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WangYulibjorn-helgaas
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PCI: Add function 0 DMA alias quirk for Glenfly Arise chip
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@uniontech.com 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>
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Lines changed: 7 additions & 1 deletion

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drivers/pci/quirks.c

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@@ -4246,6 +4246,10 @@ static void quirk_dma_func0_alias(struct pci_dev *dev)
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe832, quirk_dma_func0_alias);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe476, quirk_dma_func0_alias);
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/* Some Glenfly chips use function 0 as the PCIe Requester ID for DMA */
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_GLENFLY, 0x3d40, quirk_dma_func0_alias);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_GLENFLY, 0x3d41, quirk_dma_func0_alias);
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static void quirk_dma_func1_alias(struct pci_dev *dev)
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{
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if (PCI_FUNC(dev->devfn) != 1)

include/linux/pci_ids.h

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@@ -2661,6 +2661,8 @@
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#define PCI_DEVICE_ID_DCI_PCCOM8 0x0002
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#define PCI_DEVICE_ID_DCI_PCCOM2 0x0004
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#define PCI_VENDOR_ID_GLENFLY 0x6766
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#define PCI_VENDOR_ID_INTEL 0x8086
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#define PCI_DEVICE_ID_INTEL_EESSC 0x0008
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#define PCI_DEVICE_ID_INTEL_HDA_CML_LP 0x02c8

sound/pci/hda/hda_intel.c

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@@ -2671,7 +2671,7 @@ static const struct pci_device_id azx_ids[] = {
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.driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
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AZX_DCAPS_PM_RUNTIME },
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/* GLENFLY */
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{ PCI_DEVICE(0x6766, PCI_ANY_ID),
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{ PCI_DEVICE(PCI_VENDOR_ID_GLENFLY, PCI_ANY_ID),
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.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
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.class_mask = 0xffffff,
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.driver_data = AZX_DRIVER_GFHDMI | AZX_DCAPS_POSFIX_LPIB |

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