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Date: Wed, 13 May 2020 11:20:38 +0200 From: Sascha Hauer <s.hauer@...gutronix.de> To: Robin Gong <yibin.gong@....com> Cc: "vkoul@...nel.org" <vkoul@...nel.org>, "shawnguo@...nel.org" <shawnguo@...nel.org>, "u.kleine-koenig@...gutronix.de" <u.kleine-koenig@...gutronix.de>, "robh+dt@...nel.org" <robh+dt@...nel.org>, "festevam@...il.com" <festevam@...il.com>, "dan.j.williams@...el.com" <dan.j.williams@...el.com>, "mark.rutland@....com" <mark.rutland@....com>, "catalin.marinas@....com" <catalin.marinas@....com>, "will.deacon@....com" <will.deacon@....com>, "l.stach@...gutronix.de" <l.stach@...gutronix.de>, "martin.fuzzey@...wbird.group" <martin.fuzzey@...wbird.group>, "kernel@...gutronix.de" <kernel@...gutronix.de>, "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, dl-linux-imx <linux-imx@....com>, "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org> Subject: Re: [PATCH v7 RESEND 07/13] spi: imx: fix ERR009165 On Wed, May 13, 2020 at 08:52:39AM +0000, Robin Gong wrote: > On 2020/05/13 16:48 Sascha Hauer <s.hauer@...gutronix.de> wrote: > > On Wed, May 13, 2020 at 08:38:26AM +0000, Robin Gong wrote: > > > On 2020/05/13 Sascha Hauer <s.hauer@...gutronix.de> wrote: > > > > This patch is the one bisecting will end up with when somebody uses > > > > an older SDMA firmware or the ROM scripts. It should have a better > > > > description what happens and what should be done about it. > > > Emm..That's true. Timeout will be caught in such case, hence, maybe we can > > fall back it to pio always. > > > > With my patch applied sdma_load_context() will fail. I don't know how exactly > > this hits into the SPI driver, but it won't be a timeout. > Thanks for your quick test, assume you use ROM firmware, right? Yes. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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