regmap: Add a config option for hwspinlock
[muen/linux.git] / drivers / base / regmap / regmap.c
index 999e981a174af3e64ef2ad3125d473b66ba98297..ff6ef6a579c6151bdc799447b6ccdad8928d1e2b 100644 (file)
@@ -414,6 +414,7 @@ static unsigned int regmap_parse_64_native(const void *buf)
 }
 #endif
 
+#ifdef REGMAP_HWSPINLOCK
 static void regmap_lock_hwlock(void *__map)
 {
        struct regmap *map = __map;
@@ -456,6 +457,7 @@ static void regmap_unlock_hwlock_irqrestore(void *__map)
 
        hwspin_unlock_irqrestore(map->hwlock, &map->spinlock_flags);
 }
+#endif
 
 static void regmap_lock_mutex(void *__map)
 {
@@ -672,6 +674,7 @@ struct regmap *__regmap_init(struct device *dev,
                map->unlock = config->unlock;
                map->lock_arg = config->lock_arg;
        } else if (config->hwlock_id) {
+#ifdef REGMAP_HWSPINLOCK
                map->hwlock = hwspin_lock_request_specific(config->hwlock_id);
                if (!map->hwlock) {
                        ret = -ENXIO;
@@ -694,6 +697,10 @@ struct regmap *__regmap_init(struct device *dev,
                }
 
                map->lock_arg = map;
+#else
+               ret = -EINVAL;
+               goto err;
+#endif
        } else {
                if ((bus && bus->fast_io) ||
                    config->fast_io) {