Mailing List Archive

Add MT8365 audio front-end bindings

Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
---
.../bindings/sound/mediatek,mt8365-afe.yaml | 130 +++++++++++++++++++++
1 file changed, 130 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8365-afe.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8365-afe.yaml
new file mode 100644
index 000000000000..45ad56d37234
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mediatek,mt8365-afe.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mediatek,mt8365-afe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Audio Front End PCM controller for MT8365
+
+maintainers:
+ - Alexandre Mergnat <amergnat@baylibre.com>
+
+properties:
+ compatible:
+ const: mediatek,mt8365-afe-pcm
+
+ reg:
+ maxItems: 1
+
+ "#sound-dai-cells":
+ const: 0
+
+ clocks:
+ items:
+ - description: 26M clock
+ - description: mux for audio clock
+ - description: audio i2s0 mck
+ - description: audio i2s1 mck
+ - description: audio i2s2 mck
+ - description: audio i2s3 mck
+ - description: engen 1 clock
+ - description: engen 2 clock
+ - description: audio 1 clock
+ - description: audio 2 clock
+ - description: mux for i2s0
+ - description: mux for i2s1
+ - description: mux for i2s2
+ - description: mux for i2s3
+
+ clock-names:
+ items:
+ - const: top_clk26m_clk
+ - const: top_audio_sel
+ - const: audio_i2s0_m
+ - const: audio_i2s1_m
+ - const: audio_i2s2_m
+ - const: audio_i2s3_m
+ - const: engen1
+ - const: engen2
+ - const: aud1
+ - const: aud2
+ - const: i2s0_m_sel
+ - const: i2s1_m_sel
+ - const: i2s2_m_sel
+ - const: i2s3_m_sel
+
+ interrupts:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ mediatek,dmic-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Indicates how many data pins are used to transmit two channels of PDM
+ signal. 1 means two wires, 0 means one wire. Default value is 0.
+ enum:
+ - 0 # one wire
+ - 1 # two wires
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mediatek,mt8365-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/power/mediatek,mt8365-power.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ audio-controller@11220000 {
+ compatible = "mediatek,mt8365-afe-pcm";
+ reg = <0 0x11220000 0 0x1000>;
+ #sound-dai-cells = <0>;
+ clocks = <&clk26m>,
+ <&topckgen CLK_TOP_AUDIO_SEL>,
+ <&topckgen CLK_TOP_AUD_I2S0_M>,
+ <&topckgen CLK_TOP_AUD_I2S1_M>,
+ <&topckgen CLK_TOP_AUD_I2S2_M>,
+ <&topckgen CLK_TOP_AUD_I2S3_M>,
+ <&topckgen CLK_TOP_AUD_ENGEN1_SEL>,
+ <&topckgen CLK_TOP_AUD_ENGEN2_SEL>,
+ <&topckgen CLK_TOP_AUD_1_SEL>,
+ <&topckgen CLK_TOP_AUD_2_SEL>,
+ <&topckgen CLK_TOP_APLL_I2S0_SEL>,
+ <&topckgen CLK_TOP_APLL_I2S1_SEL>,
+ <&topckgen CLK_TOP_APLL_I2S2_SEL>,
+ <&topckgen CLK_TOP_APLL_I2S3_SEL>;
+ clock-names = "top_clk26m_clk",
+ "top_audio_sel",
+ "audio_i2s0_m",
+ "audio_i2s1_m",
+ "audio_i2s2_m",
+ "audio_i2s3_m",
+ "engen1",
+ "engen2",
+ "aud1",
+ "aud2",
+ "i2s0_m_sel",
+ "i2s1_m_sel",
+ "i2s2_m_sel",
+ "i2s3_m_sel";
+ interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&spm MT8365_POWER_DOMAIN_AUDIO>;
+ mediatek,dmic-mode = <1>;
+ };
+ };
+
+...

--
2.25.1