ALSA: hda - Don't handle ELD notify from invalid port
The current Intel HDMI codec driver supports only three fixed ports from port B to port D. However, i915 driver may assign a DP on other ports, e.g. port A, when no eDP is used. This incompatibility is caught later at pin_nid_to_pin_index() and results in a warning message like "HDMI: pin nid 4 not registered" at each time. This patch filters out such invalid events beforehand, so that the kernel won't be too grumbling. Reported-by: Stefan Assmann <sassmann@kpanic.de> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -2432,6 +2432,10 @@ static void intel_pin_eld_notify(void *audio_ptr, int port)
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struct hda_codec *codec = audio_ptr;
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int pin_nid = port + 0x04;
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/* we assume only from port-B to port-D */
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if (port < 1 || port > 3)
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return;
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/* skip notification during system suspend (but not in runtime PM);
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* the state will be updated at resume
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*/
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