ASoC: dt-bindings: mediatek,mt8188-afe: add audio afe document

Add mt8188 audio afe document.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230116034131.23943-11-trevor.wu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/mediatek,mt8188-afe.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mediatek,mt8188-afe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek AFE PCM controller for mt8188
+
+maintainers:
+  - Trevor Wu <trevor.wu@mediatek.com>
+
+properties:
+  compatible:
+    const: mediatek,mt8188-afe
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: audiosys
+
+  mediatek,topckgen:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: The phandle of the mediatek topckgen controller
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: 26M clock
+      - description: audio pll1 clock
+      - description: audio pll2 clock
+      - description: clock divider for i2si1_mck
+      - description: clock divider for i2si2_mck
+      - description: clock divider for i2so1_mck
+      - description: clock divider for i2so2_mck
+      - description: clock divider for dptx_mck
+      - description: a1sys hoping clock
+      - description: audio intbus clock
+      - description: audio hires clock
+      - description: audio local bus clock
+      - description: mux for dptx_mck
+      - description: mux for i2so1_mck
+      - description: mux for i2so2_mck
+      - description: mux for i2si1_mck
+      - description: mux for i2si2_mck
+      - description: audio 26m clock
+
+  clock-names:
+    items:
+      - const: clk26m
+      - const: apll1
+      - const: apll2
+      - const: apll12_div0
+      - const: apll12_div1
+      - const: apll12_div2
+      - const: apll12_div3
+      - const: apll12_div9
+      - const: a1sys_hp_sel
+      - const: aud_intbus_sel
+      - const: audio_h_sel
+      - const: audio_local_bus_sel
+      - const: dptx_m_sel
+      - const: i2so1_m_sel
+      - const: i2so2_m_sel
+      - const: i2si1_m_sel
+      - const: i2si2_m_sel
+      - const: adsp_audio_26m
+
+  mediatek,etdm-in1-cowork-source:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      etdm modules can share the same external clock pin. Specify
+      which etdm clock source is required by this etdm in module.
+    enum:
+      - 1 # etdm2_in
+      - 2 # etdm1_out
+      - 3 # etdm2_out
+
+  mediatek,etdm-in2-cowork-source:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      etdm modules can share the same external clock pin. Specify
+      which etdm clock source is required by this etdm in module.
+    enum:
+      - 0 # etdm1_in
+      - 2 # etdm1_out
+      - 3 # etdm2_out
+
+  mediatek,etdm-out1-cowork-source:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      etdm modules can share the same external clock pin. Specify
+      which etdm clock source is required by this etdm out module.
+    enum:
+      - 0 # etdm1_in
+      - 1 # etdm2_in
+      - 3 # etdm2_out
+
+  mediatek,etdm-out2-cowork-source:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      etdm modules can share the same external clock pin. Specify
+      which etdm clock source is required by this etdm out module.
+    enum:
+      - 0 # etdm1_in
+      - 1 # etdm2_in
+      - 2 # etdm1_out
+
+patternProperties:
+  "^mediatek,etdm-in[1-2]-chn-disabled$":
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+    minItems: 1
+    maxItems: 16
+    description:
+      This is a list of channel IDs which should be disabled.
+      By default, all data received from ETDM pins will be outputed to
+      memory. etdm in supports disable_out in direct mode(w/o interconn),
+      so user can disable the specified channels by the property.
+    uniqueItems: true
+    items:
+      minimum: 0
+      maximum: 15
+
+  "^mediatek,etdm-in[1-2]-multi-pin-mode$":
+    type: boolean
+    description: if present, the etdm data mode is I2S.
+
+  "^mediatek,etdm-out[1-3]-multi-pin-mode$":
+    type: boolean
+    description: if present, the etdm data mode is I2S.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - resets
+  - reset-names
+  - mediatek,topckgen
+  - power-domains
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    afe@10b10000 {
+        compatible = "mediatek,mt8188-afe";
+        reg = <0x10b10000 0x10000>;
+        interrupts = <GIC_SPI 822 IRQ_TYPE_LEVEL_HIGH 0>;
+        resets = <&watchdog 14>;
+        reset-names = "audiosys";
+        mediatek,topckgen = <&topckgen>;
+        power-domains = <&spm 13>; //MT8188_POWER_DOMAIN_AUDIO
+        mediatek,etdm-in2-cowork-source = <2>;
+        mediatek,etdm-out2-cowork-source = <0>;
+        mediatek,etdm-in1-multi-pin-mode;
+        mediatek,etdm-in1-chn-disabled = /bits/ 8 <0x0 0x2>;
+        clocks = <&clk26m>,
+                 <&apmixedsys 9>, //CLK_APMIXED_APLL1
+                 <&apmixedsys 10>, //CLK_APMIXED_APLL2
+                 <&topckgen 186>, //CLK_TOP_APLL12_CK_DIV0
+                 <&topckgen 187>, //CLK_TOP_APLL12_CK_DIV1
+                 <&topckgen 188>, //CLK_TOP_APLL12_CK_DIV2
+                 <&topckgen 189>, //CLK_TOP_APLL12_CK_DIV3
+                 <&topckgen 191>, //CLK_TOP_APLL12_CK_DIV9
+                 <&topckgen 83>, //CLK_TOP_A1SYS_HP
+                 <&topckgen 31>, //CLK_TOP_AUD_INTBUS
+                 <&topckgen 32>, //CLK_TOP_AUDIO_H
+                 <&topckgen 69>, //CLK_TOP_AUDIO_LOCAL_BUS
+                 <&topckgen 81>, //CLK_TOP_DPTX
+                 <&topckgen 77>, //CLK_TOP_I2SO1
+                 <&topckgen 78>, //CLK_TOP_I2SO2
+                 <&topckgen 79>, //CLK_TOP_I2SI1
+                 <&topckgen 80>, //CLK_TOP_I2SI2
+                 <&adsp_audio26m 0>; //CLK_AUDIODSP_AUDIO26M
+        clock-names = "clk26m",
+                      "apll1",
+                      "apll2",
+                      "apll12_div0",
+                      "apll12_div1",
+                      "apll12_div2",
+                      "apll12_div3",
+                      "apll12_div9",
+                      "a1sys_hp_sel",
+                      "aud_intbus_sel",
+                      "audio_h_sel",
+                      "audio_local_bus_sel",
+                      "dptx_m_sel",
+                      "i2so1_m_sel",
+                      "i2so2_m_sel",
+                      "i2si1_m_sel",
+                      "i2si2_m_sel",
+                      "adsp_audio_26m";
+    };
+
+...