From: Vinod Koul <vkoul@kernel.org>
To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
Dan Williams <dan.j.williams@intel.com>,
Magnus Damm <magnus.damm@gmail.com>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Kieran Bingham <kieran@ksquared.org.uk>,
Geert Uytterhoeven <geert+renesas@glider.be>,
dmaengine@vger.kernel.org,
Hiroki Negishi <hiroki.negishi.bx@renesas.com>
Subject: [v3] dmaengine: rcar-dmac: clear channel register when error
Date: Mon, 9 Jul 2018 22:22:52 +0530 [thread overview]
Message-ID: <20180709165252.GG22377@vkoul-mobl> (raw)
On 03-07-18, 00:29, Kuninori Morimoto wrote:
>
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
>
> We need to clear channel register in error case as recovery.
> The channel is already stopped in such case, thus we don't need to call
> rcar_dmac_chan_halt() before clearing.
>
> rcar_dmac_chan_halt() will clear and confirm DE bit.
> But it will be failed because channel is already stopped in error case.
> In other words, we shouldn't call it then.
Applied, thanks
next reply other threads:[~2018-07-09 16:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-09 16:52 Vinod Koul [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-07-03 0:29 [v3] dmaengine: rcar-dmac: clear channel register when error Kuninori Morimoto
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