Re: [PATCH 12/25] ASoC: meson: t9015: add support for A1 SoC family

From: Jerome Brunet
Date: Mon Mar 18 2024 - 06:55:02 EST


On Fri 15 Mar 2024 at 02:21, Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx> wrote:

> A1's internal codec is very close to t9015. The main difference, that it
> has ADC. This commit introduces support for capturing from it.

This is mis-leading.

It does not look like the change is A1 specific but rather a extension
of the support for t9015. It also mixes several different topics like line
configuration, capture support, etc ...

Again, the t9015 changes should be a separated series from the rest, and
there should be one patch per topic.

As Mark, if something is meant to be configured based on the HW layout,
then there a good change a kcontrol is not appropriate, and this should
rather be part of the platform description, like DT.

It was also suggested here:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/soc/meson/t9015.c?h=v6.8#n298

>
> Signed-off-by: Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx>
> ---
> sound/soc/meson/t9015.c | 259 ++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 259 insertions(+)
>
> diff --git a/sound/soc/meson/t9015.c b/sound/soc/meson/t9015.c
> index 48f6767bd858..365955bfeb78 100644
> --- a/sound/soc/meson/t9015.c
> +++ b/sound/soc/meson/t9015.c
> @@ -19,16 +19,33 @@
> #define LOLP_EN 3
> #define DACR_EN 4
> #define DACL_EN 5
> +#define ADCR_EN 6
> +#define ADCL_EN 7
> +#define PGAR_ZCD_EN 8
> +#define PGAL_ZCD_EN 9
> +#define PGAR_EN 10
> +#define PGAL_EN 11
> +#define ADCR_INV 16
> +#define ADCL_INV 17
> +#define ADCR_SRC 18
> +#define ADCL_SRC 19
> #define DACR_INV 20
> #define DACL_INV 21
> #define DACR_SRC 22
> #define DACL_SRC 23
> +#define ADC_DEM_EN 26
> +#define ADC_FILTER_MODE 28
> +#define ADC_FILTER_EN 29
> #define REFP_BUF_EN BIT(12)
> #define BIAS_CURRENT_EN BIT(13)
> #define VMID_GEN_FAST BIT(14)
> #define VMID_GEN_EN BIT(15)
> #define I2S_MODE BIT(30)
> #define VOL_CTRL0 0x04
> +#define PGAR_VC 0
> +#define PGAL_VC 8
> +#define ADCR_VC 16
> +#define ADCL_VC 24
> #define GAIN_H 31
> #define GAIN_L 23
> #define VOL_CTRL1 0x08
> @@ -46,6 +63,28 @@
> #define LOLN_POL 8
> #define LOLP_POL 12
> #define POWER_CFG 0x10
> +#define LINEIN_CFG 0x14
> +#define MICBIAS_LEVEL 0
> +#define MICBIAS_EN 3
> +#define PGAR_CTVMN 8
> +#define PGAR_CTVMP 9
> +#define PGAL_CTVMN 10
> +#define PGAL_CTVMP 11
> +#define PGAR_CTVIN 12
> +#define PGAR_CTVIP 13
> +#define PGAL_CTVIN 14
> +#define PGAL_CTVIP 15
> +
> +#define PGAR_MASK (BIT(PGAR_CTVMP) | BIT(PGAR_CTVMN) | \
> + BIT(PGAR_CTVIP) | BIT(PGAR_CTVIN))
> +#define PGAR_DIFF (BIT(PGAR_CTVIP) | BIT(PGAR_CTVIN))
> +#define PGAR_POSITIVE (BIT(PGAR_CTVIP) | BIT(PGAR_CTVMN))
