From: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Upstream-Status: Pending.
Prevent console to sleep during start-up stage.
Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
drivers/tty/serial/8250/8250_port.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/tty/serial/8250/8250_port.c
b/drivers/tty/serial/8250/8250_port.c
index 830d453..0900b56 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2895,6 +2895,12 @@ int serial8250_console_setup(struct uart_port *port,
char *options, bool probe)
else if (probe)
baud = probe_baud(port);
+ /* At early stage device is not created yet, we can't do PM */
+ if (port->dev) {
+ /* Prevent all kind of power management of this port */
+ pm_runtime_get_noresume(port->dev);
+ }
+
return uart_set_options(port, port->cons, baud, parity, bits, flow);
}
--
1.9.1
--
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