linux-kernel - Re: [PATCH] gpu: host1x: Free the IOMMU domain when there is no device to attach

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Message-ID: <20170727164541.GA25081@ulmo>
Date:   Thu, 27 Jul 2017 18:45:41 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Paul Kocialkowski <contact@...lk.fr>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jonathan Hunter <jonathanh@...dia.com>,
        Stephen Warren <swarren@...dotorg.org>,
        Mikko Perttunen <mperttunen@...dia.com>
Subject: Re: [PATCH] gpu: host1x: Free the IOMMU domain when there is no
 device to attach

On Mon, Jul 10, 2017 at 09:33:05PM +0200, Paul Kocialkowski wrote:
> When there is no device to attach to the IOMMU domain, as may be the
> case when the device-tree does not contain the proper iommu node, it is
> best to keep going without IOMMU support rather than failing.
> This allows the driver to probe and function instead of taking down
> all of the tegra drm driver, leading to missing display support.
> 
> Signed-off-by: Paul Kocialkowski <contact@...lk.fr>
> ---
>  drivers/gpu/host1x/dev.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)

Applied to drm-misc-fixes, thanks.

Oh, just noticed now that this didn't actually go to the DRM mailing
list (dri-devel@...ts.freedesktop.org). Might be a good idea to do that
next time to get more visibility.

Thierry

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