3.12-stable patches

added patches:
	alsa-hda-add-enable_msi-0-workaround-for-four-hp-machines.patch

diff --git a/queue-3.12/alsa-hda-add-enable_msi-0-workaround-for-four-hp-machines.patch b/queue-3.12/alsa-hda-add-enable_msi-0-workaround-for-four-hp-machines.patch
new file mode 100644 (file)
index 0000000..ac627e7
--- /dev/null
+++ b/queue-3.12/alsa-hda-add-enable_msi-0-workaround-for-four-hp-machines.patch
@@ -0,0 +1,40 @@
+From 693e0cb052c607e2d41edf9e9f1fa99ff8c266c1 Mon Sep 17 00:00:00 2001
+From: David Henningsson <david.henningsson@canonical.com>
+Date: Thu, 12 Dec 2013 09:52:03 +0100
+Subject: ALSA: hda - Add enable_msi=0 workaround for four HP machines
+
+From: David Henningsson <david.henningsson@canonical.com>
+
+commit 693e0cb052c607e2d41edf9e9f1fa99ff8c266c1 upstream.
+
+While enabling these machines, we found we would sometimes lose an
+interrupt if we change hardware volume during playback, and that
+disabling msi fixed this issue. (Losing the interrupt caused underruns
+and crackling audio, as the one second timeout is usually bigger than
+the period size.)
+
+The machines were all machines from HP, running AMD Hudson controller,
+and Realtek ALC282 codec.
+
+BugLink: https://bugs.launchpad.net/bugs/1260225
+Signed-off-by: David Henningsson <david.henningsson@canonical.com>
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ sound/pci/hda/hda_intel.c |    4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/sound/pci/hda/hda_intel.c
++++ b/sound/pci/hda/hda_intel.c
+@@ -3430,6 +3430,10 @@ static void check_probe_mask(struct azx
+  * white/black-list for enable_msi
+  */
+ static struct snd_pci_quirk msi_black_list[] = {
++      SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
++      SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
++      SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
++      SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
+       SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
+       SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
+       SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */

diff --git a/queue-3.12/series b/queue-3.12/series
index 02dfd413d74fa74703a28ec9b09fc14be3c88f72..b87c20183daacf65d27c32dbdbee00ccef0b2e5e 100644 (file)
--- a/queue-3.12/series
+++ b/queue-3.12/series
@@ -15,3 +15,4 @@ asoc-wm8904-fix-dsp-mode-b-configuration.patch
 asoc-wm_adsp-add-small-delay-while-polling-dsp-ram-start.patch
 asoc-wm5110-correct-hpout3-dapm-route-typo.patch
 alsa-add-sndrv_pcm_state_paused-case-in-wait_for_avail-function.patch
+alsa-hda-add-enable_msi-0-workaround-for-four-hp-machines.patch