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authorLaxman Dewangan <ldewangan@nvidia.com>2012-12-25 20:35:59 +0530
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-12-27 17:30:45 +0000
commitfaa3b2d57964e3c3e974e1d0bea8e047bd8e5edd (patch)
tree22467ce29c024f9886dc0f694b67883d046c613e /drivers/regulator
parenta49f0d1ea3ec94fc7cf33a7c36a16343b74bd565 (diff)
downloadlinux-faa3b2d57964e3c3e974e1d0bea8e047bd8e5edd.tar.gz
regulator: tps51632: add register property for regmap
All TPS51632 registers are not readable/writable and non-volatiles. Add property of the registers whether it is readable/writable or volatile for regmap framework. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/tps51632-regulator.c41
1 files changed, 36 insertions, 5 deletions
diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c
index ab21133e6784..b96fb0e15a82 100644
--- a/drivers/regulator/tps51632-regulator.c
+++ b/drivers/regulator/tps51632-regulator.c
@@ -205,18 +205,49 @@ skip_pwm_config:
return ret;
}
-static bool rd_wr_reg(struct device *dev, unsigned int reg)
+static bool is_volatile_reg(struct device *dev, unsigned int reg)
{
- if ((reg >= 0x8) && (reg <= 0x10))
+ switch (reg) {
+ case TPS51632_OFFSET_REG:
+ case TPS51632_FAULT_REG:
+ case TPS51632_IMON_REG:
+ return true;
+ default:
return false;
- return true;
+ }
+}
+
+static bool is_read_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0x08 ... 0x0F:
+ return false;
+ default:
+ return true;
+ }
+}
+
+static bool is_write_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TPS51632_VOLTAGE_SELECT_REG:
+ case TPS51632_VOLTAGE_BASE_REG:
+ case TPS51632_VMAX_REG:
+ case TPS51632_DVFS_CONTROL_REG:
+ case TPS51632_POWER_STATE_REG:
+ case TPS51632_SLEW_REGS:
+ return true;
+ default:
+ return false;
+ }
}
static const struct regmap_config tps51632_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
- .writeable_reg = rd_wr_reg,
- .readable_reg = rd_wr_reg,
+ .writeable_reg = is_write_reg,
+ .readable_reg = is_read_reg,
+ .volatile_reg = is_volatile_reg,
.max_register = TPS51632_MAX_REG - 1,
.cache_type = REGCACHE_RBTREE,
};