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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-12-21 17:19:56 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-12-21 23:17:18 +0000
commit68d44ee0bc70be30ea1ee936e6e21082193386cf (patch)
treef3b71694f3d9a6bf6a74b5ef3d3c0b6192c6287f /sound/soc/Kconfig
parentbe4fcddd17f01ede0ff46cf86c5ab8c5adb37175 (diff)
downloadlinux-stericsson-68d44ee0bc70be30ea1ee936e6e21082193386cf.tar.gz
ASoC: Make LZO cache compression optional
Make LZO cache compression optional as it pulls in the kernel wide LZO implementation and rbtree compression is generally more efficient for typical register maps, especially in terms of CPU performance. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/Kconfig')
-rw-r--r--sound/soc/Kconfig17
1 files changed, 15 insertions, 2 deletions
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index 21a5465ceb65..a3efc52a34da 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -4,8 +4,6 @@
menuconfig SND_SOC
tristate "ALSA for SoC audio support"
- select LZO_COMPRESS
- select LZO_DECOMPRESS
select SND_PCM
select AC97_BUS if SND_SOC_AC97_BUS
select SND_JACK if INPUT=y || INPUT=SND
@@ -22,6 +20,21 @@ menuconfig SND_SOC
if SND_SOC
+config SND_SOC_CACHE_LZO
+ bool "Support LZO compression for register caches"
+ select LZO_COMPRESS
+ select LZO_DECOMPRESS
+ ---help---
+ Select this to enable LZO compression for register caches.
+ This will allow machine or CODEC drivers to compress register
+ caches in memory, reducing the memory consumption at the
+ expense of performance. If this is not present and is used
+ the system will fall back to uncompressed caches.
+
+ Usually it is safe to disable this option, where cache
+ compression in used the rbtree option will typically perform
+ better.
+
config SND_SOC_AC97_BUS
bool