18c2ecf20Sopenharmony_ci*st-asc(Serial Port) 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciRequired properties: 48c2ecf20Sopenharmony_ci- compatible : Should be "st,asc". 58c2ecf20Sopenharmony_ci- reg, reg-names, interrupts, interrupt-names : Standard way to define device 68c2ecf20Sopenharmony_ci resources with names. look in 78c2ecf20Sopenharmony_ci Documentation/devicetree/bindings/resource-names.txt 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ciOptional properties: 108c2ecf20Sopenharmony_ci- st,hw-flow-ctrl bool flag to enable hardware flow control. 118c2ecf20Sopenharmony_ci- st,force-m1 bool flat to force asc to be in Mode-1 recommeded 128c2ecf20Sopenharmony_ci for high bit rates (above 19.2K) 138c2ecf20Sopenharmony_ciExample: 148c2ecf20Sopenharmony_ciserial@fe440000{ 158c2ecf20Sopenharmony_ci compatible = "st,asc"; 168c2ecf20Sopenharmony_ci reg = <0xfe440000 0x2c>; 178c2ecf20Sopenharmony_ci interrupts = <0 209 0>; 188c2ecf20Sopenharmony_ci}; 19