> +#define PGAR_NEGATIVE (BIT(PGAR_CTVIN) | BIT(PGAR_CTVMP))
> +#define PGAL_MASK (BIT(PGAL_CTVMP) | BIT(PGAL_CTVMN) | \
> + BIT(PGAL_CTVIP) | BIT(PGAL_CTVIN))
> +#define PGAL_DIFF (BIT(PGAL_CTVIP) | BIT(PGAL_CTVIN))
> +#define PGAL_POSITIVE (BIT(PGAL_CTVIP) | BIT(PGAL_CTVMN))
> +#define PGAL_NEGATIVE (BIT(PGAL_CTVIN) | BIT(PGAL_CTVMP))
>
> struct t9015 {
> struct regulator *avdd;
> @@ -103,6 +142,31 @@ static struct snd_soc_dai_driver t9015_dai = {
> .ops = &t9015_dai_ops,
> };
>
> +static struct snd_soc_dai_driver a1_t9015_dai = {
> + .name = "t9015-hifi",
> + .playback = {
> + .stream_name = "Playback",
> + .channels_min = 1,
> + .channels_max = 2,
> + .rates = SNDRV_PCM_RATE_8000_96000,
> + .formats = (SNDRV_PCM_FMTBIT_S8 |
> + SNDRV_PCM_FMTBIT_S16_LE |
> + SNDRV_PCM_FMTBIT_S20_LE |
> + SNDRV_PCM_FMTBIT_S24_LE),
> + },
> + .capture = {
> + .stream_name = "Capture",
> + .channels_min = 1,
> + .channels_max = 2,
> + .rates = SNDRV_PCM_RATE_8000_96000,
> + .formats = (SNDRV_PCM_FMTBIT_S8 |
> + SNDRV_PCM_FMTBIT_S16_LE |
> + SNDRV_PCM_FMTBIT_S20_LE |
> + SNDRV_PCM_FMTBIT_S24_LE),
> + },
> + .ops = &t9015_dai_ops,
> +};
> +
> static const DECLARE_TLV_DB_MINMAX_MUTE(dac_vol_tlv, -9525, 0);
>
> static const char * const ramp_rate_txt[] = { "Fast", "Slow" };
> @@ -179,6 +243,166 @@ static const struct snd_soc_dapm_route t9015_dapm_routes[] = {
> { "LOLP", NULL, "Left+ Driver", },
> };
>
> +static const char * const a1_right_driver_txt[] = { "None", "Right DAC",
> + "Left DAC Inverted" };
> +static const unsigned int a1_right_driver_values[] = { 0, 2, 4 };
> +
> +static const char * const a1_left_driver_txt[] = { "None", "Left DAC",
> + "Right DAC Inverted" };
> +static const unsigned int a1_left_driver_values[] = { 0, 2, 4 };
> +
> +static SOC_VALUE_ENUM_SINGLE_DECL(a1_right_driver, LINEOUT_CFG, 12, 0x7,
> + a1_right_driver_txt, a1_right_driver_values);
> +static SOC_VALUE_ENUM_SINGLE_DECL(a1_left_driver, LINEOUT_CFG, 4, 0x7,
> + a1_left_driver_txt, a1_left_driver_values);
> +
> +static const struct snd_kcontrol_new a1_right_driver_mux =
> + SOC_DAPM_ENUM("Right Driver+ Source", a1_right_driver);
> +static const struct snd_kcontrol_new a1_left_driver_mux =
> + SOC_DAPM_ENUM("Left Driver+ Source", a1_left_driver);
> +
> +static const DECLARE_TLV_DB_MINMAX_MUTE(a1_adc_vol_tlv, -29625, 0);
> +static const DECLARE_TLV_DB_MINMAX_MUTE(a1_adc_pga_vol_tlv, -1200, 0);
> +
> +static const char * const a1_adc_right_txt[] = { "Right", "Left" };
> +static SOC_ENUM_SINGLE_DECL(a1_adc_right, BLOCK_EN, ADCR_SRC, a1_adc_right_txt);
> +
> +static const char * const a1_adc_left_txt[] = { "Left", "Right" };
> +static SOC_ENUM_SINGLE_DECL(a1_adc_left, BLOCK_EN, ADCL_SRC, a1_adc_left_txt);
> +
> +static const struct snd_kcontrol_new a1_adc_right_mux =
