diff options
Diffstat (limited to 'drivers/mfd/intel-lpss-pci.c')
| -rw-r--r-- | drivers/mfd/intel-lpss-pci.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c index a59aa147959b..5513fae6be92 100644 --- a/drivers/mfd/intel-lpss-pci.c +++ b/drivers/mfd/intel-lpss-pci.c @@ -17,6 +17,15 @@ #include "intel-lpss.h" +/* Some DSDTs have an unused GEXP ACPI device conflicting with I2C4 resources */ +static const struct pci_device_id ignore_resource_conflicts_ids[] = { + /* Microsoft Surface Go (version 1) I2C4 */ + { PCI_DEVICE_SUB(PCI_VENDOR_ID_INTEL, 0x9d64, 0x152d, 0x1182), }, + /* Microsoft Surface Go 2 I2C4 */ + { PCI_DEVICE_SUB(PCI_VENDOR_ID_INTEL, 0x9d64, 0x152d, 0x1237), }, + { } +}; + static int intel_lpss_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { @@ -35,6 +44,9 @@ static int intel_lpss_pci_probe(struct pci_dev *pdev, info->mem = &pdev->resource[0]; info->irq = pdev->irq; + if (pci_match_id(ignore_resource_conflicts_ids, pdev)) + info->ignore_resource_conflicts = true; + pdev->d3cold_delay = 0; /* Probably it is enough to set this for iDMA capable devices only */ |