diff options
Diffstat (limited to 'sound/soc/soc-core.c')
-rw-r--r-- | sound/soc/soc-core.c | 541 |
1 files changed, 217 insertions, 324 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 051c006281f5..b0ed28caf662 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -154,22 +154,15 @@ static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, step = codec->driver->reg_cache_step; for (i = 0; i < codec->driver->reg_cache_size; i += step) { - if (!snd_soc_codec_readable_register(codec, i)) - continue; - if (codec->driver->display_register) { - count += codec->driver->display_register(codec, buf + count, - PAGE_SIZE - count, i); - } else { - /* only support larger than PAGE_SIZE bytes debugfs - * entries for the default case */ - if (p >= pos) { - if (total + len >= count - 1) - break; - format_register_str(codec, i, buf + total, len); - total += len; - } - p += len; + /* only support larger than PAGE_SIZE bytes debugfs + * entries for the default case */ + if (p >= pos) { + if (total + len >= count - 1) + break; + format_register_str(codec, i, buf + total, len); + total += len; } + p += len; } total = min(total, count - 1); @@ -854,14 +847,47 @@ EXPORT_SYMBOL_GPL(snd_soc_resume); static const struct snd_soc_dai_ops null_dai_ops = { }; +static struct snd_soc_codec *soc_find_codec(const struct device_node *codec_of_node, + const char *codec_name) +{ + struct snd_soc_codec *codec; + + list_for_each_entry(codec, &codec_list, list) { + if (codec_of_node) { + if (codec->dev->of_node != codec_of_node) + continue; + } else { + if (strcmp(codec->name, codec_name)) + continue; + } + + return codec; + } + + return NULL; +} + +static struct snd_soc_dai *soc_find_codec_dai(struct snd_soc_codec *codec, + const char *codec_dai_name) +{ + struct snd_soc_dai *codec_dai; + + list_for_each_entry(codec_dai, &codec->component.dai_list, list) { + if (!strcmp(codec_dai->name, codec_dai_name)) { + return codec_dai; + } + } + + return NULL; +} + static int soc_bind_dai_link(struct snd_soc_card *card, int num) { struct snd_soc_dai_link *dai_link = &card->dai_link[num]; struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; struct snd_soc_component *component; - struct snd_soc_codec *codec; struct snd_soc_platform *platform; - struct snd_soc_dai *codec_dai, *cpu_dai; + struct snd_soc_dai *cpu_dai; const char *platform_name; dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); @@ -889,42 +915,24 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num) return -EPROBE_DEFER; } - /* Find CODEC from registered CODECs */ - list_for_each_entry(codec, &codec_list, list) { - if (dai_link->codec_of_node) { - if (codec->dev->of_node != dai_link->codec_of_node) - continue; - } else { - if (strcmp(codec->name, dai_link->codec_name)) - continue; - } - - rtd->codec = codec; - - /* - * CODEC found, so find CODEC DAI from registered DAIs from - * this CODEC - */ - list_for_each_entry(codec_dai, &codec->component.dai_list, list) { - if (!strcmp(codec_dai->name, dai_link->codec_dai_name)) { - rtd->codec_dai = codec_dai; - break; - } - } - - if (!rtd->codec_dai) { - dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", - dai_link->codec_dai_name); - return -EPROBE_DEFER; - } - } - + /* Find CODEC from registered list */ + rtd->codec = soc_find_codec(dai_link->codec_of_node, + dai_link->codec_name); if (!rtd->codec) { dev_err(card->dev, "ASoC: CODEC %s not registered\n", dai_link->codec_name); return -EPROBE_DEFER; } + /* Find CODEC DAI from registered list */ + rtd->codec_dai = soc_find_codec_dai(rtd->codec, + dai_link->codec_dai_name); + if (!rtd->codec_dai) { + dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", + dai_link->codec_dai_name); + return -EPROBE_DEFER; + } + /* if there's no platform we match on the empty platform */ platform_name = dai_link->platform_name; if (!platform_name && !dai_link->platform_of_node) @@ -995,21 +1003,10 @@ static void soc_remove_codec(struct snd_soc_codec *codec) module_put(codec->dev->driver->owner); } -static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) +static void soc_remove_codec_dai(struct snd_soc_dai *codec_dai, int order) { - struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; - struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; int err; - /* unregister the rtd