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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Gustaw Lewandowski <gustaw.lewandowski@intel.com>
Date: Tue, 30 Oct 2018 14:46:08 +0100
Subject: [PATCH] Revert "ASoC: tdf8532: add crit sections"
Reverted patch introduces memory leak in tdf8532_resume and causes other
problems with audio functionality.
Change-Id: I186554e03c6ccfde90bedc5ee31ad5c670b7c079
Tracked-On: OAM-71677
Signed-off-by: Gustaw Lewandowski <gustaw.lewandowski@intel.com>
---
sound/soc/codecs/tdf8532.c | 93 ++++++++++++++++----------------------
sound/soc/codecs/tdf8532.h | 1 -
2 files changed, 39 insertions(+), 55 deletions(-)
diff --git a/sound/soc/codecs/tdf8532.c b/sound/soc/codecs/tdf8532.c
index 9fc73b6..02e63f9 100644
--- a/sound/soc/codecs/tdf8532.c
+++ b/sound/soc/codecs/tdf8532.c
@@ -21,11 +21,8 @@
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/pcm_params.h>
-#include <linux/mutex.h>
#include "tdf8532.h"
-static DEFINE_MUTEX(tdf8532_lock);
-
static int __tdf8532_build_pkt(struct tdf8532_priv *dev_data,
va_list valist, u8 *payload)
{
@@ -213,12 +210,11 @@ static int tdf8532_wait_state(struct tdf8532_priv *dev_data, u8 req_state,
static int tdf8532_start_play(struct tdf8532_priv *tdf8532)
{
- int ret = 0;
+ int ret;
- mutex_lock(&tdf8532_lock);
ret = tdf8532_amp_write(tdf8532, SET_CLK_STATE, CLK_CONNECT);
if (ret < 0)
- goto out;
+ return ret;
ret = tdf8532_amp_write(tdf8532, SET_CHNL_ENABLE,
CHNL_MASK(tdf8532->channels));
@@ -226,22 +222,22 @@ static int tdf8532_start_play(struct tdf8532_priv *tdf8532)
if (ret >= 0)
ret = tdf8532_wait_state(tdf8532, STATE_PLAY, ACK_TIMEOUT);
-out:
- if (ret >= 0)
- tdf8532->powered = 1;
- mutex_unlock(&tdf8532_lock);
return ret;
}
+
static int tdf8532_stop_play(struct tdf8532_priv *tdf8532)
{
- int ret = 0;
+ int ret;
+
ret = tdf8532_amp_write(tdf8532, SET_CHNL_DISABLE,
CHNL_MASK(tdf8532->channels));
if (ret < 0)
goto out;
- tdf8532_wait_state(tdf8532, STATE_STBY, ACK_TIMEOUT);
+ ret = tdf8532_wait_state(tdf8532, STATE_STBY, ACK_TIMEOUT);
+ if (ret < 0)
+ goto out;
ret = tdf8532_amp_write(tdf8532, SET_CLK_STATE, CLK_DISCONNECT);
if (ret < 0)
@@ -253,17 +249,30 @@ static int tdf8532_stop_play(struct tdf8532_priv *tdf8532)
return ret;
}
-static int tdf8532_dai_trigger_pb(struct snd_pcm_substream *substream, int cmd,
+
+static int tdf8532_dai_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
int ret = 0;
struct snd_soc_component *component = dai->component;
struct tdf8532_priv *tdf8532 = snd_soc_component_get_drvdata(component);
- dev_dbg(component->dev, "%s: cmd:%d substream:%d\n", __func__, cmd,
- substream->stream);
- if (cmd == SNDRV_PCM_TRIGGER_START && !tdf8532->powered)
+ dev_dbg(component->dev, "%s: cmd = %d\n", __func__, cmd);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
ret = tdf8532_start_play(tdf8532);
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_STOP:
