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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Jimmy Cheng-Yi Chiang <cychiang@google.com>,
        Jeffy Chen <jeffy.chen@rock-chips.com>,
        Brian Norris <briannorris@chromium.org>,
        Mark Brown <broonie@kernel.org>,
        Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 4.14 083/183] ASoC: rockchip: Use dummy_dai for rt5514 dsp dailink
Date:   Wed, 25 Apr 2018 12:35:03 +0200
Message-Id: <20180425103245.836344112@linuxfoundation.org>
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4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jeffy Chen <jeffy.chen@rock-chips.com>


[ Upstream commit fde7f9dbc71365230eeb8c8ea97ce9b552c8e5bd ]

The rt5514 dsp captures pcm data through spi directly, so we should not
use rockchip-i2s as it's cpu dai like other codecs.

Use dummy_dai for rt5514 dsp dailink to make voice wakeup work again.

Reported-by: Jimmy Cheng-Yi Chiang <cychiang@google.com>
Fixes: (72cfb0f20c75 ASoC: rockchip: Use codec of_node and dai_name for rt5514 dsp)
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/rockchip/rk3399_gru_sound.c |   19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

--- a/sound/soc/rockchip/rk3399_gru_sound.c
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -387,7 +387,8 @@ static const struct snd_soc_dai_link roc
 	[DAILINK_RT5514_DSP] = {
 		.name = "RT5514 DSP",
 		.stream_name = "Wake on Voice",
-		.codec_dai_name = "rt5514-dsp-cpu-dai",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
 	},
 };
 
@@ -432,7 +433,18 @@ static int rockchip_sound_of_parse_dais(
 		if (index < 0)
 			continue;
 
-		np_cpu = (index == DAILINK_CDNDP) ? np_cpu1 : np_cpu0;
+		switch (index) {
+		case DAILINK_CDNDP:
+			np_cpu = np_cpu1;
+			break;
+		case DAILINK_RT5514_DSP:
+			np_cpu = np_codec;
+			break;
+		default:
+			np_cpu = np_cpu0;
+			break;
+		}
+
 		if (!np_cpu) {
 			dev_err(dev, "Missing 'rockchip,cpu' for %s\n",
 				rockchip_dais[index].name);
@@ -442,7 +454,8 @@ static int rockchip_sound_of_parse_dais(
 		dai = &card->dai_link[card->num_links++];
 		*dai = rockchip_dais[index];
 
-		dai->codec_of_node = np_codec;
+		if (!dai->codec_name)
+			dai->codec_of_node = np_codec;
 		dai->platform_of_node = np_cpu;
 		dai->cpu_of_node = np_cpu;
 	}