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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-09 16:38:06 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-18 02:03:32 +0400
commit7cccbdc84487616c3dbe493b04bfa1f362f4bc56 (patch)
treebc75c0f7496cbcb8b82a501e4474b880ae6e69ad /drivers/mfd/wm831x-core.c
parentde2d808f4de091321978d05a85ef0819e8f3561a (diff)
downloadlinux-7cccbdc84487616c3dbe493b04bfa1f362f4bc56.tar.xz
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>
Diffstat (limited to 'drivers/mfd/wm831x-core.c')
-rw-r--r--drivers/mfd/wm831x-core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index e758c89ac5bb..0a2b8d41a702 100644
--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -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,