gpiolib: acpi: Fix gpio count with string references

[ Upstream commit c62e0658d458d8f100445445c3ddb106f3824a45 ]

Since commit 9880702d123f2 ("ACPI: property: Support using strings in
reference properties") it is possible to use strings instead of local
references. This work fine with single GPIO but not with arrays as
acpi_gpio_package_count() didn't handle this case. Update it to handle
strings like local references to cover this case as well.

Signed-off-by: Alban Bedel <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

Author: Alban Bedel

drivers/gpio/gpiolib-acpi.c

@@ -1217,6 +1217,7 @@ static int acpi_gpio_package_count(const union acpi_object *obj)
 	while (element < end) {
 		switch (element->type) {
 		case ACPI_TYPE_LOCAL_REFERENCE:
+		case ACPI_TYPE_STRING:
 			element += 3;
 			/* Fallthrough */
 		case ACPI_TYPE_INTEGER: