From mboxrd@z Thu Jan 1 00:00:00 1970 From: dongas86@gmail.com (Dong Aisheng) Date: Wed, 20 Sep 2017 15:04:50 +0800 Subject: [PATCH 6/7] cpufreq: make cpufreq_generic_init transition_latency default to CPUFREQ_ETERNAL In-Reply-To: <20170919231007.GJ30848@ubuntu> References: <1503504610-12880-1-git-send-email-aisheng.dong@nxp.com> <1503504610-12880-7-git-send-email-aisheng.dong@nxp.com> <20170919231007.GJ30848@ubuntu> Message-ID: <20170920070450.GB32187@b29396-OptiPlex-7040> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Sep 19, 2017 at 04:10:07PM -0700, Viresh Kumar wrote: > On 24-08-17, 00:10, Dong Aisheng wrote: > > If no valid transition_latency specified, let's make it default to > > CPUFREQ_ETERNAL which is consistent with its definition. > > > > This can save some of the same checkings like this: > > transition_latency = dev_pm_opp_get_max_transition_latency(cpu_dev); > > - if (!transition_latency) > > - transition_latency = CPUFREQ_ETERNAL; > > ret = cpufreq_generic_init(policy, freq_table, transition_latency); > > > > Cc: Viresh Kumar > > Cc: Nishanth Menon > > Cc: Stephen Boyd > > Cc: "Rafael J. Wysocki" > > Signed-off-by: Dong Aisheng > > --- > > drivers/cpufreq/cpufreq.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c > > index 9bf97a3..da07de6 100644 > > --- a/drivers/cpufreq/cpufreq.c > > +++ b/drivers/cpufreq/cpufreq.c > > @@ -180,6 +180,8 @@ int cpufreq_generic_init(struct cpufreq_policy *policy, > > return ret; > > } > > > > + if (!transition_latency) > > + transition_latency = CPUFREQ_ETERNAL; > > policy->cpuinfo.transition_latency = transition_latency; > > > > /* > > Can you update all the existing drivers as well (in the same patch) > who can benefit from it? Yes, of course. Will do it in the updated version later. Thanks Regards Dong Aisheng > > -- > viresh