patches.renesas/0137-cpufreq-remove-unused-notifier-CPUFREQ_-SUSPENDCHANG.patch

From c3a0c39f60e1cea0139d989209bfb7ce6773f3b9 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 19 Mar 2014 11:24:58 +0530
Subject: cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE}

Two cpufreq notifiers CPUFREQ_RESUMECHANGE and CPUFREQ_SUSPENDCHANGE have
not been used for some time, so remove them to clean up code a bit.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

(cherry picked from commit 0b443ead714f0cba797a7f2476dd756f22b5421e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 Documentation/cpu-freq/core.txt       | 4 ----
 arch/arm/kernel/smp.c                 | 3 +--
 arch/arm/kernel/smp_twd.c             | 2 +-
 arch/arm/mach-pxa/viper.c             | 3 ---
 arch/powerpc/oprofile/op_model_cell.c | 3 +--
 arch/sparc/kernel/time_64.c           | 3 +--
 arch/x86/kernel/tsc.c                 | 3 +--
 drivers/cpufreq/cpufreq.c             | 3 +--
 drivers/pcmcia/sa11xx_base.c          | 3 ---
 drivers/tty/serial/sh-sci.c           | 3 +--
 include/linux/cpufreq.h               | 2 --
 11 files changed, 7 insertions(+), 25 deletions(-)

diff --git a/Documentation/cpu-freq/core.txt b/Documentation/cpu-freq/core.txt
index ce0666e51036..0060d76b445f 100644
--- a/Documentation/cpu-freq/core.txt
+++ b/Documentation/cpu-freq/core.txt
@@ -92,7 +92,3 @@ values:
 cpu	- number of the affected CPU
 old	- old frequency
 new	- new frequency
-
-If the cpufreq core detects the frequency has changed while the system
-was suspended, these notifiers are called with CPUFREQ_RESUMECHANGE as
-second argument.
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index b7b4c86e338b..7c4fada440f0 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -674,8 +674,7 @@ static int cpufreq_callback(struct notifier_block *nb,
 	}
 
 	if ((val == CPUFREQ_PRECHANGE  && freq->old < freq->new) ||
-	    (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
-	    (val == CPUFREQ_RESUMECHANGE || val == CPUFREQ_SUSPENDCHANGE)) {
+	    (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
 		loops_per_jiffy = cpufreq_scale(global_l_p_j_ref,
 						global_l_p_j_ref_freq,
 						freq->new);
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index 6591e26fc13f..dfc32130bc44 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -166,7 +166,7 @@ static int twd_cpufreq_transition(struct notifier_block *nb,
 	 * frequency.  The timer is local to a cpu, so cross-call to the
 	 * changing cpu.
 	 */
-	if (state == CPUFREQ_POSTCHANGE || state == CPUFREQ_RESUMECHANGE)
+	if (state == CPUFREQ_POSTCHANGE)
 		smp_call_function_single(freqs->cpu, twd_update_frequency,
 			NULL, 1);
 
