linux-kernel - Re: [PATCH v2] net: ethernet: ti: davinci_cpdma: fix fixed prio cpdma ctlr configuration

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Date:   Sun, 13 Nov 2016 13:40:40 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     ivan.khoronzhuk@...aro.org
Cc:     mugunthanvnm@...com, grygorii.strashko@...com,
        netdev@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: ethernet: ti: davinci_cpdma: fix fixed prio
 cpdma ctlr configuration

From: Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>
Date: Fri, 11 Nov 2016 15:45:24 +0200

> The dma ctlr is reseted to 0 while cpdma soft reset, thus cpdma ctlr
> cannot be configured after cpdma is stopped. So restoring content
> of cpdma ctlr while off/on procedure is needed. The cpdma ctlr off/on
> procedure is present while interface down/up and while changing number
> of channels with ethtool. In order to not restore content in many
> places, move it to cpdma_ctlr_start().
> 
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>

Applied.