On Wed, May 17, 2023 at 11:07:46AM -0400, Hugo Villeneuve wrote: > From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx> > > Some variants in this series of uart controllers have GPIO pins that > are shared between GPIO and modem control lines. > > The pin mux mode (GPIO or modem control lines) can be set for each > ports (channels) supported by the variant. > > This adds a property to the device tree to set the GPIO pin mux to > modem control lines on selected ports if needed. > > Signed-off-by: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx> > --- > .../bindings/serial/nxp,sc16is7xx.txt | 28 +++++++++++++++++++ > 1 file changed, 28 insertions(+) > > diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt > index 0fa8e3e43bf8..426b7285ad50 100644 > --- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt > +++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt > @@ -23,6 +23,9 @@ Optional properties: > 1 = active low. > - irda-mode-ports: An array that lists the indices of the port that > should operate in IrDA mode. > +- modem-control-line-ports: An array that lists the indices of the port that > + should have shared GPIO lines configured as modem > + control lines. If this is an NXP specific property, should it not have an nxp, vendor prefix?
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