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Date: Mon, 17 Nov 2014 06:34:48 +0100
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X-Bullshit: cloud singleton hardware lifecycle manager
Subject: audiohda.c: support for series 8 lynx-point
From: qux <qu7uux@gmail.com>
To: 9front@9front.org
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Without inlined patch (edited):
% cat '#'A/audiostat
cat: can't open #A/audiostat: no free devices
(sysinfo w/o patch: http://sysinfo.9front.org/src/86/body)

Based on OpenBSD driver:
- /sys/dev/pci/azalia.c rev 1.209
- /sys/dev/pci/pcidevs rev 1.1689
- only tested on amd64; machine is an Acer V5-573G
    exact model: V5-573G-74518G1Takk

diff -r 42f28e4e6db2 sys/src/9/pc/audiohda.c
--- a/sys/src/9/pc/audiohda.c	Mon Nov 17 00:53:02 2014 +0100
+++ b/sys/src/9/pc/audiohda.c	Mon Nov 17 06:21:15 2014 +0100
@@ -1747,6 +1747,7 @@
 		case (0x8086 << 16) | 0x1c20:	/* Intel PCH */
 		case (0x8086 << 16) | 0x1e20:	/* Intel (Thinkpad x230t) */
 		case (0x8086 << 16) | 0x8c20:	/* Intel 8 Series/C220 Series */
+		case (0x8086 << 16) | 0x9c20:	/* Intel 8 Series Lynx Point */

 		case (0x10de << 16) | 0x026c:	/* NVidia MCP51 (untested) */
 		case (0x10de << 16) | 0x0371:	/* NVidia MCP55 (untested) */
@@ -1865,6 +1866,7 @@
 		case 0x811b:	/* SCH */
 		case 0x080a:
 		case 0x8c20:
+		case 0x9c20:
 			pcicfgw16(p, 0x78, pcicfgr16(p, 0x78) & ~0x800);
 		}
 	}