Squashed 'dts/upstream/' content from commit aaba2d45dc2a
git-subtree-dir: dts/upstream
git-subtree-split: aaba2d45dc2a1b3bbb710f2a3808ee1c9f340abe
diff --git a/Bindings/sound/nuvoton,nau8825.yaml b/Bindings/sound/nuvoton,nau8825.yaml
new file mode 100644
index 0000000..a54f194
--- /dev/null
+++ b/Bindings/sound/nuvoton,nau8825.yaml
@@ -0,0 +1,239 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nuvoton,nau8825.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NAU8825 audio CODEC
+
+maintainers:
+ - John Hsu <KCHSU0@nuvoton.com>
+
+allOf:
+ - $ref: dai-common.yaml#
+
+properties:
+ compatible:
+ enum:
+ - nuvoton,nau8825
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ nuvoton,jkdet-enable:
+ description:
+ Enable jack detection via JKDET pin.
+ type: boolean
+
+ nuvoton,jkdet-pull-enable:
+ description:
+ Enable JKDET pin pull.
+ If set - pin pull enabled, otherwise pin in high impedance state.
+ type: boolean
+
+ nuvoton,jkdet-pull-up:
+ description:
+ Pull-up JKDET pin.
+ If set then JKDET pin is pull up, otherwise pull down.
+ type: boolean
+
+ nuvoton,jkdet-polarity:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ JKDET pin polarity.
+ enum:
+ - 0 # active high
+ - 1 # active low
+ default: 1
+
+ nuvoton,vref-impedance:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ VREF Impedance selection.
+ enum:
+ - 0 # Open
+ - 1 # 25 kOhm
+ - 2 # 125 kOhm
+ - 3 # 2.5 kOhm
+ default: 2
+
+ nuvoton,micbias-voltage:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Micbias voltage level.
+ enum:
+ - 0 # VDDA
+ - 1 # VDDA
+ - 2 # VDDA * 1.1
+ - 3 # VDDA * 1.2
+ - 4 # VDDA * 1.3
+ - 5 # VDDA * 1.4
+ - 6 # VDDA * 1.53
+ - 7 # VDDA * 1.53
+ default: 6
+
+ nuvoton,sar-threshold-num:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Number of buttons supported.
+ minimum: 1
+ maximum: 4
+ default: 4
+
+ nuvoton,sar-threshold:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description:
+ Impedance threshold for each button. Array that contains up to 8 buttons
+ configuration. SAR value is calculated as
+ SAR = 255 * MICBIAS / SAR_VOLTAGE * R / (2000 + R) where MICBIAS is
+ configured by 'nuvoton,micbias-voltage', SAR_VOLTAGE is configured by
+ 'nuvoton,sar-voltage', R - button impedance.
+ Refer datasheet section 10.2 for more information about threshold
+ calculation.
+ minItems: 1
+ maxItems: 4
+ items:
+ minimum: 0
+ maximum: 255
+
+ nuvoton,sar-hysteresis:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Button impedance measurement hysteresis.
+ default: 0
+
+ nuvoton,sar-voltage:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Reference voltage for button impedance measurement.
+ enum:
+ - 0 # VDDA
+ - 1 # VDDA
+ - 2 # VDDA * 1.1
+ - 3 # VDDA * 1.2
+ - 4 # VDDA * 1.3
+ - 5 # VDDA * 1.4
+ - 6 # VDDA * 1.53
+ - 7 # VDDA * 1.53
+ default: 6
+
+ nuvoton,sar-compare-time:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ SAR compare time.
+ enum:
+ - 0 # 500 ns
+ - 1 # 1 us
+ - 2 # 2 us
+ - 3 # 4 us
+ default: 1
+
+ nuvoton,sar-sampling-time:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ SAR sampling time.
+ enum:
+ - 0 # 2 us
+ - 1 # 4 us
+ - 2 # 8 us
+ - 3 # 16 us
+ default: 1
+
+ nuvoton,short-key-debounce:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Button short key press debounce time.
+ enum:
+ - 0 # 30 ms
+ - 1 # 50 ms
+ - 2 # 100 ms
+ - 3 # 30 ms
+ default: 3
+
+ nuvoton,jack-insert-debounce:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ number from 0 to 7 that sets debounce time to 2^(n+2) ms.
+ maximum: 7
+ default: 7
+
+ nuvoton,jack-eject-debounce:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ number from 0 to 7 that sets debounce time to 2^(n+2) ms
+ maximum: 7
+ default: 0
+
+ nuvoton,crosstalk-enable:
+ description:
+ make crosstalk function enable if set.
+ type: boolean
+
+ nuvoton,adcout-drive-strong:
+ description:
+ make the drive strength of ADCOUT IO PIN strong if set.
+ Otherwise, the drive keeps normal strength.
+ type: boolean
+
+ nuvoton,adc-delay-ms:
+ description:
+ Delay (in ms) to make input path stable and avoid pop noise.
+ The default value is 125 and range between 125 to 500 ms.
+ minimum: 125
+ maximum: 500
+ default: 125
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: mclk
+
+ '#sound-dai-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ codec@1a {
+ #sound-dai-cells = <0>;
+ compatible = "nuvoton,nau8825";
+ reg = <0x1a>;
+ interrupt-parent = <&gpio>;
+ interrupts = <38 IRQ_TYPE_LEVEL_LOW>;
+ nuvoton,jkdet-enable;
+ nuvoton,jkdet-pull-enable;
+ nuvoton,jkdet-pull-up;
+ nuvoton,jkdet-polarity = <GPIO_ACTIVE_LOW>;
+ nuvoton,vref-impedance = <2>;
+ nuvoton,micbias-voltage = <6>;
+ // Setup 4 buttons impedance according to Android specification
+ nuvoton,sar-threshold-num = <4>;
+ nuvoton,sar-threshold = <0xc 0x1e 0x38 0x60>;
+ nuvoton,sar-hysteresis = <1>;
+ nuvoton,sar-voltage = <0>;
+ nuvoton,sar-compare-time = <0>;
+ nuvoton,sar-sampling-time = <0>;
+ nuvoton,short-key-debounce = <2>;
+ nuvoton,jack-insert-debounce = <7>;
+ nuvoton,jack-eject-debounce = <7>;
+ nuvoton,crosstalk-enable;
+
+ clock-names = "mclk";
+ clocks = <&tegra_pmc 1>;
+ };
+ };