Re: [PATCH 0/5] RTL8231 GPIO expander support

Sander Vanheule
2021-05-17T19:32:59Z

On Sun, 2021-05-16 at 23:40 +0200, Sander Vanheule wrote:
> > 2. Please, switch to fwnode API in LED driver
>
> Since you had the same comment on my previous patch set, I had already tried to
> this this into account as much as possible.
>
> There's a few things I couldn't find the fwnode-equivalent for:
>  * I use of_node_name_prefix to enforce the naming required by the binding. I
>    could just walk over all (available) child nodes, which would be mostly
>    equivalent.
>  * To get the address of an LED child node, I use of_get_address, since this
>    appeared to provide what I want to do: get the address of the node. I know
>    next to nothing about ACPI. Does the equivalent exist there? Or am I taking
>    the wrong approach?

Hi Andy,

I found this:
https://www.kernel.org/doc/html/latest/firmware-guide/acpi/dsd/leds.html

So instead of of_address, I now just read the "reg" property. The v2 I just sent
should be fwnode-only.

Best,
Sander