Unverified Commit 426463d9 authored by Shyam Sundar S K's avatar Shyam Sundar S K Committed by Ilpo Järvinen
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platform/x86/amd/pmc: Send OS_HINT command for new AMD platform 



To initiate the HW deep state transition, the OS_HINT command has to be
sent to the PMFW. Add this support to the platforms that belong to family
1Ah model 60h series.

Signed-off-by: default avatarShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240718150119.3427190-1-Shyam-sundar.S-k@amd.com


Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent 4c83ee4b

drivers/platform/x86/amd/pmc/pmc.c

+2 −0
Original line number Diff line number Diff line
@@ -764,6 +764,7 @@ static int amd_pmc_get_os_hint(struct amd_pmc_dev *dev) 
	case AMD_CPU_ID_CB:

	case AMD_CPU_ID_PS:

	case PCI_DEVICE_ID_AMD_1AH_M20H_ROOT:

	case PCI_DEVICE_ID_AMD_1AH_M60H_ROOT:

		return MSG_OS_HINT_RN;

	}

	return -EINVAL;
@@ -967,6 +968,7 @@ static const struct pci_device_id pmc_pci_ids[] = { 
	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_RV) },

	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_SP) },

	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M20H_ROOT) },

	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M60H_ROOT) },

	{ }

};

drivers/platform/x86/amd/pmc/pmc.h

+1 −0
Original line number Diff line number Diff line
@@ -67,6 +67,7 @@ void amd_mp2_stb_deinit(struct amd_pmc_dev *dev); 
#define AMD_CPU_ID_PS			0x14E8

#define AMD_CPU_ID_SP			0x14A4

#define PCI_DEVICE_ID_AMD_1AH_M20H_ROOT 0x1507

#define PCI_DEVICE_ID_AMD_1AH_M60H_ROOT 0x1122

#define PCI_DEVICE_ID_AMD_MP2_STB	0x172c



#endif /* PMC_H */