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| author | Takashi Iwai <tiwai@suse.de> | 2016-04-04 11:51:08 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-04-04 11:51:08 +0200 |
| commit | a99e31512aa435e8391ba5f5e64abeac9c5f2f32 (patch) | |
| tree | 56bb9d9ccfe76520b672249757e25f686275b204 /sound/hda | |
| parent | 86c8dd7f4da3fb3f92fc5ab5144c971639d39745 (diff) | |
| parent | f03b24a851d32ca85dacab01785b24a7ee717d37 (diff) | |
Merge branch 'for-linus' into for-next
Conflicts:
sound/hda/hdac_i915.c
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
| -rw-r--r-- | sound/hda/hdac_i915.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c index d0da2508823e..6800e0c5a38f 100644 --- a/sound/hda/hdac_i915.c +++ b/sound/hda/hdac_i915.c @@ -287,6 +287,18 @@ int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops } EXPORT_SYMBOL_GPL(snd_hdac_i915_register_notifier); +/* check whether intel graphics is present */ +static bool i915_gfx_present(void) +{ + static struct pci_device_id ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID), + .class = PCI_BASE_CLASS_DISPLAY << 16, + .class_mask = 0xff << 16 }, + {} + }; + return pci_dev_present(ids); +} + /** * snd_hdac_i915_init - Initialize i915 audio component * @bus: HDA core bus @@ -309,6 +321,9 @@ int snd_hdac_i915_init(struct hdac_bus *bus) if (WARN_ON(hdac_acomp)) return -EBUSY; + if (!i915_gfx_present()) + return -ENODEV; + acomp = kzalloc(sizeof(*acomp), GFP_KERNEL); if (!acomp) return -ENOMEM; |