From: David Henningsson <david.henningsson@canonical.com>
To: ALSA Development Mailing List <alsa-devel@alsa-project.org>,
Takashi Iwai <tiwai@suse.de>
Subject: [PATCH] ALSA: HDA: Correct address for SSYNC register
Date: Wed, 16 Mar 2011 11:51:00 +0100 [thread overview]
Message-ID: <4D809614.1090508@canonical.com> (raw)
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Here's something I stumbled upon, while debugging something probably
unrelated. I don't exactly know the implications of failing multiple
stream synchronisation (is that something we commonly use?), or the
implications of writing to a register that is "Reserved" in the HDA Spec
(can there be crazy vendor magic in there we're unwillingly messing with?).
Perhaps someone else knows more and can tell if this is something that
is actually important.
--
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic
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>From d7ade361618ee99b89a82b84b035d345ef7a1bd9 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 16 Mar 2011 11:35:11 +0100
Subject: [PATCH] ALSA: HDA: Correct address for SYNC register
The SSYNC register is located at address 0x38 according to the
HDA specification.
Cc: stable@kernel.org
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
---
sound/pci/hda/hda_intel.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 70a9d32..ab3f654 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -176,7 +176,7 @@ MODULE_DESCRIPTION("Intel HDA driver");
#define ICH6_REG_INTCTL 0x20
#define ICH6_REG_INTSTS 0x24
#define ICH6_REG_WALLCLK 0x30 /* 24Mhz source */
-#define ICH6_REG_SYNC 0x34
+#define ICH6_REG_SYNC 0x38
#define ICH6_REG_CORBLBASE 0x40
#define ICH6_REG_CORBUBASE 0x44
#define ICH6_REG_CORBWP 0x48
--
1.7.1
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next reply other threads:[~2011-03-16 10:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-16 10:51 David Henningsson [this message]
2011-03-16 11:40 ` [PATCH] ALSA: HDA: Correct address for SSYNC register Takashi Iwai
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