The WM8994 and WM8958 register map is relatively sparse so benefits from compression. The rbtree compression gives better results than LZO for both memory and CPU consumption on a map as sparse as this.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/codecs/wm8994.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index d9c6dd5..5f203c5 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -3033,6 +3033,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8994 = { .reg_cache_size = WM8994_CACHE_SIZE, .reg_cache_default = wm8994_reg_defaults, .reg_word_size = 2, + .compress_type = SND_SOC_RBTREE_COMPRESSION, };
static int __devinit wm8994_probe(struct platform_device *pdev)