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Date:   Thu, 14 May 2020 22:35:00 -0700
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References: <20200515053500.215929-1-saravanak@google.com>
Subject: [PATCH v1 4/4] of: platform: Batch fwnode parsing when adding all top
 level devices
From:   Saravana Kannan <saravanak@google.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Frank Rowand <frowand.list@gmail.com>,
        Len Brown <lenb@kernel.org>
Cc:     Saravana Kannan <saravanak@google.com>, kernel-team@android.com,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
        linux-acpi@vger.kernel.org, Ji Luo <ji.luo@nxp.com>
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Sender: linux-kernel-owner@vger.kernel.org
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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>
---
 drivers/of/platform.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 3371e4a06248..55d719347810 100644
--- 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;
 }
-- 
2.26.2.761.g0e0b3e54be-goog