linux-kernel - Re: [PATCH v5 4/6] drm/sprd: add Unisoc's drm display controller driver

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Message-ID: <YKI26bZGAA+ZNLLj@8bytes.org>
Date:   Mon, 17 May 2021 11:27:05 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Kevin Tang <kevin3.tang@...il.com>
Cc:     Maxime Ripard <maxime@...no.tech>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        ML dri-devel <dri-devel@...ts.freedesktop.org>,
        devicetree@...r.kernel.org, Robin Murphy <robin.murphy@....com>
Subject: Re: [PATCH v5 4/6] drm/sprd: add Unisoc's drm display controller
 driver

On Fri, Apr 30, 2021 at 08:20:10PM +0800, Kevin Tang wrote:
> Cc  Robin & Joerg

This is just some GPU internal MMU being used here, it seems. It doesn't
use the IOMMU core code, so no Ack needed from the IOMMU side.

Regards,

	Joerg