From ef56aa414e7e978237cbcef2e9fc29ecf42e97e6 Mon Sep 17 00:00:00 2001 From: Mengdong Lin Date: Thu, 12 Jun 2014 14:42:25 +0800 Subject: ALSA: hda - verify pin:converter connection on unsol event for HSW and VLV commit b4f75aea553a2146bbdd159c397a2ac42cbb9902 upstream. This patch will verify the pin's coverter selection for an active stream when an unsol event reports this pin becomes available again after a display mode change or hot-plug event. For Haswell+ and Valleyview: display mode change or hot-plug can change the transcoder:port connection and make all the involved audio pins share the 1st converter. So the stream using 1st convertor will flow to multiple pins but active streams using other converters will fail. This workaround is to assure the pin selects the right conveter and an assigned converter is not shared by other unused pins. Signed-off-by: Mengdong Lin Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/patch_hdmi.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index b4218a19df22..8867ab3a71d4 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1598,10 +1598,18 @@ static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll) * Re-setup pin and infoframe. This is needed e.g. when * - sink is first plugged-in (infoframe is not set up if !monitor_present) * - transcoder can change during stream playback on Haswell + * and this can make HW reset converter selection on a pin. */ - if (eld->eld_valid && !old_eld_valid && per_pin->setup) + if (eld->eld_valid && !old_eld_valid && per_pin->setup) { + if (is_haswell_plus(codec) || is_valleyview(codec)) { + intel_verify_pin_cvt_connect(codec, per_pin); + intel_not_share_assigned_cvt(codec, pin_nid, + per_pin->mux_idx); + } + hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm); + } } if (eld_changed) -- cgit v1.2.3