mfd: arizona: Wait for internal clocks to startup after reset

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/mfd/arizona-core.c

@@ -529,8 +529,10 @@ int arizona_dev_init(struct arizona *arizona)
 		goto err_enable;
 	}
 
-	if (arizona->pdata.reset)
+	if (arizona->pdata.reset) {
 		gpio_set_value_cansleep(arizona->pdata.reset, 1);
+		msleep(1);
+	}
 
 	regcache_cache_only(arizona->regmap, false);
 
@@ -589,6 +591,8 @@ int arizona_dev_init(struct arizona *arizona)
 			goto err_reset;
 		}
 
+		msleep(1);
+
 		ret = regcache_sync(arizona->regmap);
 		if (ret != 0) {
 			dev_err(dev, "Failed to sync device: %d\n", ret);