]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
ALSA: hda: Add driver blacklist
authorTakashi Iwai <tiwai@suse.de>
Wed, 8 Apr 2020 14:04:49 +0000 (16:04 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 17 Apr 2020 14:11:59 +0000 (16:11 +0200)
commit 3c6fd1f07ed03a04debbb9a9d782205f1ef5e2ab upstream.

The recent AMD platform exposes an HD-audio bus but without any actual
codecs, which is internally tied with a USB-audio device, supposedly.
It results in "no codecs" error of HD-audio bus driver, and it's
nothing but a waste of resources.

This patch introduces a static blacklist table for skipping such a
known bogus PCI SSID entry.  As of writing this patch, the known SSIDs
are:
* 1043:874f - ASUS ROG Zenith II / Strix
* 1462:cb59 - MSI TRX40 Creator
* 1462:cb60 - MSI TRX40

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206543
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200408140449.22319-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
sound/pci/hda/hda_intel.c

index 9d3b28bcba9b474178750b3cc4a51a2b6676d6fd..d2d5a19bdeccec234011da78c9ff799f90ba4cdf 100644 (file)
@@ -2074,6 +2074,17 @@ static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
 #endif
 }
 
+/* Blacklist for skipping the whole probe:
+ * some HD-audio PCI entries are exposed without any codecs, and such devices
+ * should be ignored from the beginning.
+ */
+static const struct snd_pci_quirk driver_blacklist[] = {
+       SND_PCI_QUIRK(0x1043, 0x874f, "ASUS ROG Zenith II / Strix", 0),
+       SND_PCI_QUIRK(0x1462, 0xcb59, "MSI TRX40 Creator", 0),
+       SND_PCI_QUIRK(0x1462, 0xcb60, "MSI TRX40", 0),
+       {}
+};
+
 static const struct hda_controller_ops pci_hda_ops = {
        .disable_msi_reset_irq = disable_msi_reset_irq,
        .pcm_mmap_prepare = pcm_mmap_prepare,
@@ -2090,6 +2101,11 @@ static int azx_probe(struct pci_dev *pci,
        bool schedule_probe;
        int err;
 
+       if (snd_pci_quirk_lookup(pci, driver_blacklist)) {
+               dev_info(&pci->dev, "Skipping the blacklisted device\n");
+               return -ENODEV;
+       }
+
        if (dev >= SNDRV_CARDS)
                return -ENODEV;
        if (!enable[dev]) {