[PATCH v11 01/19] spi: dt-bindings: add spi-max-post-config-frequency-hz property

[Santhosh Kumar K]

Add spi-max-post-config-frequency-hz, a generic property for SPI
peripherals that operate at two distinct clock rates: a conservative
rate always reachable without controller configuration, and a higher
rate achievable only after controller-side configuration.

When both properties are present, spi-max-frequency gives the
conservative pre-configuration rate and spi-max-post-config-frequency-hz
gives the higher post-configuration target.

Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Tested-by: Srikanth Boyapally <srikanth.boyapally@xxxxxxx>
Tested-by: Moteen Shah <m-shah@xxxxxx>
Reviewed-by: Moteen Shah <m-shah@xxxxxx>
Signed-off-by: Santhosh Kumar K <s-k6@xxxxxx>
---
 .../devicetree/bindings/spi/spi-peripheral-props.yaml       | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
index 8f4b4b202e1d..ec91d5bed96a 100644
--- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
@@ -45,6 +45,12 @@ properties:
     description:
       Maximum SPI clocking speed of the device in Hz.
 
+  spi-max-post-config-frequency-hz:
+    maxItems: 1
+    description:
+      Maximum SPI clock frequency in Hz achievable after controller-side
+      configuration.
+
   spi-cs-setup-delay-ns:
     description:
       Delay in nanoseconds to be introduced by the controller after CS is
-- 
2.34.1