On Fri, 19 May 2023 15:03:37 +0200
Lech Perczak <lech.perczak@xxxxxxxxxxxxxxx> wrote:
> Hello Hugo,
>
> W dniu 18.05.2023 o 15:29, Hugo Villeneuve pisze:
> > 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>
> > ---
> > v1 -> v2: Add nxp vendor prefix
> > Add git base-commit
> >
> > .../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..23a81c83f012 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.
> > +- nxp,modem-control-line-ports: An array that lists the indices of the port that
> > + should have shared GPIO lines configured as modem
> > + control lines.
> >
> > Example:
> > sc16is750: sc16is750@51 {
> > @@ -35,6 +38,17 @@ Example:
> > #gpio-cells = <2>;
> > };
> >
> > + sc16is752: sc16is752@54 {
> > + compatible = "nxp,sc16is752";
> > + reg = <0x54>;
> > + clocks = <&clk20m>;
> > + interrupt-parent = <&gpio3>;
> > + interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
> > + nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
> > + gpio-controller; /* Port 0 as GPIOs */
> > + #gpio-cells = <2>;
> > + };
> > +
> > * spi as bus
> >
> > Required properties:
> > @@ -59,6 +73,9 @@ Optional properties:
> > 1 = active low.
> > - irda-mode-ports: An array that lists the indices of the port that
> > should operate in IrDA mode.
> > +- nxp,modem-control-line-ports: An array that lists the indices of the port that
> > + should have shared GPIO lines configured as modem
> > + control lines.
> >
> > Example:
> > sc16is750: sc16is750@0 {
> > @@ -70,3 +87,14 @@ Example:
> > gpio-controller;
> > #gpio-cells = <2>;
> > };
> > +
> > + sc16is752: sc16is752@0 {
> > + compatible = "nxp,sc16is752";
> > + reg = <0>;
> > + clocks = <&clk20m>;
> > + interrupt-parent = <&gpio3>;
> > + interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
> > + nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
> Just a minor nitpick: an example showing syntax for both ports would be great.
> This can be included here, leaving the previous example intact. Otherwise, LGTM.
> > + gpio-controller; /* Port 0 as GPIOs */
> > + #gpio-cells = <2>;
Hi,
I have decided to add a separate example, because adding an example for both ports also means that the gpio-controller property should be removed.
Hugo.
> > + };
> >
> > base-commit: 4d6d4c7f541d7027beed4fb86eb2c451bd8d6fff
> > --
> > 2.30.2
>
> --
> Pozdrawiam/With kind regards,
> Lech Perczak
>
> Sr. Software Engineer
> Camlin Technologies Poland Limited Sp. z o.o.
> Strzegomska 54,
> 53-611 Wroclaw
> Tel: (+48) 71 75 000 16
> Email: lech.perczak@xxxxxxxxxxxxxxx
> Website: http://www.camlingroup.com
>
>
