[PATCH 5/6] dt-bindings: spi: Tegra QUAD SPI combined sequence

[Krishna Yarlagadda]

Tegra194 and later chips support combined sequence mode which result
in less interrupts and better perf. This flag helps enable it.

Signed-off-by: Krishna Yarlagadda <kyarlagadda@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
index 6efea89..3767059 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
@@ -46,6 +46,14 @@ properties:
       - const: rx
       - const: tx
 
+  nvidia,cmb-xfer:
+    description:
+      Enable combined sequence transfers for read and program sequence
+      if supported by hardware. Tegra194 and later chips support this
+      feature. Default is non combined sequence. SPI message should
+      contain CMD-ADDR-DATA transfers to combine and send to hardware.
+    type: boolean
+
 patternProperties:
   "@[0-9a-f]+":
     type: object
-- 
2.7.4