linux-kernel - Re: [PATCH] driver core: Don't try to create links if they are not needed

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Message-ID: <CAGETcx99h+HzL__E8w5VWgn9NrjdMk3KAdeijJXmdDF6fm7NOQ@mail.gmail.com>
Date: Wed, 23 Oct 2024 11:34:55 -0700
From: Saravana Kannan <saravanak@...gle.com>
To: Jon Hunter <jonathanh@...dia.com>
Cc: Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J . Wysocki" <rafael@...nel.org>, 
	linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH] driver core: Don't try to create links if they are not needed

On Wed, Oct 23, 2024 at 7:09 AM Jon Hunter <jonathanh@...dia.com> wrote:
>
>
> On 23/10/2024 14:58, Nícolas F. R. A. Prado wrote:
>
> ...
>
> > I'm guessing a similar change to what Saravana suggested for the
> > of_dp_aux_populate_bus() helper is needed here:
> >
> > diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
> > index cfdb54b6070a..0a2096085971 100644
> > --- a/drivers/phy/tegra/xusb.c
> > +++ b/drivers/phy/tegra/xusb.c
> > @@ -543,7 +543,7 @@ static int tegra_xusb_port_init(struct tegra_xusb_port *port,
> >
> >          device_initialize(&port->dev);
> >          port->dev.type = &tegra_xusb_port_type;
> > -       port->dev.of_node = of_node_get(np);
> > +       device_set_node(&port->dev, of_fwnode_handle(of_node_get(np)));
> >          port->dev.parent = padctl->dev;
> >
> >          err = dev_set_name(&port->dev, "%s-%u", name, index);
> >
> >
> > As a side note, I wonder if it would be possible to detect these mistakes... But
> > I'm guessing there are legitimate situations where there's no fwnode.
>
>
> Yes! That does indeed fix the issue.
>
> Saravana, let me know if you can send a patch? I would but I can't say I
> understand that actual issue.

Heh... didn't know you were hitting the exact same issue. I'll send
out a patch. Okay to add your tested by too?

-Saravana