linux-kernel - Re: [PATCH 2/5] iommu/sun50i: Support variants without an external reset

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Date:   Thu, 28 Apr 2022 09:43:59 +0200
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Samuel Holland <samuel@...lland.org>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        iommu@...ts.linux-foundation.org
Cc:     Heiko Stuebner <heiko@...ech.de>,
        Palmer Dabbelt <palmer@...belt.com>,
        linux-riscv@...ts.infradead.org, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Ripard <mripard@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH 2/5] iommu/sun50i: Support variants without an external
 reset

Hi Samuel,

On Mi, 2022-04-27 at 20:03 -0500, Samuel Holland wrote:
> The IOMMU in the Allwinner D1 SoC does not have an external reset line.
> 
> Only attempt to get the reset on hardware variants which should have one
> according to the binding. And switch from the deprecated function to the
> explicit "exclusive" variant.
> 
> Signed-off-by: Samuel Holland <samuel@...lland.org>

Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp