diff --git a/drivers/ptp/ptp_clockmatrix.h b/drivers/ptp/ptp_clockmatrix.h
index 023323680db7..fb323271063e 100644
--- a/drivers/ptp/ptp_clockmatrix.h
+++ b/drivers/ptp/ptp_clockmatrix.h
@@ -15,7 +15,6 @@
 #define FW_FILENAME	"idtcm.bin"
 #define MAX_TOD		(4)
 #define MAX_PLL		(8)
-#define MAX_OUTPUT	(12)
 
 #define MAX_ABS_WRITE_PHASE_PICOSECONDS (107374182350LL)
 
@@ -138,7 +137,6 @@ struct idtcm_channel {
 	enum pll_mode		pll_mode;
 	u8			pll;
 	u16			output_mask;
-	u8			output_phase_adj[MAX_OUTPUT][4];
 };
 
 struct idtcm {