linux-kernel - Re: [PATCH v3] ARM: dts: tegra30: Connect SMMU with Video Decoder Engine

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Date:   Mon, 12 Aug 2019 19:42:29 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>
Cc:     Jonathan Hunter <jonathanh@...dia.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        Rob Herring <robh+dt@...nel.org>, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] ARM: dts: tegra30: Connect SMMU with Video Decoder
 Engine

23.06.2019 20:07, Dmitry Osipenko пишет:
> Enable IOMMU support for the video decoder.
> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
> 
> No changes since v1.
> 
>  arch/arm/boot/dts/tegra30.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
> index 934caa83c8db..ce162125e7bf 100644
> --- a/arch/arm/boot/dts/tegra30.dtsi
> +++ b/arch/arm/boot/dts/tegra30.dtsi
> @@ -424,6 +424,7 @@
>  		clocks = <&tegra_car TEGRA30_CLK_VDE>;
>  		reset-names = "vde", "mc";
>  		resets = <&tegra_car 61>, <&mc TEGRA30_MC_RESET_VDE>;
> +		iommus = <&mc TEGRA_SWGROUP_VDE>;
>  	};
>  
>  	apbmisc@...00800 {
> 

Hello Thierry,

Will be awesome if you could pick up this and [1][2] for v5.4. The rest of the VDE patches
are already applied by the media maintainers in linux-next, please note that [2] is required
to avoid problems caused by the notorious implicit IOMMU backing. Thanks in advance!

[1] http://patchwork.ozlabs.org/patch/1120864/
[2] http://patchwork.ozlabs.org/project/linux-tegra/list/?series=115608