[ALSA] hda-intel - Fix power-off hang on ASUS P5AD2
The hda-intel driver has a problem at power-off on ASUS P5AD2.
It's caused when the position-buffer is enabled -- most likely a
hardware-specific problem.
This patch adds a quirk to avoid the unnecessary enablement of
position-buffer.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 3d9f0bd6..9a20fb1 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1059,9 +1059,12 @@
azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl.addr));
/* enable the position buffer */
- if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
- azx_writel(chip, DPLBASE,
- (u32)chip->posbuf.addr |ICH6_DPLBASE_ENABLE);
+ if (chip->position_fix == POS_FIX_POSBUF ||
+ chip->position_fix == POS_FIX_AUTO) {
+ if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
+ azx_writel(chip, DPLBASE,
+ (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
+ }
/* set the interrupt enable bits in the descriptor control register */
azx_sd_writel(azx_dev, SD_CTL,
@@ -1707,6 +1710,7 @@
static struct snd_pci_quirk position_fix_list[] __devinitdata = {
SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_NONE),
SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_NONE),
+ SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_NONE),
{}
};