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regulator: Display actual settings with constraints

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When voltage or current constraints are either missing or specify
a range display the actual setting along with the constraints if
we can. This can aid debugging of configuration problems.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2009-10-22 16:31:31 +01:00 committed by Liam Girdwood
parent af5866c9cd
commit 8f031b48cd
1 changed files with 33 additions and 15 deletions
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48
drivers/regulator/core.c
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@ -641,25 +641,43 @@ static void print_constraints(struct regulator_dev *rdev)
{
struct regulation_constraints *constraints = rdev->constraints;
char buf[80];
int count;
int count = 0;
int ret;
if (rdev->desc->type == REGULATOR_VOLTAGE) {
if (constraints->min_uV && constraints->max_uV) {
if (constraints->min_uV == constraints->max_uV)
count = sprintf(buf, "%d mV ",
constraints->min_uV / 1000);
count += sprintf(buf + count, "%d mV ",
constraints->min_uV / 1000);
else
count = sprintf(buf, "%d <--> %d mV ",
constraints->min_uV / 1000,
constraints->max_uV / 1000);
} else {
if (constraints->min_uA == constraints->max_uA)
count = sprintf(buf, "%d mA ",
constraints->min_uA / 1000);
else
count = sprintf(buf, "%d <--> %d mA ",
constraints->min_uA / 1000,
constraints->max_uA / 1000);
count += sprintf(buf + count, "%d <--> %d mV ",
constraints->min_uV / 1000,
constraints->max_uV / 1000);
}
if (!constraints->min_uV ||
constraints->min_uV != constraints->max_uV) {
ret = _regulator_get_voltage(rdev);
if (ret > 0)
count += sprintf(buf + count, "at %d mV ", ret / 1000);
}
if (constraints->min_uA && constraints->max_uA) {
if (constraints->min_uA == constraints->max_uA)
count += sprintf(buf + count, "%d mA ",
constraints->min_uA / 1000);
else
count += sprintf(buf + count, "%d <--> %d mA ",
constraints->min_uA / 1000,
constraints->max_uA / 1000);
}
if (!constraints->min_uA ||
constraints->min_uA != constraints->max_uA) {
ret = _regulator_get_current_limit(rdev);
if (ret > 0)
count += sprintf(buf + count, "at %d uA ", ret / 1000);
}
if (constraints->valid_modes_mask & REGULATOR_MODE_FAST)
count += sprintf(buf + count, "fast ");
if (constraints->valid_modes_mask & REGULATOR_MODE_NORMAL)