cpufreq: interactive: build fixes for 4.4

Bring back cpufreq_{get,put}_global_kobject() definitions
removed by upstream commit 8eec1020f0c0 "cpufreq: create
cpu/cpufreq at boot time" to fix build failures.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>

diff --git a/drivers/cpufreq/cpufreq_interactive.c b/drivers/cpufreq/cpufreq_interactive.c
index f2be0d87d73dc01984815a17fe3c66af94261346..9259d48297654c1c574f39828784c2dce3a1d47c 100644 (file)
--- a/drivers/cpufreq/cpufreq_interactive.c
+++ b/drivers/cpufreq/cpufreq_interactive.c
@@ -116,6 +116,28 @@ struct cpufreq_interactive_tunables {
        bool io_is_busy;
 };
 
+/*
+ * HACK: FIXME: Bring back cpufreq_{get,put}_global_kobject()
+ * definition removed by upstream commit 8eec1020f0c0 "cpufreq:
+ * create cpu/cpufreq at boot time" to fix build failures.
+ */
+static int cpufreq_global_kobject_usage;
+
+int cpufreq_get_global_kobject(void)
+{
+       if (!cpufreq_global_kobject_usage++)
+               return kobject_add(cpufreq_global_kobject,
+                               &cpu_subsys.dev_root->kobj, "%s", "cpufreq");
+
+       return 0;
+}
+
+void cpufreq_put_global_kobject(void)
+{
+       if (!--cpufreq_global_kobject_usage)
+               kobject_del(cpufreq_global_kobject);
+}
+
 /* For cases where we have single governor instance for system */
 static struct cpufreq_interactive_tunables *common_tunables;