linux-kernel - Re: [PATCH v2 2/2] of: property: Add fw

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Message-ID: <9692dfc9-4c63-71c9-b52b-d0feba466695@samsung.com>
Date:   Thu, 4 Feb 2021 12:52:50 +0100
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     Saravana Kannan <saravanak@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-tegra <linux-tegra@...r.kernel.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Jon Hunter <jonathanh@...dia.com>,
        Marc Zyngier <maz@...nel.org>,
        Kevin Hilman <khilman@...libre.com>, kernel-team@...roid.com,
        Rob Herring <robh@...nel.org>,
        Thierry Reding <treding@...dia.com>
Subject: Re: [PATCH v2 2/2] of: property: Add fw_devlink support for
 interrupts

Hi Saravana,

On 21.01.2021 23:57, Saravana Kannan wrote:
> This allows fw_devlink to create device links between consumers of an
> interrupt and the supplier of the interrupt.
>
> Cc: Marc Zyngier <maz@...nel.org>
> Cc: Kevin Hilman <khilman@...libre.com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Reviewed-by: Thierry Reding <treding@...dia.com>
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Saravana Kannan <saravanak@...gle.com>

This patch landed some time ago in linux-next as commit 4104ca776ba3 
("of: property: Add fw_devlink support for interrupts"). It breaks MMC 
host controller operation on ARM Juno R1 board (the mmci@...00 device 
defined in arch/arm64/boot/dts/arm/juno-motherboard.dtsi). I didn't 
check further what's wrong there as without MMC mounting rootfs fails in 
my test system.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland