ASoC: SOF: amd: Enable signed firmware image loading for Vangogh platform

Enable signed firmware loading for Vangogh platform using dmi quirks.

Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
Link: https://lore.kernel.org/r/20230809123534.287707-3-venkataprasad.potturu@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Venkata-Prasad-Potturu

sound/soc/sof/amd/acp.c

@@ -20,6 +20,22 @@
 #include "acp.h"
 #include "acp-dsp-offset.h"
 
+#define SECURED_FIRMWARE 1
+
+const struct dmi_system_id acp_sof_quirk_table[] = {
+	{
+		/* Valve Jupiter device */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Valve"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Galileo"),
+			DMI_MATCH(DMI_PRODUCT_FAMILY, "Sephiroth"),
+		},
+		.driver_data = (void *)SECURED_FIRMWARE,
+	},
+	{}
+};
+EXPORT_SYMBOL_GPL(acp_sof_quirk_table);
+
 static int smn_write(struct pci_dev *dev, u32 smn_addr, u32 data)
 {
 	pci_write_config_dword(dev, 0x60, smn_addr);
@@ -468,8 +484,10 @@ EXPORT_SYMBOL_NS(amd_sof_acp_resume, SND_SOC_SOF_AMD_COMMON);
 int amd_sof_acp_probe(struct snd_sof_dev *sdev)
 {
 	struct pci_dev *pci = to_pci_dev(sdev->dev);
+	struct snd_sof_pdata *plat_data = sdev->pdata;
 	struct acp_dev_data *adata;
 	const struct sof_amd_acp_desc *chip;
+	const struct dmi_system_id *dmi_id;
 	unsigned int addr;
 	int ret;
 
@@ -531,6 +549,19 @@ int amd_sof_acp_probe(struct snd_sof_dev *sdev)
 	sdev->debug_box.size = BOX_SIZE_1024;
 
 	adata->signed_fw_image = false;
+	dmi_id = dmi_first_match(acp_sof_quirk_table);
+	if (dmi_id && dmi_id->driver_data) {
+		adata->fw_code_bin = kasprintf(GFP_KERNEL, "%s/sof-%s-code.bin",
+					       plat_data->fw_filename_prefix,
+					       chip->name);
+		adata->fw_data_bin = kasprintf(GFP_KERNEL, "%s/sof-%s-data.bin",
+					       plat_data->fw_filename_prefix,
+					       chip->name);
+		adata->signed_fw_image = dmi_id->driver_data;
+
+		dev_dbg(sdev->dev, "fw_code_bin:%s, fw_data_bin:%s\n", adata->fw_code_bin,
+			adata->fw_data_bin);
+	}
 	acp_memory_init(sdev);
 
 	acp_dsp_stream_init(sdev);

sound/soc/sof/amd/acp.h

@@ -11,6 +11,8 @@
 #ifndef __SOF_AMD_ACP_H
 #define __SOF_AMD_ACP_H
 
+#include <linux/dmi.h>
+
 #include "../sof-priv.h"
 #include "../sof-audio.h"
 
@@ -297,4 +299,5 @@ int acp_probes_register(struct snd_sof_dev *sdev);
 void acp_probes_unregister(struct snd_sof_dev *sdev);
 
 extern struct snd_soc_acpi_mach snd_soc_acpi_amd_vangogh_sof_machines[];
+extern const struct dmi_system_id acp_sof_quirk_table[];
 #endif

sound/soc/sof/amd/vangogh.c

@@ -142,12 +142,18 @@ EXPORT_SYMBOL_NS(sof_vangogh_ops, SND_SOC_SOF_AMD_COMMON);
 
 int sof_vangogh_ops_init(struct snd_sof_dev *sdev)
 {
+	const struct dmi_system_id *dmi_id;
+
 	/* common defaults */
 	memcpy(&sof_vangogh_ops, &sof_acp_common_ops, sizeof(struct snd_sof_dsp_ops));
 
 	sof_vangogh_ops.drv = vangogh_sof_dai;
 	sof_vangogh_ops.num_drv = ARRAY_SIZE(vangogh_sof_dai);
 
+	dmi_id = dmi_first_match(acp_sof_quirk_table);
+	if (dmi_id && dmi_id->driver_data)
+		sof_vangogh_ops.load_firmware = acp_sof_load_signed_firmware;
+
 	return 0;
 }