On Wednesday 15 January 2014 11:05:37 Mark Rutland wrote: > On Wed, Jan 15, 2014 at 05:21:05AM +0000, Yuan Yao wrote: > > --- a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt > > +++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt > > @@ -4,11 +4,24 @@ Required properties: > > - compatible : Should be "fsl,<soc>-lpuart" > > - reg : Address and length of the register set for the device > > - interrupts : Should contain uart interrupt > > +- clocks : from common clock binding: handle to uart clock > > +- clock-names : from common clock binding: Shall be "ipg" > > Why are these now requried if they weren't previously? That breaks old > dts. I can't see any new code touching clocks. Was this an old but > undocumented requirement? It was previously required but not documented. I asked Yuan Yao to add the text to the binding along with the new "dmas" addition. It would have been cleaner to do this as a separate patch, but at the very least it should be mentioned in the changelog. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html