4.19-stable review patch. If anyone has any objections, please let me know.
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From: WangYuli wangyuli@uniontech.com
commit 9246b487ab3c3b5993aae7552b7a4c541cc14a49 upstream.
Add DMA support for audio function of Glenfly Arise chip, which uses Requester ID of function 0.
Link: https://lore.kernel.org/r/CA2BBD087345B6D1+20240823095708.3237375-1-wangyuli... Signed-off-by: SiyuLi siyuli@glenfly.com Signed-off-by: WangYuli wangyuli@uniontech.com [bhelgaas: lower-case hex to match local code, drop unused Device IDs] Signed-off-by: Bjorn Helgaas bhelgaas@google.com Reviewed-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pci/quirks.c | 4 ++++ include/linux/pci_ids.h | 2 ++ 2 files changed, 6 insertions(+)
--- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4044,6 +4044,10 @@ static void quirk_dma_func0_alias(struct DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe832, quirk_dma_func0_alias); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe476, quirk_dma_func0_alias);
+/* Some Glenfly chips use function 0 as the PCIe Requester ID for DMA */ +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_GLENFLY, 0x3d40, quirk_dma_func0_alias); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_GLENFLY, 0x3d41, quirk_dma_func0_alias); + static void quirk_dma_func1_alias(struct pci_dev *dev) { if (PCI_FUNC(dev->devfn) != 1) --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2647,6 +2647,8 @@ #define PCI_DEVICE_ID_DCI_PCCOM8 0x0002 #define PCI_DEVICE_ID_DCI_PCCOM2 0x0004
+#define PCI_VENDOR_ID_GLENFLY 0x6766 + #define PCI_VENDOR_ID_INTEL 0x8086 #define PCI_DEVICE_ID_INTEL_EESSC 0x0008 #define PCI_DEVICE_ID_INTEL_PXHD_0 0x0320