This is a note to let you know that I've just added the patch titled
ALSA: hda: Increase default bdl_pos_adj for Apollo Lake
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-hda-increase-default-bdl_pos_adj-for-apollo-lak.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7929555090852ba2dc74bc53fa03f8c917f289b2
Author: Rui Salvaterra <rsalvaterra@xxxxxxxxx>
Date: Mon Jan 22 11:45:13 2024 +0000
ALSA: hda: Increase default bdl_pos_adj for Apollo Lake
[ Upstream commit 56beedc88405fd8022edfd1c2e63d1bc6c95efcb ]
Apollo Lake seems to also suffer from IRQ timing issues. After being up for ~4
minutes, a Pentium N4200 system ends up falling back to workqueue-based IRQ
handling:
[ 208.019906] snd_hda_intel 0000:00:0e.0: IRQ timing workaround is activated
for card #0. Suggest a bigger bdl_pos_adj.
Unfortunately, the Baytrail and Braswell workaround value of 32 samples isn't
enough to fix the issue here. Default to 64 samples.
Signed-off-by: Rui Salvaterra <rsalvaterra@xxxxxxxxx>
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240122114512.55808-3-rsalvaterra@xxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 1596157556862..a6a9d353fe635 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1738,6 +1738,8 @@ static int default_bdl_pos_adj(struct azx *chip)
case PCI_DEVICE_ID_INTEL_HDA_BYT:
case PCI_DEVICE_ID_INTEL_HDA_BSW:
return 32;
+ case PCI_DEVICE_ID_INTEL_HDA_APL:
+ return 64;
}
}
