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authorMohan Kumar <mkumard@nvidia.com>2022-09-05 20:24:20 +0300
committerTakashi Iwai <tiwai@suse.de>2022-09-06 08:13:32 +0300
commit8d44e6044a0e885acdd01813768a0b27906d64fd (patch)
tree1f7a9cd10ad69088bfd80105070aa3892638bd6b /sound/pci
parent51bdc8bb82525cd70feb92279c8b7660ad7948dd (diff)
downloadlinux-8d44e6044a0e885acdd01813768a0b27906d64fd.tar.xz
ALSA: hda/tegra: Align BDL entry to 4KB boundary
AZA HW may send a burst read/write request crossing 4K memory boundary. The 4KB boundary is not guaranteed by Tegra HDA HW. Make SW change to include the flag AZX_DCAPS_4K_BDLE_BOUNDARY to align BDLE to 4K boundary. Signed-off-by: Mohan Kumar <mkumard@nvidia.com> Link: https://lore.kernel.org/r/20220905172420.3801-1-mkumard@nvidia.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/hda_tegra.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index 7debb2c76aa6..976a112c7d00 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -474,7 +474,8 @@ MODULE_DEVICE_TABLE(of, hda_tegra_match);
static int hda_tegra_probe(struct platform_device *pdev)
{
const unsigned int driver_flags = AZX_DCAPS_CORBRP_SELF_CLEAR |
- AZX_DCAPS_PM_RUNTIME;
+ AZX_DCAPS_PM_RUNTIME |
+ AZX_DCAPS_4K_BDLE_BOUNDARY;
struct snd_card *card;
struct azx *chip;
struct hda_tegra *hda;