--- zzzz-none-000/linux-3.10.107/sound/soc/codecs/wm8994.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/soc/codecs/wm8994.h	2021-02-04 17:41:59.000000000 +0000
@@ -13,6 +13,7 @@
 #include <linux/firmware.h>
 #include <linux/completion.h>
 #include <linux/workqueue.h>
+#include <linux/mutex.h>
 
 #include "wm_hubs.h"
 
@@ -134,6 +135,9 @@
 	struct mutex accdet_lock;
 	struct wm8994_micdet micdet[2];
 	struct delayed_work mic_work;
+	struct delayed_work open_circuit_work;
+	struct delayed_work mic_complete_work;
+	u16 mic_status;
 	bool mic_detecting;
 	bool jack_mic;
 	int btn_mask;
@@ -153,6 +157,7 @@
 	unsigned int aif1clk_disable:1;
 	unsigned int aif2clk_disable:1;
 
+	struct mutex fw_lock;
 	int dsp_active;
 	const struct firmware *cur_fw;
 	const struct firmware *mbc;