Commit a9411ef1 authored by Hui Wang's avatar Hui Wang Committed by Greg Kroah-Hartman
Browse files

dt-bindings: serial: sc16is7xx: add reset-gpios 



In some designs, the chip reset pin is connected to a GPIO, and this
GPIO needs to be set correctly before probing the driver, so add a
reset-gpios in the device tree.

Acked-by: default avatarConor Dooley <conor.dooley@microchip.com>
Reviewed-by: default avatarLech Perczak <lech.perczak@camlingroup.com>
Tested-by: default avatarHugo Villeneuve <hvilleneuve@dimonoff.com>
Reviewed-by: default avatarHugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: default avatarHui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20240618112620.152848-1-hui.wang@canonical.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 418af7ee

Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml

+5 −0
Original line number Diff line number Diff line
@@ -28,6 +28,9 @@ properties: 
  clocks:

    maxItems: 1



  reset-gpios:

    maxItems: 1



  clock-frequency:

    description:

      When there is no clock provider visible to the platform, this
@@ -91,6 +94,7 @@ unevaluatedProperties: false 
examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    #include <dt-bindings/gpio/gpio.h>

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;
@@ -120,6 +124,7 @@ examples: 
            compatible = "nxp,sc16is752";

            reg = <0x54>;

            clocks = <&clk20m>;

            reset-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;

            interrupt-parent = <&gpio3>;

            interrupts = <7 IRQ_TYPE_EDGE_FALLING>;

            nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */