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Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r--sound/soc/soc-dapm.c86
1 files changed, 48 insertions, 38 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index b05231414c1d..d515e7a78ea8 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2386,11 +2386,10 @@ int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm,
EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power);
static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt,
- char *buf)
+ char *buf, int count)
{
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt);
struct snd_soc_dapm_widget *w;
- int count = 0;
char *state = "not set";
/* card won't be set for the dummy component, as a spot fix
@@ -2423,7 +2422,7 @@ static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt,
case snd_soc_dapm_pinctrl:
case snd_soc_dapm_clock_supply:
if (w->name)
- count += sprintf(buf + count, "%s: %s\n",
+ count += sysfs_emit_at(buf, count, "%s: %s\n",
w->name, w->power ? "On":"Off");
break;
default:
@@ -2445,7 +2444,7 @@ static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt,
state = "Off";
break;
}
- count += sprintf(buf + count, "PM State: %s\n", state);
+ count += sysfs_emit_at(buf, count, "PM State: %s\n", state);
return count;
}
@@ -2463,7 +2462,7 @@ static ssize_t dapm_widget_show(struct device *dev,
for_each_rtd_codec_dais(rtd, i, codec_dai) {
struct snd_soc_component *cmpnt = codec_dai->component;
- count += dapm_widget_show_component(cmpnt, buf + count);
+ count = dapm_widget_show_component(cmpnt, buf, count);
}
mutex_unlock(&rtd->card->dapm_mutex);
@@ -3631,10 +3630,18 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
enum snd_soc_dapm_direction dir;
struct snd_soc_dapm_widget *w;
const char *prefix;
- int ret;
+ int ret = -ENOMEM;
if ((w = dapm_cnew_widget(widget)) == NULL)
- return ERR_PTR(-ENOMEM);
+ goto cnew_failed;
+
+ prefix = soc_dapm_prefix(dapm);
+ if (prefix)
+ w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name);
+ else
+ w->name = kstrdup_const(widget->name, GFP_KERNEL);
+ if (!w->name)
+ goto name_failed;
switch (w->id) {
case snd_soc_dapm_regulator_supply:
@@ -3673,17 +3680,6 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
break;
}
- prefix = soc_dapm_prefix(dapm);
- if (prefix)
- w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name);
- else
- w->name = kstrdup_const(widget->name, GFP_KERNEL);
- if (w->name == NULL) {
- kfree_const(w->sname);
- kfree(w);
- return ERR_PTR(-ENOMEM);
- }
-
switch (w->id) {
case snd_soc_dapm_mic:
w->is_ep = SND_SOC_DAPM_EP_SOURCE;
@@ -3768,12 +3764,13 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
return w;
request_failed:
- if (ret != -EPROBE_DEFER)
- dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n",
- w->name, ret);
-
+ dev_err_probe(dapm->dev, ret, "ASoC: Failed to request %s\n",
+ w->name);
+ kfree_const(w->name);
+name_failed:
kfree_const(w->sname);
kfree(w);
+cnew_failed:
return ERR_PTR(ret);
}
@@ -3844,6 +3841,15 @@ snd_soc_dai_link_event_pre_pmu(struct snd_soc_dapm_widget *w,
unsigned int fmt;
int ret = 0;
+ /*
+ * NOTE
+ *
+ * snd_pcm_hw_params is quite large (608 bytes on arm64) and is
+ * starting to get a bit excessive for allocation on the stack,
+ * especially when you're building with some of the KASAN type
+ * stuff that increases stack usage.
+ * So, we use kzalloc()/kfree() for params in this function.
+ */
params = kzalloc(sizeof(*params), GFP_KERNEL);
if (!params)
return -ENOMEM;
@@ -3886,23 +3892,22 @@ snd_soc_dai_link_event_pre_pmu(struct snd_soc_dapm_widget *w,
* necessary
*/
config = rtd->dai_link->params + rtd->params_select;
- if (WARN_ON(!config)) {
+ if (!config) {
dev_err(w->dapm->dev, "ASoC: link config missing\n");
ret = -EINVAL;
goto out;
}
/* Be a little careful as we don't want to overflow the mask array */
- if (config->formats) {
- fmt = ffs(config->formats) - 1;
- } else {
- dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n",
- config->formats);
+ if (!config->formats) {
+ dev_warn(w->dapm->dev, "ASoC: Invalid format was specified\n");
ret = -EINVAL;
goto out;
}
+ fmt = ffs(config->formats) - 1;
+
snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt);
hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min =
config->rate_min;
@@ -3941,7 +3946,9 @@ snd_soc_dai_link_event_pre_pmu(struct snd_soc_dapm_widget *w,
runtime->rate = params_rate(params);
out:
+ /* see above NOTE */
kfree(params);
+
return ret;
}
@@ -4354,6 +4361,7 @@ static void dapm_connect_dai_pair(struct snd_soc_card *card,
struct snd_soc_dapm_widget *dai, *codec, *playback_cpu, *capture_cpu;
struct snd_pcm_substream *substream;
struct snd_pcm_str *streams = rtd->pcm->streams;
+ int stream;
if (dai_link->params) {
playback_cpu = cpu_dai->capture_widget;
@@ -4364,37 +4372,39 @@ static void dapm_connect_dai_pair(struct snd_soc_card *card,
}
/* connect BE DAI playback if widgets are valid */
+ stream = SNDRV_PCM_STREAM_PLAYBACK;
codec = codec_dai->playback_widget;
if (playback_cpu && codec) {
- if (dai_link->params && !rtd->playback_widget) {
- substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+ if (dai_link->params && !rtd->c2c_widget[stream]) {
+ substream = streams[stream].substream;
dai = snd_soc_dapm_new_dai(card, substream, "playback");
if (IS_ERR(dai))
goto capture;
- rtd->playback_widget = dai;
+ rtd->c2c_widget[stream] = dai;
}
dapm_connect_dai_routes(&card->dapm, cpu_dai, playback_cpu,
- rtd->playback_widget,
+ rtd->c2c_widget[stream],
codec_dai, codec);
}
capture:
/* connect BE DAI capture if widgets are valid */
+ stream = SNDRV_PCM_STREAM_CAPTURE;
codec = codec_dai->capture_widget;
if (codec && capture_cpu) {
- if (dai_link->params && !rtd->capture_widget) {
- substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream;
+ if (dai_link->params && !rtd->c2c_widget[stream]) {
+ substream = streams[stream].substream;
dai = snd_soc_dapm_new_dai(card, substream, "capture");
if (IS_ERR(dai))
return;
- rtd->capture_widget = dai;
+ rtd->c2c_widget[stream] = dai;
}
dapm_connect_dai_routes(&card->dapm, codec_dai, codec,
- rtd->capture_widget,
+ rtd->c2c_widget[stream],
cpu_dai, capture_cpu);
}
}
@@ -4452,11 +4462,11 @@ void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
if (rtd->dai_link->dynamic)
continue;
- if (rtd->num_cpus == 1) {
+ if (rtd->dai_link->num_cpus == 1) {
for_each_rtd_codec_dais(rtd, i, codec_dai)
dapm_connect_dai_pair(card, rtd, codec_dai,
asoc_rtd_to_cpu(rtd, 0));
- } else if (rtd->num_codecs == rtd->num_cpus) {
+ } else if (rtd->dai_link->num_codecs == rtd->dai_link->num_cpus) {
for_each_rtd_codec_dais(rtd, i, codec_dai)
dapm_connect_dai_pair(card, rtd, codec_dai,
asoc_rtd_to_cpu(rtd, i));
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-20 09:04:57 +0300