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Commit 953ba9ff authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz Committed by Rafael J. Wysocki
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cpufreq-dt: add suspend frequency support 



Add suspend frequency support and if needed set it to
the frequency obtained from the suspend opp (can be defined
using opp-v2 bindings and is optional).

Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 201f3716

drivers/cpufreq/cpufreq-dt.c

+9 −0
Original line number Diff line number Diff line
@@ -196,6 +196,7 @@ static int cpufreq_init(struct cpufreq_policy *policy) 
	struct device *cpu_dev;

	struct regulator *cpu_reg;

	struct clk *cpu_clk;

	struct dev_pm_opp *suspend_opp;

	unsigned long min_uV = ~0, max_uV = 0;

	unsigned int transition_latency;

	bool need_update = false;
@@ -333,6 +334,13 @@ static int cpufreq_init(struct cpufreq_policy *policy) 
	policy->driver_data = priv;



	policy->clk = cpu_clk;



	rcu_read_lock();

	suspend_opp = dev_pm_opp_get_suspend_opp(cpu_dev);

	if (suspend_opp)

		policy->suspend_freq = dev_pm_opp_get_freq(suspend_opp) / 1000;

	rcu_read_unlock();



	ret = cpufreq_table_validate_and_show(policy, freq_table);

	if (ret) {

		dev_err(cpu_dev, "%s: invalid frequency table: %d\n", __func__,
@@ -423,6 +431,7 @@ static struct cpufreq_driver dt_cpufreq_driver = { 
	.ready = cpufreq_ready,

	.name = "cpufreq-dt",

	.attr = cpufreq_dt_attr,

	.suspend = cpufreq_generic_suspend,

};



static int dt_cpufreq_probe(struct platform_device *pdev)