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ASoC: soc-cache: Warn on syncing any non-writable registers

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When syncing the cache, if the driver has given us a writable_register()
callback, use it to check if we are syncing a non-writable register
and if so warn the user.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Dimitris Papastamos 2011-03-28 11:39:15 +01:00 committed by Mark Brown
parent fbda18245b
commit f20eda5d8f
1 changed files with 6 additions and 0 deletions
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6
sound/soc/soc-cache.c
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@ -661,6 +661,8 @@ static int snd_soc_rbtree_cache_sync(struct snd_soc_codec *codec)
rbnode = rb_entry(node, struct snd_soc_rbtree_node, node);
if (rbnode->value == rbnode->defval)
continue;
WARN_ON(codec->writable_register &&
codec->writable_register(codec, rbnode->reg));
ret = snd_soc_cache_read(codec, rbnode->reg, &val);
if (ret)
return ret;
@ -921,6 +923,8 @@ static int snd_soc_lzo_cache_sync(struct snd_soc_codec *codec)
lzo_blocks = codec->reg_cache;
for_each_set_bit(i, lzo_blocks[0]->sync_bmp, lzo_blocks[0]->sync_bmp_nbits) {
WARN_ON(codec->writable_register &&
codec->writable_register(codec, i));
ret = snd_soc_cache_read(codec, i, &val);
if (ret)
return ret;
@ -1179,6 +1183,8 @@ static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
codec_drv = codec->driver;
for (i = 0; i < codec_drv->reg_cache_size; ++i) {
WARN_ON(codec->writable_register &&
codec->writable_register(codec, i));
ret = snd_soc_cache_read(codec, i, &val);
if (ret)
return ret;