[alsa-devel] [PATCH] ASoC: soc-cache: Ensure flat compression uses a copy of the defaults cache
Dimitris Papastamos
dp at opensource.wolfsonmicro.com
Wed Jan 12 11:22:28 CET 2011
With the addition of the cache fallback functionality, it is necessary
to ensure that if the register defaults cache was marked as __devinitconst
and the LZO compression is not compiled in the kernel, the fallback to
flat compression will still use a copy of the defaults cache.
Signed-off-by: Dimitris Papastamos <dp at opensource.wolfsonmicro.com>
---
sound/soc/soc-cache.c | 16 ++++------------
1 files changed, 4 insertions(+), 12 deletions(-)
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index b0d86cc..2f1d596 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -1400,8 +1400,8 @@ static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
ret = snd_soc_cache_read(codec, i, &val);
if (ret)
return ret;
- if (codec_drv->reg_cache_default)
- if (snd_soc_get_cache_val(codec_drv->reg_cache_default,
+ if (codec->reg_def_copy)
+ if (snd_soc_get_cache_val(codec->reg_def_copy,
i, codec_drv->reg_word_size) == val)
continue;
ret = snd_soc_write(codec, i, val);
@@ -1446,16 +1446,8 @@ static int snd_soc_flat_cache_init(struct snd_soc_codec *codec)
codec_drv = codec->driver;
reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
- /*
- * for flat compression, we don't need to keep a copy of the
- * original defaults register cache as it will definitely not
- * be marked as __devinitconst
- */
- kfree(codec->reg_def_copy);
- codec->reg_def_copy = NULL;
-
- if (codec_drv->reg_cache_default)
- codec->reg_cache = kmemdup(codec_drv->reg_cache_default,
+ if (codec->reg_def_copy)
+ codec->reg_cache = kmemdup(codec->reg_def_copy,
reg_size, GFP_KERNEL);
else
codec->reg_cache = kzalloc(reg_size, GFP_KERNEL);
--
1.7.3.5
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