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Message-Id: <20250703035639.7252-4-nick.li@foursemi.com>
Date: Thu, 3 Jul 2025 11:56:38 +0800
From: Nick <nick.li@...rsemi.com>
To: lgirdwood@...il.com,
broonie@...nel.org,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
perex@...ex.cz,
tiwai@...e.com,
nick.li@...rsemi.com
Cc: like.sin@...il.com,
xiaoming.yang@...rsemi.com,
danyang.zheng@...rsemi.com,
linux-sound@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v1 3/4] ASoC: dt-bindings: Add dt bindings for FS2104/5S audio amplifiers
From: Nick Li <nick.li@...rsemi.com>
This patch adds bindings for FourSemi FS2104/5S audio amplifiers
which can support both I2S and I2C interface.
Signed-off-by: Nick Li <nick.li@...rsemi.com>
---
.../bindings/sound/foursemi,fs210x.yaml | 95 +++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/foursemi,fs210x.yaml
diff --git a/Documentation/devicetree/bindings/sound/foursemi,fs210x.yaml b/Documentation/devicetree/bindings/sound/foursemi,fs210x.yaml
new file mode 100644
index 000000000..3a1aba9b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/foursemi,fs210x.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/foursemi,fs210x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: FourSemi FS2104/5S Digital Audio Amplifier
+
+maintainers:
+ - Nick <nick.li@...rsemi.com>
+
+description: |
+ The FS2104 is a 15W Inductor-Less, Stereo, Closed-Loop,
+ Digital Input Class-D Power Amplifier with Enhanced Signal Processing.
+ The FS2105S is a 30W Inductor-Less, Stereo, Closed-Loop,
+ Digital Input Class-D Power Amplifier with Enhanced Signal Processing.
+
+properties:
+ compatible:
+ enum:
+ - foursemi,fs2104
+ - foursemi,fs2105s
+
+ reg:
+ maxItems: 1
+ description: |
+ I2C address of the amplifier. Refer to datasheet for possible values:
+ 0x68/0x69/0x6A/0x6B
+
+ clocks:
+ items:
+ - description: The clock of I2S BCLK
+
+ clock-names:
+ items:
+ - const: bclk
+
+ '#sound-dai-cells':
+ const: 0
+
+ pvdd-supply:
+ description: |
+ Regulator for power supply(PVDD in datasheet).
+
+ dvdd-supply:
+ description: |
+ Regulator for digital supply(DVDD in datasheet).
+
+ sdz-gpios:
+ maxItems: 1
+ description: |
+ SDZ(Shut Down) pin is active low, it will power down the chip,
+ and then reset the chip to shut down state.
+
+ fs,fwm-name:
+ description: |
+ The name of firmware that should be loaded for this
+ instance. The firmware is gernerated by FourSemi's tuning tool.
+ $ref: /schemas/types.yaml#/definitions/string
+
+ fs,dai-name:
+ description: |
+ The name of FS210x DAI, it can be set different name when
+ there are multiple FS210x devices in the system.
+ $ref: /schemas/types.yaml#/definitions/string
+
+required:
+ - compatible
+ - reg
+ - sdz-gpios
+ - fs,fwm-name
+ - '#sound-dai-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ audio-codec@68 {
+ compatible = "foursemi,fs2105s";
+ reg = <0x68>;
+ pvdd-supply = <&pvdd_supply>;
+ dvdd-supply = <&dvdd_supply>;
+ sdz-gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&fs210x_pins_default>;
+ fs,fwm-name = "fs2105s-btl-2p0-0s.bin";
+ clocks = <&clocks 18>;
+ clock-names = "bclk";
+ #sound-dai-cells = <0>;
+ };
+ };
--
2.39.5
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