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

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Date:   Fri, 15 May 2020 20:21:55 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     Mark Brown <broonie@...nel.org>
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 05:42:03PM +0100, Mark Brown wrote:
> 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.
> 

Thanks. I'll send these two patches:
spi: dw: Clear DMAC register when done or stopped
spi: dw: Fix native CS being unset
rebased on top of the for-5.7.

-Sergey