[PATCH 2/3] spi: dt-bindings: samsung: add samsung,spi-polling property

[Jaewon Kim <jaewon02.kim@xxxxxxxxxxx>]

This patch adds "samsung,spi-polling" property.
It is method to check data trans by polling when DMA is not used.

Signed-off-by: Jaewon Kim <jaewon02.kim@xxxxxxxxxxx>
---
 Documentation/devicetree/bindings/spi/samsung,spi.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/samsung,spi.yaml b/Documentation/devicetree/bindings/spi/samsung,spi.yaml
index e0a465d70b0a..b4942fe160f2 100644
--- a/Documentation/devicetree/bindings/spi/samsung,spi.yaml
+++ b/Documentation/devicetree/bindings/spi/samsung,spi.yaml
@@ -69,6 +69,12 @@ properties:
     $ref: /schemas/types.yaml#/definitions/uint32
     default: 0
 
+  samsung,spi-polling:
+    description:
+      Polling SPI data without DMA transfer.
+    type: boolean
+    default: 0
+
   reg:
     maxItems: 1
 
-- 
2.17.1