,idt821034.yaml | 75 +++++++++++++++++++
1 file changed, 75 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/renesas,idt821034.yaml

diff --git a/Documentation/devicetree/bindings/sound/renesas,idt821034.yaml b/Documentation/devicetree/bindings/sound/renesas,idt821034.yaml
new file mode 100644
index 000000000000..10677d9d8f67
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/renesas,idt821034.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/renesas,idt821034.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas IDT821034 codec device
+
+maintainers:
+ - Herve Codina <herve.codina@bootlin.com>
+
+description: |
+ The IDT821034 codec is a four channel PCM codec with onchip filters and
+ programmable gain setting.
+
+ The time-slots used by the codec must be set and so, the properties
+ 'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and
+ 'dai-tdm-slot-rx-mask' must be present in the ALSA sound card node for
+ sub-nodes that involve the codec. The codec uses one 8bit time-slot per
+ channel.
+ 'dai-tdm-tdm-slot-with' must be set to 8.
+
+ The IDT821034 codec also supports 5 gpios (SLIC signals) per channel.
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+ - $ref: dai-common.yaml#
+
+properties:
+ compatible:
+ const: renesas,idt821034
+
+ reg:
+ description:
+ SPI device address.
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 8192000
+
+ spi-cpha: true
+
+ '#sound-dai-cells':
+ const: 0
+
+ '#gpio-cells':
+ const: 2
+
+ gpio-controller: true
+
+required:
+ - compatible
+ - reg
+ - spi-cpha
+ - '#sound-dai-cells'
+ - gpio-controller
+ - '#gpio-cells'
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ audio-codec@0 {
+ compatible = "renesas,idt821034";
+ reg = <0>;
+ spi-max-frequency = <8192000>;
+ spi-cpha;
+ #sound-dai-cells = <0>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
--
2.39.0