Re: [PATCH v5 7/7] ASoC: codecs: add Qualcomm Tambora (WCD9378) SDCA codec

[Mark Brown]

On Fri, Sep 25, 2026 at 05:10:48PM +0100, Srinivas Kandagatla wrote:
> Add support for the Qualcomm Tambora (WCD9378) headset codec in SDCA
> mode over SoundWire.  On ARM/DT platforms without ACPI/DisCo firmware
> the SDCA topology and SoundWire port properties are supplied as static
> data through the codec driver.

> +static struct sdca_control entity_fu6_controls[] = {
> +	{ .sel = SDCA_CTL_FU_MUTE, .mode = SDCA_ACCESS_MODE_DUAL,
> +	  .layers = SDCA_ACCESS_LAYER_USER, .cn_list = 0x6, .nbits = 1,
> +	  .type = SDCA_CTL_DATATYPE_ONEBIT,
> +	  .interrupt_position = SDCA_NO_INTERRUPT,
> +	  .has_reset = true, .reset = 1,
> +	  .label = SDCA_CTL_MUTE_NAME },
> +	{ .sel = SDCA_CTL_FU_CHANNEL_VOLUME, .mode = SDCA_ACCESS_MODE_DUAL,
> +	  .layers = SDCA_ACCESS_LAYER_USER, .cn_list = 0x6, .nbits = 16,
> +	  .type = SDCA_CTL_DATATYPE_Q7P8DB,
> +	  .range = { .cols = SDCA_VOLUME_LINEAR_NCOLS, .rows = 1,
> +		     .data = range_fu6_vol_data },
> +	  .interrupt_position = SDCA_NO_INTERRUPT,
> +	  .label = SDCA_CTL_CHANNEL_VOLUME_NAME },
> +};

Why do only these have nbits and type?

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