linux-kernel - RE: [alsa-devel] [PATCH] add the nvidia HDMI codec driver for MCP77/79

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Message-ID: <15F501D1A78BD343BE8F4D8DB854566B32241EB0@hkemmail01.nvidia.com>
Date:	Fri, 5 Sep 2008 16:28:15 +0800
From:	"Wei Ni" <wni@...dia.com>
To:	"Takashi Iwai" <tiwai@...e.de>,
	"Pavel Hofman" <pavel.hofman@...ite.cz>
Cc:	"Peer Chen" <pchen@...dia.com>,
	"alsa-devel" <alsa-devel@...a-project.org>,
	"linux-kernel" <linux-kernel@...r.kernel.org>,
	"akpm" <akpm@...ux-foundation.org>
Subject: RE: [alsa-devel] [PATCH] add the nvidia HDMI codec driver for	MCP77/79

Thanks for your reply, I will generate the pach based on the latest
sound git tree.

Wei

-----Original Message-----
From: Takashi Iwai [mailto:tiwai@...e.de] 
Sent: Thursday, September 04, 2008 3:04 PM
To: Pavel Hofman
Cc: Wei Ni; Peer Chen; alsa-devel; linux-kernel; akpm
Subject: Re: [alsa-devel] [PATCH] add the nvidia HDMI codec driver for
MCP77/79

At Wed, 03 Sep 2008 14:11:16 +0200,
Pavel Hofman wrote:
> 
> 
> >> ......
> >> According to these codes, It only can get the realtek codec and can
not
> >> get hdmi codec, if just change azx_max_codecs[AZX_DRIVER_NVIDIA] to
4
> >> I think if remove "if (!audio_codecs)", it will be better, and I
only
> >> need to chang azx_max_codecs[AZX_DRIVER_NVIDIA] to 4
> > 
> > Well, the check is there for a good reason.
> > 
> > There are many machines with broken BIOS reporting the 4th slot
> > available although it isn't actually.  It's a workaround to skip
such
> > a bogus information.  So, it cannot be changed so easily.
> > 
> > We need to sort out this in a better way...  Oh well.
> 
> 
> Please, please, put the above information as a comment to the
respective 
> place. These "hacks" should be commented :)

I changed that code yesterday with a little bit more comment.

Wei, Peer, could you regenerate the patch based on the latest sound
git tree?

    git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git

or use the snapshot tarball from

    ftp://ftp.kernel.org/pub/linux/tiwai/snapshot/

This already contains the fix for the 4th slot probe on Nvidia
chipset.


thanks,

Takashi
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