diff --git a/drivers/gpio/gpio-pisosr.c b/drivers/gpio/gpio-pisosr.c
index 7ec6a46ed600..2732ea8c16b7 100644
--- a/drivers/gpio/gpio-pisosr.c
+++ b/drivers/gpio/gpio-pisosr.c
@@ -112,6 +112,7 @@ static int pisosr_gpio_probe(struct spi_device *spi)
 {
 	struct device *dev = &spi->dev;
 	struct pisosr_gpio *gpio;
+	u32 ngpios;
 	int ret;
 
 	gpio = devm_kzalloc(dev, sizeof(*gpio), GFP_KERNEL);
@@ -120,7 +121,8 @@ static int pisosr_gpio_probe(struct spi_device *spi)
 
 	gpio->chip = template_chip;
 	gpio->chip.parent = dev;
-	of_property_read_u16(dev->of_node, "ngpios", &gpio->chip.ngpio);
+	if (!of_property_read_u32(dev->of_node, "ngpios", &ngpios))
+		gpio->chip.ngpio = ngpios;
 
 	gpio->spi = spi;