1 files changed, 33 insertions, 3 deletions

diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
index 00b5b456063d..92bbebd31598 100644
--- a/drivers/mfd/max8925-i2c.c
+++ b/drivers/mfd/max8925-i2c.c
@@ -135,13 +135,37 @@ static const struct i2c_device_id max8925_id_table[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max8925_id_table);
 
+static int max8925_dt_init(struct device_node *np, struct device *dev,
+                           struct max8925_platform_data *pdata)
+{
+        int ret;
+
+        ret = of_property_read_u32(np, "maxim,tsc-irq", &pdata->tsc_irq);
+        if (ret) {
+                dev_err(dev, "Not found maxim,tsc-irq property\n");
+                return -EINVAL;
+        }
+        return 0;
+}
+
 static int max8925_probe(struct i2c_client *client,
                                    const struct i2c_device_id *id)
 {
         struct max8925_platform_data *pdata = client->dev.platform_data;
         static struct max8925_chip *chip;
-
-        if (!pdata) {
+        struct device_node *node = client->dev.of_node;
+
+        if (node && !pdata) {
+                /* parse DT to get platform data */
+                pdata = devm_kzalloc(&client->dev,
+                                     sizeof(struct max8925_platform_data),
+                                     GFP_KERNEL);
+                if (!pdata)
+                        return -ENOMEM;
+
+                if (max8925_dt_init(node, &client->dev, pdata))
+                        return -EINVAL;
+        } else if (!pdata) {
                 pr_info("%s: platform data is missing\n", __func__);
                 return -EINVAL;
         }
@@ -203,11 +227,18 @@ static int max8925_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(max8925_pm_ops, max8925_suspend, max8925_resume);
 
+static const struct of_device_id max8925_dt_ids[] = {
+        { .compatible = "maxim,max8925", },
+        {},
+};
+MODULE_DEVICE_TABLE(of, max8925_dt_ids);
+
 static struct i2c_driver max8925_driver = {
         .driver = {
                 .name   = "max8925",
                 .owner  = THIS_MODULE,
                 .pm     = &max8925_pm_ops,
+                .of_match_table = of_match_ptr(max8925_dt_ids),
         },
         .probe          = max8925_probe,
         .remove         = max8925_remove,
@@ -217,7 +248,6 @@ static struct i2c_driver max8925_driver = {
 static int __init max8925_i2c_init(void)
 {
         int ret;
-
         ret = i2c_add_driver(&max8925_driver);
         if (ret != 0)
                 pr_err("Failed to register MAX8925 I2C driver: %d\n", ret);