[PATCH LINUX v4 00/13] tty: xuartps: Fix lock ups

From: Soren Brinkmann
Date: Sat Dec 05 2015 - 23:41:50 EST


Hi,

I picked up all the review tags from Peter and Moritz and addressed
Peter's comments.
Most patches are unchanged but I added the info Peter suggested/provided
to some commit messages.
The patches "tty: xuartps: Move request_irq to after setting up the HW",
"tty: xuartps: Improve sysrq handling" and "tty: xuartps: Remove
'_OFFSET' suffix from #defines" are new, implementing the suggestions
Peter made in the v3 review (https://lkml.org/lkml/2015/11/21/172).
I pretty much rewrote "tty: xuartps: Refactor IRQ handling" (was: "tty:
xuartps: Only handle RX IRQs when RX is enabled"). Instead of adding a
flag, we now disable/enable the RX interrupts together with the
receiver. That should prevent the RX lock ups I saw.

Thanks,
SÃren

SÃren Brinkmann (13):
tty: xuartps: Beautify read-modify writes
tty: xuartps: Use spinlock to serialize HW access
tty: xuartps: Don't consider circular buffer when enabling transmitter
tty: xuartps: Clear interrupt status register in shutdown
tty: xuartps: Improve startup function
tty: xuartps: Move request_irq to after setting up the HW
tty: xuartps: Keep lock for whole ISR
tty: xuartps: Acquire port lock for shutdown
tty: xuartps: Move RX path into helper function
tty: xuartps: Refactor IRQ handling
tty: xuartps: Cleanup: Reformat if-else
tty: xuartps: Improve sysrq handling
tty: xuartps: Remove '_OFFSET' suffix from #defines

drivers/tty/serial/xilinx_uartps.c | 451 ++++++++++++++++++-------------------
1 file changed, 224 insertions(+), 227 deletions(-)

--
2.6.3.3.g9bb996a

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