[PATCH v1] spi: dt-bindings: spi-rockchip: restrict num-cs

[Johan Jonker <jbx6244@xxxxxxxxx>]

In the driver spi-rockchip.c max_native_cs is limited to 4 and the
default num-cs property is 1. Restrict num-cs in spi-rockchip.yaml.

Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx>
---
 Documentation/devicetree/bindings/spi/spi-rockchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
index e4941e9212d1..00d555bcbad3 100644
--- a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
@@ -65,6 +65,11 @@ properties:
       - const: tx
       - const: rx

+  num-cs:
+    default: 1
+    minimum: 1
+    maximum: 4
+
   rx-sample-delay-ns:
     default: 0
     description:
--
2.39.2