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ALSA: hda - Drop unsol event handler for Intel HDMI codecs

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[ Upstream commit f2dbe87c5a ]

We don't need to deal with the unsol events for Intel chips that are
tied with the graphics via audio component notifier.  Although the
presence of the audio component is checked at the beginning of
hdmi_unsol_event(), better to short cut by dropping unsol_event ops.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204565
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Takashi Iwai
2019-08-13 17:11:28 +02:00
committed by Greg Kroah-Hartman
parent ac1d43a20a
commit 5370cf8d90
1 changed files with 8 additions and 1 deletions
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9
sound/pci/hda/patch_hdmi.c
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@@ -2583,6 +2583,8 @@ static void i915_pin_cvt_fixup(struct hda_codec *codec,
/* precondition and allocation for Intel codecs */
static int alloc_intel_hdmi(struct hda_codec *codec)
{
int err;
/* requires i915 binding */
if (!codec->bus->core.audio_component) {
codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
@@ -2591,7 +2593,12 @@ static int alloc_intel_hdmi(struct hda_codec *codec)
return -ENODEV;
}
return alloc_generic_hdmi(codec);
err = alloc_generic_hdmi(codec);
if (err < 0)
return err;
/* no need to handle unsol events */
codec->patch_ops.unsol_event = NULL;
return 0;
}
/* parse and post-process for Intel codecs */