[PATCH 01/12] dt-bindings: mfd: Add Cirrus Logic CS48L32 audio codec

Richard Fitzgerald
2022-11-09T16:55:31Z

The CS48L32 has multiple digital and analog audio I/O, a
high-performance low-power programmable audio DSP, and a variety of
power-efficient fixed-function audio processors, with digital
mixing and routing.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
.../bindings/mfd/cirrus,cs48l32.yaml | 166 ++++++++++++++++++
1 file changed, 166 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/cirrus,cs48l32.yaml

diff --git a/Documentation/devicetree/bindings/mfd/cirrus,cs48l32.yaml b/Documentation/devicetree/bindings/mfd/cirrus,cs48l32.yaml
new file mode 100644
index 000000000000..d128600c0b72
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/cirrus,cs48l32.yaml
@@ -0,0 +1,166 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/cirrus,cs48l32.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS48L32 audio CODECs Multi-Functional Device
+
+maintainers:
+ - patches@opensource.cirrus.com
+
+description: |
+ The CS48L32 is an audio SoC with extensive digital capabilities
+ and a range of digital and analogue I/O.
+
+ See also the child driver bindings in:
+
+ bindings/pinctrl/cirrus,cs48l32.yaml
+ bindings/regulator/wlf,arizona.yaml
+ bindings/sound/cirrus,cs48l32.yaml
+
+allOf:
+ - $ref: /schemas/pinctrl/cirrus,cs48l32.yaml#
+ - $ref: /schemas/regulator/wlf,arizona.yaml#
+ - $ref: /schemas/sound/cirrus,cs48l32.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ enum:
+ - cirrus,cs48l31
+ - cirrus,cs48l32
+ - cirrus,cs48l33
+
+ reg:
+ maxItems: 1
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ description:
+ The first cell is the pin number. The second cell is reserved for
+ future use and must be zero
+ const: 2
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ description:
+ The first cell is the IRQ number.
+ The second cell is the flags, encoded as the trigger masks from
+ bindings/interrupt-controller/interrupts.txt
+ const: 2
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ description:
+ One entry specifying the GPIO controlling /RESET. As defined in
+ bindings/gpio.txt. Although optional, it is strongly recommended
+ to use a hardware reset.
+ maxItems: 1
+
+ clocks:
+ description:
+ Should reference the clocks supplied on MCLK1
+ minItems: 1
+ maxItems: 1
+
+ clock-names:
+ description: |
+ Must be "mclk1"
+ const: mclk1
+
+ VDD_A-supply:
+ description:
+ Analogue power supply.
+
+ VDD_D-supply:
+ description:
+ Digital core power supply.
+
+ VDD_IO-supply:
+ description:
+ Digital buffer (I/O) supply.
+
+ VDD_CP-supply:
+ description:
+ Charge pump power supply.
+
+ VOUT_MIC-supply:
+ description:
+ Microphone power supply, normally supplied internally.
+
+ pinctrl-0:
+ description:
+ A phandle to the node containing the subnodes containing pinctrl
+ configurations.
+
+ pinctrl-1:
+ description:
+ A phandle to the node containing the subnodes containing pinctrl
+ configurations.
+
+ pinctrl-names:
+ items:
+ - const: init
+ - const: default
+
+required:
+ - compatible
+ - interrupt-parent
+ - interrupts
+ - VDD_A-supply
+ - VDD_D-supply
+ - VDD_IO-supply
+ - VDD_CP-supply
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/sound/cs48l32.h>
+ &spi1 {
+ cs48l32: cs48l32@1 {
+ compatible = "cirrus,cs48l32";
+ reg = <0x1>;
+
+ spi-max-frequency = <25000000>;
+
+ interrupts = <56 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio0>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ #sound-dai-cells = <1>;
+
+ VDD_A-supply = <&regulator_1v8>;
+ VDD_D-supply = <&lochnagar_1v2>;
+ VDD_IO-supply = <&regulator_1v8>;
+ VDD_CP-supply = <&regulator_1v8>;
+
+ reset-gpios = <&gpio 0 0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&cs48l32_defaults>;
+
+ cs48l32_pinctrl: pinctrl {
+ compatible = "cirrus,cs48l32-pinctrl";
+
+ cs48l32_defaults: defaults {
+ asp1 {
+ groups = "asp1";
+ function = "asp1";
+ bias-bus-hold;
+ };
+ asp2 {
+ groups = "asp2";
+ function = "asp2";
+ bias-bus-hold;
+ };
+ };
+ };
+ };
--
2.30.2