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-rw-r--r--include/linux/fsl-diu-fb.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/fsl-diu-fb.h b/include/linux/fsl-diu-fb.h
index 363d5e290cad..11c16a1fb9e3 100644
--- a/include/linux/fsl-diu-fb.h
+++ b/include/linux/fsl-diu-fb.h
@@ -153,12 +153,12 @@ struct diu {
__be32 plut;
} __attribute__ ((packed));
-/* Modes of operation of DIU */
+/*
+ * Modes of operation of DIU. The DIU supports five different modes, but
+ * the driver only supports modes 0 and 1.
+ */
#define MFB_MODE0 0 /* DIU off */
#define MFB_MODE1 1 /* All three planes output to display */
-#define MFB_MODE2 2 /* Plane 1 to display, planes 2+3 written back*/
-#define MFB_MODE3 3 /* All three planes written back to memory */
-#define MFB_MODE4 4 /* Color bar generation */
#endif /* __KERNEL__ */
#endif /* __FSL_DIU_FB_H__ */