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serial_bcm283x_mu: Fail loading if not muxed
authorAlexander Graf <agraf@suse.de>
Thu, 25 Jan 2018 11:05:48 +0000 (12:05 +0100)
committerTom Rini <trini@konsulko.com>
Sun, 28 Jan 2018 17:27:34 +0000 (12:27 -0500)
commit09fce5c265e974dbbe54efe055f5bda57b94868a
treeca5c1473362ebcef7a48a3f4e2af551fc9252de1tree | snapshot
parent6ec2c28a9f126d40aa3c237476bc4229abe9bf4ccommit | diff
serial_bcm283x_mu: Fail loading if not muxed

The bcm283x mini-uart is only really usable as U-Boot serial output
when it is muxed to the UART pins of the RPi pin header.

So fail probing in case it is not muxed correctly, as in that case
firmware did not initialize it properly either.

Signed-off-by: Alexander Graf <agraf@suse.de>
drivers/serial/serial_bcm283x_mu.c diff | blob | history
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