From 8f031b48cd2eab5fc3e4dffa06706372e90d63fe Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 22 Oct 2009 16:31:31 +0100 Subject: [PATCH] regulator: Display actual settings with constraints 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 Signed-off-by: Liam Girdwood --- drivers/regulator/core.c | 44 ++++++++++++++++++++++++++++------------ 1 file changed, 31 insertions(+), 13 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1848a3f0980e..d3be67e18519 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -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 { + 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, "%d mA ", - constraints->min_uA / 1000); + count += sprintf(buf + count, "%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 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) -- 2.20.1