diff options
Diffstat (limited to 'drivers/ata/ahci.c')
| -rw-r--r-- | drivers/ata/ahci.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 71e15b73513d..60707814a84b 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1115,6 +1115,17 @@ static bool ahci_broken_online(struct pci_dev *pdev) return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff); } +static bool ahci_broken_devslp(struct pci_dev *pdev) +{ + /* device with broken DEVSLP but still showing SDS capability */ + static const struct pci_device_id ids[] = { + { PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */ + {} + }; + + return pci_match_id(ids, pdev); +} + #ifdef CONFIG_ATA_ACPI static void ahci_gtf_filter_workaround(struct ata_host *host) { @@ -1364,6 +1375,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar]; + /* must set flag prior to save config in order to take effect */ + if (ahci_broken_devslp(pdev)) + hpriv->flags |= AHCI_HFLAG_NO_DEVSLP; + /* save initial config */ ahci_pci_save_initial_config(pdev, hpriv); |