Files
rockchip-kernel/drivers/tty
Grant Grundler 20ec9f7453 CHROMIUM: storm: msm: disable UART_IMR_RXBREAK_START
Unmasking UART_IMR_RXBREAK_START is potentially dangerous.
Masking UART_IMR_RXBREAK_START avoids "hung task" panics.

Theory is we are getting a stray break on the line and that's
causing this interrupt to trigger.  The code to handle the rx
break start wasn't cherry-picked into chromeos-3.14 branch
when we resolved the agetty RX issues.

Thanks to Stephen Boyd for pointing this out.

BUG=chrome-os-partner:33949
TEST=boot with and without serial console connected. Verify system does
not hang, panic, or reboot.

Change-Id: Ieb9581875b40798b9c5c7cc72257ea92d3ef4b21
Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/233897
Reviewed-by: Bryan Freed <bfreed@chromium.org>
2014-12-09 04:50:51 +00:00
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