linux-kernel - Re: [PATCH 2/2] arm64: dts: allwinner: h6: Add IOMMU reference to Hantro G2

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Date:   Tue, 15 Nov 2022 22:31:10 +0100
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Samuel Holland <samuel@...lland.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Chen-Yu Tsai <wenst@...omium.org>
Cc:     Chen-Yu Tsai <wenst@...omium.org>, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: allwinner: h6: Add IOMMU reference to Hantro G2

Dne torek, 15. november 2022 ob 10:06:44 CET je Chen-Yu Tsai napisal(a):
> The Hantro G2 video decoder block sits behind the IOMMU. Without a
> reference for the system to properly configure the IOMMU, it will fault
> and cause the video decoder to fail.
> 
> Add a proper reference to the IOMMU port. The master ID is taken from
> the IOMMU fault error message on Linux, and the number seems to match
> the order in the user manual's IOMMU diagram.
> 
> Fixes: 0baddea60e8d ("arm64: dts: allwinner: h6: Add Hantro G2 node")
> Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>

Acked-by: Jernej Skrabec <jernej.skrabec@...il.com>

Best regards,
Jernej