linux-kernel - Re: [PATCH] of: property: Add device link support for interrupt-parent, dmas and -gpio(s)

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Date:   Fri, 22 Nov 2019 08:38:19 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Saravana Kannan <saravanak@...gle.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vinod Koul <vkoul@...nel.org>, kernel-team@...roid.com,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] of: property: Add device link support for
 interrupt-parent, dmas and -gpio(s)

On Wed, Nov 20, 2019 at 8:13 AM Saravana Kannan <saravanak@...gle.com> wrote:

> Add support for creating device links out of more DT properties.
>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Vinod Koul <vkoul@...nel.org>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Saravana Kannan <saravanak@...gle.com>

This looks to me like doing the right thing and making sure that
the GPIO drivers get probed before their consumers and thus
speed up boot.
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

I guess I should get on with adding device links at runtime
as well, both for GPIO and pin control so that things work
with runtime-added devices and boardfiles and ACPI, if I
understand correctly it's fine to add the same link twice, it
will just be ignored?

Yours,
Linus Walleij