Re: [PATCH] ARM: tegra: paz00: use software nodes to describe GPIOs for WiFi rfkill

[Marc Dietrich]

Hi Dimitry,

On Wed, 11 Feb 2026, Dmitry Torokhov wrote:

> Hi Thierry,
>
> On Fri, Jun 28, 2024 at 05:35:08PM +0200, Thierry Reding wrote:
> > From: Thierry Reding <treding@xxxxxxxxxx>
> >
> >
> > On Wed, 26 Jun 2024 21:46:13 -0700, Dmitry Torokhov wrote:
> > > Complete conversion of the WiFi rfkill device to use device
> > > properties/software nodes by utilizing PROPERTY_ENTRY_GPIO() instead of
> > > a lookup table.
> >
> > Applied, thanks!
> >
> > [1/1] ARM: tegra: paz00: use software nodes to describe GPIOs for WiFi rfkill
> >       commit: 47ac458bb229f8c4864081d173adbcfc55c34880
>
> Do you know by any chance why paz00 does not simply configure rfkill
> switch via device tree? The driver (rfkill-gpio) seem to support device
> tree...

last time I tried this was rejected because the wifi chip is on the usb 
bus and "rfkill" should be a sub-function of this chip [1], but that was 
some time ago...

Looking hard the schematics, the wifi chip does not have a gpio input as 
first thought. Rather it seems that the first gpio toggles a regulator 
which supplies the wifi module (m2 card) with power and the second gpio is 
just connected to the wifi LED.

Not sure how to transfer this into dt, but I guess this would be the 
better solution.

Marc

 [1] 
https://linux-tegra.vger.kernel.narkive.com/hRFke8jh/patch-1-3-net-rfkill-gpio-add-device-tree-support