[PATCH 7/9] dt-bindings: spi: mtk-snfi: add two timing delay property

[Xiangsheng Hou]

add rx-sample-delay and rx-latch-latency property.

Signed-off-by: Xiangsheng Hou <xiangsheng.hou at mediatek.com>
---
 .../bindings/spi/mediatek,spi-mtk-snfi.yaml      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml
index ee20075cd0e7..367862688e92 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml
@@ -55,6 +55,22 @@ properties:
     description: device-tree node of the accompanying ECC engine.
     $ref: /schemas/types.yaml#/definitions/phandle
 
+  rx-sample-delay:
+    description: Rx delay to sample data with this value, the valid
+                 values are from 0 to 47. The delay is smaller than
+                 the rx-latch-latency.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minItems: 0
+    maxItems: 47
+    default: 0
+
+  rx-latch-latency:
+    description: Rx delay to sample data with this value, the value
+                 unit is clock cycle.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
+    default: 0
+
 required:
   - compatible
   - reg
-- 
2.25.1