of: platform: Batch fwnode parsing when adding all top level devices

The fw_devlink_pause() and fw_devlink_resume() APIs allow batching the parsing of the device tree nodes when a lot of devices are added. This will significantly cut down parsing time (as much a 1 second on some systems). So, use them when adding devices for all the top level device tree nodes in a system. Signed-off-by: Saravana Kannan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
bardliao · May 15, 2020 · 93d2e43 · 93d2e43
1 parent 716a7a2
commit 93d2e43
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
@@ -538,7 +538,9 @@ static int __init of_platform_default_populate_init(void)
 	}
 
 	/* Populate everything else. */
+	fw_devlink_pause();
 	of_platform_default_populate(NULL, NULL, NULL);
+	fw_devlink_resume();
 
 	return 0;
 }