tpm, tpm_tis: Request threaded interrupt handler

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commit 0c7e66e5fd upstream.

The TIS interrupt handler at least has to read and write the interrupt
status register. In case of SPI both operations result in a call to
tpm_tis_spi_transfer() which uses the bus_lock_mutex of the spi device
and thus must only be called from a sleepable context.

To ensure this request a threaded interrupt handler.

Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
Tested-by: Michael Niewöhner <linux@mniewoehner.de>
Tested-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Lino Sanfilippo 2022-11-24 14:55:34 +01:00 • committed by Greg Kroah-Hartman

parent 77ee4f8c02

commit 3264d875f5

1 changed files with 5 additions and 2 deletions

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drivers/char/tpm/tpm_tis_core.c

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