[RFC 1/3] dt-bindings: rtc: Add Realtek RTD1295
From: andrew@lunn.ch (Andrew Lunn)
Date: 2017-08-27 13:47:43
Also in:
linux-devicetree, linux-rtc, lkml
From: andrew@lunn.ch (Andrew Lunn)
Date: 2017-08-27 13:47:43
Also in:
linux-devicetree, linux-rtc, lkml
Thanks. Did you read the RFC question in the cover letter as well and have any comments? Downstream has an rtc-base-year = <2014>; property that I had left out in this RFC and due to your ack not included in v2. Should we default to 2014 in the driver and add an optional base-year property once we encounter a diverging device, or should we make it required from the beginning? I did not spot any other rtc binding with such a property and would appreciate a clarification.
Hi Andreas
From the perspective of the hardware, does it care what the base is?
A device using a different base will initially return the wrong time. But once the correct time has been written back, it will be O.K. This only becomes an issue if a device is used with different OSs, which have different bases. Swapping back and forth between OSs then becomes an issue. KISS suggests not having a base in DT until it is actually required. Since it is an additional property, it does not break backwards compatibility when added. Andrew