linux-kernel - Re: [PATCH v7 9/9] spi: rockchip: modify DMA max burst to 1

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Message-ID: <20160209033428.GJ19598@localhost>
Date:	Tue, 9 Feb 2016 09:04:29 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Caesar Wang <wxt@...k-chips.com>
Cc:	Heiko Stuebner <heiko@...ech.de>,
	Sonny Rao <sonnyrao@...omium.org>, shawn.lin@...k-chips.com,
	dianders@...omium.org, linux-rockchip@...ts.infradead.org,
	Addy Ke <addy.ke@...k-chips.com>,
	Olof Johansson <olof@...om.net>,
	Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
	linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v7 9/9] spi: rockchip: modify DMA max burst to 1

On Fri, Jan 22, 2016 at 07:06:52PM +0800, Caesar Wang wrote:
> From: Addy Ke <addy.ke@...k-chips.com>
> 
> Generic dma controller on Rockchips' platform cannot support
> DMAFLUSHP instruction which make dma to flush the req of non-aligned
> or non-multiple of what we need. That will cause an unrecoverable
> dma bus error. The saftest way is to set dma max burst to 1.

Applied, thanks

-- 
~Vinod