18c2ecf20Sopenharmony_ci* Maxim Linear-Taper Digital Potentiometer MAX5481-MAX5484 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciThe node for this driver must be a child node of a SPI controller, hence 48c2ecf20Sopenharmony_ciall mandatory properties described in 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci Documentation/devicetree/bindings/spi/spi-bus.txt 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_cimust be specified. 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ciRequired properties: 118c2ecf20Sopenharmony_ci - compatible: Must be one of the following, depending on the 128c2ecf20Sopenharmony_ci model: 138c2ecf20Sopenharmony_ci "maxim,max5481" 148c2ecf20Sopenharmony_ci "maxim,max5482" 158c2ecf20Sopenharmony_ci "maxim,max5483" 168c2ecf20Sopenharmony_ci "maxim,max5484" 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ciExample: 198c2ecf20Sopenharmony_cimax548x: max548x@0 { 208c2ecf20Sopenharmony_ci compatible = "maxim,max5482"; 218c2ecf20Sopenharmony_ci spi-max-frequency = <7000000>; 228c2ecf20Sopenharmony_ci reg = <0>; /* chip-select */ 238c2ecf20Sopenharmony_ci}; 24