Re: [PATCH 1/2] watchdog: bcm7038: add device tree binding documentation

[Guenter Roeck]

Justin,

On Tue, Aug 25, 2015 at 10:55:40AM -0700, Justin Chen wrote:
> 
> Hello Guenter,
> 
> > Is 'clock-frequency' really needed (and useful), or would it make more sense
> > to expect the user to configure a fixed clock if nothing else is available ?
> > How do other drivers handle this ?
> 
> The reason for 'clock-frequency' was for a case where our device tree did not
> have clocks. Creating a new fixed clock for a single device seems unnecessary
> compared to a 'clock-frequency' property. Their is a use for 'clock-frequency',
> but it is not really necessary. However, this is my first linux patch, so I do 
> not fully trust my judgement on this...
> 

All that is needed for a fixed clock is a devicetree entry for it. Not sure
I understand your line of argument; you add a lot of complexity and code
just to avoid those few lines in the dts file (especially with 500+
"fixed-clock" nodes in other devicetree files).

Thanks,
Guenter
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/