Add Machine driver support for ALC5682I-VS codec.

Signed-off-by: Judy Hsiao judyhsiao@chromium.org ---

Changes from v1[1]: - Fix nits and use SND_SOC_DAIFMT_CBC_CFS. - Fix return value when snd_soc_dai_set_sysclk failed.

[1]: https://patchwork.kernel.org/project/alsa-devel/patch/20220330084519.3863856...

sound/soc/qcom/Kconfig | 2 + sound/soc/qcom/sc7280.c | 107 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 109 insertions(+)

diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index 28d0dfb4033c..750653404ba3 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -197,6 +197,8 @@ config SND_SOC_SC7280 select SND_SOC_LPASS_MACRO_COMMON imply SND_SOC_LPASS_RX_MACRO imply SND_SOC_LPASS_TX_MACRO + select SND_SOC_RT5682_I2C + select SND_SOC_RT5682S help Add support for audio on Qualcomm Technologies Inc. SC7280 SoC-based systems. diff --git a/sound/soc/qcom/sc7280.c b/sound/soc/qcom/sc7280.c index bd0bf9c8cb28..8c0bbae490dd 100644 --- a/sound/soc/qcom/sc7280.c +++ b/sound/soc/qcom/sc7280.c @@ -12,14 +12,21 @@ #include <sound/jack.h> #include <sound/pcm.h> #include <sound/soc.h> +#include <sound/rt5682s.h> #include <linux/soundwire/sdw.h>

+#include "../codecs/rt5682.h" +#include "../codecs/rt5682s.h" #include "common.h" #include "lpass.h"

+#define DEFAULT_MCLK_RATE 19200000 +#define RT5682_PLL1_FREQ (48000 * 512) + struct sc7280_snd_data { struct snd_soc_card card; struct sdw_stream_runtime *sruntime[LPASS_MAX_PORTS]; + u32 pri_mi2s_clk_count; struct snd_soc_jack hs_jack; struct snd_soc_jack hdmi_jack; bool jack_setup; @@ -69,6 +76,7 @@ static int sc7280_headset_init(struct snd_soc_pcm_runtime *rtd) pdata->jack_setup = true; } switch (cpu_dai->id) { + case MI2S_PRIMARY: case LPASS_CDC_DMA_RX0: case LPASS_CDC_DMA_TX3: for_each_rtd_codec_dais(rtd, i, codec_dai) { @@ -110,11 +118,51 @@ static int sc7280_hdmi_init(struct snd_soc_pcm_runtime *rtd) return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL); }

+static int sc7280_rt5682_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_card *card = rtd->card; + struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card); + int ret; + + if (++data->pri_mi2s_clk_count == 1) { + snd_soc_dai_set_sysclk(cpu_dai, + LPASS_MCLK0, + DEFAULT_MCLK_RATE, + SNDRV_PCM_STREAM_PLAYBACK); + } + snd_soc_dai_set_fmt(codec_dai, + SND_SOC_DAIFMT_CBC_CFC | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_I2S); + + ret = snd_soc_dai_set_pll(codec_dai, RT5682S_PLL1, RT5682S_PLL_S_BCLK1, + 1536000, RT5682_PLL1_FREQ); + if (ret) { + dev_err(rtd->dev, "can't set codec pll: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, RT5682S_SCLK_S_PLL1, + RT5682_PLL1_FREQ, + SND_SOC_CLOCK_IN); + + if (ret) { + dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", + ret); + return ret; + } + + return 0; +} + static int sc7280_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

switch (cpu_dai->id) { + case MI2S_PRIMARY: case LPASS_CDC_DMA_TX3: return sc7280_headset_init(rtd); case LPASS_CDC_DMA_RX0: @@ -227,10 +275,66 @@ static int sc7280_snd_hw_free(struct snd_pcm_substream *substream) return 0; }

+static void sc7280_snd_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + + switch (cpu_dai->id) { + case MI2S_PRIMARY: + if (--data->pri_mi2s_clk_count == 0) { + snd_soc_dai_set_sysclk(cpu_dai, + LPASS_MCLK0, + 0, + SNDRV_PCM_STREAM_PLAYBACK); + } + break; + case MI2S_SECONDARY: + break; + case LPASS_DP_RX: + break; + default: + dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, + cpu_dai->id); + break; + } +} + +static int sc7280_snd_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + int ret = 0; + + switch (cpu_dai->id) { + case MI2S_PRIMARY: + ret = sc7280_rt5682_init(rtd); + break; + case MI2S_SECONDARY: + break; + case LPASS_DP_RX: + break; + default: + dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, + cpu_dai->id); + return -EINVAL; + } + return ret; +} + static const struct snd_soc_ops sc7280_ops = { + .startup = sc7280_snd_startup, .hw_params = sc7280_snd_hw_params, .hw_free = sc7280_snd_hw_free, .prepare = sc7280_snd_prepare, + .shutdown = sc7280_snd_shutdown, +}; + +static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), };

static int sc7280_snd_platform_probe(struct platform_device *pdev) @@ -252,6 +356,9 @@ static int sc7280_snd_platform_probe(struct platform_device *pdev) card->driver_name = "SC7280"; card->dev = dev;

+ card->dapm_widgets = sc7280_snd_widgets; + card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets); + ret = qcom_snd_parse_of(card); if (ret) return ret;