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)
{
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);