Hi Fabio,
On Wed, 29 Jul 2015 13:24:07 -0300
Fabio Estevam <festevam@xxxxxxxxx> wrote:
> Hi David,
>
> On Wed, Jul 29, 2015 at 1:00 PM, David Jander <david@xxxxxxxxxxx> wrote:
> > If the UART has been in use before this driver was loaded, IRQs might be
> > active and get fired as soon as we set the handler, which will crash
> > in the spin_lock_irqsave(&sport->port.lock, flags) because port.lock is
> > not initialized until the port is added at the end of probe.
> >
> > Signed-off-by: David Jander <david@xxxxxxxxxxx>
>
> Now I have a good console output, thanks!
Thanks for testing.
Just to be sure, from reading Chapter 63.3.2.1 of the i.MX6Q reference manual,
I understand that peripheral clock is needed for accessing registers, while ipg
clock ("module clock") is used for shift registers and state-machine. AFAICS,
enabling peripheral clock should be enough for resetting the UART. Do you agree
with this?
Best regards,
--
David Jander
Protonic Holland.
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