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From: Linus Walleij <linus.walleij@linaro.org>
To: Saravana Kannan <saravanak@google.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	 linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	 Marek Szyprowski <m.szyprowski@samsung.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	 Kevin Hilman <khilman@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	 Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	 "Rafael J. Wysocki" <rafael@kernel.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	 Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Android Kernel Team <kernel-team@android.com>,
	 Linux PM <linux-pm@vger.kernel.org>
Subject: Re: Default async probing for DT based systems
Date: Sat, 25 Jun 2022 20:09:39 +0200	[thread overview]
Message-ID: <CACRpkdb1-F1CP0AAbS5FHoDRFdX-bS2m0NOfQm9nVcery+cW4Q@mail.gmail.com> (raw)
In-Reply-To: <CAGETcx-io_5tVbRBfuB-qOwm4tV0A5FR82Q21Z1dJcLbAOkd=A@mail.gmail.com>

On Fri, Jun 17, 2022 at 8:01 PM Saravana Kannan <saravanak@google.com> wrote:
> On Fri, Jun 17, 2022 at 1:21 AM Linus Walleij <linus.walleij@linaro.org> wrote:
> > On Thu, Jun 16, 2022 at 5:25 AM Saravana Kannan <saravanak@google.com> wrote:
> >
> > > Since fw_devlink=on is the default behavior and fw_devlink understands
> > > approximately 24 DT bindings,
> >
> > How can I see which these are, in the kernel tree?
>
> device/of/property.c has an array of these binding handling functions
> in of_supplier_bindings[].
>
> Most of the functions there are created using DEFINE_SIMPLE_PROP() or
> DEFINE_SUFFIX_PROP() that's also in the same file.

Thanks!

We already have some device links in pin control, it's an opt-in for
drivers, used e.g in drivers/pinctrl/stm32/pinctrl-stm32.c
where you see
pctl->pctl_desc.link_consumers = true;
how does that
play with this? Double device links at different levels?

I had a patch to just enforce device links on all pinctrl resources,
but it seemed over the top:
https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git/commit/?h=consumer-link-enforce&id=73441cf773ed91bff0e7f66614d391b2514188bf

Yours,
Linus Walleij

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  reply	other threads:[~2022-06-25 18:11 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20220616032522eucas1p19a6c8718f01fa61c2fee795fb8945a92@eucas1p1.samsung.com>
2022-06-16  3:24 ` Default async probing for DT based systems Saravana Kannan
2022-06-16 16:45   ` Frank Rowand
2022-06-17  8:21   ` Linus Walleij
2022-06-17 18:00     ` Saravana Kannan
2022-06-25 18:09       ` Linus Walleij [this message]
2022-06-27  6:10         ` Saravana Kannan
2022-06-17  9:03   ` Marek Szyprowski
2022-06-17 18:04     ` Saravana Kannan
2022-06-23  2:36       ` Saravana Kannan
2022-06-23  9:55         ` Greg Kroah-Hartman

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