iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

regulator: ab8500: provide per-regulator shift

Browse Source 
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: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Linus Walleij 2012-08-20 18:41:35 +02:00 committed by Mark Brown
parent db55168265
commit a0a7014cd4
1 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/regulator/ab8500.c
View File

@ -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,
},
/*