Re: [PATCH v2] dmaengine: rcar-dmac: enable descriptor mode on 40bit

2017-03-08 Thread Laurent Pinchart
Hi Morimoto-san, Thank you for the patch. On Wednesday 08 Mar 2017 00:42:54 Kuninori Morimoto wrote: > From: Kuninori Morimoto > > SYS-DMAC can use 40bit address transfer, and it supports Descriptor > Mode too. Current SYS-DMAC driver disables Descriptor Mode if it was > 40bit address today. Bu

Re: [PATCH v2] dmaengine: rcar-dmac: enable descriptor mode on 40bit

2017-03-08 Thread Geert Uytterhoeven
On Wed, Mar 8, 2017 at 1:42 AM, Kuninori Morimoto wrote: > From: Kuninori Morimoto > > SYS-DMAC can use 40bit address transfer, and it supports Descriptor > Mode too. Current SYS-DMAC driver disables Descriptor Mode if it was > 40bit address today. But it can use Descriptor Mode with 40bit if > t

[PATCH v2] dmaengine: rcar-dmac: enable descriptor mode on 40bit

2017-03-07 Thread Kuninori Morimoto
From: Kuninori Morimoto SYS-DMAC can use 40bit address transfer, and it supports Descriptor Mode too. Current SYS-DMAC driver disables Descriptor Mode if it was 40bit address today. But it can use Descriptor Mode with 40bit if transfer Source/Destination address are located in same 4GiB region in