Patch "ALSA: hda - Disable 64bit address for Creative HDA controllers" has been added to the 4.3-stable tree

Patch "ALSA: hda - Disable 64bit address for Creative HDA controllers" has been added to the 4.3-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ALSA: hda - Disable 64bit address for Creative HDA controllers

to the 4.3-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     alsa-hda-disable-64bit-address-for-creative-hda-controllers.patch
and it can be found in the queue-4.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From cadd16ea33a938d49aee99edd4758cc76048b399 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 27 Oct 2015 14:21:51 +0100
Subject: ALSA: hda - Disable 64bit address for Creative HDA controllers

From: Takashi Iwai <tiwai@suse.de>

commit cadd16ea33a938d49aee99edd4758cc76048b399 upstream.

We've had many reports that some Creative sound cards with CA0132
don't work well.  Some reported that it starts working after reloading
the module, while some reported it starts working when a 32bit kernel
is used.  All these facts seem implying that the chip fails to
communicate when the buffer is located in 64bit address.

This patch addresses these issues by just adding AZX_DCAPS_NO_64BIT
flag to the corresponding PCI entries.  I casually had a chance to
test an SB Recon3D board, and indeed this seems helping.

Although this hasn't been tested on all Creative devices, it's safer
to assume that this restriction applies to the rest of them, too.  So
the flag is applied to all Creative entries.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/pci/hda/hda_intel.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -334,6 +334,7 @@ enum {
 
 #define AZX_DCAPS_PRESET_CTHDA \
 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
+	 AZX_DCAPS_NO_64BIT |\
 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
 
 /*
@@ -2284,11 +2285,13 @@ static const struct pci_device_id azx_id
 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
 	  .class_mask = 0xffffff,
 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
+	  AZX_DCAPS_NO_64BIT |
 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
 #else
 	/* this entry seems still valid -- i.e. without emu20kx chip */
 	{ PCI_DEVICE(0x1102, 0x0009),
 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
+	  AZX_DCAPS_NO_64BIT |
 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
 #endif
 	/* CM8888 */


Patches currently in stable-queue which might be from tiwai@suse.de are

queue-4.3/alsa-hda-realtek-dell-xps-one-alc3260-speaker-no-sound-after-resume-back.patch
queue-4.3/alsa-fireworks-bebob-oxfw-dice-enable-to-make-as-built-in.patch
queue-4.3/alsa-hda-add-intel-lewisburg-device-ids-audio.patch
queue-4.3/alsa-hda-disable-64bit-address-for-creative-hda-controllers.patch
queue-4.3/alsa-hda-fix-lost-4k-bdl-boundary-workaround.patch
queue-4.3/alsa-hda-apply-pin-fixup-for-hp-probook-6550b.patch