[PATCH v4 03/10] gpio: mxc: use for_each_set_bit() to iterate wakeup pads

["Peng Fan (OSS)" <peng.fan@oss.nxp.com>]

From: Peng Fan <peng.fan@nxp.com>

Use for_each_set_bit() to iterate over the enabled wakeup pads instead
of checking every bit individually.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/gpio/gpio-mxc.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 627fff6f1886..1ff5c2afb2e8 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -593,22 +593,20 @@ static bool mxc_gpio_set_pad_wakeup(struct mxc_gpio_port *port, bool enable)
 		IMX_SCU_WAKEUP_LOW_LVL,		/* IRQ_TYPE_LEVEL_LOW */
 	};
 
-	for (i = 0; i < 32; i++) {
-		if ((port->wakeup_pads & (1 << i))) {
-			type = port->pad_type[i];
-			if (enable)
-				config = pad_type_map[type];
-			else
-				config = IMX_SCU_WAKEUP_OFF;
-
-			if (is_imx8qm && config == IMX_SCU_WAKEUP_FALL_EDGE) {
-				dev_warn_once(port->dev,
-					      "No falling-edge support for wakeup on i.MX8QM\n");
-				config = IMX_SCU_WAKEUP_OFF;
-			}
+	for_each_set_bit(i, &port->wakeup_pads, 32) {
+		type = port->pad_type[i];
+		if (enable)
+			config = pad_type_map[type];
+		else
+			config = IMX_SCU_WAKEUP_OFF;
 
-			ret |= mxc_gpio_generic_config(port, i, config);
+		if (is_imx8qm && config == IMX_SCU_WAKEUP_FALL_EDGE) {
+			dev_warn_once(port->dev,
+				      "No falling-edge support for wakeup on i.MX8QM\n");
+			config = IMX_SCU_WAKEUP_OFF;
 		}
+
+		ret |= mxc_gpio_generic_config(port, i, config);
 	}
 
 	return ret;

-- 
2.51.0