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Message-Id: <20230111134905.248305-2-herve.codina@bootlin.com>
Date: Wed, 11 Jan 2023 14:49:03 +0100
From: Herve Codina <herve.codina@...tlin.com>
To: Herve Codina <herve.codina@...tlin.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <brgl@...ev.pl>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc: alsa-devel@...a-project.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
Christophe Leroy <christophe.leroy@...roup.eu>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH 1/3] dt-bindings: sound: Add Renesas IDT821034 codec
The Renesas IDT821034 codec is a quad PCM codec with
programmable gain.
Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
.../bindings/sound/renesas,idt821034.yaml | 97 +++++++++++++++++++
1 file changed, 97 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..2c29b770e3f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/renesas,idt821034.yaml
@@ -0,0 +1,97 @@
+# 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@...tlin.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: /schemas/gpio/gpio.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'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ codec: idt821034@0 {
+ compatible = "renesas,idt821034";
+ reg = <0>;
+ spi-max-frequency = <8192000>;
+ spi-cpha;
+ #sound-dai-cells = <0>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
+ sound {
+ compatible = "simple-audio-card";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ simple-audio-card,dai-link@0 {
+ reg = <0>;
+ format = "dsp_b";
+ cpu {
+ sound-dai = <&cpu_dai>;
+ };
+ codec {
+ sound-dai = <&codec>;
+ dai-tdm-slot-num = <4>;
+ dai-tdm-slot-width = <8>;
+ /* TS 2, 3, 5, 7 */
+ dai-tdm-slot-tx-mask = <0 0 1 1 0 1 0 1>;
+ dai-tdm-slot-rx-mask = <0 0 1 1 0 1 0 1>;
+ };
+ };
+ };
--
2.38.1
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