18c2ecf20Sopenharmony_ciISL12026 I2C RTC/EEPROM
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38c2ecf20Sopenharmony_ciISL12026 is an I2C RTC/EEPROM combination device.  The RTC and control
48c2ecf20Sopenharmony_ciregisters respond at bus address 0x6f, and the EEPROM array responds
58c2ecf20Sopenharmony_ciat bus address 0x57.  The canonical "reg" value will be for the RTC portion.
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78c2ecf20Sopenharmony_ciRequired properties supported by the device:
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98c2ecf20Sopenharmony_ci - "compatible": must be "isil,isl12026"
108c2ecf20Sopenharmony_ci - "reg": I2C bus address of the device (always 0x6f)
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128c2ecf20Sopenharmony_ciOptional properties:
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148c2ecf20Sopenharmony_ci - "isil,pwr-bsw": If present PWR.BSW bit must be set to the specified
158c2ecf20Sopenharmony_ci                   value for proper operation.
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178c2ecf20Sopenharmony_ci - "isil,pwr-sbib": If present PWR.SBIB bit must be set to the specified
188c2ecf20Sopenharmony_ci                    value for proper operation.
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218c2ecf20Sopenharmony_ciExample:
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238c2ecf20Sopenharmony_ci	rtc@6f {
248c2ecf20Sopenharmony_ci		compatible = "isil,isl12026";
258c2ecf20Sopenharmony_ci		reg = <0x6f>;
268c2ecf20Sopenharmony_ci		isil,pwr-bsw = <0>;
278c2ecf20Sopenharmony_ci		isil,pwr-sbib = <1>;
288c2ecf20Sopenharmony_ci	}
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