On Thu, Aug 11, 2022 at 12:14:48PM +0300, Krzysztof Kozlowski wrote: > On 10/08/2022 23:47, Bjorn Andersson wrote: > > Introduce a binding for GPIO-based mux hardware used for connecting, > > disconnecting and switching orientation of the SBU lines in USB Type-C > > applications. > > > > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> > > --- > > .../devicetree/bindings/usb/gpio-sbu-mux.yaml | 77 +++++++++++++++++++ > > 1 file changed, 77 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml > > > > diff --git a/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml b/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml > > new file mode 100644 > > index 000000000000..7d8aca40c7ca > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml > > @@ -0,0 +1,77 @@ > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > > +%YAML 1.2 > > +--- > > +$id: "http://devicetree.org/schemas/usb/gpio-sbu-mux.yaml#"; > > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; > > + > > +title: GPIO-based SBU mux > > + > > +maintainers: > > + - Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> > > + > > +description: > > + In USB Type-C applications the SBU lines needs to be connected, disconnected > > + and swapped depending on the altmode and orientation. This binding describes > > + a family of hardware which perform this based on GPIO controls. > > +Cc few folks. > > This looks familiar to: > > https://lore.kernel.org/linux-devicetree/eaf2fda8-0cd6-b518-10cb-4e21b5f8c909@xxxxxxxxxx/T/#m39254b7f8970b3e1264f9d1a979557bb46ab162c > > Rob and Stephen had several concerns about that approach. My overall concern is a bunch of one-off bindings with no one thinking about a variety of USB-C h/w. I need h/w diagrams and corresponding bindings. The key part being more than 1. I'm not all that familiar with the former to help on the bindings. Rob
