Rob Herring 於 3/23/2024 2:25 AM 寫道: CAUTION - External Email: Do not click links or open attachments unless you acknowledge the sender and content. On Fri, Mar 22, 2024 at 10:54:04AM +0800, Seven Lee wrote: Add a DT schema for describing nau8325 audio amplifiers. The key features are as follows: - Low SPK_VDD Quiescent Current - Gain Setting with 2-wire interface - Powerful Stereo Class-D Amplifier - Low Output Noise - Low Current Shutdown Mode - Click-and Pop Suppression More resources : https://www.nuvoton.com/products/smart-home-audio/audio-amplifiers/class-d-series/nau8325yg/ Signed-off-by: Seven Lee <wtli@xxxxxxxxxxx><mailto:wtli@xxxxxxxxxxx> --- .../bindings/sound/nuvoton,nau8325.yaml | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml new file mode 100644 index 000000000000..6ded94c0e644 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/nuvoton,nau8325.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NAU8325 audio Amplifier + +maintainers: + - Seven Lee <WTLI@xxxxxxxxxxx><mailto:WTLI@xxxxxxxxxxx> + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + const: nuvoton,nau8325 + + reg: + maxItems: 1 + + nuvoton,vref-impedance: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The vref impedance to be used in kohms. Middle of voltage enables + Tie-Off selection options. Due to the high impedance of the VREF + pin, it is important to use a low-leakage capacitor. Possible + values are 0, 1, 2, and 3 as per the below, + + 0 = Disable tie off resistance + 1 = 25 kohms + 2 = 125 kohms + 3 = 2.5 kohms + enum: [ 0, 1, 2, 3 ] Once again, use standard unit suffix on the property name: nuvoton,vref-impedance-ohms: enum: [0, 2500, 25000, 125000] Rob I'm so Sorry, I made a mistake. So, I will modify it as follows, nuvoton,vref-impedance-ohms: description: The vref impedance to be used in ohms. Middle of voltage enables Tie-Off selection options. Due to the high impedance of the VREF pin, it is important to use a low-leakage capacitor. enum: [ 0, 25000, 125000, 2500 ] ________________________________ The privileged confidential information contained in this email is intended for use only by the addressees as indicated by the original sender of this email. If you are not the addressee indicated in this email or are not responsible for delivery of the email to such a person, please kindly reply to the sender indicating this fact and delete all copies of it from your computer and network server immediately. Your cooperation is highly appreciated. It is advised that any unauthorized use of confidential information of Nuvoton is strictly prohibited; and any information in this email irrelevant to the official business of Nuvoton shall be deemed as neither given nor endorsed by Nuvoton.
