pwm: jz4740: Pass device to clk_get()

In preparation to switching the jz4740 clk driver to the common clk framework
make sure to pass the device to clk_get().

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-jz4740.c

@@ -171,7 +171,7 @@ static int jz4740_pwm_probe(struct platform_device *pdev)
 	if (!jz4740)
 		return -ENOMEM;
 
-	jz4740->clk = clk_get(NULL, "ext");
+	jz4740->clk = clk_get(&pdev->dev, "ext");
 	if (IS_ERR(jz4740->clk))
 		return PTR_ERR(jz4740->clk);