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authorTakashi Iwai <tiwai@suse.de>2010-11-23 12:45:05 +0100
committerTakashi Iwai <tiwai@suse.de>2010-11-23 12:45:05 +0100
commit2ab46c9390e74368a38ddb5aa525124518df8b69 (patch)
tree631e686fb11709add69f07b4fd1e5aaa10f232de /sound/soc/codecs/tlv320aic3x.c
parent9e18e1869f5ebac69f0d881fe97a198ebc0834db (diff)
parent5b3b0fa8fb0db9645b56361cdc9a9d0ddbc35e4d (diff)
Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/asoc-2.6 into topic/asoc
Conflicts: sound/soc/codecs/tpa6130a2.c
Diffstat (limited to 'sound/soc/codecs/tlv320aic3x.c')
-rw-r--r--sound/soc/codecs/tlv320aic3x.c32
1 files changed, 27 insertions, 5 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index df726a5066e..11a0a3d1705 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -61,6 +61,8 @@ static const char *aic3x_supply_names[AIC3X_NUM_SUPPLIES] = {
"DRVDD", /* ADC Analog and Output Driver Voltage */
};
+static LIST_HEAD(reset_list);
+
struct aic3x_priv;
struct aic3x_disable_nb {
@@ -77,6 +79,7 @@ struct aic3x_priv {
struct aic3x_setup_data *setup;
void *control_data;
unsigned int sysclk;
+ struct list_head list;
int master;
int gpio_reset;
int power;
@@ -1077,7 +1080,7 @@ static int aic3x_regulator_event(struct notifier_block *nb,
* Put codec to reset and require cache sync as at least one
* of the supplies was disabled
*/
- if (aic3x->gpio_reset >= 0)
+ if (gpio_is_valid(aic3x->gpio_reset))
gpio_set_value(aic3x->gpio_reset, 0);
aic3x->codec->cache_sync = 1;
}
@@ -1104,7 +1107,7 @@ static int aic3x_set_power(struct snd_soc_codec *codec, int power)
if (!codec->cache_sync)
goto out;
- if (aic3x->gpio_reset >= 0) {
+ if (gpio_is_valid(aic3x->gpio_reset)) {
udelay(1);
gpio_set_value(aic3x->gpio_reset, 1);
}
@@ -1346,11 +1349,25 @@ static int aic3x_init(struct snd_soc_codec *codec)
return 0;
}
+static bool aic3x_is_shared_reset(struct aic3x_priv *aic3x)
+{
+ struct aic3x_priv *a;
+
+ list_for_each_entry(a, &reset_list, list) {
+ if (gpio_is_valid(aic3x->gpio_reset) &&
+ aic3x->gpio_reset == a->gpio_reset)
+ return true;
+ }
+
+ return false;
+}
+
static int aic3x_probe(struct snd_soc_codec *codec)
{
struct aic3x_priv *aic3x = snd_soc_codec_get_drvdata(codec);
int ret, i;
+ INIT_LIST_HEAD(&aic3x->list);
codec->control_data = aic3x->control_data;
aic3x->codec = codec;
codec->dapm.idle_bias_off = 1;
@@ -1361,7 +1378,8 @@ static int aic3x_probe(struct snd_soc_codec *codec)
return ret;
}
- if (aic3x->gpio_reset >= 0) {
+ if (gpio_is_valid(aic3x->gpio_reset) &&
+ !aic3x_is_shared_reset(aic3x)) {
ret = gpio_request(aic3x->gpio_reset, "tlv320aic3x reset");
if (ret != 0)
goto err_gpio;
@@ -1407,6 +1425,7 @@ static int aic3x_probe(struct snd_soc_codec *codec)
snd_soc_add_controls(codec, &aic3x_classd_amp_gain_ctrl, 1);
aic3x_add_widgets(codec);
+ list_add(&aic3x->list, &reset_list);
return 0;
@@ -1416,7 +1435,8 @@ err_notif:
&aic3x->disable_nb[i].nb);
regulator_bulk_free(ARRAY_SIZE(aic3x->supplies), aic3x->supplies);
err_get:
- if (aic3x->gpio_reset >= 0)
+ if (gpio_is_valid(aic3x->gpio_reset) &&
+ !aic3x_is_shared_reset(aic3x))
gpio_free(aic3x->gpio_reset);
err_gpio:
return ret;
@@ -1428,7 +1448,9 @@ static int aic3x_remove(struct snd_soc_codec *codec)
int i;
aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF);
- if (aic3x->gpio_reset >= 0) {
+ list_del(&aic3x->list);
+ if (gpio_is_valid(aic3x->gpio_reset) &&
+ !aic3x_is_shared_reset(aic3x)) {
gpio_set_value(aic3x->gpio_reset, 0);
gpio_free(aic3x->gpio_reset);
}