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authorMark Brown <broonie@linaro.org>2013-06-26 15:45:59 +0400
committerMark Brown <broonie@linaro.org>2013-06-27 12:48:42 +0400
commitb047e1cce8fe32475ab61846772943a5e4c0a908 (patch)
tree9d04d8101d161b96f96c2e2e5bd03900011828ec /sound/soc/codecs/stac9766.c
parentb49dff8cb61cd4715991612e2eb6905b73a0be78 (diff)
downloadlinux-b047e1cce8fe32475ab61846772943a5e4c0a908.tar.xz
ASoC: ac97: Support multi-platform AC'97
Currently we can only have a single platform built in with AC'97 support due to the use of a global variable to provide the bus operations. Fix this by making that variable a pointer and having the bus drivers set the operations prior to registering. This is not a particularly good or nice approach but it avoids blocking multiplatform and a real fix involves fixing the fairly deep problems with AC'97 support - we should be converting it to a real bus. Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/stac9766.c')
-rw-r--r--sound/soc/codecs/stac9766.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/sound/soc/codecs/stac9766.c b/sound/soc/codecs/stac9766.c
index cbc7ae322324..a5455c1aea42 100644
--- a/sound/soc/codecs/stac9766.c
+++ b/sound/soc/codecs/stac9766.c
@@ -143,14 +143,14 @@ static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
if (reg > AC97_STAC_PAGE0) {
stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
- soc_ac97_ops.write(codec->ac97, reg, val);
+ soc_ac97_ops->write(codec->ac97, reg, val);
stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
return 0;
}
if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
return -EIO;
- soc_ac97_ops.write(codec->ac97, reg, val);
+ soc_ac97_ops->write(codec->ac97, reg, val);
cache[reg / 2] = val;
return 0;
}
@@ -162,7 +162,7 @@ static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
if (reg > AC97_STAC_PAGE0) {
stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
- val = soc_ac97_ops.read(codec->ac97, reg - AC97_STAC_PAGE0);
+ val = soc_ac97_ops->read(codec->ac97, reg - AC97_STAC_PAGE0);
stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
return val;
}
@@ -173,7 +173,7 @@ static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
reg == AC97_VENDOR_ID2) {
- val = soc_ac97_ops.read(codec->ac97, reg);
+ val = soc_ac97_ops->read(codec->ac97, reg);
return val;
}
return cache[reg / 2];
@@ -240,15 +240,15 @@ static int stac9766_set_bias_level(struct snd_soc_codec *codec,
static int stac9766_reset(struct snd_soc_codec *codec, int try_warm)
{
- if (try_warm && soc_ac97_ops.warm_reset) {
- soc_ac97_ops.warm_reset(codec->ac97);
+ if (try_warm && soc_ac97_ops->warm_reset) {
+ soc_ac97_ops->warm_reset(codec->ac97);
if (stac9766_ac97_read(codec, 0) == stac9766_reg[0])
return 1;
}
- soc_ac97_ops.reset(codec->ac97);
- if (soc_ac97_ops.warm_reset)
- soc_ac97_ops.warm_reset(codec->ac97);
+ soc_ac97_ops->reset(codec->ac97);
+ if (soc_ac97_ops->warm_reset)
+ soc_ac97_ops->warm_reset(codec->ac97);
if (stac9766_ac97_read(codec, 0) != stac9766_reg[0])
return -EIO;
return 0;
@@ -272,7 +272,7 @@ reset:
return -EIO;
}
codec->ac97->bus->ops->warm_reset(codec->ac97);
- id = soc_ac97_ops.read(codec->ac97, AC97_VENDOR_ID2);
+ id = soc_ac97_ops->read(codec->ac97, AC97_VENDOR_ID2);
if (id != 0x4c13) {
stac9766_reset(codec, 0);
reset++;
@@ -336,7 +336,7 @@ static int stac9766_codec_probe(struct snd_soc_codec *codec)
{
int ret = 0;
- ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
+ ret = snd_soc_new_ac97_codec(codec, soc_ac97_ops, 0);
if (ret < 0)
goto codec_err;