From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 8 Nov 2017 05:31:45 +0000 (+0530)
Subject: dmaengine: Revert "rcar-dmac: use TCRB instead of TCR for residue"
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=087ffdd2880b5dd7724ac6d0ca663da398fe1ccf;p=linux.git

dmaengine: Revert "rcar-dmac: use TCRB instead of TCR for residue"

This reverts commit 847449f23dcb: ("dmaengine: rcar-dmac: use TCRB instead
of TCR for residue") as it breaks small serial console.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 50c4950050bea..2b2c7db3e4804 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1310,7 +1310,7 @@ static unsigned int rcar_dmac_chan_get_residue(struct rcar_dmac_chan *chan,
 	}
 
 	/* Add the residue for the current chunk. */
-	residue += rcar_dmac_chan_read(chan, RCAR_DMATCRB) << desc->xfer_shift;
+	residue += rcar_dmac_chan_read(chan, RCAR_DMATCR) << desc->xfer_shift;
 
 	return residue;
 }