linux-kernel - [PATCH 13/21] i2c: core: Probe i2c master devices on demand

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Message-Id: <1432565608-26036-14-git-send-email-tomeu.vizoso@collabora.com>
Date:	Mon, 25 May 2015 16:53:17 +0200
From:	Tomeu Vizoso <tomeu.vizoso@...labora.com>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Stéphane Marchesin 
	<stephane.marchesin@...il.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Alexander Holler <holler@...oftware.de>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	Wolfram Sang <wsa@...-dreams.de>, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 13/21] i2c: core: Probe i2c master devices on demand

When looking up an i2c master through its DT node, ensure that the
corresponding device has been registered.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@...labora.com>
---
 drivers/i2c/i2c-core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 987c124..8c9352e 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -40,6 +40,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
+#include <linux/of_platform.h>
 #include <linux/clk/clk-conf.h>
 #include <linux/completion.h>
 #include <linux/hardirq.h>
@@ -1339,6 +1340,8 @@ struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node)
 {
 	struct device *dev;
 
+	of_platform_device_ensure(node);
+
 	dev = bus_find_device(&i2c_bus_type, NULL, node,
 					 of_dev_node_match);
 	if (!dev)
-- 
2.4.1

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