serial: move delta_msr_wait into the tty_port
This is used by various drivers not just serial and can be extracted as commonality Signed-off-by: Alan Cox <alan@linux.intel.com>
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@@ -369,7 +369,7 @@ static void pmz_status_handle(struct uart_pmac_port *uap)
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uart_handle_cts_change(&uap->port,
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!(status & CTS));
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wake_up_interruptible(&uap->port.state->delta_msr_wait);
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wake_up_interruptible(&uap->port.state->port.delta_msr_wait);
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}
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if (status & BRK_ABRT)
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