imx6q: free OPP table created during ->init()

OPP layer now supports freeing of OPPs and we should free them once they aren't
useful anymore.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index c2d3076..5da1d13 100644 (file)
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -31,6 +31,7 @@ static struct clk *step_clk;
 static struct clk *pll2_pfd2_396m_clk;
 
 static struct device *cpu_dev;
+static bool free_opp;
 static struct cpufreq_frequency_table *freq_table;
 static unsigned int transition_latency;
 
@@ -207,11 +208,14 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
                        goto put_reg;
                }
 
+               /* Because we have added the OPPs here, we must free them */
+               free_opp = true;
+
                num = dev_pm_opp_get_opp_count(cpu_dev);
                if (num < 0) {
                        ret = num;
                        dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
-                       goto put_reg;
+                       goto out_free_opp;
                }
        }
 
@@ -306,6 +310,9 @@ soc_opp_out:
 
 free_freq_table:
        dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
+out_free_opp:
+       if (free_opp)
+               of_free_opp_table(cpu_dev);
 put_reg:
        if (!IS_ERR(arm_reg))
                regulator_put(arm_reg);
@@ -332,6 +339,8 @@ static int imx6q_cpufreq_remove(struct platform_device *pdev)
 {
        cpufreq_unregister_driver(&imx6q_cpufreq_driver);
        dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
+       if (free_opp)
+               of_free_opp_table(cpu_dev);
        regulator_put(arm_reg);
        if (!IS_ERR(pu_reg))
                regulator_put(pu_reg);