linux-kernel - Re: [PATCH v2 03/19] spi: dw: Clear DMAC register when done or stopped

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Message-ID: <20200515164203.GJ5066@sirena.org.uk>
Date:   Fri, 15 May 2020 17:42:03 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Georgy Vlasov <Georgy.Vlasov@...kalelectronics.ru>,
        Ramil Zaripov <Ramil.Zaripov@...kalelectronics.ru>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Paul Burton <paulburton@...nel.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Arnd Bergmann <arnd@...db.de>,
        Allison Randal <allison@...utok.net>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Gareth Williams <gareth.williams.jx@...esas.com>,
        Rob Herring <robh+dt@...nel.org>, linux-mips@...r.kernel.org,
        devicetree@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@...el.com>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 03/19] spi: dw: Clear DMAC register when done or
 stopped

On Fri, May 15, 2020 at 01:47:42PM +0300, Serge Semin wrote:
> If DMAC register is left uncleared any further DMAless transfers
> may cause the DMAC hardware handshaking interface getting activated.

This and patch 4 look good as is but they don't apply against for-5.7
due to context changes in -next, unfortunately everyone seems to have
decided that now is the time to start working on this driver which makes
combinations of new work and fixes awkward.  I'm going to apply these
for 5.8 but it'd be good if you could send versions based on for-5.7 as
well so I can apply there - I can sort out the conflicts with 5.8.


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