Vincent Chen 630db5cbc7 tty: serial: Add CONSOLE_POLL support to SiFive UART ...

Add CONSOLE_POLL support for future KGDB porting.

Signed-off-by: Vincent Chen <vincent.chen@sifive.com>

Changes since v1:
1. Fix the compile error reported by kbuild test robot
Link: https://lore.kernel.org/r/1584492027-23236-1-git-send-email-vincent.chen@sifive.com

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-03-18 11:07:13 +01:00

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