linux-kernel - Re: [PATCH 1/2] mmc: uniphier-sd: fix DMA disabling

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Message-ID: <20181014223329.GF3260@kunai>
Date:   Mon, 15 Oct 2018 00:33:29 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-mmc@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] mmc: uniphier-sd: fix DMA disabling

On Fri, Oct 12, 2018 at 11:57:37PM +0900, Masahiro Yamada wrote:
> Once DMA is enabled, it is not possible to disable it because
> uniphier_sd_dma_endisable() always sets the DMA_ENABLE_DMASDRW bit
> regardless of the argument 'enable'. It should disable DMA when
> 'enable' is false.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>

Acked-by: Wolfram Sang <wsa+renesas@...g-engineering.com>


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