[Patch V2 3/4] spi: dt-bindings: Add Tegra TPM wait polling flag

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Add "nvidia,wait-polling" flag to enable TCG TIS hardware flow control.

Signed-off-by: Krishna Yarlagadda <kyarlagadda@xxxxxxxxxx>
---
 .../bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml
index 2c3cada75339..19d2b30cadbf 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml
@@ -29,4 +29,10 @@ properties:
     minimum: 0
     maximum: 255
 
+  nvidia,wait-polling:
+    description:
+      Enable TPM wait polling feature for QSPI as specified in TCG PC Client
+      Specific TPM Interface Specification (TIS).
+    $ref: /schemas/types.yaml#/definitions/flag
+
 additionalProperties: true
-- 
2.17.1




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