[PATCH 3/4] gpiolib: acpi: support bias pull disable

[Nuno Sá <nuno.sa@xxxxxxxxxx>]

On top of looking at PULL_UP and PULL_DOWN flags, also look at
PULL_DISABLE and set the appropriate GPIO flag. The GPIO core will then
pass down this to controllers that support it.

Signed-off-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
---
 drivers/gpio/gpiolib-acpi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index c2523ac26fac..9be1376f9a62 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -687,6 +687,9 @@ int acpi_gpio_update_gpiod_lookup_flags(unsigned long *lookupflags,
 	case ACPI_PIN_CONFIG_PULLDOWN:
 		*lookupflags |= GPIO_PULL_DOWN;
 		break;
+	case ACPI_PIN_CONFIG_NOPULL:
+		*lookupflags |= GPIO_PULL_DISABLE;
+		break;
 	default:
 		break;
 	}
-- 
2.37.0