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From: aisheng.dong@nxp.com (Dong Aisheng)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/7] cpufreq: make cpufreq_generic_init transition_latency default to CPUFREQ_ETERNAL
Date: Thu, 24 Aug 2017 00:10:09 +0800	[thread overview]
Message-ID: <1503504610-12880-7-git-send-email-aisheng.dong@nxp.com> (raw)
In-Reply-To: <1503504610-12880-1-git-send-email-aisheng.dong@nxp.com>

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 <vireshk@kernel.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
---
 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;
 
 	/*
-- 
2.7.4

  parent reply	other threads:[~2017-08-23 16:10 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-23 16:10 [PATCH 0/7] PM / OPP: per OPP node clock support and imx7ulp cpufreq driver Dong Aisheng
2017-08-23 16:10 ` [PATCH 1/7] PM / OPP: Add platform specific set_clk function Dong Aisheng
2017-09-19 22:58   ` Viresh Kumar
2017-09-20  7:03     ` Dong Aisheng
2017-09-20 20:30       ` Viresh Kumar
2017-09-21  2:17         ` A.s. Dong
2017-08-23 16:10 ` [PATCH 2/7] dt-bindings: PM / OPP: add clocks per OPP node support Dong Aisheng
2017-08-31 17:39   ` Rob Herring
2017-09-01 13:01     ` Dong Aisheng
2017-08-23 16:10 ` [PATCH 3/7] PM / OPP: rename opp_table->clk to opp_table->cur_clk Dong Aisheng
2017-08-23 16:10 ` [PATCH 4/7] PM / OPP: use OPP node clock to set CPU frequency Dong Aisheng
2017-08-23 16:10 ` [PATCH 5/7] PM / OPP: Add dev_pm_opp_get_cur_clk() Dong Aisheng
2017-08-23 16:10 ` Dong Aisheng [this message]
2017-09-19 23:10   ` [PATCH 6/7] cpufreq: make cpufreq_generic_init transition_latency default to CPUFREQ_ETERNAL Viresh Kumar
2017-09-20  7:04     ` Dong Aisheng
2017-09-20 14:45       ` Viresh Kumar
2017-08-23 16:10 ` [PATCH 7/7] cpufreq: add imx7ulp cpufreq driver Dong Aisheng
2017-09-11  7:28 ` [PATCH 0/7] PM / OPP: per OPP node clock support and " Dong Aisheng
2017-09-19 22:54   ` Viresh Kumar

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