I2C: xiic: Add OF binding support
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 2bded76..641d0e5 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -40,6 +40,7 @@
#include <linux/i2c-xiic.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/of_i2c.h>
#define DRIVER_NAME "xiic-i2c"
@@ -705,8 +706,6 @@
goto resource_missing;
pdata = (struct xiic_i2c_platform_data *) pdev->dev.platform_data;
- if (!pdata)
- return -EINVAL;
i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
if (!i2c)
@@ -730,6 +729,7 @@
i2c->adap = xiic_adapter;
i2c_set_adapdata(&i2c->adap, i2c);
i2c->adap.dev.parent = &pdev->dev;
+ i2c->adap.dev.of_node = pdev->dev.of_node;
xiic_reinit(i2c);
@@ -748,9 +748,13 @@
goto add_adapter_failed;
}
- /* add in known devices to the bus */
- for (i = 0; i < pdata->num_devices; i++)
- i2c_new_device(&i2c->adap, pdata->devices + i);
+ if (pdata) {
+ /* add in known devices to the bus */
+ for (i = 0; i < pdata->num_devices; i++)
+ i2c_new_device(&i2c->adap, pdata->devices + i);
+ }
+
+ of_i2c_register_devices(&i2c->adap);
return 0;
@@ -795,12 +799,21 @@
return 0;
}
+#if defined(CONFIG_OF)
+static const struct of_device_id xiic_of_match[] __devinitconst = {
+ { .compatible = "xlnx,xps-iic-2.00.a", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, xiic_of_match);
+#endif
+
static struct platform_driver xiic_i2c_driver = {
.probe = xiic_i2c_probe,
.remove = __devexit_p(xiic_i2c_remove),
.driver = {
.owner = THIS_MODULE,
.name = DRIVER_NAME,
+ .of_match_table = of_match_ptr(xiic_of_match),
},
};