Hi Irina,

On Mon, Jun 08, 2015 at 05:37:49PM +0300, Irina Tirdea wrote:

+static int goodix_get_gpio_config(struct goodix_ts_data *ts)
+{
+	struct device *dev;
+	struct gpio_desc *gpiod;
+	int ret;
+
+	if (!ts->client)
+		return -EINVAL;
+	dev = &ts->client->dev;
+
+	/* Get interrupt GPIO pin number */
+	gpiod = devm_gpiod_get(dev, GOODIX_GPIO_INT_NAME, GPIOD_IN);
+	if (IS_ERR(gpiod)) {
+		ret = PTR_ERR(gpiod);
+		dev_err(dev, "Failed to get %s GPIO: %d\n",
+			GOODIX_GPIO_INT_NAME, ret);

You need to handle -EPROBE_DEFER (suppress error) and especially -ENOENT error
codes, otherwise, as Bastien mentioned, you will break existing DTS.

Thanks.

-- 
Dmitry