1 files changed, 264 insertions, 64 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index b37ee8077ed1..f219b2f7ee68 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -812,13 +812,15 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
 
         /* Find CPU DAI from registered DAIs*/
         list_for_each_entry(cpu_dai, &dai_list, list) {
-                if (dai_link->cpu_dai_of_node) {
-                        if (cpu_dai->dev->of_node != dai_link->cpu_dai_of_node)
-                                continue;
-                } else {
-                        if (strcmp(cpu_dai->name, dai_link->cpu_dai_name))
-                                continue;
-                }
+                if (dai_link->cpu_of_node &&
+                    (cpu_dai->dev->of_node != dai_link->cpu_of_node))
+                        continue;
+                if (dai_link->cpu_name &&
+                    strcmp(dev_name(cpu_dai->dev), dai_link->cpu_name))
+                        continue;
+                if (dai_link->cpu_dai_name &&
+                    strcmp(cpu_dai->name, dai_link->cpu_dai_name))
+                        continue;
 
                 rtd->cpu_dai = cpu_dai;
         }
@@ -896,6 +898,28 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
         return 0;
 }
 
+static int soc_remove_platform(struct snd_soc_platform *platform)
+{
+        int ret;
+
+        if (platform->driver->remove) {
+                ret = platform->driver->remove(platform);
+                if (ret < 0)
+                        pr_err("asoc: failed to remove %s: %d\n",
+                                platform->name, ret);
+        }
+
+        /* Make sure all DAPM widgets are freed */
+        snd_soc_dapm_free(&platform->dapm);
+
+        soc_cleanup_platform_debugfs(platform);
+        platform->probed = 0;
+        list_del(&platform->card_list);
+        module_put(platform->dev->driver->owner);
+
+        return 0;
+}
+
 static void soc_remove_codec(struct snd_soc_codec *codec)
 {
         int err;
@@ -917,11 +941,9 @@ static void soc_remove_codec(struct snd_soc_codec *codec)
         module_put(codec->dev->driver->owner);
 }
 
-static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order)
+static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
 {
         struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
-        struct snd_soc_codec *codec = rtd->codec;
-        struct snd_soc_platform *platform = rtd->platform;
         struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
         int err;
 
@@ -946,30 +968,6 @@ static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order)
                 list_del(&codec_dai->card_list);
         }
 
-        /* remove the platform */
-        if (platform && platform->probed &&
-                        platform->driver->remove_order == order) {
-                if (platform->driver->remove) {
-                        err = platform->driver->remove(platform);
-                        if (err < 0)
-                                pr_err("asoc: failed to remove %s: %d\n",
-                                                        platform->name, err);
-                }
-
-                /* Make sure all DAPM widgets are freed */
-                snd_soc_dapm_free(&platform->dapm);
-
-                soc_cleanup_platform_debugfs(platform);
-                platform->probed = 0;
-                list_del(&platform->card_list);
-                module_put(platform->dev->driver->owner);
-        }
-
-        /* remove the CODEC */
-        if (codec && codec->probed &&
-                        codec->driver->remove_order == order)
-                soc_remove_codec(codec);
-
         /* remove the cpu_dai */
         if (cpu_dai && cpu_dai->probed &&
                         cpu_dai->driver->remove_order == order) {
@@ -981,7 +979,43 @@ static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order)
                 }
                 cpu_dai->probed = 0;
                 list_del(&cpu_dai->card_list);
-                module_put(cpu_dai->dev->driver->owner);
+
+                if (!cpu_dai->codec) {
+                        snd_soc_dapm_free(&cpu_dai->dapm);
+                        module_put(cpu_dai->dev->driver->owner);
+                }
+        }
+}
+
+static void soc_remove_link_components(struct snd_soc_card *card, int num,
+                                       int order)
+{
+        struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        struct snd_soc_platform *platform = rtd->platform;
+        struct snd_soc_codec *codec;
+
+        /* remove the platform */
+        if (platform && platform->probed &&
+            platform->driver->remove_order == order) {
+                soc_remove_platform(platform);
+        }
+
+        /* remove the CODEC-side CODEC */
+        if (codec_dai) {
+                codec = codec_dai->codec;
+                if (codec && codec->probed &&
+                    codec->driver->remove_order == order)
+                        soc_remove_codec(codec);
+        }
+
+        /* remove any CPU-side CODEC */
+        if (cpu_dai) {
+                codec = cpu_dai->codec;
+                if (codec && codec->probed &&
+                    codec->driver->remove_order == order)
+                        soc_remove_codec(codec);
         }
 }
 
