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Message-Id: <20200416131324.732913863@linuxfoundation.org>
Date: Thu, 16 Apr 2020 15:22:50 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 5.4 076/232] ALSA: hda: Add driver blacklist
From: Takashi Iwai <tiwai@...e.de>
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@...r.kernel.org>
Link: https://lore.kernel.org/r/20200408140449.22319-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
sound/pci/hda/hda_intel.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2024,6 +2024,17 @@ static void pcm_mmap_prepare(struct snd_
#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,
@@ -2059,6 +2070,11 @@ 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]) {
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