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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-09-02 14:36:50 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-22 14:49:30 -0700 |
| commit | 891aa8f203372989ae10335f592ac2c794daab12 (patch) | |
| tree | ce523348c020a0ca7aa6fb761fc3c9846fce908f | |
| parent | ee2a52fc66229e0cd6213809bbba527759517ddf (diff) | |
| download | lwn-891aa8f203372989ae10335f592ac2c794daab12.tar.gz lwn-891aa8f203372989ae10335f592ac2c794daab12.zip | |
cpufreq: dt: Tolerance applies on both sides of target voltage
commit a2022001cebd0825b96aa0f3345ea3ad44ae79d4 upstream.
Tolerance applies on both sides of the target voltage, i.e. both min and
max sides. But while checking if a voltage is supported by the regulator
or not, we haven't taken care of tolerance on the lower side. Fix that.
Cc: Lucas Stach <l.stach@pengutronix.de>
Fixes: 045ee45c4ff2 ("cpufreq: cpufreq-dt: disable unsupported OPPs")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/cpufreq/cpufreq-dt.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c index 528a82bf5038..99a406501e8c 100644 --- a/drivers/cpufreq/cpufreq-dt.c +++ b/drivers/cpufreq/cpufreq-dt.c @@ -255,7 +255,8 @@ static int cpufreq_init(struct cpufreq_policy *policy) rcu_read_unlock(); tol_uV = opp_uV * priv->voltage_tolerance / 100; - if (regulator_is_supported_voltage(cpu_reg, opp_uV, + if (regulator_is_supported_voltage(cpu_reg, + opp_uV - tol_uV, opp_uV + tol_uV)) { if (opp_uV < min_uV) min_uV = opp_uV; |