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dm: pmic: max77686: Support all BUCK regulators 

Add support for all BUCK regulators, now that the correct register is
accessed for each.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-08-03 08:19:25 -06:00
parent 8c4287090c
commit 75a429f1a2
1 changed files with 10 additions and 8 deletions
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18
drivers/power/regulator/max77686.c
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@ -81,13 +81,15 @@ static int max77686_buck_volt2hex(int buck, int uV)
/* hex = (uV - 600000) / 12500; */ /* hex = (uV - 600000) / 12500; */
hex = (uV - MAX77686_BUCK_UV_LMIN) / MAX77686_BUCK_UV_LSTEP; hex = (uV - MAX77686_BUCK_UV_LMIN) / MAX77686_BUCK_UV_LSTEP;
hex_max = MAX77686_BUCK234_VOLT_MAX_HEX; hex_max = MAX77686_BUCK234_VOLT_MAX_HEX;
/** break;
* Those use voltage scaller - temporary not implemented
* so return just 0
*/
return -ENOSYS;
default: default:
/* hex = (uV - 750000) / 50000; */ /*
* hex = (uV - 750000) / 50000. We assume that dynamic voltage
* scaling via GPIOs is not enabled and don't support that.
* If this is enabled then the driver will need to take that
* into account anrd check different registers depending on
* the current setting See the datasheet for details.
*/
hex = (uV - MAX77686_BUCK_UV_HMIN) / MAX77686_BUCK_UV_HSTEP; hex = (uV - MAX77686_BUCK_UV_HMIN) / MAX77686_BUCK_UV_HSTEP;
hex_max = MAX77686_BUCK_VOLT_MAX_HEX; hex_max = MAX77686_BUCK_VOLT_MAX_HEX;
break; break;
@ -379,11 +381,11 @@ static int max77686_buck_val(struct udevice *dev, int op, int *uV)
case 2: case 2:
case 3: case 3:
case 4: case 4:
/* Those use voltage scallers - will support in the future */
mask = MAX77686_BUCK234_VOLT_MASK; mask = MAX77686_BUCK234_VOLT_MASK;
return -ENOSYS; break;
default: default:
mask = MAX77686_BUCK_VOLT_MASK; mask = MAX77686_BUCK_VOLT_MASK;
break;
} }
ret = pmic_read(dev->parent, adr, &val, 1); ret = pmic_read(dev->parent, adr, &val, 1);