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Message-ID: <b50df7c0-1005-4e90-a518-6abee33e7539@collabora.com>
Date: Fri, 28 Jun 2024 11:53:23 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Nícolas F. R. A. Prado <nfraprado@...labora.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Mathieu Poirier <mathieu.poirier@...aro.org>,
 Matthias Brugger <matthias.bgg@...il.com>, Tzung-Bi Shih <tzungbi@...nel.org>
Cc: kernel@...labora.com, linux-remoteproc@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] remoteproc: mediatek: Don't attempt to remap l1tcm memory
 if missing

Il 27/06/24 23:20, Nícolas F. R. A. Prado ha scritto:
> The current code doesn't check whether platform_get_resource_byname()
> succeeded to get the l1tcm memory, which is optional, before attempting
> to map it. This results in the following error message when it is
> missing:
> 
>    mtk-scp 10500000.scp: error -EINVAL: invalid resource (null)
> 
> Add a check so that the remapping is only attempted if the memory region
> exists. This also allows to simplify the logic handling failure to
> remap, since a failure then is always a failure.
> 
> Fixes: ca23ecfdbd44 ("remoteproc/mediatek: support L1TCM")
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>



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