diff options
| author | Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | 2011-03-28 14:39:15 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-03-31 01:21:29 +0400 |
| commit | f20eda5d8fafe35ca3c63ec8149a700a7db228a5 (patch) | |
| tree | cf300d095ab70d3b5b897fc5581bd3b057a55837 /sound/soc/soc-cache.c | |
| parent | fbda18245beff52ec1edf096e7a77d4cdf3effb9 (diff) | |
| download | linux-f20eda5d8fafe35ca3c63ec8149a700a7db228a5.tar.xz | |
ASoC: soc-cache: Warn on syncing any non-writable registers
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>
Diffstat (limited to 'sound/soc/soc-cache.c')
| -rw-r--r-- | sound/soc/soc-cache.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c index 22c0b95fb007..22b099076223 100644 --- a/sound/soc/soc-cache.c +++ b/sound/soc/soc-cache.c @@ -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; |