Use two dai_links. One for HDMI and one for max98090.
With this setup, audio can play to speaker and HDMI selectively.

Signed-off-by: Cheng-Yi Chiang <cychi...@chromium.org>
---
 sound/soc/rockchip/Kconfig             |  3 +-
 sound/soc/rockchip/rockchip_max98090.c | 96 ++++++++++++++++++++------
 2 files changed, 75 insertions(+), 24 deletions(-)

diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig
index b43657e6e655..d610b553ea3b 100644
--- a/sound/soc/rockchip/Kconfig
+++ b/sound/soc/rockchip/Kconfig
@@ -40,9 +40,10 @@ config SND_SOC_ROCKCHIP_MAX98090
        select SND_SOC_ROCKCHIP_I2S
        select SND_SOC_MAX98090
        select SND_SOC_TS3A227E
+       select SND_SOC_HDMI_CODEC
        help
          Say Y or M here if you want to add support for SoC audio on Rockchip
-         boards using the MAX98090 codec, such as Veyron.
+         boards using the MAX98090 codec and HDMI codec, such as Veyron.
 
 config SND_SOC_ROCKCHIP_RT5645
        tristate "ASoC support for Rockchip boards using a RT5645/RT5650 codec"
diff --git a/sound/soc/rockchip/rockchip_max98090.c 
b/sound/soc/rockchip/rockchip_max98090.c
index c5fc24675a33..c82948e383da 100644
--- a/sound/soc/rockchip/rockchip_max98090.c
+++ b/sound/soc/rockchip/rockchip_max98090.c
@@ -11,6 +11,7 @@
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
 #include <sound/core.h>
+#include <sound/hdmi-codec.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -41,6 +42,7 @@ static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
        SND_SOC_DAPM_MIC("Headset Mic", NULL),
        SND_SOC_DAPM_MIC("Int Mic", NULL),
        SND_SOC_DAPM_SPK("Speaker", NULL),
+       SND_SOC_DAPM_LINE("HDMI", NULL),
 };
 
 static const struct snd_soc_dapm_route rk_audio_map[] = {
@@ -52,6 +54,7 @@ static const struct snd_soc_dapm_route rk_audio_map[] = {
        {"Headphone", NULL, "HPR"},
        {"Speaker", NULL, "SPKL"},
        {"Speaker", NULL, "SPKR"},
+       {"HDMI", NULL, "TX"},
 };
 
 static const struct snd_kcontrol_new rk_mc_controls[] = {
@@ -59,6 +62,7 @@ static const struct snd_kcontrol_new rk_mc_controls[] = {
        SOC_DAPM_PIN_SWITCH("Headset Mic"),
        SOC_DAPM_PIN_SWITCH("Int Mic"),
        SOC_DAPM_PIN_SWITCH("Speaker"),
+       SOC_DAPM_PIN_SWITCH("HDMI"),
 };
 
 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
@@ -92,38 +96,63 @@ static int rk_aif1_hw_params(struct snd_pcm_substream 
*substream,
 
        ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
                                     SND_SOC_CLOCK_OUT);
-       if (ret < 0) {
-               dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
+       if (ret) {
+               dev_err(cpu_dai->dev, "Can't set cpu dai clock %d\n", ret);
                return ret;
        }
 
+       /* HDMI codec dai does not need to set sysclk. */
+       if (!strcmp(rtd->dai_link->name, "HDMI"))
+               return 0;
+
        ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
                                     SND_SOC_CLOCK_IN);
-       if (ret < 0) {
-               dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
+       if (ret) {
+               dev_err(codec_dai->dev, "Can't set codec dai clock %d\n", ret);
                return ret;
        }
 
-       return ret;
+       return 0;
 }
 
 static const struct snd_soc_ops rk_aif1_ops = {
        .hw_params = rk_aif1_hw_params,
 };
 
-SND_SOC_DAILINK_DEFS(hifi,
+SND_SOC_DAILINK_DEFS(analog,
        DAILINK_COMP_ARRAY(COMP_EMPTY()),
        DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")),
        DAILINK_COMP_ARRAY(COMP_EMPTY()));
 
