Files
linux/drivers/tty/serial/cpm_uart
Christophe Leroy 01e1206955 tty: serial: cpm_uart - fix init when SMC is relocated
[ Upstream commit 06aaa3d066 ]

SMC relocation can also be activated earlier by the bootloader,
so the driver's behaviour cannot rely on selected kernel config.

When the SMC is relocated, CPM_CR_INIT_TRX cannot be used.

But the only thing CPM_CR_INIT_TRX does is to clear the
rstate and tstate registers, so this can be done manually,
even when SMC is not relocated.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 9ab9212014 ("cpm_uart: fix non-console port startup bug")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-31 07:28:49 +02:00
..