[PATCH 15/15] ASoC: dt-bindings: rockchip: i2s: Document property 'clk-trcm'

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This patch documents property 'rockchip,clk-trcm' which is used
to specify the lrck.

Signed-off-by: Sugar Zhang <sugar.zhang@xxxxxxxxxxxxxx>
Change-Id: I648142c57c568bbed209f2b9188b1f539a3285b2
---
 Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index 11e911a..8d9dfed 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -72,6 +72,15 @@ properties:
   resets:
     maxItems: 2
 
+  rockchip,clk-trcm:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+    description:
+      tx and rx lrck/bclk common use.
+      0: both tx_lrck/bclk and rx_lrck/bclk are used
+      1: only tx_lrck/bclk is used
+      2: only rx_lrck/bclk is used
+
   rockchip,capture-channels:
     $ref: /schemas/types.yaml#/definitions/uint32
     default: 2
-- 
2.7.4






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