Pass a pointer to device-tree node in case the driver probed from
OF. This makes early console drivers able to fetch options from
device-tree node properties.
Signed-off-by: Markuss Broks <[email protected]>
---
drivers/tty/serial/earlycon.c | 3 +++
include/linux/serial_core.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 4f6e9bf57169..0c7a789d7eb7 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -307,6 +307,9 @@ int __init of_setup_earlycon(const struct earlycon_id *match,
strscpy(early_console_dev.options, options,
sizeof(early_console_dev.options));
}
+
+ early_console_dev.node = node;
+
earlycon_init(&early_console_dev, match->name);
err = match->setup(&early_console_dev, options);
earlycon_print_info(&early_console_dev);
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index fd59f600094a..0b06c0ee7705 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -783,6 +783,7 @@ struct earlycon_device {
struct uart_port port;
char options[16]; /* e.g., 115200n8 */
unsigned int baud;
+ unsigned long node;
};
struct earlycon_id {
--
2.39.0