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serial: core: restore of_node information in sysfs

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Since in v6.8-rc1, the of_node symlink under tty devices is
missing. This breaks any udev rules relying on this information.

Link the of_node information in the serial controller device with the
parent defined in the device tree. This will also apply to the serial
device which takes the serial controller as a parent device.

Fixes: b286f4e87e ("serial: core: Move tty and serdev to be children of serial core port device")
Cc: stable@vger.kernel.org
Signed-off-by: Aidan Stewart <astewart@tektelic.com>
Link: https://lore.kernel.org/r/20250617164819.13912-1-astewart@tektelic.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Aidan Stewart 2025-06-17 10:48:19 -06:00 • committed by Greg Kroah-Hartman
parent 747b52413e
commit d36f0e9a00
1 changed files with 1 additions and 0 deletions
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1
drivers/tty/serial/serial_base_bus.c
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@ -72,6 +72,7 @@ static int serial_base_device_init(struct uart_port *port,
dev->parent = parent_dev;
dev->bus = &serial_base_bus_type;
dev->release = release;
device_set_of_node_from_dev(dev, parent_dev);
if (!serial_base_initialized) {
dev_dbg(port->dev, "uart_add_one_port() called before arch_initcall()?\n");