Messages in this thread | | | Subject | Re: [PATCH] i2c: mediatek: Disable i2c start_en and clear intr_stat brfore reset | From | Qii Wang <> | Date | Fri, 28 May 2021 09:37:43 +0800 |
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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 <qii.wang@mediatek.com> > > > > 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@mediatek.com> > > 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")
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