linux-kernel - Re: soundwire: device drivers for PC based hardware

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Date:   Wed, 1 Jun 2022 12:17:57 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Muni Sekhar <munisekharrms@...il.com>, vkoul@...nel.org,
        sanyog.r.kale@...el.com, alsa-devel <alsa-devel@...a-project.org>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: soundwire: device drivers for PC based hardware



On 5/31/22 10:17, Muni Sekhar wrote:
> Hi all,
> 
> I am looking for the soundwire device drivers which run on x86 CPU for
> PC based platforms.
> 
> linux/drivers/soundwire at master · torvalds/linux · GitHub
> 
> Can the above mentioned mainline tree drivers can be used for this purpose?
> 
> config SOUNDWIRE_INTEL
> depends on ACPI && SND_SOC
> 
> config SOUNDWIRE_QCOM
> depends on SND_SOC
> 
> As per the Kconfig file, both the Intel and Qualcomm SoundWire Master
> driver depend on SND_SOC, does it mean it is only possible to run on
> SoC CPU(Arm chipsets)?

Here's what you need in your .config to use SoundWire on x86-based
hardware. Today this includes mostly Dell platforms, HP x360 convertible
laptops and Intel 'bishop canyon' NUC laptops.

CONFIG_REGMAP_SOUNDWIRE=m

CONFIG_REGMAP_SOUNDWIRE_MBQ=m

CONFIG_SND_INTEL_SOUNDWIRE_ACPI=m

CONFIG_SND_SOC_INTEL_SOUNDWIRE_SOF_MACH=m

CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE_LINK_BASELINE=m

CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE=m

CONFIG_SOUNDWIRE=m

CONFIG_SOUNDWIRE_CADENCE=m

CONFIG_SOUNDWIRE_INTEL=m

# CONFIG_SOUNDWIRE_QCOM is not set

CONFIG_SOUNDWIRE_GENERIC_ALLOCATION=m


I think you can get everything if you select these 3 high-level ones:
CONFIG_SOUNDWIRE
CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE
CONFIG_SND_SOC_INTEL_SOUNDWIRE_SOF_MACH