cpufreq: arm_big_little: 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>

3 files changed, 11 insertions, 2 deletions

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index a46c223c2506..e1a6ba66a7f5 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -289,6 +289,8 @@ static void _put_cluster_clk_and_freq_table(struct device *cpu_dev)
 
         clk_put(clk[cluster]);
         dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+        if (arm_bL_ops->free_opp_table)
+                arm_bL_ops->free_opp_table(cpu_dev);
         dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster);
 }
 
@@ -337,7 +339,7 @@ static int _get_cluster_clk_and_freq_table(struct device *cpu_dev)
         if (ret) {
                 dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n",
                                 __func__, cpu_dev->id, ret);
-                goto out;
+                goto free_opp_table;
         }
 
         name[12] = cluster + '0';
@@ -354,6 +356,9 @@ static int _get_cluster_clk_and_freq_table(struct device *cpu_dev)
         ret = PTR_ERR(clk[cluster]);
         dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
 
+free_opp_table:
+        if (arm_bL_ops->free_opp_table)
+                arm_bL_ops->free_opp_table(cpu_dev);
 out:
         dev_err(cpu_dev, "%s: Failed to get data for cluster: %d\n", __func__,
                         cluster);
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index 70f18fc12d4a..a211f7db9d32 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -25,13 +25,16 @@
 
 struct cpufreq_arm_bL_ops {
         char name[CPUFREQ_NAME_LEN];
-        int (*get_transition_latency)(struct device *cpu_dev);
 
         /*
          * This must set opp table for cpu_dev in a similar way as done by
          * of_init_opp_table().
          */
         int (*init_opp_table)(struct device *cpu_dev);
+
+        /* Optional */
+        int (*get_transition_latency)(struct device *cpu_dev);
+        void (*free_opp_table)(struct device *cpu_dev);
 };
 
 int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index 4550f6976768..ef0b3f1324d5 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -82,6 +82,7 @@ static struct cpufreq_arm_bL_ops dt_bL_ops = {
         .name   = "dt-bl",
         .get_transition_latency = dt_get_transition_latency,
         .init_opp_table = dt_init_opp_table,
+        .free_opp_table = of_free_opp_table,
 };
 
 static int generic_bL_probe(struct platform_device *pdev)