This is a note to let you know that I've just added the patch titled
ALSA: hda - Fix EAPD GPIO control for Sigmatel codecs
to the 3.10-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-fix-eapd-gpio-control-for-sigmatel-codecs.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1ea9a69d1a36a5b62bf281ba8bb304fcac656dad Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@xxxxxxx>
Date: Fri, 19 Jul 2013 07:58:02 +0200
Subject: ALSA: hda - Fix EAPD GPIO control for Sigmatel codecs
From: Takashi Iwai <tiwai@xxxxxxx>
commit 1ea9a69d1a36a5b62bf281ba8bb304fcac656dad upstream.
The EAPD GPIO is dynamically turned on/off for some machines with
Sigmatel codecs, but this didn't work as expected, and it resulted in
spontaneous lost of speaker outputs per HP plugging or power-saving.
This patch fixes the bug by simply including spec->eapd_mask into
spec->gpio_mask and spec->gpio_data bits.
Reported-and-tested-by: Eric Shattow <lucent@xxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/pci/hda/patch_sigmatel.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -417,9 +417,11 @@ static void stac_update_outputs(struct h
val &= ~spec->eapd_mask;
else
val |= spec->eapd_mask;
- if (spec->gpio_data != val)
+ if (spec->gpio_data != val) {
+ spec->gpio_data = val;
stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir,
val);
+ }
}
}
@@ -3608,20 +3610,18 @@ static int stac_parse_auto_config(struct
static int stac_init(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
- unsigned int gpio;
int i;
/* override some hints */
stac_store_hints(codec);
/* set up GPIO */
- gpio = spec->gpio_data;
/* turn on EAPD statically when spec->eapd_switch isn't set.
* otherwise, unsol event will turn it on/off dynamically
*/
if (!spec->eapd_switch)
- gpio |= spec->eapd_mask;
- stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, gpio);
+ spec->gpio_data |= spec->eapd_mask;
+ stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, spec->gpio_data);
snd_hda_gen_init(codec);
@@ -3921,6 +3921,7 @@ static void stac_setup_gpio(struct hda_c
{
struct sigmatel_spec *spec = codec->spec;
+ spec->gpio_mask |= spec->eapd_mask;
if (spec->gpio_led) {
if (!spec->vref_mute_led_nid) {
spec->gpio_mask |= spec->gpio_led;
Patches currently in stable-queue which might be from tiwai@xxxxxxx are
queue-3.10/alsa-hda-fix-eapd-gpio-control-for-sigmatel-codecs.patch
queue-3.10/media-saa7134-fix-unlocked-snd_pcm_stop-call.patch
queue-3.10/alsa-hda-remove-no_presence-bit-override-for-dell-1420n-laptop.patch
queue-3.10/alsa-usb-audio-6fire-return-correct-xrun-indication.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html