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Subject[PATCH V2 1/2] regulator: tps51632: add register property for regmap
Date
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>
---
Changes from V1:
- No code change.
- Rebase in linux-next 20121224

drivers/regulator/tps51632-regulator.c | 41 ++++++++++++++++++++++++++++----
1 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c
index ab21133..b96fb0e 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,
};
--
1.7.1.1


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