gpio: gpiolib-of.c: make error message more meaningful by adding the node name and index

Signed-off-by: NLothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpiolib-of.c

@@ -76,7 +76,8 @@ int of_get_named_gpio_flags(struct device_node *np, const char *propname,
 	ret = of_parse_phandle_with_args(np, propname, "#gpio-cells", index,
 					 &gg_data.gpiospec);
 	if (ret) {
-		pr_debug("%s: can't parse gpios property\n", __func__);
+		pr_debug("%s: can't parse gpios property of node '%s[%d]'\n",
+			__func__, np->full_name, index);
 		return ret;
 	}