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Date: Sat, 21 Nov 2015 18:59:22 -0800 From: Soren Brinkmann <soren.brinkmann@...inx.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.com> CC: Michal Simek <michal.simek@...inx.com>, <linux-serial@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, "Peter Hurley" <peter@...leysoftware.com>, Soren Brinkmann <soren.brinkmann@...inx.com> Subject: [PATCH LINUX v3 00/10] tty: xuartps: Fix lock ups Hi, here is v3 of this series. It's largely the same as before, but I adjusted 'tty: xuartps: Don't consider circular buffer when enabling transmitter' according to Peter's suggestions. I also spent some time trying to get Peter's test for flow control and xchar running. The xchar thing fails and will need some more work, but I think in general it should be possible to get it to work. The flow control test passes: root@...inx-ZC1751-DC1:~# ./flow /dev/ttyPS0 Test flow control on /dev/ttyPS0 begin test1 patterns sent: 223 recvd: 208 read distribution: 1 = 0 2+ = 0 4+ = 0 8+ = 0 16+ = 0 32+ = 643 64+ = 0 128+ = 0 256+ = 0 512+ = 0 PASSED root@...inx-ZC1751-DC1:~# ./flow /dev/ttyPS1 Test flow control on /dev/ttyPS1 begin test1 patterns sent: 223 recvd: 208 read distribution: 1 = 0 2+ = 0 4+ = 0 8+ = 0 16+ = 0 32+ = 643 64+ = 0 128+ = 0 256+ = 0 512+ = 0 PASSED Sören Sören Brinkmann (10): 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: Keep lock for whole ISR tty: xuartps: Acquire port lock for shutdown tty: xuartps: Move RX path into helper function tty: xuartps: Only handle RX IRQs when RX is enabled tty: xuartps: Cleanup: Reformat if-else drivers/tty/serial/xilinx_uartps.c | 246 +++++++++++++++++++++---------------- 1 file changed, 137 insertions(+), 109 deletions(-) -- 2.6.3.3.g9bb996a -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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