1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index eb9922385ef..947bdcaa0ce 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6307,6 +6307,7 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
                 return 1;
 
         memset(&props, 0, sizeof(struct backlight_properties));
+        props.type = BACKLIGHT_PLATFORM;
         props.max_brightness = bright_maxlvl;
         props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
         ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,