From d6c1dc3f52e3a65f35c58433ba57d14c0bad902f Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 4 Apr 2017 18:59:50 +0530 Subject: regulator: Add settling time for non-linear voltage transition Some regulators (some PWM regulators) have the voltage transition non-linear i.e. exponentially. On such cases, the settling time for voltage transition can not be presented in the voltage-ramp-delay. Add new property for non-linear voltage transition and handle this in getting the voltage settling time. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/of_regulator.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/regulator/of_regulator.c') diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 4f613ec99500..09d677d5d3f0 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -86,6 +86,10 @@ static void of_get_regulation_constraints(struct device_node *np, constraints->ramp_disable = true; } + ret = of_property_read_u32(np, "regulator-settling-time-us", &pval); + if (!ret) + constraints->settling_time = pval; + ret = of_property_read_u32(np, "regulator-enable-ramp-delay", &pval); if (!ret) constraints->enable_time = pval; -- cgit