[PATCH] ASoC: rockchip: Support headset button function on rk3399

[Cheng-Yi Chiang]

Set the mapping between button and media key event.

Signed-off-by: Cheng-Yi Chiang <cychi...@chromium.org>
---
 sound/soc/rockchip/rk3399_gru_sound.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/soc/rockchip/rk3399_gru_sound.c 
b/sound/soc/rockchip/rk3399_gru_sound.c
index 164b6da..ee06489 100644
--- a/sound/soc/rockchip/rk3399_gru_sound.c
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -23,6 +23,7 @@
 #include <linux/of_gpio.h>
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
+#include <linux/input.h>
 #include <sound/core.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
@@ -209,6 +210,14 @@ static int rockchip_sound_da7219_init(struct 
snd_soc_pcm_runtime *rtd)
                return ret;
        }
 
+       snd_jack_set_key(rockchip_sound_jack.jack, SND_JACK_BTN_0, KEY_MEDIA);
+       snd_jack_set_key(
+               rockchip_sound_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
+       snd_jack_set_key(
+               rockchip_sound_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
+       snd_jack_set_key(
+               rockchip_sound_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
+
        da7219_aad_jack_det(codec, &rockchip_sound_jack);
 
        return 0;
-- 
2.6.6