[alsa-devel] [PATCH v1 1/2] ASoC: SOF: Add Comet Lake PCI ID

[M R, Sathya Prakash]

-----Original Message-----
From: Pierre-Louis Bossart [mailto:pierre-louis.bossart at linux.intel.com] 
Sent: Tuesday, May 7, 2019 7:11 AM
To: Evan Green <evgreen at chromium.org>; Liam Girdwood <liam.r.girdwood at linux.intel.com>; Mark Brown <broonie at kernel.org>
Cc: M, Naveen <naveen.m at intel.com>; M R, Sathya Prakash <sathya.prakash.m.r at intel.com>; Ben Zhang <benzh at chromium.org>; Rajat Jain <rajatja at chromium.org>; Jaroslav Kysela <perex at perex.cz>; alsa-devel at alsa-project.org; linux-kernel at vger.kernel.org; Takashi Iwai <tiwai at suse.com>; Liam Girdwood <lgirdwood at gmail.com>
Subject: Re: [PATCH v1 1/2] ASoC: SOF: Add Comet Lake PCI ID



On 5/6/19 5:53 PM, Evan Green wrote:
>> Add support for Intel Comet Lake platforms by adding a new Kconfig for 
>> CometLake and the appropriate PCI ID.

>This is odd. I checked internally a few weeks back and the CML PCI ID was 9dc8, same as WHL and CNL, so we did not add a PCI ID on purpose. To the best of my knowledge SOF probes fine on CML and the known issues can be found on the SOF github [1].

The PCI ID change is seen on later production Si versions. The PCI ID is 02c8.

>Care to send the log of sudo lspci -s 0:1f.3 -vn ?

Here you go:
localhost ~ # sudo lspci -s 0:1f.3 -vn
00:1f.3 0401: 8086:02c8
        Subsystem: 8086:7270
        Flags: fast devsel, IRQ 11
        Memory at d1114000 (64-bit, non-prefetchable) [size=16K]
        Memory at d1000000 (64-bit, non-prefetchable) [size=1M]
        Capabilities: [50] Power Management version 3
        Capabilities: [80] Vendor Specific Information: Len=14 <?>
        Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+


[1]
https://github.com/thesofproject/sof/issues?q=is%3Aopen+is%3Aissue+label%3ACML
> 
> Signed-off-by: Evan Green <evgreen at chromium.org>
> ---
> 
>   sound/soc/sof/intel/Kconfig | 16 ++++++++++++++++
>   sound/soc/sof/sof-pci-dev.c |  4 ++++
>   2 files changed, 20 insertions(+)
> 
> diff --git a/sound/soc/sof/intel/Kconfig b/sound/soc/sof/intel/Kconfig 
> index 32ee0fabab92..0b616d025f05 100644
> --- a/sound/soc/sof/intel/Kconfig
> +++ b/sound/soc/sof/intel/Kconfig
> @@ -24,6 +24,7 @@ config SND_SOC_SOF_INTEL_PCI
>   	select SND_SOC_SOF_CANNONLAKE  if SND_SOC_SOF_CANNONLAKE_SUPPORT
>   	select SND_SOC_SOF_COFFEELAKE  if SND_SOC_SOF_COFFEELAKE_SUPPORT
>   	select SND_SOC_SOF_ICELAKE     if SND_SOC_SOF_ICELAKE_SUPPORT
> +	select SND_SOC_SOF_COMETLAKE   if SND_SOC_SOF_COMETLAKE_SUPPORT
>   	help
>   	  This option is not user-selectable but automagically handled by
>   	  'select' statements at a higher level @@ -179,6 +180,21 @@ config 
> SND_SOC_SOF_ICELAKE
>   	  This option is not user-selectable but automagically handled by
>   	  'select' statements at a higher level
>   
> +config SND_SOC_SOF_COMETLAKE
> +	tristate
> +	select SND_SOC_SOF_CANNONLAKE
> +	help
> +	  This option is not user-selectable but automagically handled by
> +	  'select' statements at a higher level
> +
> +config SND_SOC_SOF_COMETLAKE_SUPPORT
> +	bool "SOF support for CometLake"
> +	help
> +	  This adds support for Sound Open Firmware for Intel(R) platforms
> +	  using the Cometlake processors.
> +	  Say Y if you have such a device.
> +	  If unsure select "N".
> +
>   config SND_SOC_SOF_HDA_COMMON
>   	tristate
>   	select SND_SOC_SOF_INTEL_COMMON
> diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c 
> index b778dffb2d25..5f0128337e40 100644
> --- a/sound/soc/sof/sof-pci-dev.c
> +++ b/sound/soc/sof/sof-pci-dev.c
> @@ -353,6 +353,10 @@ static const struct pci_device_id sof_pci_ids[] = {
>   #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
>   	{ PCI_DEVICE(0x8086, 0x34C8),
>   		.driver_data = (unsigned long)&icl_desc},
> +#endif
> +#if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
> +	{ PCI_DEVICE(0x8086, 0x02c8),
> +		.driver_data = (unsigned long)&cnl_desc},
>   #endif
>   	{ 0, }
>   };
>