From 60b78ed088ebe1a872ee1320b6c5ad6ee2c4bd9a Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Fri, 3 Sep 2021 14:33:11 +0800 Subject: PCI: Add AMD GPU multi-function power dependencies Some AMD GPUs have built-in USB xHCI and USB Type-C UCSI controllers with power dependencies between the GPU and the other functions as in 6d2e369f0d4c ("PCI: Add NVIDIA GPU multi-function power dependencies"). Add device link support for the AMD integrated USB xHCI and USB Type-C UCSI controllers. Without this, runtime power management, including GPU resume and temp and fan sensors don't work correctly. Reported-at: https://gitlab.freedesktop.org/drm/amd/-/issues/1704 Link: https://lore.kernel.org/r/20210903063311.3606226-1-evan.quan@amd.com Signed-off-by: Evan Quan Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org --- drivers/pci/quirks.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index e5089af8ad90..4537d1ea14fd 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5435,7 +5435,7 @@ DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_HD_AUDIO, 8, quirk_gpu_hda); /* - * Create device link for NVIDIA GPU with integrated USB xHCI Host + * Create device link for GPUs with integrated USB xHCI Host * controller to VGA. */ static void quirk_gpu_usb(struct pci_dev *usb) @@ -5444,9 +5444,11 @@ static void quirk_gpu_usb(struct pci_dev *usb) } DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_CLASS_SERIAL_USB, 8, quirk_gpu_usb); +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID, + PCI_CLASS_SERIAL_USB, 8, quirk_gpu_usb); /* - * Create device link for NVIDIA GPU with integrated Type-C UCSI controller + * Create device link for GPUs with integrated Type-C UCSI controller * to VGA. Currently there is no class code defined for UCSI device over PCI * so using UNKNOWN class for now and it will be updated when UCSI * over PCI gets a class code. @@ -5459,6 +5461,9 @@ static void quirk_gpu_usb_typec_ucsi(struct pci_dev *ucsi) DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_CLASS_SERIAL_UNKNOWN, 8, quirk_gpu_usb_typec_ucsi); +DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID, + PCI_CLASS_SERIAL_UNKNOWN, 8, + quirk_gpu_usb_typec_ucsi); /* * Enable the NVIDIA GPU integrated HDA controller if the BIOS left it -- cgit v1.2.3