a7y18lte-ubports/android_kernel_samsung_universal7885
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ALSA: hda - New VIA controller suppor no-snoop path

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commit af52f9982e410edac21ca4b49563053ffc9da1eb upstream.

This patch is used to tell kernel that new VIA HDAC controller also
support no-snoop path.

[ minor coding style fix by tiwai ]

Signed-off-by: David Wang <davidwang@zhaoxin.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Wang 2018-04-16 17:48:09 +08:00 committed by Greg Kroah-Hartman
parent fc338748e3
commit cebd9b67fe
1 changed files with 2 additions and 1 deletions

3
sound/pci/hda/hda_intel.c
View File

@ -1549,7 +1549,8 @@ 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;
}