[PATCH v4 1/2] ASoC: mediatek: dt-bindings: modify machine bindings for two MICs case

[Ajye Huang]

Add a property "dmic-gpios" for switching between two MICs.

Signed-off-by: Ajye Huang <ajye_huang at compal.corp-partner.google.com>
Change-Id: I5b59ac23e761fdc078a2227da14fe170c8df6388
---
 .../sound/mt8186-mt6366-rt1019-rt5682s.yaml         | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml b/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
index 4fc5b045d3cf..8c24cd1f1906 100644
--- a/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
+++ b/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
@@ -21,6 +21,13 @@ properties:
     $ref: "/schemas/types.yaml#/definitions/phandle"
     description: The phandle of MT8186 ASoC platform.
 
+  dmic-gpios:
+    maxItems: 1
+    description:
+      dmic-gpios optional prop for switching between two DMICs.
+      Ex, the GPIO can control a MUX HW component to select
+      dmic clk and data form a Front or Rear dmic.
+
   headset-codec:
     type: object
     additionalProperties: false
@@ -68,9 +75,13 @@ examples:
         compatible = "mediatek,mt8186-mt6366-rt1019-rt5682s-sound";
         mediatek,platform = <&afe>;
         pinctrl-names = "aud_clk_mosi_off",
-                        "aud_clk_mosi_on";
+                        "aud_clk_mosi_on",
+                        "aud_gpio_dmic_sec";
         pinctrl-0 = <&aud_clk_mosi_off>;
         pinctrl-1 = <&aud_clk_mosi_on>;
+        pinctrl-2 = <&aud_gpio_dmic_sec>;
+
+        dmic-gpios = <&pio 23 0>;
 
         headset-codec {
             sound-dai = <&rt5682s>;
-- 
2.25.1