platform/x86/amd/pmc: Add new platform support

PMC driver can be supported on a new upcoming platform.
Add this information to the support list.

Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220630050324.3780654-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Author: Shyam Sundar S K

drivers/platform/x86/amd/pmc.c

@@ -92,6 +92,7 @@
 #define AMD_CPU_ID_CZN			AMD_CPU_ID_RN
 #define AMD_CPU_ID_YC			0x14B5
 #define AMD_CPU_ID_CB			0x14D8
+#define AMD_CPU_ID_PS			0x14E8
 
 #define PMC_MSG_DELAY_MIN_US		50
 #define RESPONSE_REGISTER_LOOP_MAX	20000
@@ -320,6 +321,7 @@ static int amd_pmc_idlemask_read(struct amd_pmc_dev *pdev, struct device *dev,
 		break;
 	case AMD_CPU_ID_YC:
 	case AMD_CPU_ID_CB:
+	case AMD_CPU_ID_PS:
 		val = amd_pmc_reg_read(pdev, AMD_PMC_SCRATCH_REG_YC);
 		break;
 	default:
@@ -493,7 +495,8 @@ static void amd_pmc_dbgfs_register(struct amd_pmc_dev *dev)
 			    &amd_pmc_idlemask_fops);
 	/* Enable STB only when the module_param is set */
 	if (enable_stb) {
-		if (dev->cpu_id == AMD_CPU_ID_YC || dev->cpu_id == AMD_CPU_ID_CB)
+		if (dev->cpu_id == AMD_CPU_ID_YC || dev->cpu_id == AMD_CPU_ID_CB ||
+		    dev->cpu_id == AMD_CPU_ID_PS)
 			debugfs_create_file("stb_read", 0644, dev->dbgfs_dir, dev,
 					    &amd_pmc_stb_debugfs_fops_v2);
 		else
@@ -618,6 +621,7 @@ static int amd_pmc_get_os_hint(struct amd_pmc_dev *dev)
 	case AMD_CPU_ID_RN:
 	case AMD_CPU_ID_YC:
 	case AMD_CPU_ID_CB:
+	case AMD_CPU_ID_PS:
 		return MSG_OS_HINT_RN;
 	}
 	return -EINVAL;
@@ -738,6 +742,7 @@ static struct acpi_s2idle_dev_ops amd_pmc_s2idle_dev_ops = {
 #endif
 
 static const struct pci_device_id pmc_pci_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_PS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_CB) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_YC) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_CZN) },