[RFC PATCH v4] tty: pl011: Avoid spuriously stuck-off interrupts

[Peter Maydell]

On 26 April 2018 at 11:54, Dave Martin <Dave.Martin at arm.com> wrote:
> This is an update to a previous RFC v3 [1], to fix a problem observed by
> the qemu community that causes serial input to hang when booting a
> simulated system with data already queued in the UART FIFO [2].
>
> RFC v3 did not solve the problem by itself, due to the problem being
> triggered again in pl011_enable_interrupts() after working around it
> in pl011_hwinit().  See the updated commit message in the patch for
> details.
>
> This patch is intended to supersede the previous RFCs, so please test
> _without_ RFC v2 (or 3) applied.
>
> If you can, please:
>
>  a) Check that you can still reproduce the bug on mainline without this
>     patch.
>
>  b) Check whether this patch fixes the problem.

Adding back to the CC list the people who might be able to do
this testing...
Link to v4 patch:
https://patchwork.kernel.org/patch/10365551/

thanks
-- PMM