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index 29905b127ad9..41f27f667ca8 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -885,9 +885,6 @@ static int viper_cpufreq_notifier(struct notifier_block *nb,
 			viper_set_core_cpu_voltage(freq->new, 0);
 		}
 		break;
-	case CPUFREQ_RESUMECHANGE:
-		viper_set_core_cpu_voltage(freq->new, 0);
-		break;
 	default:
 		/* ignore */
 		break;
diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c
index 1f0ebdeea5f7..863d89386f60 100644
--- a/arch/powerpc/oprofile/op_model_cell.c
+++ b/arch/powerpc/oprofile/op_model_cell.c
@@ -1121,8 +1121,7 @@ oprof_cpufreq_notify(struct notifier_block *nb, unsigned long val, void *data)
 	int ret = 0;
 	struct cpufreq_freqs *frq = data;
 	if ((val == CPUFREQ_PRECHANGE && frq->old < frq->new) ||
-	    (val == CPUFREQ_POSTCHANGE && frq->old > frq->new) ||
-	    (val == CPUFREQ_RESUMECHANGE || val == CPUFREQ_SUSPENDCHANGE))
+	    (val == CPUFREQ_POSTCHANGE && frq->old > frq->new))
 		set_spu_profiling_frequency(frq->new, spu_cycle_reset);
 	return ret;
 }
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index c3d82b5f54ca..b397e053b872 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -659,8 +659,7 @@ static int sparc64_cpufreq_notifier(struct notifier_block *nb, unsigned long val
 		ft->clock_tick_ref = cpu_data(cpu).clock_tick;
 	}
 	if ((val == CPUFREQ_PRECHANGE  && freq->old < freq->new) ||
-	    (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
-	    (val == CPUFREQ_RESUMECHANGE)) {
+	    (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
 		cpu_data(cpu).clock_tick =
 			cpufreq_scale(ft->clock_tick_ref,
 				      ft->ref_freq,
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index e0d1d7a8354e..6b8d35b8cd62 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -914,8 +914,7 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
 		tsc_khz_ref = tsc_khz;
 	}
 	if ((val == CPUFREQ_PRECHANGE  && freq->old < freq->new) ||
-			(val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
-			(val == CPUFREQ_RESUMECHANGE)) {
+			(val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
 		*lpj = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new);
 
 		tsc_khz = cpufreq_scale(tsc_khz_ref, ref_freq, freq->new);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 153f4b92cc05..dc1447dc173e 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -257,8 +257,7 @@ static void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
 		pr_debug("saving %lu as reference value for loops_per_jiffy; "
 			"freq is %u kHz\n", l_p_j_ref, l_p_j_ref_freq);
 	}
-	if ((val == CPUFREQ_POSTCHANGE && ci->old != ci->new) ||
-	    (val == CPUFREQ_RESUMECHANGE || val == CPUFREQ_SUSPENDCHANGE)) {
+	if (val == CPUFREQ_POSTCHANGE && ci->old != ci->new) {
 		loops_per_jiffy = cpufreq_scale(l_p_j_ref, l_p_j_ref_freq,
 								ci->new);
 		pr_debug("scaling loops_per_jiffy to %lu "
diff --git a/drivers/pcmcia/sa11xx_base.c b/drivers/pcmcia/sa11xx_base.c
index 6eecd7cddf57..54d3089d157b 100644
--- a/drivers/pcmcia/sa11xx_base.c
+++ b/drivers/pcmcia/sa11xx_base.c
@@ -125,9 +125,6 @@ sa1100_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
 		if (freqs->new < freqs->old)
 			sa1100_pcmcia_set_mecr(skt, freqs->new);
 		break;
-	case CPUFREQ_RESUMECHANGE:
-		sa1100_pcmcia_set_mecr(skt, freqs->new);
-		break;
 	}
 
 	return 0;
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 7ee5a79222ff..88236da0ddf7 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1041,8 +1041,7 @@ static int sci_notifier(struct notifier_block *self,
 
 	sci_port = container_of(self, struct sci_port, freq_transition);
 
-	if ((phase == CPUFREQ_POSTCHANGE) ||
-	    (phase == CPUFREQ_RESUMECHANGE)) {
+	if (phase == CPUFREQ_POSTCHANGE) {
 		struct uart_port *port = &sci_port->port;
 
 		spin_lock_irqsave(&port->lock, flags);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 4d89e0e6f9cc..945313ca4bbf 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -306,8 +306,6 @@ cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy)
 /* Transition notifiers */
 #define CPUFREQ_PRECHANGE		(0)
 #define CPUFREQ_POSTCHANGE		(1)
-#define CPUFREQ_RESUMECHANGE		(8)
-#define CPUFREQ_SUSPENDCHANGE		(9)
 
 /* Policy Notifiers  */
 #define CPUFREQ_ADJUST			(0)
-- 
2.1.2