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ALSA: hda - New VIA controller suppor no-snoop path

Message ID 1523872089-6381-1-git-send-email-davidwang@zhaoxin.com (mailing list archive)
State New, archived
Headers show

Commit Message

davidwang April 16, 2018, 9:48 a.m. UTC 
This patch is used to tell kernel that new VIA HDAC controller also
support no-snoop path.

Signed-off-by: David Wang <davidwang@zhaoxin.com>
---
 sound/pci/hda/hda_intel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 96143df..439e8e9 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1640,7 +1640,7 @@  static void azx_check_snoop_available(struct azx *chip)
 		 */
 		u8 val;
 		pci_read_config_byte(chip->pci, 0x42, &val);
-		if (!(val & 0x80) && chip->pci->revision == 0x30)
+		if (!(val & 0x80) && (chip->pci->revision == 0x30 || chip->pci->revision == 0x20))
 			snoop = false;
 	}