Commit a221f95e authored by Ivaylo Dimitrov's avatar Ivaylo Dimitrov Committed by Mark Brown
Browse files

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: default avatarIvaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 32e5deac

Documentation/devicetree/bindings/regulator/twl-regulator.txt

+6 −0
Original line number Diff line number Diff line
@@ -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:

drivers/regulator/twl-regulator.c

+19 −3
Original line number Diff line number Diff line
@@ -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, \

		}, \

	}

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