> + SOC_DAPM_ENUM("ADC Right Source", a1_adc_right);
> +static const struct snd_kcontrol_new a1_adc_left_mux =
> + SOC_DAPM_ENUM("ADC Left Source", a1_adc_left);
> +
> +static const char * const a1_adc_filter_mode_txt[] = { "Voice", "HiFi"};
> +static SOC_ENUM_SINGLE_DECL(a1_adc_filter_mode, BLOCK_EN, ADC_FILTER_MODE,
> + a1_adc_filter_mode_txt);
> +
> +static const char * const a1_adc_mic_bias_level_txt[] = { "2.0V", "2.1V",
> + "2.3V", "2.5V", "2.8V" };
> +static const unsigned int a1_adc_mic_bias_level_values[] = { 0, 1, 2, 3, 7 };
> +static SOC_VALUE_ENUM_SINGLE_DECL(a1_adc_mic_bias_level,
> + LINEIN_CFG, MICBIAS_LEVEL, 0x7,
> + a1_adc_mic_bias_level_txt,
> + a1_adc_mic_bias_level_values);
> +
> +static const char * const a1_adc_pga_txt[] = { "None", "Differential",
> + "Positive", "Negative" };
> +static const unsigned int a1_adc_pga_right_values[] = { 0, PGAR_DIFF,
> + PGAR_POSITIVE, PGAR_NEGATIVE };
> +static const unsigned int a1_adc_pga_left_values[] = { 0, PGAL_DIFF,
> + PGAL_POSITIVE, PGAL_NEGATIVE };
> +
> +static SOC_VALUE_ENUM_SINGLE_DECL(a1_adc_pga_right, LINEIN_CFG, 0, PGAR_MASK,
> + a1_adc_pga_txt, a1_adc_pga_right_values);
> +static SOC_VALUE_ENUM_SINGLE_DECL(a1_adc_pga_left, LINEIN_CFG, 0, PGAL_MASK,
> + a1_adc_pga_txt, a1_adc_pga_left_values);
> +
> +static const struct snd_kcontrol_new a1_adc_pga_right_mux =
> + SOC_DAPM_ENUM("ADC PGA Right Source", a1_adc_pga_right);
> +static const struct snd_kcontrol_new a1_adc_pga_left_mux =
> + SOC_DAPM_ENUM("ADC PGA Left Source", a1_adc_pga_left);
> +
> +static const struct snd_kcontrol_new a1_t9015_snd_controls[] = {
> + /* Volume Controls */
> + SOC_ENUM("Playback Channel Mode", mono_enum),
> + SOC_SINGLE("Playback Switch", VOL_CTRL1, DAC_SOFT_MUTE, 1, 1),
> + SOC_DOUBLE_TLV("Playback Volume", VOL_CTRL1, DACL_VC, DACR_VC,
> + 0xff, 0, dac_vol_tlv),
> +
> + /* Ramp Controls */
> + SOC_ENUM("Ramp Rate", ramp_rate_enum),
> + SOC_SINGLE("Volume Ramp Switch", VOL_CTRL1, VC_RAMP_MODE, 1, 0),
> + SOC_SINGLE("Mute Ramp Switch", VOL_CTRL1, MUTE_MODE, 1, 0),
> + SOC_SINGLE("Unmute Ramp Switch", VOL_CTRL1, UNMUTE_MODE, 1, 0),
> +
> + /* ADC Controls */
> + SOC_DOUBLE_TLV("ADC Volume", VOL_CTRL0, ADCL_VC, ADCR_VC,
> + 0x7f, 0, a1_adc_vol_tlv),
> + SOC_SINGLE("ADC Filter Switch", BLOCK_EN, ADC_FILTER_EN, 1, 0),
> + SOC_ENUM("ADC Filter Mode", a1_adc_filter_mode),
> + SOC_SINGLE("ADC Mic Bias Switch", LINEIN_CFG, MICBIAS_EN, 1, 0),
> + SOC_ENUM("ADC Mic Bias Level", a1_adc_mic_bias_level),
> + SOC_SINGLE("ADC DEM Switch", BLOCK_EN, ADC_DEM_EN, 1, 0),
> + SOC_DOUBLE_TLV("ADC PGA Volume", VOL_CTRL0, PGAR_VC, PGAL_VC,
> + 0x1f, 0, a1_adc_pga_vol_tlv),
> + SOC_DOUBLE("ADC PGA Zero Cross-detection Switch", BLOCK_EN,
> + PGAL_ZCD_EN, PGAR_ZCD_EN, 1, 0),
