linux-kernel - Re: [Regression] No sound on HP Pavilion dv6, STAC92xx

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Message-ID: <87zk7pyvc8.fsf@canonical.com>
Date:	Wed, 27 Jun 2012 10:09:43 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	alsa-devel@...a-project.org, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [Regression] No sound on HP Pavilion dv6, STAC92xx

Hi,

Takashi Iwai <tiwai@...e.de> writes:

> Below is the patch for 3.4 and older.
>

Just to let you know that we are receiving positive feedback on this
patch from the bug reporters.

I believe you plan to Cc: this patch to -stable, right?  We had this
issue reported against 3.2.y.

Cheers,
--
Luis

> Takashi
>
> ---
> From: Takashi Iwai <tiwai@...e.de>
> Subject: [PATCH] ALSA: hda - Fix power-map regression for HP dv6 & co
>
> commit 6e1c39c6b00d9141a82c231ba7c5e5b1716974b2 upstream.
>
> The recent fix for power-map controls (commit b0791dda813) caused
> regressions on some other HP laptops.  They have fixed pins but these
> pins are exposed as jack-detectable.  Thus the driver tries to control
> the power-map dynamically per jack detection where it never gets on.
>
> This patch corrects the condition check for fixed pins so that the
> power-map is set always for these pins.
>
> NOTE: this is no simple backport from 3.5 kernel.  Since 3.5 kernel
> had significant code change in the relevant part, I had to fix this
> differently.
>
> BugLink: http://bugs.launchpad.net/bugs/1013183
> Reported-by: Luis Henriques <luis.henriques@...onical.com>
> Signed-off-by: Takashi Iwai <tiwai@...e.de>
> ---
>  sound/pci/hda/patch_sigmatel.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
> index 7b7a516..2b973f5 100644
> --- a/sound/pci/hda/patch_sigmatel.c
> +++ b/sound/pci/hda/patch_sigmatel.c
> @@ -4457,7 +4457,7 @@ static int stac92xx_init(struct hda_codec *codec)
>  					 AC_PINCTL_IN_EN);
>  	for (i = 0; i < spec->num_pwrs; i++)  {
>  		hda_nid_t nid = spec->pwr_nids[i];
> -		int pinctl, def_conf;
> +		unsigned int pinctl, def_conf;
>  
>  		/* power on when no jack detection is available */
>  		/* or when the VREF is used for controlling LED */
> @@ -4484,7 +4484,7 @@ static int stac92xx_init(struct hda_codec *codec)
>  		def_conf = get_defcfg_connect(def_conf);
>  		/* skip any ports that don't have jacks since presence
>   		 * detection is useless */
> -		if (def_conf != AC_JACK_PORT_NONE &&
> +		if (def_conf != AC_JACK_PORT_COMPLEX ||
>  		    !is_jack_detectable(codec, nid)) {
>  			stac_toggle_power_map(codec, nid, 1);
>  			continue;
--
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