This patch adds DP audio output support to the rk3399-gru machine
driver.
Signed-off-by: Chris Zhong <zyw@xxxxxxxxxxxxxx>
---
Changes in v3:
- change spdif to i2s2
Changes in v2:
- correct the commit message
.../bindings/sound/rockchip,rk3399-gru-sound.txt | 11 +--
sound/soc/rockchip/rk3399_gru_sound.c | 93 ++++++++++++++++++++++
2 files changed, 99 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
index f19b6c8..83af540 100644
--- a/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
@@ -1,15 +1,16 @@
-ROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards
+ROCKCHIP with MAX98357A/RT5514/DA7219 codecs and DP via spdif on GRU boards
Required properties:
- compatible: "rockchip,rk3399-gru-sound"
-- rockchip,cpu: The phandle of the Rockchip I2S controller that's
+- rockchip,cpu: The phandle of the Rockchip I2S controller controller that's
connected to the codecs
-- rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs
+- rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs and of the
+ DP encoder node
Example:
sound {
compatible = "rockchip,rk3399-gru-sound";
- rockchip,cpu = <&i2s0>;
- rockchip,codec = <&max98357a &rt5514 &da7219>;
+ rockchip,cpu = <&i2s0 &i2s2>;
+ rockchip,codec = <&max98357a &rt5514 &da7219 &cdn_dp>;
};
diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c
index 164b6da..d9aa2e0 100644
--- a/sound/soc/rockchip/rk3399_gru_sound.c
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -25,6 +25,7 @@
#include <linux/spi/spi.h>
#include <sound/core.h>
#include <sound/jack.h>
+#include <sound/hdmi-codec.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
@@ -214,6 +215,65 @@ static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd)
return 0;
}
+
+static int rockchip_sound_cdndp_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int mclk, ret;
+
+ /* in bypass mode, the mclk has to be one of the frequencies below */
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ case 24000:
+ case 32000:
+ case 48000:
+ case 64000:
+ case 96000:
+ mclk = 12288000;
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ case 88200:
+ mclk = 11289600;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ 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 cpu clock out %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_jack cdn_dp_card_jack;
+
+static int rockchip_sound_cdndp_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_soc_card *card = runtime->card;
+ struct snd_soc_codec *codec = runtime->codec;
+ int ret;
+
+ /* enable jack detection */
+ ret = snd_soc_card_jack_new(card, "DP Jack", SND_JACK_LINEOUT,
+ &cdn_dp_card_jack, NULL, 0);
+ if (ret) {
+ dev_err(card->dev, "Can't new DP Jack %d\n", ret);
+ return ret;
+ }
+
+ return hdmi_codec_set_jack_detect(codec, &cdn_dp_card_jack);
+}
+
static struct snd_soc_ops rockchip_sound_max98357a_ops = {
.hw_params = rockchip_sound_max98357a_hw_params,
};
@@ -226,10 +286,15 @@ static struct snd_soc_ops rockchip_sound_da7219_ops = {
.hw_params = rockchip_sound_da7219_hw_params,
};
+static struct snd_soc_ops rockchip_sound_cdndp_ops = {
+ .hw_params = rockchip_sound_cdndp_hw_params,
+};
+
enum {
DAILINK_MAX98357A,
DAILINK_RT5514,
DAILINK_DA7219,
+ DAILINK_CDNDP,
DAILINK_RT5514_DSP,
};
@@ -264,6 +329,15 @@ static struct snd_soc_dai_link rockchip_dailinks[] = {
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
},
+ [DAILINK_CDNDP] = {
+ .name = "DP",
+ .stream_name = "DP PCM",
+ .codec_dai_name = "i2s-hifi",
+ .init = rockchip_sound_cdndp_init,
+ .ops = &rockchip_sound_cdndp_ops,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ },
/* RT5514 DSP for voice wakeup via spi bus */
[DAILINK_RT5514_DSP] = {
.name = "RT5514 DSP",
@@ -334,6 +408,25 @@ static int rockchip_sound_probe(struct platform_device *pdev)
return -ENODEV;
}
+ cpu_node = of_parse_phandle(pdev->dev.of_node, "rockchip,cpu", 1);
+ if (!cpu_node) {
+ dev_err(&pdev->dev, "Property 'rockchip,cpu 1' missing or invalid\n");
+ return -EINVAL;
+ }
+
+ rockchip_dailinks[DAILINK_CDNDP].platform_of_node = cpu_node;
+ rockchip_dailinks[DAILINK_CDNDP].cpu_of_node = cpu_node;
+
+ rockchip_dailinks[DAILINK_CDNDP].codec_of_node =
+ of_parse_phandle(pdev->dev.of_node, "rockchip,codec",
+ DAILINK_CDNDP);
+ if (!rockchip_dailinks[DAILINK_CDNDP].codec_of_node) {
+ dev_err(&pdev->dev,
+ "Property[%d] 'rockchip,codec' missing or invalid\n",
+ DAILINK_CDNDP);
+ return -EINVAL;
+ }
+
rockchip_dailinks[DAILINK_RT5514_DSP].cpu_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
rockchip_dailinks[DAILINK_RT5514_DSP].cpu_dai_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
rockchip_dailinks[DAILINK_RT5514_DSP].platform_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
--
1.9.1
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