Commit a0a7014c authored by Linus Walleij's avatar Linus Walleij Committed by Mark Brown
Browse files

regulator: ab8500: provide per-regulator shift 



This encodes the voltage shifts (the number of bits to shift
the register to get to the selector) into the regulator info.
We have several new variants of the AB8500 so this varies a
lot.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent db551682

drivers/regulator/ab8500.c

+10 −10
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
 * @voltage_bank: bank to control regulator voltage

 * @voltage_reg: register to control regulator voltage

 * @voltage_mask: mask to control regulator voltage

 * @voltage_shift: shift to control regulator voltage

 * @delay: startup/set voltage delay in us

 */

struct ab8500_regulator_info {
@@ -50,6 +51,7 @@ struct ab8500_regulator_info { 
	u8 voltage_bank;

	u8 voltage_reg;

	u8 voltage_mask;

	u8 voltage_shift;

	unsigned int delay;

};
@@ -195,17 +197,14 @@ static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev) 
	}



	dev_vdbg(rdev_get_dev(rdev),

		"%s-get_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"

		" 0x%x\n",

		info->desc.name, info->voltage_bank, info->voltage_reg,

		info->voltage_mask, regval);

		"%s-get_voltage (bank, reg, mask, shift, value): "

		"0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",

		info->desc.name, info->voltage_bank,

		info->voltage_reg, info->voltage_mask,

		info->voltage_shift, regval);



	/* vintcore has a different layout */

	val = regval & info->voltage_mask;

	if (info->desc.id == AB8500_LDO_INTCORE)

		return val >> 0x3;

	else

		return val;

	return val >> info->voltage_shift;

}



static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev,
@@ -221,7 +220,7 @@ static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev, 
	}



	/* set the registers for the request */

	regval = (u8)selector;

	regval = (u8)selector << info->voltage_shift;

	ret = abx500_mask_and_set_register_interruptible(info->dev,

			info->voltage_bank, info->voltage_reg,

			info->voltage_mask, regval);
@@ -343,6 +342,7 @@ static struct ab8500_regulator_info 
		.voltage_bank		= 0x03,

		.voltage_reg		= 0x80,

		.voltage_mask		= 0x38,

		.voltage_shift		= 3,

	},



	/*

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