[PATCH v1 1/2] ASoC: dt-bindings: Document FM34NE DSP
From: Svyatoslav Ryhel
Date: Tue Oct 13 2026 - 17:03:36 EST
Document the FM34NE DSP based voice processor used in the ASUS Transformer
devices.
Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
---
.../bindings/sound/asus,tf201-dsp.yaml | 80 +++++++++++++++++++
1 file changed, 80 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/asus,tf201-dsp.yaml
diff --git a/Documentation/devicetree/bindings/sound/asus,tf201-dsp.yaml b/Documentation/devicetree/bindings/sound/asus,tf201-dsp.yaml
new file mode 100644
index 0000000000000..6b1c478bd03cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/asus,tf201-dsp.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/asus,tf201-dsp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Fortemedia FM34NE based voice processor
+
+description:
+ Fortemedia FM34NE is a hardware voice processor (DSP — Digital Signal
+ Processor) designed by Fortemedia. It specializes in real-time audio
+ processing, focusing on noise suppression and echo cancellation.
+
+maintainers:
+ - Svyatoslav Ryhel <clamor95@xxxxxxxxx>
+
+allOf:
+ - $ref: dai-common.yaml#
+
+properties:
+ compatible:
+ enum:
+ - asus,sl101-dsp
+ - asus,tf101-dsp
+ - asus,tf201-dsp
+ - asus,tf300t-dsp
+ - asus,tf700t-dsp
+ - pegatron,chagall-dsp
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Master clock to the DSP
+
+ reset-gpios:
+ maxItems: 1
+
+ bypass-gpios:
+ maxItems: 1
+ description: Signal that switches DSP into programming mode.
+
+ vdd-supply: true
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ port:
+ $ref: audio-graph-port.yaml#
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - bypass-gpios
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ codec@60 {
+ compatible = "asus,tf201-dsp";
+ reg = <0x60>;
+
+ clocks = <&fn34ne_clk>;
+
+ bypass-gpios = <&gpio 222 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 115 GPIO_ACTIVE_LOW>;
+
+ vdd-supply = <&vdd_1v8_dsp>;
+ };
+ };
+...
--
2.53.0