This is a note to let you know that I've just added the patch titled
cpufreq: dt: Tolerance applies on both sides of target voltage
to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cpufreq-dt-tolerance-applies-on-both-sides-of-target-voltage.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a2022001cebd0825b96aa0f3345ea3ad44ae79d4 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Date: Wed, 2 Sep 2015 14:36:50 +0530
Subject: cpufreq: dt: Tolerance applies on both sides of target voltage
From: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Fixes: 045ee45c4ff2 ("cpufreq: cpufreq-dt: disable unsupported OPPs")
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/cpufreq/cpufreq-dt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -255,7 +255,8 @@ static int cpufreq_init(struct cpufreq_p
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;
Patches currently in stable-queue which might be from viresh.kumar@xxxxxxxxxx are
queue-4.2/cpufreq-dt-tolerance-applies-on-both-sides-of-target-voltage.patch
queue-4.2/x86-kexec-fix-kexec-crash-in-syscall-kexec_file_load.patch
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