18c2ecf20Sopenharmony_ciIBM OPAL real-time clock 28c2ecf20Sopenharmony_ci------------------------ 38c2ecf20Sopenharmony_ci 48c2ecf20Sopenharmony_ciRequired properties: 58c2ecf20Sopenharmony_ci- compatible: Should be "ibm,opal-rtc" 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ciOptional properties: 88c2ecf20Sopenharmony_ci- wakeup-source: Decides if the wakeup is supported or not 98c2ecf20Sopenharmony_ci (Legacy property supported: "has-tpo") 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ciExample: 128c2ecf20Sopenharmony_ci rtc { 138c2ecf20Sopenharmony_ci compatible = "ibm,opal-rtc"; 148c2ecf20Sopenharmony_ci wakeup-source; 158c2ecf20Sopenharmony_ci phandle = <0x10000029>; 168c2ecf20Sopenharmony_ci linux,phandle = <0x10000029>; 178c2ecf20Sopenharmony_ci }; 18