ASoC: mediatek: mt8186: add audio afe document

Add mt8186 audio afe document.
Signed-off-by: NJiaxin Yu <jiaxin.yu@mediatek.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220718162204.26238-5-jiaxin.yu@mediatek.comSigned-off-by: NMark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mt8186-afe-pcm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek AFE PCM controller for mt8186
+
+maintainers:
+  - Jiaxin Yu <jiaxin.yu@mediatek.com>
+
+properties:
+  compatible:
+    const: mediatek,mt8186-sound
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: audiosys
+
+  mediatek,apmixedsys:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: The phandle of the mediatek apmixedsys controller
+
+  mediatek,infracfg:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: The phandle of the mediatek infracfg controller
+
+  mediatek,topckgen:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: The phandle of the mediatek topckgen controller
+
+  clocks:
+    items:
+      - description: audio infra sys clock
+      - description: audio infra 26M clock
+      - description: audio top mux
+      - description: audio intbus mux
+      - description: mainpll 136.5M clock
+      - description: faud1 mux
+      - description: apll1 clock
+      - description: faud2 mux
+      - description: apll2 clock
+      - description: audio engen1 mux
+      - description: apll1_d8 22.5792M clock
+      - description: audio engen2 mux
+      - description: apll2_d8 24.576M clock
+      - description: i2s0 mclk mux
+      - description: i2s1 mclk mux
+      - description: i2s2 mclk mux
+      - description: i2s4 mclk mux
+      - description: tdm mclk mux
+      - description: i2s0_mck divider
+      - description: i2s1_mck divider
+      - description: i2s2_mck divider
+      - description: i2s4_mck divider
+      - description: tdm_mck divider
+      - description: audio hires mux
+      - description: 26M clock
+
+  clock-names:
+    items:
+      - const: aud_infra_clk
+      - const: mtkaif_26m_clk
+      - const: top_mux_audio
+      - const: top_mux_audio_int
+      - const: top_mainpll_d2_d4
+      - const: top_mux_aud_1
+      - const: top_apll1_ck
+      - const: top_mux_aud_2
+      - const: top_apll2_ck
+      - const: top_mux_aud_eng1
+      - const: top_apll1_d8
+      - const: top_mux_aud_eng2
+      - const: top_apll2_d8
+      - const: top_i2s0_m_sel
+      - const: top_i2s1_m_sel
+      - const: top_i2s2_m_sel
+      - const: top_i2s4_m_sel
+      - const: top_tdm_m_sel
+      - const: top_apll12_div0
+      - const: top_apll12_div1
+      - const: top_apll12_div2
+      - const: top_apll12_div4
+      - const: top_apll12_div_tdm
+      - const: top_mux_audio_h
+      - const: top_clk26m_clk
+
+required:
+  - compatible
+  - interrupts
+  - resets
+  - reset-names
+  - mediatek,apmixedsys
+  - mediatek,infracfg
+  - mediatek,topckgen
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    afe: mt8186-afe-pcm@11210000 {
+        compatible = "mediatek,mt8186-sound";
+        reg = <0x11210000 0x2000>;
+        interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+        resets = <&watchdog 17>; //MT8186_TOPRGU_AUDIO_SW_RST
+        reset-names = "audiosys";
+        mediatek,apmixedsys = <&apmixedsys>;
+        mediatek,infracfg = <&infracfg>;
+        mediatek,topckgen = <&topckgen>;
+        clocks = <&infracfg_ao 44>, //CLK_INFRA_AO_AUDIO
+                 <&infracfg_ao 54>, //CLK_INFRA_AO_AUDIO_26M_BCLK
+                 <&topckgen 15>, //CLK_TOP_AUDIO
+                 <&topckgen 16>, //CLK_TOP_AUD_INTBUS
+                 <&topckgen 70>, //CLK_TOP_MAINPLL_D2_D4
+                 <&topckgen 17>, //CLK_TOP_AUD_1
+                 <&apmixedsys 12>, //CLK_APMIXED_APLL1
+                 <&topckgen 18>, //CLK_TOP_AUD_2
+                 <&apmixedsys 13>, //CLK_APMIXED_APLL2
+                 <&topckgen 19>, //CLK_TOP_AUD_ENGEN1
+                 <&topckgen 101>, //CLK_TOP_APLL1_D8
+                 <&topckgen 20>, //CLK_TOP_AUD_ENGEN2
+                 <&topckgen 104>, //CLK_TOP_APLL2_D8
+                 <&topckgen 63>, //CLK_TOP_APLL_I2S0_MCK_SEL
+                 <&topckgen 64>, //CLK_TOP_APLL_I2S1_MCK_SEL
+                 <&topckgen 65>, //CLK_TOP_APLL_I2S2_MCK_SEL
+                 <&topckgen 66>, //CLK_TOP_APLL_I2S4_MCK_SEL
+                 <&topckgen 67>, //CLK_TOP_APLL_TDMOUT_MCK_SEL
+                 <&topckgen 131>, //CLK_TOP_APLL12_CK_DIV0
+                 <&topckgen 132>, //CLK_TOP_APLL12_CK_DIV1
+                 <&topckgen 133>, //CLK_TOP_APLL12_CK_DIV2
+                 <&topckgen 134>, //CLK_TOP_APLL12_CK_DIV4
+                 <&topckgen 135>, //CLK_TOP_APLL12_CK_DIV_TDMOUT_M
+                 <&topckgen 44>, //CLK_TOP_AUDIO_H
+                 <&clk26m>;
+        clock-names = "aud_infra_clk",
+                      "mtkaif_26m_clk",
+                      "top_mux_audio",
+                      "top_mux_audio_int",
+                      "top_mainpll_d2_d4",
+                      "top_mux_aud_1",
+                      "top_apll1_ck",
+                      "top_mux_aud_2",
+                      "top_apll2_ck",
+                      "top_mux_aud_eng1",
+                      "top_apll1_d8",
+                      "top_mux_aud_eng2",
+                      "top_apll2_d8",
+                      "top_i2s0_m_sel",
+                      "top_i2s1_m_sel",
+                      "top_i2s2_m_sel",
+                      "top_i2s4_m_sel",
+                      "top_tdm_m_sel",
+                      "top_apll12_div0",
+                      "top_apll12_div1",
+                      "top_apll12_div2",
+                      "top_apll12_div4",
+                      "top_apll12_div_tdm",
+                      "top_mux_audio_h",
+                      "top_clk26m_clk";
+    };
+
+...