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Subject[RESENT PATCH v6 6/8] ASoC: rockchip: Add support for DP codec
Date
Add support for optional cdn dp codec.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---

Changes in v6: None
Changes in v5: None
Changes in v3: None
Changes in v2: None

sound/soc/rockchip/Kconfig | 1 +
sound/soc/rockchip/rk3399_gru_sound.c | 59 +++++++++++++++++++++++++++++++++--
2 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig
index c84487805876..8f0d0d8d34e6 100644
--- a/sound/soc/rockchip/Kconfig
+++ b/sound/soc/rockchip/Kconfig
@@ -68,6 +68,7 @@ config SND_SOC_RK3399_GRU_SOUND
select SND_SOC_RT5514
select SND_SOC_DA7219
select SND_SOC_RT5514_SPI
+ select SND_SOC_HDMI_CODEC
help
Say Y or M here if you want to add support multiple codecs for SoC
audio on Rockchip RK3399 GRU boards.
diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c
index 347c34d0db4c..91aab5c18f3b 100644
--- a/sound/soc/rockchip/rk3399_gru_sound.c
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -228,6 +228,45 @@ 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 const struct snd_soc_ops rockchip_sound_max98357a_ops = {
.hw_params = rockchip_sound_max98357a_hw_params,
};
@@ -240,6 +279,10 @@ static const 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,
+};
+
static struct snd_soc_card rockchip_sound_card = {
.name = "rk3399-gru-sound",
.owner = THIS_MODULE,
@@ -252,6 +295,7 @@ static struct snd_soc_card rockchip_sound_card = {
};

enum {
+ DAILINK_CDNDP,
DAILINK_DA7219,
DAILINK_MAX98357A,
DAILINK_RT5514,
@@ -259,6 +303,7 @@ enum {
};

static const char * const dailink_compat[] = {
+ [DAILINK_CDNDP] = "rockchip,rk3399-cdn-dp",
[DAILINK_DA7219] = "dlg,da7219",
[DAILINK_MAX98357A] = "maxim,max98357a",
[DAILINK_RT5514] = "realtek,rt5514-i2c",
@@ -266,6 +311,14 @@ static const char * const dailink_compat[] = {
};

static const struct snd_soc_dai_link rockchip_dais[] = {
+ [DAILINK_CDNDP] = {
+ .name = "DP",
+ .stream_name = "DP PCM",
+ .codec_dai_name = "i2s-hifi",
+ .ops = &rockchip_sound_cdndp_ops,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ },
[DAILINK_DA7219] = {
.name = "DA7219",
.stream_name = "DA7219 PCM",
@@ -316,7 +369,7 @@ static int rockchip_sound_codec_node_match(struct device_node *np_codec)
static int rockchip_sound_of_parse_dais(struct device *dev,
struct snd_soc_card *card)
{
- struct device_node *np_cpu;
+ struct device_node *np_cpu, *np_cpu0, *np_cpu1;
struct device_node *np_codec;
struct snd_soc_dai_link *dai;
int i, index;
@@ -326,7 +379,8 @@ static int rockchip_sound_of_parse_dais(struct device *dev,
if (!card->dai_link)
return -ENOMEM;

- np_cpu = of_parse_phandle(dev->of_node, "rockchip,cpu", 0);
+ np_cpu0 = of_parse_phandle(dev->of_node, "rockchip,cpu", 0);
+ np_cpu1 = of_parse_phandle(dev->of_node, "rockchip,cpu", 1);

card->num_links = 0;
for (i = 0; i < ARRAY_SIZE(rockchip_dais); i++) {
@@ -342,6 +396,7 @@ static int rockchip_sound_of_parse_dais(struct device *dev,
if (index < 0)
continue;

+ np_cpu = (index == DAILINK_CDNDP) ? np_cpu1 : np_cpu0;
if (!np_cpu) {
dev_err(dev, "Missing 'rockchip,cpu' for %s\n",
rockchip_dais[index].name);
--
2.11.0

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