LTC2983 & Device Tree (ZynqMP Ultarscale+ ADRV9009-ZU11EG)

Question

Hello, 
 I'm looking to customize the device tree on my linux target to incorporate the LTC2983 temp sensor. I've been referencing SPI device initialization here and the device tree customization on the target here . Does incorporating this SPI device initialization example into a .dts file expose the LTC298 properties to the devicetree after a reboot? And if so what dts file does the initialization example need to be place in?

mhennerich · Accepted Answer

There is a auxiliary SPI (spi0) interface routed to the PMOD connector on the ZU11EG carrier. 
 https://github.com/analogdevicesinc/hdl/blob/master/projects/adrv9009zu11eg/adrv2crr_fmc/system_top.v#L260 
 I assume you don't use an external HMC7044 board in your setup. 
 So you could reuse this spi0 cs4 node: 
 https://github.com/analogdevicesinc/linux/blob/master/arch/arm64/boot/dts/xilinx/zynqmp-adrv9009-zu11eg-reva-adrv2crr-fmc-reva.dts#L524 
 if you use "cs-gpios" property you could use any system GPIO as CS. 
 Please see here: https://github.com/analogdevicesinc/linux/blob/master/Documentation/devicetree/bindings/spi/spi-bus.txt 
 -Michael)

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LTC2983 & Device Tree (ZynqMP Ultarscale+ ADRV9009-ZU11EG)