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Commit 447f95d4 authored by Mohan Kumar's avatar Mohan Kumar Committed by Greg Kroah-Hartman
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ALSA: hda/tegra: Align BDL entry to 4KB boundary 



[ Upstream commit 8d44e6044a0e885acdd01813768a0b27906d64fd ]

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: default avatarMohan Kumar <mkumard@nvidia.com>
Link: https://lore.kernel.org/r/20220905172420.3801-1-mkumard@nvidia.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 9f55da12

sound/pci/hda/hda_tegra.c

+2 −1
Original line number Diff line number Diff line
@@ -428,7 +428,8 @@ 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;