ALSA: hda - handle multiple i915 device instances

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Currently i915_component_master_match() will return the first matching
i915 instance. This does not work in case system has multiple i915
and HDA audio controller instances.

Add a new connectivity check that handles following cases:
 - i915 and HDA controller on same PCI bus
 - discrete GPU with embedded HDA audio controller connected
   via PCI bridge

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200921141741.2983072-4-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Kai Vehmanen 2020-09-21 17:17:40 +03:00 • committed by Takashi Iwai

parent 1bee263dfd

commit 7b882fe3e3

1 changed files with 42 additions and 2 deletions

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sound/hda/hdac_i915.c

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