ALSA: hda - Limit i915 HDMI binding only for HSW and later
authorTakashi Iwai <tiwai@suse.de>
Tue, 15 Mar 2016 17:15:26 +0000 (18:15 +0100)
committerTakashi Iwai <tiwai@suse.de>
Tue, 15 Mar 2016 17:15:26 +0000 (18:15 +0100)
commitb62232d429fa8b1dcf5d8503aa5a5397a03e646a
treeb03cdc0f6024355371c867e088b4ef0f5cd2d8ac
parent1f7c6658962fa1260c1658d681bd6bb0c746b99a
ALSA: hda - Limit i915 HDMI binding only for HSW and later

It turned out that the pre-HSW Intel chips are incompatible with the
naive assumption we had -- the fixed mapping between the port and the
HD-audio widget.  This may result in the bad access, as captured by
the recent patch to add a WARN_ON() for the port mapping check.

As a quick workaround, disable the i915 audio component binding for
all pre-Haswell models.

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.5
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/patch_hdmi.c