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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello Rob, Could you please tell me if there are any improvements to be made to the patch? Best regards, Andrei On 20.11.2018 10:08, Andrei Stefanescu - M50506 wrote: > This patch describes the compatible and the device tree > bindings necessary for the SAMA5D2 PIOBU GPIO. > > Signed-off-by: Andrei Stefanescu > --- > .../bindings/gpio/gpio-sama5d2-piobu.txt | 31 ++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt > > diff --git a/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt > new file mode 100644 > index 0000000..2e260e1 > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt > @@ -0,0 +1,31 @@ > +GPIO controller for SAMA5D2 PIOBU pins. > + > +These pins have the property of not losing their voltage > +during Backup/Self-refresh mode. > + > +These bindings should be set to a node in the dtsi file. > + > +Required properties: > +- compatible: "syscon", "microchip,sama5d2-piobu" > +- #gpio-cells: There are 2. The pin number is the > + first, the second represents additional > + parameters such as GPIO_ACTIVE_HIGH/LOW. > +- gpio-controller: Marks the port as GPIO controller. > + > +Note that the driver uses syscon and should be the child of > +the syscon node. > + > +Example: > + > + secumod@fc040000 { > + compatible = "atmel,sama5d2-secumod", "syscon", "simple-mfd"; > + status = "okay"; > + reg = <0xfc040000 0x100>; > + > + pioBU: piobu { > + status = "okay"; > + compatible = "microchip,sama5d2-piobu"; > + gpio-controller; > + #gpio-cells = <2>; > + }; > + }; _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel