Add devicetree binding for the Microsemi ZL38060 Connected Home Audio Processor. Signed-off-by: Sven Van Asbroeck <TheSven73@xxxxxxxxx> --- 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@xxxxxxxx> + - Takashi Iwai <tiwai@xxxxxxxx> + +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
