i2c: sirf: register i2c_client from dt child-nodes in probe entry

in probe() entry of i2c_driver, set the of node of adapter and
call of_i2c_register_devices to register all i2c_client from
dt child-nodes
Signed-off-by: NBarry Song <Baohua.Song@csr.com>
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>

drivers/i2c/busses/i2c-sirf.c

@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
+#include <linux/of_i2c.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
@@ -328,6 +329,7 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
 	adap->algo = &i2c_sirfsoc_algo;
 	adap->algo_data = siic;
 
+	adap->dev.of_node = pdev->dev.of_node;
 	adap->dev.parent = &pdev->dev;
 	adap->nr = pdev->id;
 
@@ -371,6 +373,8 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
 
 	clk_disable(clk);
 
+	of_i2c_register_devices(adap);
+
 	dev_info(&pdev->dev, " I2C adapter ready to operate\n");
 
 	return 0;