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authorViresh Kumar <viresh.kumar@linaro.org>2015-09-02 14:36:50 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-09-03 02:46:09 +0200
commita2022001cebd0825b96aa0f3345ea3ad44ae79d4 (patch)
tree5e56350c75065a69a9dc1bc36050cc4267c3ab3e /drivers/cpufreq
parent8bc862843901e282e58f5ecd66f1df24366ecb6b (diff)
downloadblackbird-op-linux-a2022001cebd0825b96aa0f3345ea3ad44ae79d4.tar.gz
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cpufreq: dt: Tolerance applies on both sides of target voltage
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>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/cpufreq-dt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index b1131cf89757..3b64c203bf99 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -303,7 +303,8 @@ 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;
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