On Wed, May 23, 2018 at 11:56:21AM +0200, Esben Haabendal wrote: > From: Esben Haabendal <eha@xxxxxxxx> > > 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 DMA_TIMEOUT (1 sec). > > Fixed by setting the DMAEN bit before the dummy read. Does this fix the problem or just narrow the race window? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |
