Linux Device Drivers Development

Instantiate SPI devices in device tree – the new way

By filling our device node in the DT properly, the kernel will build a struct spi_device for us, and give it as a parameter to our SPI core functions. The following is just an excerpt from the SPI DT listing defined previously:

&ecspi1 { 
    status = "okay"; 
    label: fake_spi_device@1 { 
    compatible = "packtpub,foobar-device"; 
    reg = <1>; 
    a-string-param = "stringvalue"; 
    spi-cs-high; 
   }; 
 };