Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 34a730aa authored by Jonas Gorski's avatar Jonas Gorski Committed by Mark Brown
Browse files

regmap: make LZO cache optional 



Commit 2cbbb579 ("regmap: Add the LZO cache support") added support
for LZO compression in regcache, but there were never any users added
afterwards. Since LZO support itself has its own size, it currently is
rather a deoptimization.

So make it optional by introducing a symbol that can be selected by
drivers wanting to make use of it.

Saves e.g. ~46 kB on MIPS (size of LZO support + regcache LZO code).

Signed-off-by: default avatarJonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2ea659a9

drivers/base/regmap/Kconfig

+4 −1
Original line number Diff line number Diff line
@@ -4,9 +4,12 @@ 


config REGMAP

	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)

	select IRQ_DOMAIN if REGMAP_IRQ

	bool



config REGCACHE_COMPRESSED

	select LZO_COMPRESS

	select LZO_DECOMPRESS

	select IRQ_DOMAIN if REGMAP_IRQ

	bool



config REGMAP_AC97

drivers/base/regmap/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -2,7 +2,8 @@ 
CFLAGS_regmap.o := -I$(src)



obj-$(CONFIG_REGMAP) += regmap.o regcache.o

obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o regcache-flat.o

obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o

obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o

obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o

obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o

obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o

drivers/base/regmap/regcache.c

+2 −0
Original line number Diff line number Diff line
@@ -21,7 +21,9 @@ 


static const struct regcache_ops *cache_types[] = {

	&regcache_rbtree_ops,

#if IS_ENABLED(CONFIG_REGCHACHE_COMPRESSED)

	&regcache_lzo_ops,

#endif

	&regcache_flat_ops,

};