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Patch "cpufreq: dt: Tolerance applies on both sides of target voltage" has been added to the 4.2-stable tree

PATCH [email protected] 1 participant 1 message Oct 17, 2015

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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 <[email protected]> know about it.

Quoted 1 line

From a2022001cebd0825b96aa0f3345ea3ad44ae79d4 Mon Sep 17 00:00:00 2001

From: Viresh Kumar <[email protected]>
Date: Wed, 2 Sep 2015 14:36:50 +0530
Subject: cpufreq: dt: Tolerance applies on both sides of target voltage

From: Viresh Kumar <[email protected]>

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 <[email protected]>
Fixes 045ee45c4ff2 ("cpufreq: cpufreq-dt: disable unsupported OPPs")
---
 drivers/cpufreq/cpufreq-dt.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/cpufreq/cpufreq-dt.c +2 -1
@@ -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 [email protected] 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