+ /* WA on unexpected codec down during S3
+ SNDRV_PCM_TRIGGER_STOP fails so skip set ret */
+ tdf8532_stop_play(tdf8532);
+ break;
+ }
return ret;
}
@@ -272,48 +281,25 @@ static int tdf8532_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_component *component = dai->component;
struct tdf8532_priv *tdf8532 = snd_soc_component_get_drvdata(component);
- int ret;
-
- dev_dbg(component->dev, "%s mute:%d\n", __func__, mute);
- mutex_lock(&tdf8532_lock);
- ret = tdf8532_amp_write(tdf8532, (mute)?SET_CHNL_MUTE:SET_CHNL_UNMUTE,
- CHNL_MASK(CHNL_MAX));
- mutex_unlock(&tdf8532_lock);
- return ret;
-}
-
-static const struct snd_soc_dai_ops tdf8532_dai_ops_pb = {
- .trigger = tdf8532_dai_trigger_pb,
- .digital_mute = tdf8532_mute,
-};
-
-static int tdf8532_resume(struct snd_soc_component *component)
-{
- int ret;
- struct tdf8532_priv *tdf8532 = snd_soc_component_get_drvdata(component);
- u8 cur_state = STATE_NONE;
- struct get_dev_status_repl *status_repl = NULL;
dev_dbg(component->dev, "%s\n", __func__);
- mutex_lock(&tdf8532_lock);
- ret = tdf8532_get_state(tdf8532, &status_repl);
- mutex_unlock(&tdf8532_lock);
- if (ret < 0)
- goto out;
- cur_state = status_repl->state;
- dev_dbg(component->dev, "%s cur_state:%d\n", __func__, cur_state);
- if (cur_state < STATE_PLAY)
- tdf8532_start_play(tdf8532);
-out:
- return 0;
+ if (mute)
+ return tdf8532_amp_write(tdf8532, SET_CHNL_MUTE,
+ CHNL_MASK(CHNL_MAX));
+ else
+ return tdf8532_amp_write(tdf8532, SET_CHNL_UNMUTE,
+ CHNL_MASK(CHNL_MAX));
}
-static const struct snd_soc_component_driver soc_component_tdf8532 = {
- .resume = tdf8532_resume,
+static const struct snd_soc_dai_ops tdf8532_dai_ops = {
+ .trigger = tdf8532_dai_trigger,
+ .digital_mute = tdf8532_mute,
};
-static struct snd_soc_dai_driver tdf8532_dai_pb[] = {
+static struct snd_soc_component_driver soc_component_tdf8532;
+
+static struct snd_soc_dai_driver tdf8532_dai[] = {
{
.name = "tdf8532-hifi",
.playback = {
@@ -323,7 +309,7 @@ static struct snd_soc_dai_driver tdf8532_dai_pb[] = {
.rates = SNDRV_PCM_RATE_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
- .ops = &tdf8532_dai_ops_pb,
+ .ops = &tdf8532_dai_ops,
}
};
@@ -346,12 +332,11 @@ static int tdf8532_i2c_probe(struct i2c_client *i2c,
dev_data->i2c = i2c;
dev_data->pkt_id = 0;
dev_data->channels = 4;
- dev_data->powered = 0;
i2c_set_clientdata(i2c, dev_data);
ret = devm_snd_soc_register_component(&i2c->dev, &soc_component_tdf8532,
- tdf8532_dai_pb, ARRAY_SIZE(tdf8532_dai_pb));
+ tdf8532_dai, ARRAY_SIZE(tdf8532_dai));
if (ret != 0) {
dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
goto out;
diff --git a/sound/soc/codecs/tdf8532.h b/sound/soc/codecs/tdf8532.h
index 0f35407..39353a0 100644
--- a/sound/soc/codecs/tdf8532.h
+++ b/sound/soc/codecs/tdf8532.h
@@ -96,7 +96,6 @@ struct tdf8532_priv {
struct i2c_client *i2c;
u8 channels;
u8 pkt_id;
- u8 powered:1;
};
#endif
--
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