On Fri, May 28, 2021 at 09:37:43AM +0800, Qii Wang wrote: > On Thu, 2021-05-27 at 22:14 +0200, Wolfram Sang wrote: > > On Thu, May 27, 2021 at 08:04:04PM +0800, qii.wang@mediatek.com wrote: > > > From: Qii Wang > > > > > > 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 > > > > 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") Added this tag and applied to for-current, thanks!