From ee9d6b9a30ae83f15fe8c8d2337ebc0a38151d38 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 14 Mar 2008 15:52:20 +0100 Subject: [PATCH] [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 --- sound/pci/hda/hda_intel.c | 10 +++++++--- 1 file 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), {} }; -- 2.32.0.93.g670b81a890