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regulator: twl: Provide of_map_mode for twl4030 

of_map_mode is needed so to be possible to set initial regulators mode from
the board DTS. Otherwise, for DT boot, regulators are left in their default
state after reset/reboot. Document device specific modes as well.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ivaylo Dimitrov 2016-04-05 08:59:34 +03:00 committed by Mark Brown
parent 32e5deac36
commit a221f95ef4
2 changed files with 25 additions and 3 deletions
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6
Documentation/devicetree/bindings/regulator/twl-regulator.txt
View File

@ -57,6 +57,12 @@ For twl4030 regulators/LDOs
Optional properties:
- Any optional property defined in bindings/regulator/regulator.txt
For twl4030 regulators/LDOs:
- regulator-initial-mode:
- 0x08 - Sleep mode, the nominal output voltage is maintained with low power
consumption with low load current capability.
- 0x0e - Active mode, the regulator can deliver its nominal output voltage
with full-load current capability.
Example:

22
drivers/regulator/twl-regulator.c
View File

@ -387,6 +387,18 @@ static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
return twl4030_send_pb_msg(message);
}
static inline unsigned int twl4030reg_map_mode(unsigned int mode)
{
switch (mode) {
case RES_STATE_ACTIVE:
return REGULATOR_MODE_NORMAL;
case RES_STATE_SLEEP:
return REGULATOR_MODE_STANDBY;
default:
return -EINVAL;
}
}
static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
@ -889,10 +901,11 @@ static struct regulator_ops twlsmps_ops = {
#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
remap_conf) \
TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
remap_conf, TWL4030, twl4030fixed_ops)
remap_conf, TWL4030, twl4030fixed_ops, \
twl4030reg_map_mode)
#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
0x0, TWL6030, twl6030fixed_ops)
0x0, TWL6030, twl6030fixed_ops, 0x0)
#define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
static const struct twlreg_info TWL4030_INFO_##label = { \
@ -909,6 +922,7 @@ static const struct twlreg_info TWL4030_INFO_##label = { \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_time = turnon_delay, \
.of_map_mode = twl4030reg_map_mode, \
}, \
}
@ -924,6 +938,7 @@ static const struct twlreg_info TWL4030_INFO_##label = { \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_time = turnon_delay, \
.of_map_mode = twl4030reg_map_mode, \
}, \
}
@ -969,7 +984,7 @@ static const struct twlreg_info TWL6032_INFO_##label = { \
}
#define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
family, operations) \
family, operations, map_mode) \
static const struct twlreg_info TWLFIXED_INFO_##label = { \
.base = offset, \
.id = num, \
@ -984,6 +999,7 @@ static const struct twlreg_info TWLFIXED_INFO_##label = { \
.owner = THIS_MODULE, \
.min_uV = mVolts * 1000, \
.enable_time = turnon_delay, \
.of_map_mode = map_mode, \
}, \
}