linux-kernel - Re: [PATCH v9 05/14] spi: imx: fallback to PIO if dma setup failure

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Message-ID: <20200605150103.GG5413@sirena.org.uk>
Date:   Fri, 5 Jun 2020 16:01:03 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Robin Gong <yibin.gong@....com>
Cc:     mark.rutland@....com, robh+dt@...nel.org, catalin.marinas@....com,
        vkoul@...nel.org, will.deacon@....com, shawnguo@...nel.org,
        festevam@...il.com, s.hauer@...gutronix.de,
        martin.fuzzey@...wbird.group, u.kleine-koenig@...gutronix.de,
        dan.j.williams@...el.com, matthias.schiffer@...tq-group.com,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel@...gutronix.de, linux-imx@....com, dmaengine@...r.kernel.org
Subject: Re: [PATCH v9 05/14] spi: imx: fallback to PIO if dma setup failure

On Sat, Jun 06, 2020 at 05:32:26AM +0800, Robin Gong wrote:
> Fallback to PIO in case dma setup failed. For example, sdma firmware not
> updated but ERR009165 workaroud added in kernel.

Please do not submit new versions of already applied patches, please
submit incremental updates to the existing code.  Modifying existing
commits creates problems for other users building on top of those
commits so it's best practice to only change pubished git commits if
absolutely essential.

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