Re: [PATCH v3 1/3] i2c: imx: Fix race condition in dma read

2018-08-16 Thread Uwe Kleine-König
On Thu, Aug 09, 2018 at 02:32:05PM +0200, Esben Haabendal wrote: > From: Esben Haabendal > > This fixes a race condition, where the DMAEN bit ends up being set after > I2C slave has transmitted a byte following the dummy read. When that > happens, an interrupt is generated instead, and no DMA re

[PATCH v3 1/3] i2c: imx: Fix race condition in dma read

2018-08-09 Thread Esben Haabendal
From: Esben Haabendal This fixes a race condition, where the DMAEN bit ends up being set after I2C slave has transmitted a byte following the dummy read. When that happens, an interrupt is generated instead, and no DMA request is generated to kickstart the DMA read, and a timeout happens after D