[PATCH v4 03/17] ASoC: Intel: Introduce AVS driver

[Pierre-Louis Bossart]

> diff --git a/sound/soc/intel/avs/Makefile b/sound/soc/intel/avs/Makefile
> new file mode 100644
> index 000000000000..5f7976a95fe2
> --- /dev/null
> +++ b/sound/soc/intel/avs/Makefile
> @@ -0,0 +1,5 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +
> +snd-soc-avs-objs := dsp.o
> +
> +obj-$(CONFIG_SND_SOC_INTEL_AVS) += snd-soc-avs.o

nit-pick: snd-soc-intel-avs?

avs is not a clear mapping to Intel platforms


> +/*
> + * struct avs_dev - Intel HD-Audio driver data
> + *
> + * @dev: PCI device
> + * @dsp_ba: DSP bar address

not sure it's only limited to DSP, is it?

> + * @spec: platform-specific descriptor
> + */
> +struct avs_dev {
> +	struct hda_bus base;
> +	struct device *dev;
> +
> +	void __iomem *dsp_ba;
> +	const struct avs_spec *spec;
> +};

> +int avs_dsp_core_reset(struct avs_dev *adev, u32 core_mask, bool reset)
> +{
> +	u32 value, mask, reg;
> +	int ret;
> +
> +	mask = AVS_ADSPCS_CRST_MASK(core_mask);
> +	value = reset ? mask : 0;
> +
> +	snd_hdac_adsp_updatel(adev, AVS_ADSP_REG_ADSPCS, mask, value);
> +
> +	ret = snd_hdac_adsp_readl_poll(adev, AVS_ADSP_REG_ADSPCS,
> +				       reg, (reg & mask) == value,
> +				       AVS_ADSPCS_INTERVAL_US,
> +				       AVS_ADSPCS_TIMEOUT_US);
> +	if (ret)
> +		dev_err(adev->dev, "core_mask %d %s reset failed: %d\n",
> +			core_mask, reset ? "enter" : "exit", ret);

nit-pick: reset %s "entry" "exit"

> +
> +	return ret;
> +}
> +