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mfd: Enable rbtree cache for wm831x devices 

Most useful with the regulators where we're doing a lot of read/modify/write
updates in potentially performance critical paths.  Providing some defaults
would make this slightly better but this is a win right now.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
hifive-unleashed-5.1
Mark Brown 2011-10-09 13:38:06 +01:00
parent de2d808f4d
commit 7cccbdc844
1 changed files with 2 additions and 0 deletions
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drivers/mfd/wm831x-core.c
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@ -1602,6 +1602,8 @@ struct regmap_config wm831x_regmap_config = {
.reg_bits = 16,
.val_bits = 16,
.cache_type = REGCACHE_RBTREE,
.max_register = WM831X_DBE_CHECK_DATA,
.readable_reg = wm831x_reg_readable,
.writeable_reg = wm831x_reg_writeable,