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Subject[PATCH v1 1/2] dt-bindings: sound: add Microsemi ZL38060 binding
Date
Add devicetree binding for the Microsemi ZL38060 Connected
Home Audio Processor.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
---

Tree: v5.7-rc1

.../devicetree/bindings/sound/zl38060.yaml | 90 +++++++++++++++++++
1 file changed, 90 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/zl38060.yaml

diff --git a/Documentation/devicetree/bindings/sound/zl38060.yaml b/Documentation/devicetree/bindings/sound/zl38060.yaml
new file mode 100644
index 000000000000..8e1976bee76b
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/zl38060.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/zl38060.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ZL38060 Connected Home Audio Processor from Microsemi.
+
+description: |
+ The ZL38060 is a "Connected Home Audio Processor" from Microsemi,
+ which consists of a Digital Signal Processor (DSP), several Digital
+ Audio Interfaces (DAIs), analog outputs, and a block of 14 GPIOs.
+
+maintainers:
+ - Jaroslav Kysela <perex@perex.cz>
+ - Takashi Iwai <tiwai@suse.com>
+
+properties:
+ compatible:
+ const: mscc,zl38060
+
+ reg:
+ description:
+ SPI device address.
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 24000000
+
+ reset-gpios:
+ description:
+ A GPIO line handling reset of the chip. As the line is active low,
+ it should be marked GPIO_ACTIVE_LOW (see ../gpio/gpio.txt)
+ maxItems: 1
+
+ mscc,load-firmware:
+ description:
+ If present, the driver will attempt to load firmware into the chip via
+ the SPI interface.
+ type: boolean
+
+ '#gpio-cells':
+ const: 2
+
+ gpio-controller: true
+
+ '#sound-dai-cells':
+ const: 0
+
+ amp-en-gpios:
+ description:
+ An optional GPIO line which is active when the codec is playing back
+ audio. Can be used to control an external amplifier.
+ maxItems: 1
+
+ mscc,amp-startup-delay-ms:
+ description:
+ An optional delay between amp-en-gpio becoming active, and the start
+ of audio playback. In milliseconds.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - reg
+ - '#gpio-cells'
+ - gpio-controller
+ - '#sound-dai-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ codec: zl38060@0 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ #sound-dai-cells = <0>;
+ compatible = "mscc,zl38060";
+ reg = <0>;
+ spi-max-frequency = <12000000>;
+ reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+ amp-en-gpios = <&codec 3 GPIO_ACTIVE_HIGH>;
+ mscc,amp-startup-delay-ms = <12>;
+ mscc,load-firmware;
+ };
+ };
--
2.17.1
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