gpio-fsm: Rename 'num-soft-gpios' to avoid warning

raspberrypi inclusion
category: feature
bugzilla: 50432

--------------------------------

As of 5.10, the Device Tree parser warns about properties that look
like references to "suppliers" of various services. "num-soft-gpios"
resembles a declaration of a GPIO called "num-soft", causing the value
to be interpreted as a phandle, the owner of which is checked for a
"#gpio-cells" property.

To avoid this warning, rename the gpio-fsm property to "num-swgpios".
Signed-off-by: NPhil Elwell <phil@raspberrypi.com>
Signed-off-by: NFang Yafen <yafen@iscas.ac.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/gpio/gpio-fsm.c

@@ -866,8 +866,9 @@ static int gpio_fsm_probe(struct platform_device *pdev)
 		[SYM_SHUTDOWN] = "shutdown_state",
 	};
 
-	if (of_property_read_u32(np, "num-soft-gpios", &num_soft_gpios)) {
-		dev_err(dev, "missing 'num-soft-gpios' property\n");
+	if (of_property_read_u32(np, "num-swgpios", &num_soft_gpios) &&
+	    of_property_read_u32(np, "num-soft-gpios", &num_soft_gpios)) {
+		dev_err(dev, "missing 'num-swgpios' property\n");
 		return -EINVAL;
 	}