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LTC2983 Recommended for New Designs
The LTC2983 measures a wide variety of temperature sensors and digitally outputs the result, in °C or °F, with 0.1°C accuracy and 0.001°C resolution. The...
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LTC2983 on Analog.com

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



		

			

									
					    Rsilver
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jul 7, 2020 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    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?
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
			                            
                        
                on Jul 13, 2020 4:09 AM
            
            
					
      
	
      

		
		
      
					
      Hi,
      

      

      How are you exactly defining your devicetree? You need to define the ltc2983 properties under the spi controller node where it is attached. Note that on this example, spi0 is just meant to be an example. It does not mean that you have to define it like that. On which platform do you want to use ltc2983?
      

      - Nuno Sá
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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                on Dec 15, 2020 3:15 PM
            
            
												
						in reply to nsa
					
									
        
	
        

		
		
        
					
        Hi,
        

        So I've made changes to the HDL to define the SPI pins and the dts file to include the ltc2983 properties definition. I've also rebuilt the kernel image with the device drivers enabled. However, the spi does not seem to link to the driver. 
        

        Does the ltc driver need to be included in the bindings somehow? 
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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													0
							
			
				
									
							        
			
			
			
          
            
			                            
                        
                on Dec 15, 2020 3:15 PM
            
            
												
						in reply to nsa
					
									
          
	
          

		
		
          
					
          Hi,
          

          So I've made changes to the HDL to define the SPI pins and the dts file to include the ltc2983 properties definition. I've also rebuilt the kernel image with the device drivers enabled. However, the spi does not seem to link to the driver. 
          

          Does the ltc driver need to be included in the bindings somehow? 
          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

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