ASoC: msm: Add support for 4-pole extension cable.
- Add the support to report lineout device when inserted plug
has high impedance on microphone line.
- This feature is enabled only with gpio headset detection.
Signed-off-by: Ravi Kumar Alamanda <ralama@codeaurora.org>
(cherry picked from commit 07b6bd6a9a1e431a86efa76b14030d882ee7771b)
(cherry picked from commit 39c0e134f67fcab824f1457a256c4fbf2525c347)
Change-Id: I6d4e3f147433ee9c0cc313118b540fee0b90f45f
Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>
diff --git a/sound/soc/codecs/wcd9310.h b/sound/soc/codecs/wcd9310.h
index 1cca360..4c9f8b4 100644
--- a/sound/soc/codecs/wcd9310.h
+++ b/sound/soc/codecs/wcd9310.h
@@ -176,6 +176,7 @@
unsigned int gpio;
unsigned int gpio_irq;
int gpio_level_insert;
+ bool detect_extn_cable;
/* swap_gnd_mic returns true if extern GND/MIC swap switch toggled */
bool (*swap_gnd_mic) (struct snd_soc_codec *);
};