[linux-sunxi] [PATCH v2 05/12] ASoC: sun4i-codec: Add support for V3s codec

Chen-Yu Tsai
2017-03-06T04:15:04Z

On Mon, Mar 6, 2017 at 12:05 PM, Chen-Yu Tsai <wens@csie.org> wrote:
> On Sun, Mar 5, 2017 at 9:37 PM, Icenowy Zheng <icenowy@aosc.xyz> wrote:
>> The codec in the V3s is similar to the one found on the A31. One key
>> difference is the analog path controls are routed through the PRCM
>> block. This is supported by the sun8i-codec-analog driver, and tied
>> into this codec driver with the audio card's aux_dev.
>>
>> In addition, the V3s does not have LINEIN, LINEOUT, MBIAS and MIC2,
>> MIC3, and the FIFO related registers are like H3.
>>
>> Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
>> ---
>> .../devicetree/bindings/sound/sun4i-codec.txt | 11 ++--
>> sound/soc/sunxi/sun4i-codec.c | 59 ++++++++++++++++++++++
>> 2 files changed, 66 insertions(+), 4 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
>> index 3863531d1e6d..2d4e10deb6f4 100644
>> --- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt
>> +++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
>> @@ -7,6 +7,7 @@ Required properties:
>> - "allwinner,sun7i-a20-codec"
>> - "allwinner,sun8i-a23-codec"
>> - "allwinner,sun8i-h3-codec"
>> + - "allwinner,sun8i-v3s-codec"
>> - reg: must contain the registers location and length
>> - interrupts: must contain the codec interrupt
>> - dmas: DMA channels for tx and rx dma. See the DMA client binding,
>> @@ -25,6 +26,7 @@ Required properties for the following compatibles:
>> - "allwinner,sun6i-a31-codec"
>> - "allwinner,sun8i-a23-codec"
>> - "allwinner,sun8i-h3-codec"
>> + - "allwinner,sun8i-v3s-codec"
>> - resets: phandle to the reset control for this device
>> - allwinner,audio-routing: A list of the connections between audio components.
>> Each entry is a pair of strings, the first being the
>> @@ -34,15 +36,15 @@ Required properties for the following compatibles:
>> Audio pins on the SoC:
>> "HP"
>> "HPCOM"
>> - "LINEIN"
>> - "LINEOUT" (not on sun8i-a23)
>> + "LINEIN" (not on sun8i-v3s)
>> + "LINEOUT" (not on sun8i-a23 or sun8i-v3s)
>> "MIC1"
>> - "MIC2"
>> + "MIC2" (not on sun8i-v3s)
>> "MIC3" (sun6i-a31 only)
>>
>> Microphone biases from the SoC:
>> "HBIAS"
>> - "MBIAS"
>> + "MBIAS" (not on sun8i-v3s)
>>
>> Board connectors:
>> "Headphone"
>> @@ -55,6 +57,7 @@ Required properties for the following compatibles:
>> Required properties for the following compatibles:
>> - "allwinner,sun8i-a23-codec"
>> - "allwinner,sun8i-h3-codec"
>> + - "allwinner,sun8i-v3s-codec"
>> - allwinner,codec-analog-controls: A phandle to the codec analog controls
>> block in the PRCM.
>>
>> diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
>> index c3aab10fa085..7f1b1aa95e0b 100644
>> --- a/sound/soc/sunxi/sun4i-codec.c
>> +++ b/sound/soc/sunxi/sun4i-codec.c
>> @@ -1339,6 +1339,44 @@ static struct snd_soc_card *sun8i_h3_codec_create_card(struct device *dev)
>> return card;
>> };
>>
>> +static struct snd_soc_card *sun8i_v3s_codec_create_card(struct device *dev)
>> +{
>> + struct snd_soc_card *card;
>> + int ret;
>> +
>> + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
>> + if (!card)
>> + return ERR_PTR(-ENOMEM);
>> +
>> + aux_dev.codec_of_node = of_parse_phandle(dev->of_node,
>> + "allwinner,codec-analog-controls",
>> + 0);
>> + if (!aux_dev.codec_of_node) {
>> + dev_err(dev, "Can't find analog controls for codec.\n");
>> + return ERR_PTR(-EINVAL);
>> + };
>> +
>> + card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
>> + if (!card->dai_link)
>> + return ERR_PTR(-ENOMEM);
>> +
>> + card->dev = dev;
>> + card->name = "V3s Audio Codec";
>> + card->dapm_widgets = sun6i_codec_card_dapm_widgets;
>> + card->num_dapm_widgets = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
>> + card->dapm_routes = sun8i_codec_card_routes;
>> + card->num_dapm_routes = ARRAY_SIZE(sun8i_codec_card_routes);
>> + card->aux_dev = &aux_dev;
>> + card->num_aux_devs = 1;
>> + card->fully_routed = true;
>> +
>> + ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
>> + if (ret)
>> + dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
>> +
>> + return card;
>> +};
>> +
>> static const struct regmap_config sun4i_codec_regmap_config = {
>> .reg_bits = 32,
>> .reg_stride = 4,
>> @@ -1374,6 +1412,13 @@ static const struct regmap_config sun8i_h3_codec_regmap_config = {
>> .max_register = SUN8I_H3_CODEC_ADC_DBG,
>> };
>>
>> +static const struct regmap_config sun8i_v3s_codec_regmap_config = {
>> + .reg_bits = 32,
>> + .reg_stride = 4,
>> + .val_bits = 32,
>> + .max_register = SUN6I_CODEC_HMIC_DATA,
>
> The last defined register for the non digital audio processing parts is
> SUN8I_H3_CODEC_ADC_DBG.
>
> Or if you want you could include everything, which goes up to 0x400.

Correction, it goes up to 0x2bc. 0x400 is the register for controlling
the analog bits.

ChenYu

>> +};
>> +
>> struct sun4i_codec_quirks {
>> const struct regmap_config *regmap_config;
>> const struct snd_soc_codec_driver *codec;
>> @@ -1422,6 +1467,16 @@ static const struct sun4i_codec_quirks sun8i_a23_codec_quirks = {
>> .has_reset = true,
>> };
>>
>> +static const struct sun4i_codec_quirks sun8i_v3s_codec_quirks = {
>> + .regmap_config = &sun8i_v3s_codec_regmap_config,
>> + .codec = &sun8i_a23_codec_codec,
>
> Please leave a note, like the H3, that this should be changed if digital audio
> processing is added.
>
> Regards
> ChenYu
>
>> + .create_card = sun8i_v3s_codec_create_card,
>> + .reg_adc_fifoc = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
>> + .reg_dac_txdata = SUN8I_H3_CODEC_DAC_TXDATA,
>> + .reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
>> + .has_reset = true,
>> +};
>> +
>> static const struct sun4i_codec_quirks sun8i_h3_codec_quirks = {
>> .regmap_config = &sun8i_h3_codec_regmap_config,
>> /*
>> @@ -1458,6 +1513,10 @@ static const struct of_device_id sun4i_codec_of_match[] = {
>> .compatible = "allwinner,sun8i-h3-codec",
>> .data = &sun8i_h3_codec_quirks,
>> },
>> + {
>> + .compatible = "allwinner,sun8i-v3s-codec",
>> + .data = &sun8i_v3s_codec_quirks,
>> + },
>> {}
>> };
>> MODULE_DEVICE_TABLE(of, sun4i_codec_of_match);
>> --
>> 2.11.1
>>
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