lkml.org 
[lkml]   [2021]   [May]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] i2c: mediatek: Disable i2c start_en and clear intr_stat brfore reset
From
Date
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")

\
 
 \ /
  Last update: 2021-05-28 03:38    [W:0.059 / U:0.152 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site