device */ - if (rtd->dev_registered) { - device_remove_file(rtd->dev, &dev_attr_pmdown_time); - device_remove_file(rtd->dev, &dev_attr_codec_reg); - device_unregister(rtd->dev); - rtd->dev_registered = 0; - } - - /* remove the CODEC DAI */ if (codec_dai && codec_dai->probed && codec_dai->driver->remove_order == order) { if (codec_dai->driver->remove) { @@ -1022,6 +1019,24 @@ static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) codec_dai->probed = 0; list_del(&codec_dai->card_list); } +} + +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_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; + int err; + + /* unregister the rtd device */ + if (rtd->dev_registered) { + device_remove_file(rtd->dev, &dev_attr_pmdown_time); + device_remove_file(rtd->dev, &dev_attr_codec_reg); + device_unregister(rtd->dev); + rtd->dev_registered = 0; + } + + /* remove the CODEC DAI */ + soc_remove_codec_dai(codec_dai, order); /* remove the cpu_dai */ if (cpu_dai && cpu_dai->probed && @@ -1127,26 +1142,31 @@ static int soc_probe_codec(struct snd_soc_card *card, soc_init_codec_debugfs(codec); - if (driver->dapm_widgets) - snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, - driver->num_dapm_widgets); + if (driver->dapm_widgets) { + ret = snd_soc_dapm_new_controls(&codec->dapm, + driver->dapm_widgets, + driver->num_dapm_widgets); - /* Create DAPM widgets for each DAI stream */ - list_for_each_entry(dai, &codec->component.dai_list, list) - snd_soc_dapm_new_dai_widgets(&codec->dapm, dai); + if (ret != 0) { + dev_err(codec->dev, + "Failed to create new controls %d\n", ret); + goto err_probe; + } + } - codec->dapm.idle_bias_off = driver->idle_bias_off; + /* Create DAPM widgets for each DAI stream */ + list_for_each_entry(dai, &codec->component.dai_list, list) { + ret = snd_soc_dapm_new_dai_widgets(&codec->dapm, dai); - if (!codec->write && dev_get_regmap(codec->dev, NULL)) { - /* Set the default I/O up try regmap */ - ret = snd_soc_codec_set_cache_io(codec, NULL); - if (ret < 0) { + if (ret != 0) { dev_err(codec->dev, - "Failed to set cache I/O: %d\n", ret); + "Failed to create DAI widgets %d\n", ret); goto err_probe; } } + codec->dapm.idle_bias_off = driver->idle_bias_off; + if (driver->probe) { ret = driver->probe(codec); if (ret < 0) { @@ -1366,6 +1386,67 @@ static int soc_probe_link_components(struct snd_soc_card *card, int num, return 0; } +static int soc_probe_codec_dai(struct snd_soc_card *card, + struct snd_soc_dai *codec_dai, + int order) +{ + int ret; + + if (!codec_dai->probed && codec_dai->driver->probe_order == order) { + if (codec_dai->driver->probe) { + ret = codec_dai->driver->probe(codec_dai); + if (ret < 0) { + dev_err(codec_dai->dev, + "ASoC: failed to probe CODEC DAI %s: %d\n", + codec_dai->name, ret); + return ret; + } + } + + /* mark codec_dai as probed and add to card dai list */ + codec_dai->probed = 1; + list_add(&codec_dai->card_list, &card->dai_dev_list); + } + + return 0; +} + +static int soc_link_dai_widgets(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link, + struct snd_soc_dai *cpu_dai, + struct snd_soc_dai *codec_dai) +{ + struct snd_soc_dapm_widget *play_w, *capture_w; + int ret; + + /* link the DAI widgets */ + play_w = codec_dai->playback_widget; + capture_w = cpu_dai->capture_widget; + if (play_w && capture_w) { + ret = snd_soc_dapm_new_pcm(card, dai_link->params, + capture_w, play_w); + if (ret != 0) { + dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", + play_w->name, capture_w->name, ret); + return ret; + } + } + + play_w = cpu_dai->playback_widget; + capture_w = codec_dai->capture_widget; + if (play_w && capture_w) { + ret = snd_soc_dapm_new_pcm(card, dai_link->params, + capture_w, play_w); + if (ret != 0) { + dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", + play_w->name, capture_w->name, ret); + 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]; @@ -1374,7 +1455,6 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) struct snd_soc_platform *platform = rtd->platform; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dapm_widget *play_w, *capture_w; int ret; dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", @@ -1415,21 +1495,9 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) } /* probe the CODEC DAI */ - if (!codec_dai->probed && codec_dai->driver->probe_order == order) { - if (codec_dai->driver->probe) { - ret = codec_dai->driver->probe(codec_dai); - if (ret < 0) { - dev_err(codec_dai->dev, - "ASoC: failed to probe CODEC DAI %s: %d\n", - codec_dai->name, ret); - return ret; - } - } - - /* mark codec_dai as probed and add to card dai list */ - codec_dai->probed = 1; - list_add(&codec_dai->card_list, &card->dai_dev_list); - } + ret = soc_probe_codec_dai(card, codec_dai, order); + if (ret) + return ret; /* complete DAI probe during last probe */ if (order != SND_SOC_COMP_ORDER_LAST) @@ -1467,29 +1535,10 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) codec2codec_close_delayed_work); /* link the DAI widgets */ - play_w = codec_dai->playback_widget; - capture_w = cpu_dai->capture_widget; - if (play_w && capture_w) { - ret = snd_soc_dapm_new_pcm(card, dai_link->params, - capture_w, play_w); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - play_w->name, capture_w->name, ret); - return ret; - } - } - - play_w = cpu_dai->playback_widget; - capture_w = codec_dai->capture_widget; - if (play_w && capture_w) { - ret = snd_soc_dapm_new_pcm(card, dai_link->params, - capture_w, play_w); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - play_w->name, capture_w->name, ret); - return ret; - } - } + ret = soc_link_dai_widgets(card, dai_link, + cpu_dai, codec_dai); + if (ret) + return ret; } } @@ -1501,14 +1550,15 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) } #ifdef CONFIG_SND_SOC_AC97_BUS -static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) +static int soc_register_ac97_codec(struct snd_soc_codec *codec, + struct snd_soc_dai *codec_dai) { int ret; /* Only instantiate AC97 if not already done by the adaptor * for the generic AC97 subsystem. */ - if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { + if (codec_dai->driver->ac97_control && !codec->ac97_registered) { /* * It is possible that the AC97 device is already registered to * the device subsystem. This happens when the device is created @@ -1517,28 +1567,38 @@ static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) * * In those cases we don't try to register the device again. */ - if (!rtd->codec->ac97_created) + if (!codec->ac97_created) return 0; - ret = soc_ac97_dev_register(rtd->codec); + ret = soc_ac97_dev_register(codec); if (ret < 0) { - dev_err(rtd->codec->dev, + dev_err(codec->dev, "ASoC: AC97 device register failed: %d\n", ret); return ret; } - rtd->codec->ac97_registered = 1; + codec->ac97_registered = 1; } return 0; } -static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) +static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) +{ + return soc_register_ac97_codec(rtd->codec, rtd->codec_dai); +} + +static void soc_unregister_ac97_codec(struct snd_soc_codec *codec) { if (codec->ac97_registered) { soc_ac97_dev_unregister(codec); codec->ac97_registered = 0; } } + +static void soc_unregister_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) +{ + soc_unregister_ac97_codec(rtd->codec); +} #endif static int soc_check_aux_dev(struct snd_soc_card *card, int num) @@ -1837,7 +1897,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) dev_err(card->dev, "ASoC: failed to register AC97: %d\n", ret); while (--i >= 0) - soc_unregister_ac97_dai_link(card->rtd[i].codec); + soc_unregister_ac97_dai_link(&card->rtd[i]); goto probe_aux_dev_err; } } @@ -1980,92 +2040,6 @@ static struct platform_driver soc_driver = { }; /** - * snd_soc_codec_volatile_register: Report if a register is volatile. - * - * @codec: CODEC to query. - * @reg: Register to query. - * - * Boolean function indiciating if a CODEC register is volatile. - */ -int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, - unsigned int reg) -{ - if (codec->volatile_register) - return codec->volatile_register(codec, reg); - else - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); - -/** - * snd_soc_codec_readable_register: Report if a register is readable. - * - * @codec: CODEC to query. - * @reg: Register to query. - * - * Boolean function indicating if a CODEC register is readable. - */ -int snd_soc_codec_readable_register(struct snd_soc_codec *codec, - unsigned int reg) -{ - if (codec->readable_register) - return codec->readable_register(codec, reg); - else - return 1; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); - -/** - * snd_soc_codec_writable_register: Report if a register is writable. - * - * @codec: CODEC to query. - * @reg: Register to query. - * - * Boolean function indicating if a CODEC register is writable. - */ -int snd_soc_codec_writable_register(struct snd_soc_codec *codec, - unsigned int reg) -{ - if (codec->writable_register) - return codec->writable_register(codec, reg); - else - return 1; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); - -int snd_soc_platform_read(struct snd_soc_platform *platform, - unsigned int reg) -{ - unsigned int ret; - - if (!platform->driver->read) { - dev_err(platform->dev, "ASoC: platform has no read back\n"); - return -1; - } - - ret = platform->driver->read(platform, reg); - dev_dbg(platform->dev, "read %x => %x\n", reg, ret); - trace_snd_soc_preg_read(platform, reg, ret); - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_platform_read); - -int snd_soc_platform_write(struct snd_soc_platform *platform, - unsigned int reg, unsigned int val) -{ - if (!platform->driver->write) { - dev_err(platform->dev, "ASoC: platform has no write back\n"); - return -1; - } - - dev_dbg(platform->dev, "write %x = %x\n", reg, val); - trace_snd_soc_preg_write(platform, reg, val); - return platform->driver->write(platform, reg, val); -} -EXPORT_SYMBOL_GPL(snd_soc_platform_write); - -/** * snd_soc_new_ac97_codec - initailise AC97 device * @codec: audio codec * @ops: AC97 bus operations @@ -2273,7 +2247,7 @@ void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) { mutex_lock(&codec->mutex); #ifdef CONFIG_SND_SOC_AC97_BUS - soc_unregister_ac97_dai_link(codec); + soc_unregister_ac97_codec(codec); #endif kfree(codec->ac97->bus); kfree(codec->ac97); @@ -2283,118 +2257,6 @@ void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) } EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); -unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) -{ - unsigned int ret; - - ret = codec->read(codec, reg); - dev_dbg(codec->dev, "read %x => %x\n", reg, ret); - trace_snd_soc_reg_read(codec, reg, ret); - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_read); - -unsigned int snd_soc_write(struct snd_soc_codec *codec, - unsigned int reg, unsigned int val) -{ - dev_dbg(codec->dev, "write %x = %x\n", reg, val); - trace_snd_soc_reg_write(codec, reg, val); - return codec->write(codec, reg, val); -} -EXPORT_SYMBOL_GPL(snd_soc_write); - -/** - * snd_soc_update_bits - update codec register bits - * @codec: audio codec - * @reg: codec register - * @mask: register mask - * @value: new value - * - * Writes new register value. - * - * Returns 1 for change, 0 for no change, or negative error code. - */ -int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, - unsigned int mask, unsigned int value) -{ - bool change; - unsigned int old, new; - int ret; - - if (codec->using_regmap) { - ret = regmap_update_bits_check(codec->control_data, reg, - mask, value, &change); - } else { - ret = snd_soc_read(codec, reg); - if (ret < 0) - return ret; - - old = ret; - new = (old & ~mask) | (value & mask); - change = old != new; - if (change) - ret = snd_soc_write(codec, reg, new); - } - - if (ret < 0) - return ret; - - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_update_bits); - -/** - * snd_soc_update_bits_locked - update codec register bits - * @codec: audio codec - * @reg: codec register - * @mask: register mask - * @value: new value - * - * Writes new register value, and takes the codec mutex. - * - * Returns 1 for change else 0. - */ -int snd_soc_update_bits_locked(struct snd_soc_codec *codec, - unsigned short reg, unsigned int mask, - unsigned int value) -{ - int change; - - mutex_lock(&codec->mutex); - change = snd_soc_update_bits(codec, reg, mask, value); - mutex_unlock(&codec->mutex); - - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); - -/** - * snd_soc_test_bits - test register for change - * @codec: audio codec - * @reg: codec register - * @mask: register mask - * @value: new value - * - * Tests a register with a new value and checks if the new value is - * different from the old value. - * - * Returns 1 for change else 0. - */ -int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, - unsigned int mask, unsigned int value) -{ - int