From 923859e3f6b281cc280214854a44dfd04cb7f65d Mon Sep 17 00:00:00 2001
From: "Agrawal, Akshu" <Akshu.Agrawal@amd.com>
Date: Thu, 12 Apr 2018 17:57:11 +0800
Subject: [PATCH] ASoC: AMD: Support headset button on Stoney DA7219

Adds headset button support.

TEST=Tested Volume UP/Down, Play/Pause functionality

Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/amd/acp-da7219-max98357a.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c
index b205c78..d281c22 100644
--- a/sound/soc/amd/acp-da7219-max98357a.c
+++ b/sound/soc/amd/acp-da7219-max98357a.c
@@ -33,6 +33,7 @@
 #include <linux/gpio.h>
 #include <linux/module.h>
 #include <linux/i2c.h>
+#include <linux/input.h>
 #include <linux/acpi.h>
 
 #include "../codecs/da7219.h"
@@ -80,6 +81,11 @@ static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
 		return ret;
 	}
 
+	snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+	snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
+	snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
+	snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
+
 	da7219_aad_jack_det(component, &cz_jack);
 
 	return 0;
-- 
2.7.4