On Tue, Nov 03, 2020 at 07:40:07PM +0800, Li Jun wrote: > Some platforms need a simple driver to do some controls according to > typec orientation, this can be extended to be a generic driver with > compatible with "typec-orientation-switch". > > Signed-off-by: Li Jun <jun.li@xxxxxxx> > --- > No changes for v5. > > changes on v4: > - Use compatible instead of bool property for switch matching. > - Change switch GPIO to be switch simple. > - Change the active channel selection GPIO to be optional. > > previous discussion: > http://patchwork.ozlabs.org/patch/1054342/ > > .../bindings/usb/typec-switch-simple.yaml | 69 ++++++++++++++++++++++ > 1 file changed, 69 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/typec-switch-simple.yaml b/Documentation/devicetree/bindings/usb/typec-switch-simple.yaml > new file mode 100644 > index 0000000..244162d > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/typec-switch-simple.yaml > @@ -0,0 +1,69 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/usb/typec-switch-simple.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Typec Orientation Switch Simple Solution Bindings > + > +maintainers: > + - Li Jun <jun.li@xxxxxxx> > + > +description: |- > + USB SuperSpeed (SS) lanes routing to which side of typec connector is > + decided by orientation, this maybe achieved by some simple control like > + GPIO toggle. > + > +properties: > + compatible: > + const: typec-orientation-switch > + > + switch-gpios: > + description: | > + gpio specifier to switch the super speed active channel, > + GPIO_ACTIVE_HIGH: GPIO state high for cc1; > + GPIO_ACTIVE_LOW: GPIO state low for cc1. What does active mean? There isn't really an active and inactive state, right? It's more a mux selecting 0 or 1 input? I think you want flags 0 (aka GPIO_ACTIVE_HIGH) unless there's an inverter in the middle. > + maxItems: 1 > + > + port: > + type: object > + additionalProperties: false > + description: -| > + Connection to the remote endpoint using OF graph bindings that model SS > + data bus to typec connector. > + > + properties: > + endpoint: > + type: object > + additionalProperties: false > + > + properties: > + remote-endpoint: true > + > + required: > + - remote-endpoint > + > + required: > + - endpoint > + > +required: > + - compatible > + - port > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + ptn36043 { > + compatible = "typec-orientation-switch"; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_ss_sel>; > + switch-gpios = <&gpio3 15 GPIO_ACTIVE_HIGH>; > + > + port { > + usb3_data_ss: endpoint { > + remote-endpoint = <&typec_con_ss>; The data goes from the connector to here and then where? You need a connection to the USB host controller. > + }; > + }; > + }; > -- > 2.7.4 >
