1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index b7c2a06963d6..25aba9b107dd 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -57,6 +57,7 @@
 
 #define ACPI_BUTTON_LID_INIT_IGNORE     0x00
 #define ACPI_BUTTON_LID_INIT_OPEN       0x01
+#define ACPI_BUTTON_LID_INIT_METHOD     0x02
 
 #define _COMPONENT              ACPI_BUTTON_COMPONENT
 ACPI_MODULE_NAME("button");
@@ -376,6 +377,9 @@ static void acpi_lid_initialize_state(struct acpi_device *device)
         case ACPI_BUTTON_LID_INIT_OPEN:
                 (void)acpi_lid_notify_state(device, 1);
                 break;
+        case ACPI_BUTTON_LID_INIT_METHOD:
+                (void)acpi_lid_update_state(device);
+                break;
         case ACPI_BUTTON_LID_INIT_IGNORE:
         default:
                 break;
@@ -560,6 +564,9 @@ static int param_set_lid_init_state(const char *val, struct kernel_param *kp)
         if (!strncmp(val, "open", sizeof("open") - 1)) {
                 lid_init_state = ACPI_BUTTON_LID_INIT_OPEN;
                 pr_info("Notify initial lid state as open\n");
+        } else if (!strncmp(val, "method", sizeof("method") - 1)) {
+                lid_init_state = ACPI_BUTTON_LID_INIT_METHOD;
+                pr_info("Notify initial lid state with _LID return value\n");
         } else if (!strncmp(val, "ignore", sizeof("ignore") - 1)) {
                 lid_init_state = ACPI_BUTTON_LID_INIT_IGNORE;
                 pr_info("Do not notify initial lid state\n");
@@ -573,6 +580,8 @@ static int param_get_lid_init_state(char *buffer, struct kernel_param *kp)
         switch (lid_init_state) {
         case ACPI_BUTTON_LID_INIT_OPEN:
                 return sprintf(buffer, "open");
+        case ACPI_BUTTON_LID_INIT_METHOD:
+                return sprintf(buffer, "method");
         case ACPI_BUTTON_LID_INIT_IGNORE:
                 return sprintf(buffer, "ignore");
         default: