From: Matt Ranostay <mranostay@gmail.com>
Date: Sun, 14 Feb 2016 01:20:42 +0000 (-0800)
Subject: iio: chemical: atlas-ph-sensor: switch regmap cache
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0d43b3468871f5d5194edfe7052b6a49691eb6fd;p=linux.git
iio: chemical: atlas-ph-sensor: switch regmap cache
switch from using REGCACHE_FLAT to REGCACHE_RBTREE so initial hw values
are read from device. This also allows some volatile ranges to be
dropped.
Note that REGCACHE_FLAT is intended only for very low lag cases so doesn't
do nice things like read initial values from the device. Hence this change.
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
diff --git a/drivers/iio/chemical/atlas-ph-sensor.c b/drivers/iio/chemical/atlas-ph-sensor.c
index 06cd49cbfae1a..71c8e02ea48af 100644
--- a/drivers/iio/chemical/atlas-ph-sensor.c
+++ b/drivers/iio/chemical/atlas-ph-sensor.c
@@ -65,8 +65,6 @@ struct atlas_data {
static const struct regmap_range atlas_volatile_ranges[] = {
regmap_reg_range(ATLAS_REG_INT_CONTROL, ATLAS_REG_INT_CONTROL),
- regmap_reg_range(ATLAS_REG_CALIB_STATUS, ATLAS_REG_CALIB_STATUS),
- regmap_reg_range(ATLAS_REG_TEMP_DATA, ATLAS_REG_TEMP_DATA + 4),
regmap_reg_range(ATLAS_REG_PH_DATA, ATLAS_REG_PH_DATA + 4),
};
@@ -83,7 +81,7 @@ static const struct regmap_config atlas_regmap_config = {
.volatile_table = &atlas_volatile_table,
.max_register = ATLAS_REG_PH_DATA + 4,
- .cache_type = REGCACHE_FLAT,
+ .cache_type = REGCACHE_RBTREE,
};
static const struct iio_chan_spec atlas_channels[] = {