gpio: xilinx: Remove duplicate assignment of of_gpio_n_cells

The of_gpio_n_cells default is 2 when ->of_xlate() callback is
not defined. No need to assign it explicitly in the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

drivers/gpio/gpio-xilinx.c

@@ -558,7 +558,6 @@ static int xgpio_probe(struct platform_device *pdev)
 	int status = 0;
 	struct device_node *np = pdev->dev.of_node;
 	u32 is_dual = 0;
-	u32 cells = 2;
 	u32 width[2];
 	u32 state[2];
 	u32 dir[2];
@@ -591,15 +590,6 @@ static int xgpio_probe(struct platform_device *pdev)
 
 	bitmap_from_arr32(chip->dir, dir, 64);
 
-	/* Update cells with gpio-cells value */
-	if (of_property_read_u32(np, "#gpio-cells", &cells))
-		dev_dbg(&pdev->dev, "Missing gpio-cells property\n");
-
-	if (cells != 2) {
-		dev_err(&pdev->dev, "#gpio-cells mismatch\n");
-		return -EINVAL;
-	}
-
 	/*
 	 * Check device node and parent device node for device width
 	 * and assume default width of 32
@@ -630,7 +620,6 @@ static int xgpio_probe(struct platform_device *pdev)
 	chip->gc.parent = &pdev->dev;
 	chip->gc.direction_input = xgpio_dir_in;
 	chip->gc.direction_output = xgpio_dir_out;
-	chip->gc.of_gpio_n_cells = cells;
 	chip->gc.get = xgpio_get;
 	chip->gc.set = xgpio_set;
 	chip->gc.request = xgpio_request;