> +};
> +
> +static const struct snd_soc_dapm_widget a1_t9015_dapm_widgets[] = {
> + SND_SOC_DAPM_AIF_IN("Right IN", NULL, 0, SND_SOC_NOPM, 0, 0),
> + SND_SOC_DAPM_AIF_IN("Left IN", NULL, 0, SND_SOC_NOPM, 0, 0),
> + SND_SOC_DAPM_MUX("Right DAC Sel", SND_SOC_NOPM, 0, 0,
> + &t9015_right_dac_mux),
> + SND_SOC_DAPM_MUX("Left DAC Sel", SND_SOC_NOPM, 0, 0,
> + &t9015_left_dac_mux),
> + SND_SOC_DAPM_DAC("Right DAC", NULL, BLOCK_EN, DACR_EN, 0),
> + SND_SOC_DAPM_DAC("Left DAC", NULL, BLOCK_EN, DACL_EN, 0),
> + SND_SOC_DAPM_MUX("Right+ Driver Sel", SND_SOC_NOPM, 0, 0,
> + &a1_right_driver_mux),
> + SND_SOC_DAPM_MUX("Left+ Driver Sel", SND_SOC_NOPM, 0, 0,
> + &a1_left_driver_mux),
> + SND_SOC_DAPM_OUT_DRV("Right+ Driver", BLOCK_EN, LORP_EN, 0, NULL, 0),
> + SND_SOC_DAPM_OUT_DRV("Left+ Driver", BLOCK_EN, LOLP_EN, 0, NULL, 0),
> + SND_SOC_DAPM_OUTPUT("LORP"),
> + SND_SOC_DAPM_OUTPUT("LOLP"),
> +
> + SND_SOC_DAPM_INPUT("ADC IN Right"),
> + SND_SOC_DAPM_INPUT("ADC IN Left"),
> + SND_SOC_DAPM_MUX("ADC PGA Right Sel", SND_SOC_NOPM, 0, 0,
> + &a1_adc_pga_right_mux),
> + SND_SOC_DAPM_MUX("ADC PGA Left Sel", SND_SOC_NOPM, 0, 0,
> + &a1_adc_pga_left_mux),
> + SND_SOC_DAPM_PGA("ADC PGA Right", BLOCK_EN, PGAR_EN, 0, NULL, 0),
> + SND_SOC_DAPM_PGA("ADC PGA Left", BLOCK_EN, PGAL_EN, 0, NULL, 0),
> + SND_SOC_DAPM_ADC("ADC Right", NULL, BLOCK_EN, ADCR_EN, 0),
> + SND_SOC_DAPM_ADC("ADC Left", NULL, BLOCK_EN, ADCL_EN, 0),
> + SND_SOC_DAPM_MUX("ADC Right Sel", SND_SOC_NOPM, 0, 0, &a1_adc_right_mux),
> + SND_SOC_DAPM_MUX("ADC Left Sel", SND_SOC_NOPM, 0, 0, &a1_adc_left_mux),
> + SND_SOC_DAPM_AIF_OUT("ADC OUT Right", NULL, 0, SND_SOC_NOPM, 0, 0),
> + SND_SOC_DAPM_AIF_OUT("ADC OUT Left", NULL, 0, SND_SOC_NOPM, 0, 0),
> +};
> +
> +static const struct snd_soc_dapm_route a1_t9015_dapm_routes[] = {
> + { "Right IN", NULL, "Playback" },
> + { "Left IN", NULL, "Playback" },
> + { "Right DAC Sel", "Right", "Right IN" },
> + { "Right DAC Sel", "Left", "Left IN" },
> + { "Left DAC Sel", "Right", "Right IN" },
> + { "Left DAC Sel", "Left", "Left IN" },
> + { "Right DAC", NULL, "Right DAC Sel" },
> + { "Left DAC", NULL, "Left DAC Sel" },
> + { "Right+ Driver Sel", "Right DAC", "Right DAC" },
> + { "Right+ Driver Sel", "Left DAC Inverted", "Right DAC" },
> + { "Left+ Driver Sel", "Left DAC", "Left DAC" },
> + { "Left+ Driver Sel", "Right DAC Inverted", "Left DAC" },
> + { "Right+ Driver", NULL, "Right+ Driver Sel" },
> + { "Left+ Driver", NULL, "Left+ Driver Sel" },
> + { "LORP", NULL, "Right+ Driver", },
> + { "LOLP", NULL, "Left+ Driver", },
> +
> + { "ADC PGA Right Sel", "Differential", "ADC IN Right" },
> + { "ADC PGA Right Sel", "Positive", "ADC IN Right" },
> + { "ADC PGA Right Sel", "Negative", "ADC IN Right" },
