diff --git a/drivers/pwm/pwm-raspberrypi-poe.c b/drivers/pwm/pwm-raspberrypi-poe.c
index e52e29fc8231..6ff73029f367 100644
--- a/drivers/pwm/pwm-raspberrypi-poe.c
+++ b/drivers/pwm/pwm-raspberrypi-poe.c
@@ -66,7 +66,7 @@ static int raspberrypi_pwm_get_property(struct rpi_firmware *firmware,
 					u32 reg, u32 *val)
 {
 	struct raspberrypi_pwm_prop msg = {
-		.reg = reg
+		.reg = cpu_to_le32(reg),
 	};
 	int ret;