From 00c877c69ba315d6c565a4df51c71b11e82cdeb8 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 18 Sep 2013 18:18:02 +0530 Subject: regulator: core: add support for configuring turn-on time through constraints The turn-on time of the regulator depends on the regulator device's electrical characteristics. Sometimes regulator turn-on time also depends on the capacitive load on the given platform and it can be more than the datasheet value. The driver provides the enable-time as per datasheet. Add support for configure the enable ramp time through regulator constraints so that regulator core can take this value for enable time for that regulator. Signed-off-by: Laxman Dewangan Acked-by: Stephen Warren Signed-off-by: Mark Brown --- drivers/regulator/of_regulator.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/regulator/of_regulator.c') diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 7827384680d6..ea4f36f2cbe2 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -23,6 +23,8 @@ static void of_get_regulation_constraints(struct device_node *np, const __be32 *min_uA, *max_uA, *ramp_delay; struct property *prop; struct regulation_constraints *constraints = &(*init_data)->constraints; + int ret; + u32 pval; constraints->name = of_get_property(np, "regulator-name", NULL); @@ -73,6 +75,10 @@ static void of_get_regulation_constraints(struct device_node *np, else constraints->ramp_disable = true; } + + ret = of_property_read_u32(np, "regulator-enable-ramp-delay", &pval); + if (!ret) + constraints->enable_time = pval; } /** -- cgit v1.2.3