i2c: eg20t: set i2c_adapter->dev.of_node

Set the I2C adapter devices of_node to that of the PCI device, such that
I2C clients may be instantiated via device tree.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 76e699f..137125b 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -795,6 +795,7 @@
 		/* base_addr + offset; */
 		adap_info->pch_data[i].pch_base_address = base_addr + 0x100 * i;
 
+		pch_adap->dev.of_node = pdev->dev.of_node;
 		pch_adap->dev.parent = &pdev->dev;
 
 		pch_i2c_init(&adap_info->pch_data[i]);