linux-kernel - [PATCH 1/2] ASoC: amd: ps: Propagate the PCI subsystem Vendor and Device IDs

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Message-ID: <20251016150649.320277-2-simont@opensource.cirrus.com>
Date: Thu, 16 Oct 2025 15:06:48 +0000
From: Simon Trimmer <simont@...nsource.cirrus.com>
To: broonie@...nel.org
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...nsource.cirrus.com, Vijendar.Mukunda@....com,
        Simon Trimmer <simont@...nsource.cirrus.com>
Subject: [PATCH 1/2] ASoC: amd: ps: Propagate the PCI subsystem Vendor and Device IDs

Extend the ACP machine driver to propagate the PCI subsystem Vendor and
Device IDs so that they may be subsequently used as an SSID.

Signed-off-by: Simon Trimmer <simont@...nsource.cirrus.com>
---
 sound/soc/amd/ps/acp63.h  | 2 ++
 sound/soc/amd/ps/pci-ps.c | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h
index 90fc016dac0b..62cb6bef17ab 100644
--- a/sound/soc/amd/ps/acp63.h
+++ b/sound/soc/amd/ps/acp63.h
@@ -370,6 +370,8 @@ struct acp63_dev_data {
 	u32 addr;
 	u32 reg_range;
 	u32 acp_rev;
+	u32 subsystem_vendor;
+	u32 subsystem_device;
 	u32 acp_sw_pad_keeper_en;
 	u32 acp_pad_pulldown_ctrl;
 	u16 acp63_sdw0_dma_intr_stat[ACP63_SDW0_DMA_MAX_STREAMS];
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index c62299b29204..3a20cc10d61f 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -335,6 +335,12 @@ static struct snd_soc_acpi_mach *acp63_sdw_machine_select(struct device *dev)
 			mach->mach_params.links = mach->links;
 			mach->mach_params.link_mask = mach->link_mask;
 			mach->mach_params.subsystem_rev = acp_data->acp_rev;
+			mach->mach_params.subsystem_vendor = acp_data->subsystem_vendor;
+			mach->mach_params.subsystem_device = acp_data->subsystem_device;
+			mach->mach_params.subsystem_id_set = true;
+
+			dev_dbg(dev, "SSID %x%x\n", mach->mach_params.subsystem_vendor,
+				mach->mach_params.subsystem_device);
 			return mach;
 		}
 	}
@@ -617,6 +623,9 @@ static int snd_acp63_probe(struct pci_dev *pci,
 	adata->addr = addr;
 	adata->reg_range = ACP63_REG_END - ACP63_REG_START;
 	adata->acp_rev = pci->revision;
+	adata->subsystem_vendor = pci->subsystem_vendor;
+	adata->subsystem_device = pci->subsystem_device;
+
 	pci_set_master(pci);
 	pci_set_drvdata(pci, adata);
 	mutex_init(&adata->acp_lock);
-- 
2.43.0