[2/4] OMAP OPP: add helper function to find OPP by index

Commit Message

Kevin Hilman Dec. 18, 2009, 5:45 p.m. UTC

None

Patch

diff --git a/arch/arm/plat-omap/include/plat/opp.h b/arch/arm/plat-omap/include/plat/opp.h
index 6fe574c..038a5c0 100644
--- a/arch/arm/plat-omap/include/plat/opp.h
+++ b/arch/arm/plat-omap/include/plat/opp.h
@@ -245,6 +245,9 @@  struct omap_opp * __deprecated opp_find_by_opp_id(struct omap_opp *opps,
 						  u8 opp_id);
 u8 __deprecated opp_get_opp_id(struct omap_opp *opp);
 
+struct omap_opp *__deprecated opp_find_by_index(struct omap_opp *opps,
+						u8 index);
+
 void opp_init_cpufreq_table(struct omap_opp *opps,
 			    struct cpufreq_frequency_table **table);
 
diff --git a/arch/arm/plat-omap/opp.c b/arch/arm/plat-omap/opp.c
index 106ad92..71b021b 100644
--- a/arch/arm/plat-omap/opp.c
+++ b/arch/arm/plat-omap/opp.c
@@ -90,6 +90,25 @@  int opp_get_opp_count(struct omap_opp *oppl)
 	return n;
 }
 
+/**
+ * opp_find_by_opp_index - look up OPP by OPP ID (deprecated)
+ * @opps: pointer to an array of struct omap_opp
+ *
+ * Returns the struct omap_opp pointer corresponding to the given
+ * array index.
+ */
+struct omap_opp *__deprecated opp_find_by_index(struct omap_opp *opps,
+						u8 index)
+{
+	if (!opps)
+		return NULL;
+
+	if (index >= opp_get_opp_count(opps))
+		return NULL;
+
+	return &opps[index];
+}
+
 struct omap_opp *opp_find_freq_exact(struct omap_opp *oppl,
 				     unsigned long freq, bool enabled)
 {