[PATCH] ASoC: sun4i-codec: Add "Right Mixer" to "Line Out Mono Diff." route

[Chen-Yu Tsai]

The mono differential output for "Line Out" downmixes the stereo audio
from the mixer, instead of just taking the left channel.

Add a route from the "Right Mixer" to "Line Out Source Playback Route"
through the "Mono Differential" path, so DAPM doesn't shut down
everything if the left channel is muted.

Fixes: 0f909f98d7cb ("ASoC: sun4i-codec: Add support for A31 Line Out
		      playback")
Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 sound/soc/sunxi/sun4i-codec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 848af01692a0..c3aab10fa085 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -1058,6 +1058,7 @@ static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {
 	{ "Line Out Source Playback Route", "Stereo", "Left Mixer" },
 	{ "Line Out Source Playback Route", "Stereo", "Right Mixer" },
 	{ "Line Out Source Playback Route", "Mono Differential", "Left Mixer" },
+	{ "Line Out Source Playback Route", "Mono Differential", "Right Mixer" },
 	{ "LINEOUT", NULL, "Line Out Source Playback Route" },
 
 	/* ADC Routes */
-- 
2.11.0