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

From: Pierre-Louis Bossart
Date: Tue May 07 2019 - 09:38:16 EST




On 5/6/19 10:34 PM, M R, Sathya Prakash wrote:


-----Original Message-----
From: Pierre-Louis Bossart [mailto:pierre-louis.bossart@xxxxxxxxxxxxxxx]
Sent: Tuesday, May 7, 2019 7:11 AM
To: Evan Green <evgreen@xxxxxxxxxxxx>; Liam Girdwood <liam.r.girdwood@xxxxxxxxxxxxxxx>; Mark Brown <broonie@xxxxxxxxxx>
Cc: M, Naveen <naveen.m@xxxxxxxxx>; M R, Sathya Prakash <sathya.prakash.m.r@xxxxxxxxx>; Ben Zhang <benzh@xxxxxxxxxxxx>; Rajat Jain <rajatja@xxxxxxxxxxxx>; Jaroslav Kysela <perex@xxxxxxxx>; alsa-devel@xxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Takashi Iwai <tiwai@xxxxxxxx>; Liam Girdwood <lgirdwood@xxxxxxxxx>
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.

we must be talking about a different skew. I'll check, give me a couple of days.


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@xxxxxxxxxxxx>
---

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, }
};

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