On Fri, Jan 16, 2015 at 12:53:16PM +0000, Lyra Zhang wrote:

Hi, Mark

quoted

quoted

+
+Required properties:
+- compatible: must be "sprd,sc9836-uart"
+- reg: offset and length of the register set for the device
+- interrupts: exactly one interrupt specifier
+- clocks: phandles to input clocks.

The order and relevance of each should be specified. If you have
multiple clocks I would strongly recommend you use clock-names to
distinguish them.

Thank you for the recommendation.
but, since we haven't made the clock driver ready, for this initial
commit, we just let 4 UARTs share a single fixed 26 MHz clock source.
we'll do like you've recommended when we will submit the clock driver
in the future.

I'm on about the clock input lines on the UART instance, not the
providers they come from.

Is there only a single clock input line on each UART? Perhaps multiple
input lines which are currently fed by the same clock?

Thanks,
Mark.