linux-kernel - Re: [ 093/153] ALSA: hda - hdmi: Make jacks phantom, if theyre not detectable

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Date:	Mon, 04 Mar 2013 05:13:57 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	David Henningsson <david.henningsson@...onical.com>
Cc:	stable@...r.kernel.org, akpm@...ux-foundation.org,
	LKML <linux-kernel@...r.kernel.org>, Takashi Iwai <tiwai@...e.de>
Subject: Re: [ 093/153] ALSA: hda - hdmi: Make jacks phantom, if theyre not
 detectable

On Mon, 2013-03-04 at 03:38 +0000, Ben Hutchings wrote:
> 3.2-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: David Henningsson <david.henningsson@...onical.com>
> 
> commit 30efd8debd1ef30be342d374f01e993509f5b76b upstream.
> 
> Just as for analog codecs, a jack that isn't suitable for detection
> (in this case, NO_PRESENCE was set) should be a phantom Jack
> instead of a normal one.
> 
> Thanks to Raymond Yau for spotting.
> 
> BugLink: https://bugs.launchpad.net/bugs/961286
> BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=903869
> Signed-off-by: David Henningsson <david.henningsson@...onical.com>
> Signed-off-by: Takashi Iwai <tiwai@...e.de>
> [bwh: Backported to 3.2: adjust context]
> Signed-off-by: Ben Hutchings <ben@...adent.org.uk>

David, do I need to change this further for 3.2.y?

Ben.

> ---
>  sound/pci/hda/patch_hdmi.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> --- a/sound/pci/hda/patch_hdmi.c
> +++ b/sound/pci/hda/patch_hdmi.c
> @@ -1228,6 +1228,9 @@ static int generic_hdmi_build_jack(struc
>  	int pcmdev = spec->pcm_rec[pin_idx].device;
>  
>  	snprintf(hdmi_str, sizeof(hdmi_str), "HDMI/DP,pcm=%d", pcmdev);
> +	if (!is_jack_detectable(codec, per_pin->pin_nid))
> +		strncat(hdmi_str, " Phantom",
> +			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
>  
>  	err = snd_hda_input_jack_add(codec, per_pin->pin_nid,
>  			     SND_JACK_VIDEOOUT, pcmdev > 0 ? hdmi_str : NULL);
> 
> 
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> 

-- 
Ben Hutchings
Always try to do things in chronological order;
it's less confusing that way.

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