ALSA: hda/tegra: Update scratch reg. communication

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Tegra234 chip scratch register communication between audio
and hdmi driver differs slightly in the way it triggers the
interrupt compared to legacy chips. Interrupt is triggered
by writing non-zero values to verb 0xF80 instead of 31st bit
of scratch register.

DP MST support changed the NID to be used for scratch register
read/write from audio function group NID to Converter widget NID.

Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Link: https://lore.kernel.org/r/20220216092240.26464-4-mkumard@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Mohan Kumar 2022-02-16 14:52:37 +05:30 • committed by Takashi Iwai

parent b58d511ded

commit 85f2949292

1 changed files with 48 additions and 16 deletions

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sound/pci/hda/patch_hdmi.c

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