Re: [RFC v4 2/2] backlight: device tree: add new tps611xx backlight binding
From: Mark Rutland <mark.rutland@arm.com>
Date: 2014-07-04 16:31:29
Also in:
linux-devicetree, lkml
> +- rfa-enable: enable request for acknowledge.
> + If RFA is enabled, the data byte includes the RFA bit and device will
wait
> + and check acknowledge from device.
You didn't answer my question as to why this should be in the DT.
According to the RFA enable, the easy scale pin works differently.
This value should be set before the first data transfer.Sure, things works differently if this is set. That I understood. What I haven't heard is a rationale as to why this configuration option shuold be in the DT. Can I enable this on all implementations, or not? When would I enable this and when would I not? The property reads like a switch to turn a feature on, rather than the description of the presence of a feature. Mark.