Commit e1da95ae authored by Rafael J. Wysocki's avatar Rafael J. Wysocki Committed by Linus Torvalds

[PATCH] suspend: make it possible to disable serial console suspend

Hack uart_suspend_port() and uart_resume_port() so that serial console
ports are not suspended if CONFIG_DISABLE_CONSOLE_SUSPEND is set.

This makes it possible to debug the suspend and resume routines of all
device drivers as well as the lowest-level swsusp code with the help of the
serial console.
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
Acked-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent c8eb8b40
......@@ -1929,6 +1929,13 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port)
mutex_lock(&state->mutex);
#ifdef CONFIG_DISABLE_CONSOLE_SUSPEND
if (uart_console(port)) {
mutex_unlock(&state->mutex);
return 0;
}
#endif
if (state->info && state->info->flags & UIF_INITIALIZED) {
const struct uart_ops *ops = port->ops;
......@@ -1967,6 +1974,13 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
mutex_lock(&state->mutex);
#ifdef CONFIG_DISABLE_CONSOLE_SUSPEND
if (uart_console(port)) {
mutex_unlock(&state->mutex);
return 0;
}
#endif
uart_change_pm(state, 0);
/*
......
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