---

yaml
---
r: 258582
b: refs/heads/master
c: 90d5d0a
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fb3b1fefaaccdbdc716db0963ba41fb6b4221e60
+refs/heads/master: 90d5d0a119bcf189e8b33f776b4f8371b789b311

trunk/drivers/cpufreq/s5pv210-cpufreq.c

@@ -29,6 +29,18 @@ static struct cpufreq_freqs freqs;
 #define APLL_VAL_1000	((1 << 31) | (125 << 16) | (3 << 8) | 1)
 #define APLL_VAL_800	((1 << 31) | (100 << 16) | (3 << 8) | 1)
 
+/*
+ * relation has an additional symantics other than the standard of cpufreq
+ * DISALBE_FURTHER_CPUFREQ: disable further access to target
+ * ENABLE_FURTUER_CPUFREQ: enable access to target
+ */
+enum cpufreq_access {
+	DISABLE_FURTHER_CPUFREQ = 0x10,
+	ENABLE_FURTHER_CPUFREQ = 0x20,
+};
+
+static bool no_cpufreq_access;
+
 /*
  * DRAM configurations to calculate refresh counter for changing
  * frequency of memory.
@@ -146,6 +158,22 @@ static int s5pv210_target(struct cpufreq_policy *policy,
 	unsigned int pll_changing = 0;
 	unsigned int bus_speed_changing = 0;
 
+	if (relation & ENABLE_FURTHER_CPUFREQ)
+		no_cpufreq_access = false;
+
+	if (no_cpufreq_access) {
+#ifdef CONFIG_PM_VERBOSE
+		pr_err("%s:%d denied access to %s as it is disabled"
+				"temporarily\n", __FILE__, __LINE__, __func__);
+#endif
+		return -EINVAL;
+	}
+
+	if (relation & DISABLE_FURTHER_CPUFREQ)
+		no_cpufreq_access = true;
+
+	relation &= ~(ENABLE_FURTHER_CPUFREQ | DISABLE_FURTHER_CPUFREQ);
+
 	freqs.old = s5pv210_getspeed(0);
 
 	if (cpufreq_frequency_table_target(policy, s5pv210_freq_table,