video: pxafb: Remove cpufreq policy notifier

The cpufreq policy notifier's CPUFREQ_ADJUST notification is going to
get removed soon.

The notifier callback pxafb_freq_policy() isn't doing anything apart
from printing a debug message on CPUFREQ_ADJUST notification. There is
no point in keeping an otherwise empty callback and registering the
notifier.

Remove it.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/video/fbdev/pxafb.c

@@ -1678,24 +1678,6 @@ pxafb_freq_transition(struct notifier_block *nb, unsigned long val, void *data)
 	}
 	return 0;
 }
-
-static int
-pxafb_freq_policy(struct notifier_block *nb, unsigned long val, void *data)
-{
-	struct pxafb_info *fbi = TO_INF(nb, freq_policy);
-	struct fb_var_screeninfo *var = &fbi->fb.var;
-	struct cpufreq_policy *policy = data;
-
-	switch (val) {
-	case CPUFREQ_ADJUST:
-		pr_debug("min dma period: %d ps, "
-			"new clock %d kHz\n", pxafb_display_dma_period(var),
-			policy->max);
-		/* TODO: fill in min/max values */
-		break;
-	}
-	return 0;
-}
 #endif
 
 #ifdef CONFIG_PM
@@ -2400,11 +2382,8 @@ static int pxafb_probe(struct platform_device *dev)
 
 #ifdef CONFIG_CPU_FREQ
 	fbi->freq_transition.notifier_call = pxafb_freq_transition;
-	fbi->freq_policy.notifier_call = pxafb_freq_policy;
 	cpufreq_register_notifier(&fbi->freq_transition,
 				CPUFREQ_TRANSITION_NOTIFIER);
-	cpufreq_register_notifier(&fbi->freq_policy,
-				CPUFREQ_POLICY_NOTIFIER);
 #endif
 
 	/*

drivers/video/fbdev/pxafb.h

@@ -162,7 +162,6 @@ struct pxafb_info {
 
 #ifdef CONFIG_CPU_FREQ
 	struct notifier_block	freq_transition;
-	struct notifier_block	freq_policy;
 #endif
 
 	struct regulator *lcd_supply;