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serial: 8250_bcm7271: Save/restore RTS in suspend/resume
[ Upstream commit 3182efd ] Commit 9cabe26 ("serial: 8250_bcm7271: UART errors after resuming from S2") prevented an early enabling of RTS during resume, but it did not actively restore the RTS state after resume. Fixes: 9cabe26 ("serial: 8250_bcm7271: UART errors after resuming from S2") Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220714031316.404918-1-f.fainelli@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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