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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 2/5] of: platform: optimize of_find_device_by_node when deep probing
Date: Mon,  5 Sep 2022 12:35:43 +0200	[thread overview]
Message-ID: <20220905103546.1476277-3-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20220905103546.1476277-1-a.fatoum@pengutronix.de>

With deep probe enabled, we are guaranteed that struct device_node::dev
is populated whenever a device had been created for a node, so in that
case, skip the iteration over the linked list of registered devices.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 drivers/of/platform.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 7f377b8b378a..dc784ea8e550 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -28,6 +28,9 @@ struct device_d *of_find_device_by_node(struct device_node *np)
 	if (ret)
 		return NULL;
 
+	if (deep_probe_is_supported())
+		return np->dev;
+
 	for_each_device(dev)
 		if (dev->device_node == np)
 			return dev;
-- 
2.30.2




  parent reply	other threads:[~2022-09-05 13:32 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-05 10:35 [PATCH 0/5] commands: gpio: add controller as optional argument Ahmad Fatoum
2022-09-05 10:35 ` [PATCH 1/5] gpiolib: implement gpio_get_chip_by_dev() Ahmad Fatoum
2022-09-05 10:35 ` Ahmad Fatoum [this message]
2022-09-05 10:35 ` [PATCH 3/5] driver: implement find_device() helper Ahmad Fatoum
2022-09-05 10:35 ` [PATCH 4/5] commands: gpio: add -d argument to set/get commands Ahmad Fatoum
2022-09-28 13:37   ` Enrico Scholz
2022-09-28 14:36     ` Sascha Hauer
2022-09-29  9:50     ` Ahmad Fatoum
2022-09-05 10:35 ` [PATCH 5/5] gpiolib: gpioinfo: add optional CONTROLLER command line argument Ahmad Fatoum
2022-09-28 13:22   ` Enrico Scholz
2022-09-28 14:24     ` Sascha Hauer
2022-09-12  9:13 ` [PATCH 0/5] commands: gpio: add controller as optional argument Sascha Hauer

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