-static struct snd_soc_dai_link rk_dailink = {
-       .name = "max98090",
-       .stream_name = "Audio",
-       .ops = &rk_aif1_ops,
-       /* set max98090 as slave */
-       .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
-               SND_SOC_DAIFMT_CBS_CFS,
-       SND_SOC_DAILINK_REG(hifi),
+SND_SOC_DAILINK_DEFS(hdmi,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC(HDMI_CODEC_DRV_NAME, "i2s-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+enum {
+       DAILINK_MAX98090,
+       DAILINK_HDMI,
+};
+
+/* max98090 and HDMI codec dai_link */
+static struct snd_soc_dai_link rk_dailinks[] = {
+       [DAILINK_MAX98090] = {
+               .name = "max98090",
+               .stream_name = "Analog",
+               .ops = &rk_aif1_ops,
+               /* set max98090 as slave */
+               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                       SND_SOC_DAIFMT_CBS_CFS,
+               SND_SOC_DAILINK_REG(analog),
+       },
+       [DAILINK_HDMI] = {
+               .name = "HDMI",
+               .stream_name = "HDMI",
+               .ops = &rk_aif1_ops,
+               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                       SND_SOC_DAIFMT_CBS_CFS,
+               SND_SOC_DAILINK_REG(hdmi),
+       }
 };
 
 static int rk_98090_headset_init(struct snd_soc_component *component);
@@ -136,8 +165,8 @@ static struct snd_soc_aux_dev rk_98090_headset_dev = {
 static struct snd_soc_card snd_soc_card_rk = {
        .name = "ROCKCHIP-I2S",
        .owner = THIS_MODULE,
-       .dai_link = &rk_dailink,
-       .num_links = 1,
+       .dai_link = rk_dailinks,
+       .num_links = ARRAY_SIZE(rk_dailinks),
        .aux_dev = &rk_98090_headset_dev,
        .num_aux_devs = 1,
        .dapm_widgets = rk_dapm_widgets,
@@ -173,27 +202,48 @@ static int snd_rk_mc_probe(struct platform_device *pdev)
        int ret = 0;
        struct snd_soc_card *card = &snd_soc_card_rk;
        struct device_node *np = pdev->dev.of_node;
+       struct device_node *np_analog;
+       struct device_node *np_cpu;
+       struct of_phandle_args args;
 
        /* register the soc card */
        card->dev = &pdev->dev;
 
-       rk_dailink.codecs->of_node = of_parse_phandle(np,
-                       "rockchip,audio-codec", 0);
-       if (!rk_dailink.codecs->of_node) {
+       np_analog = of_parse_phandle(np, "rockchip,audio-codec", 0);
+       if (!np_analog) {
                dev_err(&pdev->dev,
                        "Property 'rockchip,audio-codec' missing or invalid\n");
                return -EINVAL;
        }
+       rk_dailinks[DAILINK_MAX98090].codecs->of_node = np_analog;
+
+       ret = of_parse_phandle_with_fixed_args(np, "rockchip,audio-codec",
+                                              0, 0, &args);
+       if (ret) {
+               dev_err(&pdev->dev,
+                       "Unable to parse property 'rockchip,audio-codec'\n");
+               return ret;
+       }
+
+       ret = snd_soc_get_dai_name(
+                       &args, &rk_dailinks[DAILINK_MAX98090].codecs->dai_name);
+       if (ret) {
+               dev_err(&pdev->dev, "Unable to get codec dai_name\n");
+               return ret;
+       }
+
+       np_cpu = of_parse_phandle(np, "rockchip,i2s-controller", 0);
 
-       rk_dailink.cpus->of_node = of_parse_phandle(np,
-                       "rockchip,i2s-controller", 0);
-       if (!rk_dailink.cpus->of_node) {
+       if (!np_cpu) {
                dev_err(&pdev->dev,
                        "Property 'rockchip,i2s-controller' missing or 
invalid\n");
                return -EINVAL;
        }
 
-       rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;
+       rk_dailinks[DAILINK_MAX98090].cpus->of_node = np_cpu;
+       rk_dailinks[DAILINK_MAX98090].platforms->of_node = np_cpu;
+       rk_dailinks[DAILINK_HDMI].cpus->of_node = np_cpu;
+       rk_dailinks[DAILINK_HDMI].platforms->of_node = np_cpu;
 
        rk_98090_headset_dev.codec_of_node = of_parse_phandle(np,
                        "rockchip,headset-codec", 0);
-- 
2.22.0.510.g264f2c817a-goog

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