more vids and dids from cinap.  i wonder if there isn't
a way to look at the device class bits to detect hda audio
instead of this infinite device list?

Reference: /n/atom/patch/applied2013/audiohdapch
Date: Wed Jul 10 00:31:51 CES 2013
Signed-off-by: quanstro@quanstro.net

--- /sys/src/9/pc/audiohda.c	Wed Jul 10 00:31:11 2013
+++ /sys/src/9/pc/audiohda.c	Wed Jul 10 00:31:11 2013
@@ -1491,6 +1491,8 @@
 		case 0x8086<<16 | 0x3b56:	/* Intel P55 (Ibex Peak) */
 		case 0x8086<<16 | 0x811b:	/* Intel SCH Poulsbo */
 		case 0x8086<<16 | 0x080a:	/* Intel SCH Oaktrail */
+		case 0x8086<<16 | 0x1c20:		/* Intel PCH */
+		case 0x8086<<16 | 0x1e20:	/* Intel (Thinkpad x230t) */
 
 		case 0x10de<<16 | 0x026c:	/* NVidia MCP51 untested */
 		case 0x10de<<16 | 0x0371:	/* NVidia MCP55 untested */
@@ -1600,6 +1602,8 @@
 	if(p->vid == 0x8086){
 		/* magic for Intel */
 		switch(p->did){
+		case 0x1c20:	/* PCH */
+		case 0x1e20:
 		case 0x811b:	/* SCH */
 		case 0x080a:
 			pcicfgw16(p, 0x78, pcicfgr16(p, 0x78) & ~0x800);
--- /sys/src/9/pcpae/audiohda.c	Wed Jul 10 00:31:11 2013
+++ /sys/src/9/pcpae/audiohda.c	Wed Jul 10 00:31:11 2013
@@ -1491,6 +1491,8 @@
 		case 0x8086<<16 | 0x3b56:	/* Intel P55 (Ibex Peak) */
 		case 0x8086<<16 | 0x811b:	/* Intel SCH Poulsbo */
 		case 0x8086<<16 | 0x080a:	/* Intel SCH Oaktrail */
+		case 0x8086<<16 | 0x1c20:		/* Intel PCH */
+		case 0x8086<<16 | 0x1e20:	/* Intel (Thinkpad x230t) */
 
 		case 0x10de<<16 | 0x026c:	/* NVidia MCP51 untested */
 		case 0x10de<<16 | 0x0371:	/* NVidia MCP55 untested */
@@ -1600,6 +1602,8 @@
 	if(p->vid == 0x8086){
 		/* magic for Intel */
 		switch(p->did){
+		case 0x1c20:	/* PCH */
+		case 0x1e20:
 		case 0x811b:	/* SCH */
 		case 0x080a:
 			pcicfgw16(p, 0x78, pcicfgr16(p, 0x78) & ~0x800);
--- /sys/src/nix/k10/audiohda.c	Wed Jul 10 00:31:11 2013
+++ /sys/src/nix/k10/audiohda.c	Wed Jul 10 00:31:11 2013
@@ -1567,6 +1567,8 @@
 		case 0x8086<<16 | 0x3b56:	/* Intel P55 (Ibex Peak) */
 		case 0x8086<<16 | 0x811b:	/* Intel SCH Poulsbo */
 		case 0x8086<<16 | 0x080a:	/* Intel SCH Oaktrail */
+		case 0x8086<<16 | 0x1c20:		/* Intel PCH */
+		case 0x8086<<16 | 0x1e20:	/* Intel (Thinkpad x230t) */
 
 		case 0x10de<<16 | 0x026c:	/* NVidia MCP51 untested */
 		case 0x10de<<16 | 0x0371:	/* NVidia MCP55 untested */
@@ -1676,6 +1678,8 @@
 	if(p->vid == 0x8086){
 		/* magic for Intel */
 		switch(p->did){
+		case 0x1c20:	/* PCH */
+		case 0x1e20:
 		case 0x811b:	/* SCH */
 		case 0x080a:
 			pcicfgw16(p, 0x78, pcicfgr16(p, 0x78) & ~0x800);