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Date: Wed, 1 Nov 2017 03:07:09 +0000 From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com> To: Vinod Koul <vinod.koul@...el.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 Hi Geert, Vinod Geert, thank you for your report, Vinod, thank you for your quick help. > > > 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. This patch solved my issue (= sound noise), but it is transferring large size data. From "transferring data size" point of view, my sound situation is same as your large serial console input situation? I will ask this to HW guys. Thanks Best regards --- Kuninori Morimoto
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