firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng

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When Marvell's rWTM firmware, which does not support the GET_RANDOM
command, is used, kernel prints an error message
  hwrng: no data available
every 10 seconds.

Fail probing of this driver if the rWTM firmware does not support the
GET_RANDOM command.

Fixes: 389711b374 ("firmware: Add Turris Mox rWTM firmware driver")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

...

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Pali Rohár 2021-05-20 13:35:19 +02:00 • committed by Gregory CLEMENT

parent 72f9988894

commit 2eab59cf0d

1 changed files with 28 additions and 0 deletions

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drivers/firmware/turris-mox-rwtm.c

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