This patch adds DP audio output support to the rk3399-gru machine driver.

Signed-off-by: Chris Zhong zyw@rock-chips.com ---

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);