On 5/9/19 6:11 PM, Dan Murphy wrote: > DT binding documentation for TI TCAN4x5x driver. > > Signed-off-by: Dan Murphy <dmurphy@xxxxxx> > --- > > v12 - No changes - https://lore.kernel.org/patchwork/patch/1052300/ > > v11 - No changes - https://lore.kernel.org/patchwork/patch/1051178/ > v10 - No changes - https://lore.kernel.org/patchwork/patch/1050488/ > v9 - No Changes - https://lore.kernel.org/patchwork/patch/1050118/ > v8 - No Changes - https://lore.kernel.org/patchwork/patch/1047981/ > v7 - Made device state optional - https://lore.kernel.org/patchwork/patch/1047218/ > v6 - No changes - https://lore.kernel.org/patchwork/patch/1042445/ > > .../devicetree/bindings/net/can/tcan4x5x.txt | 37 +++++++++++++++++++ > 1 file changed, 37 insertions(+) > create mode 100644 Documentation/devicetree/bindings/net/can/tcan4x5x.txt > > diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt > new file mode 100644 > index 000000000000..c388f7d9feb1 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt > @@ -0,0 +1,37 @@ > +Texas Instruments TCAN4x5x CAN Controller > +================================================ > + > +This file provides device node information for the TCAN4x5x interface contains. > + > +Required properties: > + - compatible: "ti,tcan4x5x" > + - reg: 0 > + - #address-cells: 1 > + - #size-cells: 0 > + - spi-max-frequency: Maximum frequency of the SPI bus the chip can > + operate at should be less than or equal to 18 MHz. > + - data-ready-gpios: Interrupt GPIO for data and error reporting. > + - device-wake-gpios: Wake up GPIO to wake up the TCAN device. > + > +See Documentation/devicetree/bindings/net/can/m_can.txt for additional > +required property details. > + > +Optional properties: > + - reset-gpios: Hardwired output GPIO. If not defined then software > + reset. > + - device-state-gpios: Input GPIO that indicates if the device is in > + a sleep state or if the device is active. > + > +Example: > +tcan4x5x: tcan4x5x@0 { > + compatible = "ti,tcan4x5x"; > + reg = <0>; > + #address-cells = <1>; > + #size-cells = <1>; > + spi-max-frequency = <10000000>; > + bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>; > + data-ready-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>; Can you convert this into a proper interrupt property? E.g.: > interrupt-parent = <&gpio4>; > interrupts = <13 0x2>; See: https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt#L21 https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git/tree/drivers/net/can/spi/mcp251x.c?h=mcp251x#n945 > + device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>; > + device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; > + reset-gpios = <&gpio1 27 GPIO_ACTIVE_LOW>; > +}; Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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