| Dallas DS1307 and compatible RTC |
| |
| Required properties: |
| - compatible: should be one of: |
| "dallas,ds1307", |
| "dallas,ds1308", |
| "dallas,ds1337", |
| "dallas,ds1338", |
| "dallas,ds1339", |
| "dallas,ds1388", |
| "dallas,ds1340", |
| "dallas,ds1341", |
| "maxim,ds3231", |
| "st,m41t0", |
| "st,m41t00", |
| "st,m41t11", |
| "microchip,mcp7940x", |
| "microchip,mcp7941x", |
| "pericom,pt7c4338", |
| "epson,rx8025", |
| "isil,isl12057" |
| "epson,rx8130" |
| - reg: I2C bus address of the device |
| |
| Optional properties: |
| - interrupts: rtc alarm interrupt. |
| - clock-output-names: From common clock binding to override the default output |
| clock name |
| - wakeup-source: Enables wake up of host system on alarm |
| - trickle-resistor-ohms : ds1339, ds1340 and ds 1388 only |
| Selected resistor for trickle charger |
| Possible values are 250, 2000, 4000 |
| Should be given if trickle charger should be enabled |
| - aux-voltage-chargeable: ds1339, ds1340, ds1388 and rx8130 only |
| Tells whether the battery/supercap of the RTC (if any) is |
| chargeable or not. |
| Possible values are 0 (not chargeable), 1 (chargeable) |
| |
| Deprecated properties: |
| - trickle-diode-disable : ds1339, ds1340 and ds1388 only |
| Do not use internal trickle charger diode |
| Should be given if internal trickle charger diode should be disabled |
| (superseded by aux-voltage-chargeable) |
| |
| Example: |
| ds1339: rtc@68 { |
| compatible = "dallas,ds1339"; |
| reg = <0x68>; |
| interrupt-parent = <&gpio4>; |
| interrupts = <20 0>; |
| trickle-resistor-ohms = <250>; |
| }; |
