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    Paul Handrigan

    @Paul Handrigan

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    Joined 29 Jan 2025, 17:27 Last Online 15 May 2025, 18:55

    Paul Handrigan Unfollow Follow

    Latest posts made by Paul Handrigan

    • MCP2515 CAN device on VOXL2 J10 SPI + gpio

      I have added a MCP2515 CAN controller to the SPI bus on J10 using GPIO_46/CS1 as the interrupt gpio pin. I have added the in tree driver into the kernel. I have requested gpio 46 as the interrupt pin, but it is not taking effect. However, when it does request the gpio, you can see contention on the pin.

      What do I need to do in order to configure GPIO_46 as an input gpio to use as an interrupt for this device? Below is the DT node that I am using.

      +&qupv3_se14_spi {

      •   status = "ok";
        
      •   can_spi: can@0 {
        
      •           compatible = "microchip,mcp2515";
        
      •           reg = <0>;
        
      •           interrupt-parent = <&tlmm>;
        
      •           interrupts = <46 0x8>;
        
      •           clocks = <&clk12M>;
        
      •           spi-max-frequency = <8000000>;
        
      •   };
        

      +};

      Thanks in advance!
      Paul

      posted in Ask your questions right here!
      P
      Paul Handrigan
      6 Mar 2025, 16:45
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