@@ -992,8 +1026,15 @@ static void soc_remove_dai_links(struct snd_soc_card *card)
         for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
                         order++) {
                 for (dai = 0; dai < card->num_rtd; dai++)
-                        soc_remove_dai_link(card, dai, order);
+                        soc_remove_link_dais(card, dai, order);
         }
+
+        for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
+                        order++) {
+                for (dai = 0; dai < card->num_rtd; dai++)
+                        soc_remove_link_components(card, dai, order);
+        }
+
         card->num_rtd = 0;
 }
 
@@ -1054,6 +1095,10 @@ static int soc_probe_codec(struct snd_soc_card *card,
                 }
         }
 
+        /* If the driver didn't set I/O up try regmap */
+        if (!codec->control_data)
+                snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
+
         if (driver->controls)
                 snd_soc_add_codec_controls(codec, driver->controls,
                                      driver->num_controls);
@@ -1230,7 +1275,44 @@ out:
         return 0;
 }
 
-static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order)
+static int soc_probe_link_components(struct snd_soc_card *card, int num,
+                                     int order)
+{
+        struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        struct snd_soc_platform *platform = rtd->platform;
+        int ret;
+
+        /* probe the CPU-side component, if it is a CODEC */
+        if (cpu_dai->codec &&
+            !cpu_dai->codec->probed &&
+            cpu_dai->codec->driver->probe_order == order) {
+                ret = soc_probe_codec(card, cpu_dai->codec);
+                if (ret < 0)
+                        return ret;
+        }
+
+        /* probe the CODEC-side component */
+        if (!codec_dai->codec->probed &&
+            codec_dai->codec->driver->probe_order == order) {
+                ret = soc_probe_codec(card, codec_dai->codec);
+                if (ret < 0)
+                        return ret;
+        }
+
+        /* probe the platform */
+        if (!platform->probed &&
+            platform->driver->probe_order == order) {
+                ret = soc_probe_platform(card, platform);
+                if (ret < 0)
+                        return ret;
+        }
+
+        return 0;
+}
+
+static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
 {
         struct snd_soc_dai_link *dai_link = &card->dai_link[num];
         struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
@@ -1255,11 +1337,14 @@ static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order)
         /* probe the cpu_dai */
         if (!cpu_dai->probed &&
                         cpu_dai->driver->probe_order == order) {
-                cpu_dai->dapm.card = card;
-                if (!try_module_get(cpu_dai->dev->driver->owner))
-                        return -ENODEV;
+                if (!cpu_dai->codec) {
+                        cpu_dai->dapm.card = card;
+                        if (!try_module_get(cpu_dai->dev->driver->owner))
+                                return -ENODEV;
 
-                snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai);
+                        list_add(&cpu_dai->dapm.list, &card->dapm_list);
+                        snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai);
+                }
 
                 if (cpu_dai->driver->probe) {
                         ret = cpu_dai->driver->probe(cpu_dai);
@@ -1275,22 +1360,6 @@ static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order)
                 list_add(&cpu_dai->card_list, &card->dai_dev_list);
         }
 
-        /* probe the CODEC */
-        if (!codec->probed &&
-                        codec->driver->probe_order == order) {
-                ret = soc_probe_codec(card, codec);
-                if (ret < 0)
-                        return ret;
-        }
-
-        /* probe the platform */
-        if (!platform->probed &&
-                        platform->driver->probe_order == order) {
-                ret = soc_probe_platform(card, platform);
-                if (ret < 0)
-                        return ret;
-        }
-
         /* probe the CODEC DAI */
         if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
                 if (codec_dai->driver->probe) {
@@ -1565,14 +1634,27 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
                         goto card_probe_error;
         }
 
-        /* early DAI link probe */
+        /* probe all components used by DAI links on this card */
         for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
                         order++) {
                 for (i = 0; i < card->num_links; i++) {
-                        ret = soc_probe_dai_link(card, i, order);
+                        ret = soc_probe_link_components(card, i, order);
                         if (ret < 0) {
                                 pr_err("asoc: failed to instantiate card %s: %d\n",
-                               card->name, ret);
+                                       card->name, ret);
+                                goto probe_dai_err;
+                        }
+                }
+        }
+
+        /* probe all DAI links on this card */
+        for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
+                        order++) {
+                for (i = 0; i < card->num_links; i++) {
+                        ret = soc_probe_link_dais(card, i, order);
+                        if (ret < 0) {
+                                pr_err("asoc: failed to instantiate card %s: %d\n",
+                                       card->name, ret);
                                 goto probe_dai_err;
                         }
                 }
@@ -2790,6 +2872,104 @@ int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
 
