gpiolib: acpi: support bias pull disable

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. Change-Id: I78df1dc294ae916c1f52888e1c0b9e897042a4ed Signed-off-by: Nuno Sá <[email protected]> Acked-by: Andy Shevchenko <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]> Signed-off-by: Amelie Delaunay <[email protected]> Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/312115 Tested-by: Eric FOURMONT <[email protected]> Reviewed-by: Eric FOURMONT <[email protected]> Domain-Review: Eric FOURMONT <[email protected]>
STMicroelectronics · Jul 31, 2023 · 61ca40c · 61ca40c
1 parent 1a3de8e
commit 61ca40c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
@@ -702,6 +702,9 @@ 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;
 	}