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yaml
---
r: 216577
b: refs/heads/master
c: db49c14
h: refs/heads/master
i:
  216575: c6c1946
v: v3
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Dimitris Papastamos authored and Mark Brown committed Sep 23, 2010
1 parent d9f75f0 commit 037bc55
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Showing 2 changed files with 51 additions and 27 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 3e13f65e3aa51fc7009afc554683a0b182c057f5
refs/heads/master: db49c146a8c0e8d49c0ff029c2496d47660dfb28
76 changes: 50 additions & 26 deletions trunk/sound/soc/soc-cache.c
Original file line number Diff line number Diff line change
Expand Up @@ -19,8 +19,15 @@ static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,
unsigned int reg)
{
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];
}

Expand All @@ -31,13 +38,12 @@ static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg,
u8 data[2];
int ret;

BUG_ON(codec->driver->volatile_register);

data[0] = (reg << 4) | ((value >> 8) & 0x000f);
data[1] = value & 0x00ff;

if (reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (!snd_soc_codec_volatile_register(codec, reg) &&
reg < codec->driver->reg_cache_size)
cache[reg] = value;

if (codec->cache_only) {
codec->cache_sync = 1;
Expand Down Expand Up @@ -89,8 +95,15 @@ static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec,
unsigned int reg)
{
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];
}

Expand All @@ -101,13 +114,12 @@ static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
u8 data[2];
int ret;

BUG_ON(codec->driver->volatile_register);

data[0] = (reg << 1) | ((value >> 8) & 0x0001);
data[1] = value & 0x00ff;

if (reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (!snd_soc_codec_volatile_register(codec, reg) &&
reg < codec->driver->reg_cache_size)
cache[reg] = value;

if (codec->cache_only) {
codec->cache_sync = 1;
Expand Down Expand Up @@ -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 data[2];

BUG_ON(codec->driver->volatile_register);

reg &= 0xff;
data[0] = reg;
data[1] = value & 0xff;

if (reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (!snd_soc_codec_volatile_register(codec, value) &&
reg < codec->driver->reg_cache_size)
cache[reg] = value;

if (codec->cache_only) {
codec->cache_sync = 1;
Expand All @@ -187,9 +198,16 @@ static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec,
unsigned int reg)
{
u8 *cache = codec->reg_cache;

reg &= 0xff;
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];
}

Expand Down Expand Up @@ -344,8 +362,14 @@ static unsigned int snd_soc_16_8_read(struct snd_soc_codec *codec,
u8 *cache = codec->reg_cache;

reg &= 0xff;
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];
}

Expand All @@ -356,15 +380,14 @@ static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg,
u8 data[3];
int ret;

BUG_ON(codec->driver->volatile_register);

data[0] = (reg >> 8) & 0xff;
data[1] = reg & 0xff;
data[2] = value;

reg &= 0xff;
if (reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (!snd_soc_codec_volatile_register(codec, reg) &&
reg < codec->driver->reg_cache_size)
cache[reg] = value;

if (codec->cache_only) {
codec->cache_sync = 1;
Expand Down Expand Up @@ -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[3] = value & 0xff;

if (reg < codec->driver->reg_cache_size)
cache[reg] = value;
if (!snd_soc_codec_volatile_register(codec, reg) &&
reg < codec->driver->reg_cache_size)
cache[reg] = value;

if (codec->cache_only) {
codec->cache_sync = 1;
Expand Down

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