Index: winbond.c
===================================================================
--- winbond.c	(revision 3667)
+++ winbond.c	(working copy)
@@ -39,7 +39,46 @@
 	/* ID and rev[3..0] */
 	{0x527, "W83977CTF", {	/* TODO: Not yet in sensors-detect */
 		{EOT}}},
-	{0x52f, "W83977EF/EG", {/* TODO: Not yet in sensors-detect */
+	{0x52f, "W83977EF/EG", {
+		{NOLDN, NULL,
+			{0x02,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x28,0x2a,
+			 0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
+			{RSVD,0x52,NANA,0xff,0xfe,MISC,0x00,MISC,0x00,0x00,
+			 0x00,0x00,RSVD,RSVD,RSVD,EOT}},
+		/* Some register defaults depend on the value of PNPCSV. */
+		{0x0, "Floppy",
+			{0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,0xf2,0xf4,
+			 0xf5,EOT},
+			{0x01,0x03,0xf0,0x06,0x02,0x0e,0x00,0xff,0x00,
+			 0x00,EOT}},
+		{0x1, "Parallel port",
+			{0x30,0x60,0x61,0x70,0x74,0xf0,EOT},
+			{0x01,0x03,0x78,0x07,0x04,0x3f,EOT}},
+		{0x2, "COM1",
+			{0x30,0x60,0x61,0x70,0xf0,EOT},
+			{0x01,0x03,0xf8,0x04,0x00,EOT}},
+		{0x3, "COM2",
+			{0x30,0x60,0x61,0x70,0xf0,0xf1,EOT},
+			{0x01,0x02,0xf8,0x03,0x00,0x00,EOT}},
+		{0x5, "Keyboard",
+			{0x30,0x60,0x61,0x62,0x63,0x70,0x72,0xf0,EOT},
+			{0x01,0x00,0x60,0x00,0x64,0x01,0x0c,0x83,EOT}},
+		{0x7, "GPIO 1",
+			{0x30,0x60,0x61,0x62,0x63,0x64,0x65,0x70,0x72,0xe0,
+			 0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xf1,EOT},
+			{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+			 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00,EOT}},
+		{0x8, "GPIO 2",
+			{0x30,0x60,0x61,0x70,0x72,0xe8,0xe9,0xea,0xeb,0xec,
+			 0xed,0xf0,0xf1,0xf2,0xf3,0xf4,EOT},
+			{0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,
+			 0x01,0x00,RSVD,0x00,0x00,0x00,EOT}},
+		{0xa, "ACPI",
+			/* Note: Datasheet says 0xe2 can't be read/written. */
+			{0x30,0x70,0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,
+			 0xf0,0xf1,0xf3,0xf4,0xf6,0xf7,0xf9,0xfe,0xff,EOT},
+			{0x00,0x00,0x00,0x00,MISC,MISC,MISC,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,RSVD,RSVD,EOT}},
 		{EOT}}},
 	{0x595, "W83627SF", {	/* TODO: Not yet in sensors-detect */
 		{EOT}}},
 static void probe_idregs_winbond_helper(const char *init, uint16_t port)
@@ -457,12 +496,14 @@
 	rev = regval(port, DEVICE_REV_REG);
 	olddevid = regval(port, DEVICE_ID_REG_OLD) & 0x0f;
 
-	if (devid == 0x52 || devid == 0x68 || devid == 0x88)
+	if (devid == 0x52 && (rev & 0xf0) != 0xf0)
 		id = devid;				 /* ID only */
+	else if (devid == 0x68 || devid == 0x88)
+		id = devid;				 /* ID only */
 	else if ((devid == 0x97) && ((rev & 0xf0) == 0x70))
 		id = (devid << 8) | rev;		 /* ID and rev */
 	else
-		id = (devid << 4) | ((rev & 0xf0) >> 4); /* ID and rev[3..0] */
+		id = (devid << 4) | ((rev & 0xf0) >> 4); /* ID and rev[7..4] */
 
 	if (olddevid == 0x0a || olddevid == 0x0c || olddevid == 0x0d)
 		id = olddevid & 0x0f;			 /* ID[3..0] */
