rpmsg: char: Add device id_table for auto-probe

commit 16f94e5647161bea945daa3d991fc60bd9a4a199 from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git

The rpmsg char driver is not auto-probed for any rpmsg device
without relying on the device's driver_override feature. Add a
device id_table to the rpmsg-char driver to facilitate this
auto-probe. Any rpmsg device with the name "rpmsg_chrdev" will
be auto-probed to begin with.

The driver_override will continue to work just fine as well.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Subhajit Paul <subhajit_paul@ti.com>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>

drivers/rpmsg/rpmsg_char.c

@@ -536,12 +536,19 @@ static void rpmsg_chrdev_remove(struct rpmsg_device *rpdev)
 	put_device(&ctrldev->dev);
 }
 
+static const struct rpmsg_device_id rpmsg_char_id_table[] = {
+	{ .name	= "rpmsg_chrdev" },
+	{ },
+};
+MODULE_DEVICE_TABLE(rpmsg, rpmsg_char_id_table);
+
 static struct rpmsg_driver rpmsg_chrdev_driver = {
 	.probe = rpmsg_chrdev_probe,
 	.remove = rpmsg_chrdev_remove,
 	.drv = {
 		.name = "rpmsg_chrdev",
 	},
+	.id_table = rpmsg_char_id_table,
 };
 
 static int rpmsg_char_init(void)