On Thu, 2021-05-27 at 22:14 +0200, Wolfram Sang wrote: > On Thu, May 27, 2021 at 08:04:04PM +0800, qii.wang@xxxxxxxxxxxx wrote: > > From: Qii Wang <qii.wang@xxxxxxxxxxxx> > > > > The i2c controller driver do dma reset after transfer timeout, > > but sometimes dma reset will trigger an unexpected DMA_ERR irq. > > It will cause the i2c controller to continuously send interrupts > > to the system and cause soft lock-up. So we need to disable i2c > > start_en and clear intr_stat to stop i2c controller before dma > > reset when transfer timeout. > > > > Signed-off-by: Qii Wang <qii.wang@xxxxxxxxxxxx> > > Is there a suitable Fixes tag for this? > Can you help to add the following tag, thanks Fixes: aafced673c06("i2c: mediatek: move dma reset before i2c reset")