[PATCH v4 2/7] dt-bindings: phy: samsung,usb3-drd-phy: gs101: require Type-C properties

[Rob Herring (Arm)]

On Fri, 06 Dec 2024 16:31:02 +0000, André Draszik wrote:
> orientation-switch is the standard declaration to inform the Type-C mux
> layer that a remote-endpoint is capable of processing orientation
> change messages.
> 
> The USB PHY on gs101 needs to be configured based on the orientation of
> the connector. For that the DTS needs a link between the phy's port and
> a TCPCi, and we'll need to inform the phy driver that it should handle
> the orientation (register a handler).
> 
> Update the schema to enforce that by requiring the orientation-switch
> and port properties on gs101 (only). We disallow orientation-switch on
> all other supported platforms, since other versions of this phy (or its
> system integration) don't currently support or even need it.
> 
> Even though this new required gs101 property is an ABI break, the
> intention for the driver is to behave as before if it's missing
> (meaning for gs101 it will work in SS mode in one orientation only).
> Other platforms are not affected.
> 
> Reviewed-by: Peter Griffin <peter.griffin at linaro.org>
> Signed-off-by: André Draszik <andre.draszik at linaro.org>
> 
> ---
> v3:
> * update as per Rob's suggestion (I hope :-)
> 
> v2:
> * squash original patches #2 and #3
> * actually disallow orientation-switch on !gs101 (not just optional) (Conor)
> * update commit message to clarify that the intention for the driver is
>   to work with old and new DTS (Conor)
> * collect tags
> 
> foo
> ---
>  Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring (Arm) <robh at kernel.org>