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authorTakashi Iwai <tiwai@suse.de>2013-07-19 07:58:02 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-07-28 16:30:22 -0700
commit9c563a54c85bcd531cc671d9575d4dff64852124 (patch)
tree5ab829f83f48be2376e7d3e904190e084f49bef4
parent5a0ecab6b7f55d7b2162e95c396ce778f2f2154c (diff)
ALSA: hda - Fix EAPD GPIO control for Sigmatel codecs
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@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--sound/pci/hda/patch_sigmatel.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 486df8a867c8..e849e1e0d7d9 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -417,9 +417,11 @@ static void stac_update_outputs(struct hda_codec *codec)
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 hda_codec *codec)
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_codec *codec)
{
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;