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platform/x86/amd/pmc: Add support for Van Gogh SoC

The ROG Xbox Ally (non-X) SoC features a similar architecture to the
Steam Deck. While the Steam Deck supports S3 (s2idle causes a crash),
this support was dropped by the Xbox Ally which only S0ix suspend.

Since the handler is missing here, this causes the device to not suspend
and the AMD GPU driver to crash while trying to resume afterwards due to
a power hang.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4659
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20251024152152.3981721-2-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

authored by

Antheas Kapenekakis and committed by
Ilpo Järvinen db4a3f0f a6003d90

+4
+3
drivers/platform/x86/amd/pmc/pmc.c
··· 106 106 switch (dev->cpu_id) { 107 107 case AMD_CPU_ID_PCO: 108 108 case AMD_CPU_ID_RN: 109 + case AMD_CPU_ID_VG: 109 110 case AMD_CPU_ID_YC: 110 111 case AMD_CPU_ID_CB: 111 112 dev->num_ips = 12; ··· 518 517 case AMD_CPU_ID_PCO: 519 518 return MSG_OS_HINT_PCO; 520 519 case AMD_CPU_ID_RN: 520 + case AMD_CPU_ID_VG: 521 521 case AMD_CPU_ID_YC: 522 522 case AMD_CPU_ID_CB: 523 523 case AMD_CPU_ID_PS: ··· 719 717 { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_RV) }, 720 718 { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_SP) }, 721 719 { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_SHP) }, 720 + { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_VG) }, 722 721 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M20H_ROOT) }, 723 722 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M60H_ROOT) }, 724 723 { }
+1
drivers/platform/x86/amd/pmc/pmc.h
··· 156 156 #define AMD_CPU_ID_RN 0x1630 157 157 #define AMD_CPU_ID_PCO AMD_CPU_ID_RV 158 158 #define AMD_CPU_ID_CZN AMD_CPU_ID_RN 159 + #define AMD_CPU_ID_VG 0x1645 159 160 #define AMD_CPU_ID_YC 0x14B5 160 161 #define AMD_CPU_ID_CB 0x14D8 161 162 #define AMD_CPU_ID_PS 0x14E8