On Thu, 2015-01-08 at 14:59 +0000, Ian Campbell wrote: > On Thu, 2014-12-11 at 13:15 +0100, Tim Deegan wrote: > > At 10:09 +0530 on 09 Dec (1418116195), vijay.kil...@gmail.com wrote: > > > From: Vijaya Kumar K <vijaya.ku...@caviumnetworks.com> > > > > > > In pl011.c, when TX interrupt is received > > > serial_tx_interrupt() is called to push next > > > characters. If TX buffer is empty, serial_tx_interrupt() > > > does not disable TX interrupt and hence pl011 UART > > > irq handler pl011_interrupt() always sees TX interrupt > > > status set in MIS register and cpu does not come out of > > > UART irq handler. > > > > > > With this patch, mask TX interrupt by writing 0 to > > > IMSC register when TX buffer is empty and unmask by > > > writing 1 to IMSC register before sending characters. > > > > > > Signed-off-by: Vijaya Kumar K <vijaya.ku...@caviumnetworks.com> > > > > Reviewed-by: Tim Deegan <t...@xen.org> > > Since Keir hasn't objected I've now applied, thanks. > > Should this be a candidate for backporting (to 4.4 and/or 4.5)?
It didn't cherry-pick cleanly and since none of the platforms supported by 4.4 seemed affected I think we should skip it in that tree. I'll consider it for 4.5 once that opens for backports. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
