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regulator: tps51632: add register property for regmap

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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>
This commit is contained in:
Laxman Dewangan 2012-12-25 20:35:59 +05:30 committed by Mark Brown
parent a49f0d1ea3
commit faa3b2d579
1 changed files with 36 additions and 5 deletions
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41
drivers/regulator/tps51632-regulator.c
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@ -205,18 +205,49 @@ static int tps51632_init_dcdc(struct tps51632_chip *tps,
return ret; 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 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 = { static const struct regmap_config tps51632_regmap_config = {
.reg_bits = 8, .reg_bits = 8,
.val_bits = 8, .val_bits = 8,
.writeable_reg = rd_wr_reg, .writeable_reg = is_write_reg,
.readable_reg = rd_wr_reg, .readable_reg = is_read_reg,
.volatile_reg = is_volatile_reg,
.max_register = TPS51632_MAX_REG - 1, .max_register = TPS51632_MAX_REG - 1,
.cache_type = REGCACHE_RBTREE, .cache_type = REGCACHE_RBTREE,
}; };