ASoC: mt6359: add ASoC mt6359 ASoC accdet jack document

This patch adds MediaTek MT6359 ASoC accdet jack document.
Signed-off-by: NArgus Lin <argus.lin@mediatek.com>
Link: https://lore.kernel.org/r/1615383186-18500-2-git-send-email-argus.lin@mediatek.comSigned-off-by: NMark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/mt6359-accdet.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mt6359-accdet.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Technologies Inc. MT6359 ASoC accdet jack driver bindings
+
+maintainers:
+  - Chipeng Chang <chipeng.chang@mediatek.com>
+
+description: |
+  This binding describes the Mediatek Technologies MT6359 ASoC
+  accdet jack driver.
+
+properties:
+  mediatek,accdet-name:
+    maxItems: 1
+    description: named as "mt6359-accdet" jack.
+
+  mediatek,mic-vol:
+    maxItems: 1
+    description: |
+      accdet micbias1 voltage.
+
+      enum:
+        - 0x00 # 1.7v - micbias1 volage is 1.7v.
+        - 0x01 # 1.8v - micbias1 volage is 1.8v.
+        - 0x02 # 1.9v - micbias1 volage is 1.9v.
+        - 0x03 # 2.0v - micbias1 volage is 2.0v.
+        - 0x04 # 2.1v - micbias1 volage is 2.1v.
+        - 0x05 # 2.5v - micbias1 volage is 2.5v.
+        - 0x06 # 2.6v - micbias1 volage is 2.6v.
+        - 0x07 # 2.7v - micbias1 volage is 2.7v.
+        - 0x08 # 2.8v - micbias1 volage is 2.8v.
+        - 0x09 # 2.85v - micbias1 volage is 2.85v.
+
+  mediatek,mic-mode:
+    maxItems: 1
+    description: |
+      value as 1, 2, 6 to indicate ACC/DCC mode. default is DCC mode 2.
+
+      enum:
+        - 0x01 # ACC - ACC mode.
+        - 0x02 # DCC - low cost without in bias.
+        - 0x06 # DCC - low cost with in bias.
+
+  mediatek,pwm-deb-setting:
+    maxItems: 15
+    description: |
+       headset-mode-setting : Indicates customized pwm, debounce setting
+       accdet pwm_width, pwm_thresh, fall_delay, rise_delay
+       debounce0, debounce1, debounce3, debounce4
+       eint pwm_width, eint pwm_thresh
+       eint deb(debounce0, debounce1, debounce2, debounce3), inv_debounce.
+
+  mediatek,eint-use-ap:
+    maxItems: 1
+    description: |
+      indicates to use ap gpio.
+
+      enum:
+        - 0x00 # MT6359 eint detection mode.
+        - 0x01 # SoC GPIO detection mode.
+
+  mediatek,eint-detect-mode:
+    maxItems: 1
+    description: |
+      indicates to use ap gpio.
+
+      enum:
+        - 0x00 # detection mode with higher detection power.
+        - 0x01 # detection mode with lower detection power.
+        - 0x02 # detection mode with sw moisture detection mode.
+        - 0x03 # detection mode with hw moisture detection mode1.
+        - 0x04 # detection mode with hw moisture detection mode2.
+
+  mediatek,eint-num:
+    maxItems: 1
+    description: |
+      incicates pmic eint usage.
+
+      enum:
+        - 0x0 # PMIC_EINT0 - use pmic eint0 to trigger plug interrupt.
+        - 0x1 # PMIC_EINT1 - use pmic eint1 to trigger plug interrupt.
+        - 0x2 # PMIC_BI_EINT - use pmic eint0/1 to trigger plug interrupt.
+
+  mediatek,eint-trig-mode:
+    maxItems: 1
+    description: |
+      incicates pmic eint trigger mode.
+
+      enum:
+        - 0x0 # PMIC_GPIO - use pmic gpio to detect plug status.
+        - 0x1 # PMIC_INVERTER - use pmic inverter to detect plug status.
+
+  mediatek,eint-use-ext-res:
+    maxItems: 1
+    description: |
+      select HP_EINT pull up resistance, default 0 use internal resistance.
+
+      enum:
+        - 0x0 # use internal resistor.
+        - 0x1 # use external resistor.
+
+  mediatek,eint-comp-vth:
+    maxItems: 1
+    description: |
+      indicates comparator detection voltage.
+
+      enum:
+        - 0x00 # 2.8v.
+        - 0x01 # 2.4v.
+        - 0x02 # 2.0v.
+        - 0x03 # 0.7v.
+
+  mediatek,key-mode:
+    maxItems: 1
+    description: |
+      incicates key mode type.
+
+      enum:
+        - 0x0 # THREE_KEY - support 3-key key mode.
+        - 0x1 # FOUR_KEY - support 4-key key mode.
+        - 0x2 # TRI_KEY_CDD - support 3-key google CDD key mode.
+
+  mediatek,three-key-thr:
+    maxItems: 4
+    description: |
+      3 key device detection threshold: 0--MD_MAX--UP_MAX--DW_MAX.
+
+  mediatek,tri-key-cdd-thr:
+    maxItems: 4
+    description: |
+      3 key CDD device detection threshold: 0--MD_MAX--UP_MAX--DW_MAX.
+
+  mediatek,four-key-thr:
+    maxItems: 4
+    description: |
+      4 key device detection threshold: 0--MD_MAX--VOICE_MAX--UP_MAX--DW_MAX.
+
+additionalProperties: false
+
+examples:
+  - |
+    accdet: accdet {
+        mediatek,accdet-name = "mt6359-accdet";
+        mediatek,mic-vol = <8>;
+        mediatek,mic-mode = <2>;
+        mediatek,pwm-deb-setting = <0x500 0x500 1 0x1f0
+                                    0x800 0x800 0x20 0x44
+                                    0x4 0x1
+                                    0x5 0x3 0x3 0x5 0xe>;
+        mediatek,eint-use-ap = <0>;
+        mediatek,eint-detect-mode = <4>;
+        mediatek,eint-num = <0>;
+        mediatek,eint-trig-mode = <1>;
+        mediatek,eint-use-ext-res = <0>;
+        mediatek,eint-comp-vth = <2>;
+        mediatek,key-mode = <0>;
+        mediatek,three-key-thr = <0 80 220 400>;
+        status = "okay";
+    };
+...