linux-kernel - Re: [PATCH] ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations

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Message-Id: <20200322214524.19940-1-f.fainelli@gmail.com>
Date:   Sun, 22 Mar 2020 14:45:24 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     bcm-kernel-feedback-list@...adcom.com,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Rob Herring <robh+dt@...nel.org>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        Eric Anholt <eric@...olt.net>, Stefan Wahren <wahrenst@....net>
Cc:     devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations

On Thu, 19 Mar 2020 20:00:13 +0100, Nicolas Saenz Julienne <nsaenzjulienne@...e.de> wrote:
> The bus is virtual and devices have to inherit their DMA constraints
> from the underlying interconnect. So add an empty dma-ranges property to
> the bus node, implying the firmware bus' DMA constraints are identical to
> its parent's.
> 
> Fixes: 7dbe8c62ceeb ("ARM: dts: Add minimal Raspberry Pi 4 support")
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
> ---

Applied to devicetree/fixes, thanks!
--
Florian