sh: clk: Use cpufreq_for_each_valid_entry macro for iteration

The cpufreq core now supports the cpufreq_for_each_valid_entry macro
helper for iteration over the cpufreq_frequency_table, so use it.

It should have no functional changes.
Signed-off-by: NStratos Karafotis <stratosk@semaphore.gr>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/sh/clk/core.c

@@ -196,17 +196,11 @@ int clk_rate_table_find(struct clk *clk,
 			struct cpufreq_frequency_table *freq_table,
 			unsigned long rate)
 {
-	int i;
-
-	for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		unsigned long freq = freq_table[i].frequency;
-
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
+	struct cpufreq_frequency_table *pos;
 
-		if (freq == rate)
-			return i;
-	}
+	cpufreq_for_each_valid_entry(pos, freq_table)
+		if (pos->frequency == rate)
+			return pos - freq_table;
 
 	return -ENOENT;
 }
@@ -575,11 +569,7 @@ long clk_round_parent(struct clk *clk, unsigned long target,
 		return abs(target - *best_freq);
 	}
 
-	for (freq = parent->freq_table; freq->frequency != CPUFREQ_TABLE_END;
-	     freq++) {
-		if (freq->frequency == CPUFREQ_ENTRY_INVALID)
-			continue;
-
+	cpufreq_for_each_valid_entry(freq, parent->freq_table) {
 		if (unlikely(freq->frequency / target <= div_min - 1)) {
 			unsigned long freq_max;