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

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>
alistair/sunxi64-5.4-dsi
Takashi Iwai 2019-08-13 17:11:28 +02:00
parent d7da429339
commit f2dbe87c5a
1 changed files with 8 additions and 1 deletions
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9
sound/pci/hda/patch_hdmi.c
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@ -2760,6 +2760,8 @@ 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");
@ -2768,7 +2770,12 @@ 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 */