 /**
+ * snd_soc_info_volsw_range - single mixer info callback with range.
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information, within a range, about a single
+ * mixer control.
+ *
+ * returns 0 for success.
+ */
+int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_info *uinfo)
+{
+        struct soc_mixer_control *mc =
+                (struct soc_mixer_control *)kcontrol->private_value;
+        int platform_max;
+        int min = mc->min;
+
+        if (!mc->platform_max)
+                mc->platform_max = mc->max;
+        platform_max = mc->platform_max;
+
+        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+        uinfo->count = 1;
+        uinfo->value.integer.min = 0;
+        uinfo->value.integer.max = platform_max - min;
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
+
+/**
+ * snd_soc_put_volsw_range - single mixer put value callback with range.
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value, within a range, for a single mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_value *ucontrol)
+{
+        struct soc_mixer_control *mc =
+                (struct soc_mixer_control *)kcontrol->private_value;
+        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+        unsigned int reg = mc->reg;
+        unsigned int shift = mc->shift;
+        int min = mc->min;
+        int max = mc->max;
+        unsigned int mask = (1 << fls(max)) - 1;
+        unsigned int invert = mc->invert;
+        unsigned int val, val_mask;
+
+        val = ((ucontrol->value.integer.value[0] + min) & mask);
+        if (invert)
+                val = max - val;
+        val_mask = mask << shift;
+        val = val << shift;
+
+        return snd_soc_update_bits_locked(codec, reg, val_mask, val);
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
+
+/**
+ * snd_soc_get_volsw_range - single mixer get callback with range
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value, within a range, of a single mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_value *ucontrol)
+{
+        struct soc_mixer_control *mc =
+                (struct soc_mixer_control *)kcontrol->private_value;
+        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+        unsigned int reg = mc->reg;
+        unsigned int shift = mc->shift;
+        int min = mc->min;
+        int max = mc->max;
+        unsigned int mask = (1 << fls(max)) - 1;
+        unsigned int invert = mc->invert;
+
+        ucontrol->value.integer.value[0] =
+                (snd_soc_read(codec, reg) >> shift) & mask;
+        if (invert)
+                ucontrol->value.integer.value[0] =
+                        max - ucontrol->value.integer.value[0];
+        ucontrol->value.integer.value[0] =
+                ucontrol->value.integer.value[0] - min;
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
+
+/**
  * snd_soc_limit_volume - Set new limit to an existing volume control.
  *
  * @codec: where to look for the control
@@ -3346,6 +3526,12 @@ int snd_soc_register_card(struct snd_soc_card *card)
                                 link->name);
                         return -EINVAL;
                 }
+                /* Codec DAI name must be specified */
+                if (!link->codec_dai_name) {
+                        dev_err(card->dev, "codec_dai_name not set for %s\n",
+                                link->name);
+                        return -EINVAL;
+                }
 
                 /*
                  * Platform may be specified by either name or OF node, but
@@ -3358,12 +3544,24 @@ int snd_soc_register_card(struct snd_soc_card *card)
                 }
 
                 /*
-                 * CPU DAI must be specified by 1 of name or OF node,
-                 * not both or neither.
+                 * CPU device may be specified by either name or OF node, but
+                 * can be left unspecified, and will be matched based on DAI
+                 * name alone..
+                 */
+                if (link->cpu_name && link->cpu_of_node) {
+                        dev_err(card->dev,
+                                "Neither/both cpu name/of_node are set for %s\n",
+                                link->name);
+                        return -EINVAL;
+                }
+                /*
+                 * At least one of CPU DAI name or CPU device name/node must be
+                 * specified
                  */
-                if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) {
+                if (!link->cpu_dai_name &&
+                    !(link->cpu_name || link->cpu_of_node)) {
                         dev_err(card->dev,
-                                "Neither/both cpu_dai name/of_node are set for %s\n",
+                                "Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
                                 link->name);
                         return -EINVAL;
                 }
@@ -3938,6 +4136,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                         dev_err(card->dev,
                                 "Property '%s' index %d could not be read: %d\n",
                                 propname, 2 * i, ret);
+                        kfree(routes);
                         return -EINVAL;
                 }
                 ret = of_property_read_string_index(np, propname,
@@ -3946,6 +4145,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                         dev_err(card->dev,
                                 "Property '%s' index %d could not be read: %d\n",
                                 propname, (2 * i) + 1, ret);
+                        kfree(routes);
                         return -EINVAL;
                 }
         }