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Diffstat (limited to 'src/drivers/intel/gma/opregion.h')
-rw-r--r--src/drivers/intel/gma/opregion.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/drivers/intel/gma/opregion.h b/src/drivers/intel/gma/opregion.h
index 3f943805fb..eebea58b5a 100644
--- a/src/drivers/intel/gma/opregion.h
+++ b/src/drivers/intel/gma/opregion.h
@@ -168,7 +168,7 @@ typedef struct {
#define IGD_BACKLIGHT_BRIGHTNESS 0xff
#define IGD_INITIAL_BRIGHTNESS 0x64
-#define IGD_FIELD_VALID (1 << 31)
+#define IGD_FIELD_VALID (1UL << 31)
#define IGD_WORD_FIELD_VALID (1 << 15)
#define IGD_PFIT_STRETCH 6