[PATCH v4 2/4] cpufreq: allow cpufreq_generic_suspend() to work without suspend frequency

From: Bartlomiej Zolnierkiewicz
Date: Mon Sep 07 2015 - 11:43:33 EST

Some cpufreq drivers may set suspend frequency only for
selected setups but still would like to use the generic
suspend handler. Thus don't treat !policy->suspend_freq
condition as an incorrect one.

Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Cc: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
Cc: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Cc: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Cc: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
drivers/cpufreq/cpufreq.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index b3d9368..a634fcb 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1626,8 +1626,8 @@ int cpufreq_generic_suspend(struct cpufreq_policy *policy)
int ret;

if (!policy->suspend_freq) {
- pr_err("%s: suspend_freq can't be zero\n", __func__);
- return -EINVAL;
+ pr_debug("%s: suspend_freq not defined\n", __func__);
+ return 0;

pr_debug("%s: Setting suspend-freq: %u\n", __func__,

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