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-rw-r--r--include/sound/soc.h1
-rw-r--r--sound/soc/soc-cache.c36
2 files changed, 25 insertions, 12 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index d244f90..c184f84 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -488,6 +488,7 @@ struct snd_soc_codec {
/* runtime */
struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
unsigned int active;
+ unsigned int cache_bypass:1; /* Suppress access to the cache */
unsigned int cache_only:1; /* Suppress writes to hardware */
unsigned int cache_sync:1; /* Cache needs to be synced to hardware */
unsigned int suspended:1; /* Codec is in suspend PM state */
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index d97a59f..1ebff9f 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -25,7 +25,8 @@ static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
- snd_soc_codec_volatile_register(codec, reg)) {
+ snd_soc_codec_volatile_register(codec, reg) ||
+ codec->cache_bypass) {
if (codec->cache_only)
return -1;
@@ -49,7 +50,8 @@ static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg,
data[1] = value & 0x00ff;
if (!snd_soc_codec_volatile_register(codec, reg) &&
- reg < codec->driver->reg_cache_size) {
+ reg < codec->driver->reg_cache_size &&
+ !codec->cache_bypass) {
ret = snd_soc_cache_write(codec, reg, value);
if (ret < 0)
return -1;
@@ -106,7 +108,8 @@ static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec,
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
- snd_soc_codec_volatile_register(codec, reg)) {
+ snd_soc_codec_volatile_register(codec, reg) ||
+ codec->cache_bypass) {
if (codec->cache_only)
return -1;
@@ -130,7 +133,8 @@ static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
data[1] = value & 0x00ff;
if (!snd_soc_codec_volatile_register(codec, reg) &&
- reg < codec->driver->reg_cache_size) {
+ reg < codec->driver->reg_cache_size &&
+ !codec->cache_bypass) {
ret = snd_soc_cache_write(codec, reg, value);
if (ret < 0)
return -1;
@@ -191,7 +195,8 @@ static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg,
data[1] = value & 0xff;
if (!snd_soc_codec_volatile_register(codec, reg) &&
- reg < codec->driver->reg_cache_size) {
+ reg < codec->driver->reg_cache_size &&
+ !codec->cache_bypass) {
ret = snd_soc_cache_write(codec, reg, value);
if (ret < 0)
return -1;
@@ -216,7 +221,8 @@ static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec,
reg &= 0xff;
if (reg >= codec->driver->reg_cache_size ||
- snd_soc_codec_volatile_register(codec, reg)) {
+ snd_soc_codec_volatile_register(codec, reg) ||
+ codec->cache_bypass) {
if (codec->cache_only)
return -1;
@@ -271,7 +277,8 @@ static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
data[2] = value & 0xff;
if (!snd_soc_codec_volatile_register(codec, reg) &&
- reg < codec->driver->reg_cache_size) {
+ reg < codec->driver->reg_cache_size &&
+ !codec->cache_bypass) {
ret = snd_soc_cache_write(codec, reg, value);
if (ret < 0)
return -1;
@@ -295,7 +302,8 @@ static unsigned int snd_soc_8_16_read(struct snd_soc_codec *codec,
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
- snd_soc_codec_volatile_register(codec, reg)) {
+ snd_soc_codec_volatile_register(codec, reg) ||
+ codec->cache_bypass) {
if (codec->cache_only)
return -1;
@@ -450,7 +458,8 @@ static unsigned int snd_soc_16_8_read(struct snd_soc_codec *codec,
reg &= 0xff;
if (reg >= codec->driver->reg_cache_size ||
- snd_soc_codec_volatile_register(codec, reg)) {
+ snd_soc_codec_volatile_register(codec, reg) ||
+ codec->cache_bypass) {
if (codec->cache_only)
return -1;
@@ -476,7 +485,8 @@ static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg,
reg &= 0xff;
if (!snd_soc_codec_volatile_register(codec, reg) &&
- reg < codec->driver->reg_cache_size) {
+ reg < codec->driver->reg_cache_size &&
+ !codec->cache_bypass) {
ret = snd_soc_cache_write(codec, reg, value);
if (ret < 0)
return -1;
@@ -568,7 +578,8 @@ static unsigned int snd_soc_16_16_read(struct snd_soc_codec *codec,
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
- snd_soc_codec_volatile_register(codec, reg)) {
+ snd_soc_codec_volatile_register(codec, reg) ||
+ codec->cache_bypass) {
if (codec->cache_only)
return -1;
@@ -595,7 +606,8 @@ static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg,
data[3] = value & 0xff;
if (!snd_soc_codec_volatile_register(codec, reg) &&
- reg < codec->driver->reg_cache_size) {
+ reg < codec->driver->reg_cache_size &&
+ !codec->cache_bypass) {
ret = snd_soc_cache_write(codec, reg, value);
if (ret < 0)
return -1;
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