Commit db49c146 authored by Dimitris Papastamos's avatar Dimitris Papastamos Committed by Mark Brown

ASoC: Delegate to hw specific read for volatile registers

Ensure that reads on volatile registers will correctly delegate
to the bus specific read function.
Signed-off-by: default avatarDimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 3e13f65e
...@@ -19,8 +19,15 @@ static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec, ...@@ -19,8 +19,15 @@ static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
u16 *cache = codec->reg_cache; u16 *cache = codec->reg_cache;
if (reg >= codec->driver->reg_cache_size)
return -1; if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg)) {
if (codec->cache_only)
return -1;
return codec->hw_read(codec, reg);
}
return cache[reg]; return cache[reg];
} }
...@@ -31,13 +38,12 @@ static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg, ...@@ -31,13 +38,12 @@ static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg,
u8 data[2]; u8 data[2];
int ret; int ret;
BUG_ON(codec->driver->volatile_register);
data[0] = (reg << 4) | ((value >> 8) & 0x000f); data[0] = (reg << 4) | ((value >> 8) & 0x000f);
data[1] = value & 0x00ff; data[1] = value & 0x00ff;
if (reg < codec->driver->reg_cache_size) if (!snd_soc_codec_volatile_register(codec, reg) &&
cache[reg] = value; reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (codec->cache_only) { if (codec->cache_only) {
codec->cache_sync = 1; codec->cache_sync = 1;
...@@ -89,8 +95,15 @@ static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec, ...@@ -89,8 +95,15 @@ static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
u16 *cache = codec->reg_cache; u16 *cache = codec->reg_cache;
if (reg >= codec->driver->reg_cache_size)
return -1; if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg)) {
if (codec->cache_only)
return -1;
return codec->hw_read(codec, reg);
}
return cache[reg]; return cache[reg];
} }
...@@ -101,13 +114,12 @@ static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg, ...@@ -101,13 +114,12 @@ static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
u8 data[2]; u8 data[2];
int ret; int ret;
BUG_ON(codec->driver->volatile_register);
data[0] = (reg << 1) | ((value >> 8) & 0x0001); data[0] = (reg << 1) | ((value >> 8) & 0x0001);
data[1] = value & 0x00ff; data[1] = value & 0x00ff;
if (reg < codec->driver->reg_cache_size) if (!snd_soc_codec_volatile_register(codec, reg) &&
cache[reg] = value; reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (codec->cache_only) { if (codec->cache_only) {
codec->cache_sync = 1; codec->cache_sync = 1;
...@@ -161,14 +173,13 @@ static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg, ...@@ -161,14 +173,13 @@ static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg,
u8 *cache = codec->reg_cache; u8 *cache = codec->reg_cache;
u8 data[2]; u8 data[2];
BUG_ON(codec->driver->volatile_register);
reg &= 0xff; reg &= 0xff;
data[0] = reg; data[0] = reg;
data[1] = value & 0xff; data[1] = value & 0xff;
if (reg < codec->driver->reg_cache_size) if (!snd_soc_codec_volatile_register(codec, value) &&
cache[reg] = value; reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (codec->cache_only) { if (codec->cache_only) {
codec->cache_sync = 1; codec->cache_sync = 1;
...@@ -187,9 +198,16 @@ static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec, ...@@ -187,9 +198,16 @@ static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
u8 *cache = codec->reg_cache; u8 *cache = codec->reg_cache;
reg &= 0xff; reg &= 0xff;
if (reg >= codec->driver->reg_cache_size) if (reg >= codec->driver->reg_cache_size ||
return -1; snd_soc_codec_volatile_register(codec, reg)) {
if (codec->cache_only)
return -1;
return codec->hw_read(codec, reg);
}
return cache[reg]; return cache[reg];
} }
...@@ -344,8 +362,14 @@ static unsigned int snd_soc_16_8_read(struct snd_soc_codec *codec, ...@@ -344,8 +362,14 @@ static unsigned int snd_soc_16_8_read(struct snd_soc_codec *codec,
u8 *cache = codec->reg_cache; u8 *cache = codec->reg_cache;
reg &= 0xff; reg &= 0xff;
if (reg >= codec->driver->reg_cache_size) if (reg >= codec->driver->reg_cache_size ||
return -1; snd_soc_codec_volatile_register(codec, reg)) {
if (codec->cache_only)
return -1;
return codec->hw_read(codec, reg);
}
return cache[reg]; return cache[reg];
} }
...@@ -356,15 +380,14 @@ static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg, ...@@ -356,15 +380,14 @@ static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg,
u8 data[3]; u8 data[3];
int ret; int ret;
BUG_ON(codec->driver->volatile_register);
data[0] = (reg >> 8) & 0xff; data[0] = (reg >> 8) & 0xff;
data[1] = reg & 0xff; data[1] = reg & 0xff;
data[2] = value; data[2] = value;
reg &= 0xff; reg &= 0xff;
if (reg < codec->driver->reg_cache_size) if (!snd_soc_codec_volatile_register(codec, reg) &&
cache[reg] = value; reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (codec->cache_only) { if (codec->cache_only) {
codec->cache_sync = 1; codec->cache_sync = 1;
...@@ -475,8 +498,9 @@ static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg, ...@@ -475,8 +498,9 @@ static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg,
data[2] = (value >> 8) & 0xff; data[2] = (value >> 8) & 0xff;
data[3] = value & 0xff; data[3] = value & 0xff;
if (reg < codec->driver->reg_cache_size) if (!snd_soc_codec_volatile_register(codec, reg) &&
cache[reg] = value; reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (codec->cache_only) { if (codec->cache_only) {
codec->cache_sync = 1; codec->cache_sync = 1;
......
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