change; - unsigned int old, new; - - old = snd_soc_read(codec, reg); - new = (old & ~mask) | value; - change = old != new; - - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_test_bits); - /** * snd_soc_cnew - create new control * @_template: control template @@ -2896,7 +2758,7 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, int min = mc->min; int mask = (1 << (fls(min + max) - 1)) - 1; int err = 0; - unsigned short val, val_mask, val2 = 0; + unsigned int val, val_mask, val2 = 0; val_mask = mask << shift; val = (ucontrol->value.integer.value[0] + min) & mask; @@ -3343,7 +3205,7 @@ int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int regbase = mc->regbase; unsigned int regcount = mc->regcount; - unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; + unsigned int regwshift = codec->val_bytes * BITS_PER_BYTE; unsigned int regwmask = (1<<regwshift)-1; unsigned int invert = mc->invert; unsigned long mask = (1UL<<mc->nbits)-1; @@ -3389,7 +3251,7 @@ int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int regbase = mc->regbase; unsigned int regcount = mc->regcount; - unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; + unsigned int regwshift = codec->val_bytes * BITS_PER_BYTE; unsigned int regwmask = (1<<regwshift)-1; unsigned int invert = mc->invert; unsigned long mask = (1UL<<mc->nbits)-1; @@ -4084,6 +3946,7 @@ int snd_soc_register_component(struct device *dev, } cmpnt->ignore_pmdown_time = true; + cmpnt->registered_as_component = true; return __snd_soc_register_component(dev, cmpnt, cmpnt_drv, NULL, dai_drv, num_dai, true); @@ -4099,7 +3962,7 @@ void snd_soc_unregister_component(struct device *dev) struct snd_soc_component *cmpnt; list_for_each_entry(cmpnt, &component_list, list) { - if (dev == cmpnt->dev) + if (dev == cmpnt->dev && cmpnt->registered_as_component) goto found; } return; @@ -4125,6 +3988,8 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_component); int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, const struct snd_soc_platform_driver *platform_drv) { + int ret; + /* create platform component name */ platform->name = fmt_single_name(dev, &platform->id); if (platform->name == NULL) @@ -4137,6 +4002,16 @@ int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, platform->dapm.stream_event = platform_drv->stream_event; mutex_init(&platform->mutex); + /* register component */ + ret = __snd_soc_register_component(dev, &platform->component, + &platform_drv->component_driver, + NULL, NULL, 0, false); + if (ret < 0) { + dev_err(platform->component.dev, + "ASoC: Failed to register component: %d\n", ret); + return ret; + } + mutex_lock(&client_mutex); list_add(&platform->list, &platform_list); mutex_unlock(&client_mutex); @@ -4178,6 +4053,8 @@ EXPORT_SYMBOL_GPL(snd_soc_register_platform); */ void snd_soc_remove_platform(struct snd_soc_platform *platform) { + snd_soc_unregister_component(platform->dev); + mutex_lock(&client_mutex); list_del(&platform->list); mutex_unlock(&client_mutex); @@ -4263,6 +4140,7 @@ int snd_soc_register_codec(struct device *dev, int num_dai) { struct snd_soc_codec *codec; + struct regmap *regmap; int ret, i; dev_dbg(dev, "codec register %s\n", dev_name(dev)); @@ -4280,9 +4158,6 @@ int snd_soc_register_codec(struct device *dev, codec->write = codec_drv->write; codec->read = codec_drv->read; - codec->volatile_register = codec_drv->volatile_register; - codec->readable_register = codec_drv->readable_register; - codec->writable_register = codec_drv->writable_register; codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; codec->dapm.bias_level = SND_SOC_BIAS_OFF; codec->dapm.dev = dev; @@ -4292,8 +4167,26 @@ int snd_soc_register_codec(struct device *dev, codec->dev = dev; codec->driver = codec_drv; codec->num_dai = num_dai; + codec->val_bytes = codec_drv->reg_word_size; mutex_init(&codec->mutex); + if (!codec->write) { + if (codec_drv->get_regmap) + regmap = codec_drv->get_regmap(dev); + else + regmap = dev_get_regmap(dev, NULL); + + if (regmap) { + ret = snd_soc_codec_set_cache_io(codec, regmap); + if (ret && ret != -ENOTSUPP) { + dev_err(codec->dev, + "Failed to set cache I/O:%d\n", + ret); + return ret; + } + } + } + for (i = 0; i < num_dai; i++) { fixup_codec_formats(&dai_drv[i].playback); fixup_codec_formats(&dai_drv[i].capture); |