linux-kernel - Re: Issues with i.MX SPI DMA transfers

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Date:   Thu, 18 Apr 2019 09:30:28 +0300
From:   Igor Plyatov <plyatov@...il.com>
To:     Robin Gong <yibin.gong@....com>
Cc:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>,
        Fabio Estevam <festevam@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        Vinod Koul <vkoul@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Andy Duan <fugang.duan@....com>, Han Xu <han.xu@....com>,
        Clark Wang <xiaoning.wang@....com>
Subject: Re: Issues with i.MX SPI DMA transfers

Dear Robin,

> Hi Igor,
> 	Did you meet any issue with my latest patch?

sorry, but unfortunately I have no time to test it.

I have switched to PIO mode and continue other development.

Maybe later I will find time to test DMA mode, but not sure when.

Thank you for support!

--

Igor Plyatov

>> -----Original Message-----
>> From: Robin Gong
>> Sent: April 9, 2019 11:26>
>> Hi Igor,
>> 	Please have a try with the attached patches, and revert 25aaa75df1e6,
>> ad0d92d7ba6a , dd4b487b32a3, df07101e1c4a before apply. Besides XCH, tx
>> thresh should be set to 0 , now no failure caught on ecspi5.
>>