Hello Shengjiu,
On Wed, Jun 05, 2019 at 10:29:37AM +, S.j. Wang wrote:
> > > ETDR is not volatile, if we mark it is volatile, is it correct?
> >
> > Well, you have a point -- it might not be ideally true, but it sounds like a
> > correct fix to me according to this comments.
> >
> > We can
Hi
> > > > > Sounds like a bug to me...should fix it first by marking the
> > > > > data registers as volatile.
> > > > >
> > > > The ETDR is a writable register, it is not volatile. Even we
> > > > change it to Volatile, I don't think we can't avoid this issue.
> > > > for the regcache_sync Just
On Thu, May 23, 2019 at 11:04:03AM +, S.j. Wang wrote:
> > On Thu, May 23, 2019 at 09:53:42AM +, S.j. Wang wrote:
> > > > > + /*
> > > > > + * Add fifo reset here, because the regcache_sync will
> > > > > + * write one more data to ETDR.
> > > > > + * Which will cause
Hi
> On Thu, May 23, 2019 at 09:53:42AM +, S.j. Wang wrote:
> > > > + /*
> > > > + * Add fifo reset here, because the regcache_sync will
> > > > + * write one more data to ETDR.
> > > > + * Which will cause channel shift.
> > >
> > > Sounds like a bug to me...should fix it
Hello Shengjiu,
On Thu, May 23, 2019 at 09:53:42AM +, S.j. Wang wrote:
> > > + /*
> > > + * Add fifo reset here, because the regcache_sync will
> > > + * write one more data to ETDR.
> > > + * Which will cause channel shift.
> >
> > Sounds like a bug to me...should fix it
Hi
> > + /*
> > + * Add fifo reset here, because the regcache_sync will
> > + * write one more data to ETDR.
> > + * Which will cause channel shift.
>
> Sounds like a bug to me...should fix it first by marking the data registers as
> volatile.
>
The ETDR is a writable
On Fri, May 17, 2019 at 03:09:22AM +, S.j. Wang wrote:
> There is chip errata ERR008000, the reference doc is
> (https://www.nxp.com/docs/en/errata/IMX6DQCE.pdf),
>
> The issue is "While using ESAI transmit or receive and
> an underrun/overrun happens, channel swap may occur.
> The only
There is chip errata ERR008000, the reference doc is
(https://www.nxp.com/docs/en/errata/IMX6DQCE.pdf),
The issue is "While using ESAI transmit or receive and
an underrun/overrun happens, channel swap may occur.
The only recovery mechanism is to reset the ESAI."
In this commit add a tasklet to
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