linux-kernel - RE: [PATCH V12 3/5] i2c: tegra: Add DMA support

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Message-ID: <BYAPR12MB3398E50ED1C6909D6BCB0DDFC26F0@BYAPR12MB3398.namprd12.prod.outlook.com>
Date:   Wed, 6 Feb 2019 13:03:54 +0000
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     Dmitry Osipenko <digetx@...il.com>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mantravadi Karthik <mkarthik@...dia.com>,
        Shardar Mohammed <smohammed@...dia.com>,
        Timo Alho <talho@...dia.com>
CC:     "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>
Subject: RE: [PATCH V12 3/5] i2c: tegra: Add DMA support

> BTW, I'm seeing "atmel_mxt_ts 0-004c: Warning: Info CRC error - device=0xF436DC file=0x000000" whithout making any modifications to the original patch as well and it shall not happen, hence there is bug somewhere. Probably FIFO triggers are still not set up correctly... ?
>
>
In snippet you sent, I see you are forcing dma_burst to 1 always which is what set for fifo trigger levels as well and also you are forcing dma all the time.
So always it will be 1 word dma burst and 1 word trigger level and that should not be an issue.