> + { "ADC PGA Left Sel", "Differential", "ADC IN Left" },
> + { "ADC PGA Left Sel", "Positive", "ADC IN Left" },
> + { "ADC PGA Left Sel", "Negative", "ADC IN Left" },
> + { "ADC PGA Right", NULL, "ADC PGA Right Sel" },
> + { "ADC PGA Left", NULL, "ADC PGA Left Sel" },
> + { "ADC Right", NULL, "ADC PGA Right" },
> + { "ADC Left", NULL, "ADC PGA Left" },
> + { "ADC Right Sel", "Right", "ADC Right" },
> + { "ADC Right Sel", "Left", "ADC Left" },
> + { "ADC Left Sel", "Right", "ADC Right" },
> + { "ADC Left Sel", "Left", "ADC Left" },
> + { "ADC OUT Right", NULL, "ADC Right Sel" },
> + { "ADC OUT Left", NULL, "ADC Left Sel" },
> + { "Capture", NULL, "ADC OUT Right" },
> + { "Capture", NULL, "ADC OUT Left" },
> +};
> +
> static int t9015_set_bias_level(struct snd_soc_component *component,
> enum snd_soc_bias_level level)
> {
> @@ -241,6 +465,18 @@ static int t9015_component_probe(struct snd_soc_component *component)
> return 0;
> }
>
> +static int a1_t9015_component_probe(struct snd_soc_component *component)
> +{
> + /*
> + * This configuration was stealed from original Amlogic's driver to
> + * reproduce the behavior of the driver more accurately. However, it is
> + * not known for certain what it actually affects.
> + */
> + snd_soc_component_write(component, POWER_CFG, 0x00010000);
> +
> + return 0;
> +}
> +
> static const struct snd_soc_component_driver t9015_codec_driver = {
> .probe = t9015_component_probe,
> .set_bias_level = t9015_set_bias_level,
> @@ -254,6 +490,19 @@ static const struct snd_soc_component_driver t9015_codec_driver = {
> .endianness = 1,
> };
>
> +static const struct snd_soc_component_driver a1_t9015_codec_driver = {
> + .probe = a1_t9015_component_probe,
> + .set_bias_level = t9015_set_bias_level,
> + .controls = a1_t9015_snd_controls,
> + .num_controls = ARRAY_SIZE(a1_t9015_snd_controls),
> + .dapm_widgets = a1_t9015_dapm_widgets,
> + .num_dapm_widgets = ARRAY_SIZE(a1_t9015_dapm_widgets),
> + .dapm_routes = a1_t9015_dapm_routes,
> + .num_dapm_routes = ARRAY_SIZE(a1_t9015_dapm_routes),
> + .suspend_bias_off = 1,
> + .endianness = 1,
> +};
> +
> static int t9015_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> @@ -315,11 +564,21 @@ static const struct t9015_match_data t9015_match_data = {
> .max_register = POWER_CFG,
> };
>
> +static const struct t9015_match_data a1_t9015_match_data = {
> + .component_drv = &a1_t9015_codec_driver,
> + .dai_drv = &a1_t9015_dai,
> + .max_register = LINEIN_CFG,
> +};
> +
> static const struct of_device_id t9015_ids[] __maybe_unused = {
> {
> .compatible = "amlogic,t9015",
> .data = &t9015_match_data,
> },
> + {
> + .compatible = "amlogic,t9015-a1",
> + .data = &a1_t9015_match_data,
> + },
> { }
> };
> MODULE_DEVICE_TABLE(of, t9015_ids);


--
Jerome