3 files changed, 56 insertions, 19 deletions

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 49b797ccc8d6..bfd036a2c83c 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -60,6 +60,8 @@ 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 {
@@ -76,6 +78,7 @@ 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;
@@ -1076,7 +1079,7 @@ 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;
         }
@@ -1103,7 +1106,7 @@ 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);
                 }
@@ -1345,11 +1348,25 @@ 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;
@@ -1360,7 +1377,8 @@ 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;
@@ -1406,6 +1424,7 @@ 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;
 
@@ -1415,7 +1434,8 @@ 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;
@@ -1427,7 +1447,9 @@ 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);
         }
diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index 2d64502c0c5b..9d61a1d6fce0 100644
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -127,9 +127,6 @@ static int tpa6130a2_power(int power)
 
         mutex_lock(&data->mutex);
         if (power && !data->power_state) {
-                /* Power on */
-                if (data->power_gpio >= 0)
-                        gpio_set_value(data->power_gpio, 1);
 
                 ret = regulator_enable(data->supply);
                 if (ret != 0) {
@@ -137,6 +134,9 @@ static int tpa6130a2_power(int power)
                                 "Failed to enable supply: %d\n", ret);
                         goto exit;
                 }
+                /* Power on */
+                if (data->power_gpio >= 0)
+                        gpio_set_value(data->power_gpio, 1);
 
                 data->power_state = 1;
                 ret = tpa6130a2_initialize();
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 0488d5514cd8..c173cf00f5cb 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -232,6 +232,16 @@ static int twl4030_write(struct snd_soc_codec *codec,
         return 0;
 }
 
+static inline void twl4030_wait_ms(int time)
+{
+        if (time < 60) {
+                time *= 1000;
+                usleep_range(time, time + 500);
+        } else {
+                msleep(time);
+        }
+}
+
 static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable)
 {
         struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
@@ -337,10 +347,14 @@ static void twl4030_init_chip(struct snd_soc_codec *codec)
         twl4030_write(codec, TWL4030_REG_ANAMICL,
                 reg | TWL4030_CNCL_OFFSET_START);
 
-        /* wait for offset cancellation to complete */
+        /*
+         * Wait for offset cancellation to complete.
+         * Since this takes a while, do not slam the i2c.
+         * Start polling the status after ~20ms.
+         */
+        msleep(20);
         do {
-                /* this takes a little while, so don't slam i2c */
-                udelay(2000);
+                usleep_range(1000, 2000);
                 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
                                     TWL4030_REG_ANAMICL);
         } while ((i++ < 100) &&
@@ -724,9 +738,12 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp)
         /* Base values for ramp delay calculation: 2^19 - 2^26 */
         unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
                                     8388608, 16777216, 33554432, 67108864};
+        unsigned int delay;
 
         hs_gain = twl4030_read_reg_cache(codec, TWL4030_REG_HS_GAIN_SET);
         hs_pop = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET);
+        delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
+                twl4030->sysclk) + 1;
 
         /* Enable external mute control, this dramatically reduces
          * the pop-noise */
@@ -750,16 +767,14 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp)
                 hs_pop |= TWL4030_RAMP_EN;
                 twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
                 /* Wait ramp delay time + 1, so the VMID can settle */
-                mdelay((ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
-                        twl4030->sysclk) + 1);
+                twl4030_wait_ms(delay);
         } else {
                 /* Headset ramp-down _not_ according to
                  * the TRM, but in a way that it is working */
                 hs_pop &= ~TWL4030_RAMP_EN;
                 twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
                 /* Wait ramp delay time + 1, so the VMID can settle */
-                mdelay((ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
-                        twl4030->sysclk) + 1);
+                twl4030_wait_ms(delay);
                 /* Bypass the reg_cache to mute the headset */
                 twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
                                         hs_gain & (~0x0f),
@@ -834,7 +849,7 @@ static int digimic_event(struct snd_soc_dapm_widget *w,
         struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
 
         if (twl4030->digimic_delay)
-                mdelay(twl4030->digimic_delay);
+                twl4030_wait_ms(twl4030->digimic_delay);
         return 0;
 }
 
@@ -2257,9 +2272,12 @@ static int twl4030_soc_probe(struct snd_soc_codec *codec)
 
 static int twl4030_soc_remove(struct snd_soc_codec *codec)
 {
+        struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
+
         /* Reset registers to their chip default before leaving */
         twl4030_reset_registers(codec);
         twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
+        kfree(twl4030);
         return 0;
 }
 
@@ -2291,10 +2309,7 @@ static int __devinit twl4030_codec_probe(struct platform_device *pdev)
 
 static int __devexit twl4030_codec_remove(struct platform_device *pdev)
 {
-        struct twl4030_priv *twl4030 = dev_get_drvdata(&pdev->dev);
-
         snd_soc_unregister_codec(&pdev->dev);
-        kfree(twl4030);
         return 0;
 }