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authorTakashi Iwai <tiwai@suse.de>2008-03-14 15:52:20 +0100
committerTakashi Iwai <tiwai@suse.de>2008-04-24 12:00:24 +0200
commitee9d6b9a30ae83f15fe8c8d2337ebc0a38151d38 (patch)
tree93cfed38dfeaf35a590139ec7999203daf20a3d3 /sound/pci
parent3da23cac3d6b93803b8c381a755870cbafcd3212 (diff)
[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>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/hda_intel.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 3d9f0bd63ba..9a20fb1bef4 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1059,9 +1059,12 @@ static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
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 int azx_dev_free(struct snd_device *device)
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),
{}
};