linux-kernel - Re: [PATCH v3] dmaengine: rcar-dmac: use TCRB instead of TCR for residue

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Message-ID: <20171108083710.GP3187@localhost>
Date:   Wed, 8 Nov 2017 14:07:10 +0530
From:   Vinod Koul <vinod.koul@...el.com>
To:     Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Niklas Söderlund 
        <niklas.soderlund+renesas@...natech.se>, dmaengine@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@...esas.com>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v3] dmaengine: rcar-dmac: use TCRB instead of TCR for
 residue

On Wed, Nov 08, 2017 at 06:33:33AM +0000, Kuninori Morimoto wrote:
> 
> Hi Vinod
> 
> > > > > This is now commit 847449f23dcbff68 ("dmaengine: rcar-dmac: use TCRB
> > > > > instead of TCR for residue") in slave-dma/next, and breaks serial console
> > > > > input on koelsch (shmobile_defconfig) and salvator-x (renesas_defconfig).
> > > > > Reverting that commit fixes the issue for me.
> > > 
> > > Okay since we are close to merge window I can drop this patch for now,
> > > unless we identify the fix very quickly
> > 
> > I have not seen a resolution to this, so reverted it.
> 
> We are sorry, but we still don't have solution about this.

thats okay, reverted seemed best in this situation. Once we have a solution
we can apply and mark to stable.

-- 
~Vinod