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

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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 <saravanak@google.com>
Link: https://lore.kernel.org/r/20200515053500.215929-5-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Saravana Kannan 2020-05-14 22:35:00 -07:00 committed by Greg Kroah-Hartman
parent 716a7a2596
commit 93d2e4322a
1 changed files with 2 additions and 0 deletions
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drivers/of/platform.c
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@ -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;
}