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path: root/drivers/usb/host/xhci-pci.c
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Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
-rw-r--r--drivers/usb/host/xhci-pci.c96
1 files changed, 47 insertions, 49 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index dc1e345ab67e..91dccd25a551 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -55,6 +55,9 @@
#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI 0x51ed
#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI 0x54ed
+#define PCI_VENDOR_ID_PHYTIUM 0x1db7
+#define PCI_DEVICE_ID_PHYTIUM_XHCI 0xdc27
+
/* Thunderbolt */
#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138
#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI 0x15b5
@@ -78,6 +81,9 @@
#define PCI_DEVICE_ID_ASMEDIA_2142_XHCI 0x2142
#define PCI_DEVICE_ID_ASMEDIA_3242_XHCI 0x3242
+#define PCI_DEVICE_ID_CADENCE 0x17CD
+#define PCI_DEVICE_ID_CADENCE_SSP 0x0200
+
static const char hcd_name[] = "xhci_hcd";
static struct hc_driver __read_mostly xhci_pci_hc_driver;
@@ -93,6 +99,10 @@ static const struct xhci_driver_overrides xhci_pci_overrides __initconst = {
.update_hub_device = xhci_pci_update_hub_device,
};
+/*
+ * Primary Legacy and MSI IRQ are synced in suspend_common().
+ * All MSI-X IRQs and secondary MSI IRQs should be synced here.
+ */
static void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
{
struct usb_hcd *hcd = xhci_to_hcd(xhci);
@@ -105,13 +115,12 @@ static void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
}
}
-/* Free any IRQs and disable MSI-X */
+/* Legacy IRQ is freed by usb_remove_hcd() or usb_hcd_pci_shutdown() */
static void xhci_cleanup_msix(struct xhci_hcd *xhci)
{
struct usb_hcd *hcd = xhci_to_hcd(xhci);
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
- /* return if using legacy interrupt */
if (hcd->irq > 0)
return;
@@ -235,15 +244,6 @@ static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev)
static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
{
struct pci_dev *pdev = to_pci_dev(dev);
- struct xhci_driver_data *driver_data;
- const struct pci_device_id *id;
-
- id = pci_match_id(to_pci_driver(pdev->dev.driver)->id_table, pdev);
-
- if (id && id->driver_data) {
- driver_data = (struct xhci_driver_data *)id->driver_data;
- xhci->quirks |= driver_data->quirks;
- }
/* Look for vendor-specific quirks */
if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
@@ -416,6 +416,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_VIA)
xhci->quirks |= XHCI_RESET_ON_RESUME;
+ if (pdev->vendor == PCI_VENDOR_ID_PHYTIUM &&
+ pdev->device == PCI_DEVICE_ID_PHYTIUM_XHCI)
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
+
/* See https://bugzilla.kernel.org/show_bug.cgi?id=79511 */
if (pdev->vendor == PCI_VENDOR_ID_VIA &&
pdev->device == 0x3432)
@@ -473,6 +477,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH;
}
+ if (pdev->vendor == PCI_DEVICE_ID_CADENCE &&
+ pdev->device == PCI_DEVICE_ID_CADENCE_SSP)
+ xhci->quirks |= XHCI_CDNS_SCTX_QUIRK;
+
/* xHC spec requires PCI devices to support D3hot and D3cold */
if (xhci->hci_version >= 0x120)
xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
@@ -534,10 +542,9 @@ static int xhci_pci_setup(struct usb_hcd *hcd)
struct xhci_hcd *xhci;
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
int retval;
+ u8 sbrn;
xhci = hcd_to_xhci(hcd);
- if (!xhci->sbrn)
- pci_read_config_byte(pdev, XHCI_SBRN_OFFSET, &xhci->sbrn);
/* imod_interval is the interrupt moderation value in nanoseconds. */
xhci->imod_interval = 40000;
@@ -552,7 +559,8 @@ static int xhci_pci_setup(struct usb_hcd *hcd)
if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
xhci_pme_acpi_rtd3_enable(pdev);
- xhci_dbg(xhci, "Got SBRN %u\n", (unsigned int) xhci->sbrn);
+ pci_read_config_byte(pdev, XHCI_SBRN_OFFSET, &sbrn);
+ xhci_dbg(xhci, "Got SBRN %u\n", (unsigned int)sbrn);
/* Find any debug ports */
return xhci_pci_reinit(xhci, pdev);
@@ -572,21 +580,13 @@ static int xhci_pci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hd
* We need to register our own PCI probe function (instead of the USB core's
* function) in order to create a second roothub under xHCI.
*/
-static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
+int xhci_pci_common_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
int retval;
struct xhci_hcd *xhci;
struct usb_hcd *hcd;
- struct xhci_driver_data *driver_data;
struct reset_control *reset;
- driver_data = (struct xhci_driver_data *)id->driver_data;
- if (driver_data && driver_data->quirks & XHCI_RENESAS_FW_QUIRK) {
- retval = renesas_xhci_check_request_fw(dev, id);
- if (retval)
- return retval;
- }
-
reset = devm_reset_control_get_optional_exclusive(&dev->dev, NULL);
if (IS_ERR(reset))
return PTR_ERR(reset);
@@ -651,12 +651,30 @@ put_runtime_pm:
pm_runtime_put_noidle(&dev->dev);
return retval;
}
+EXPORT_SYMBOL_NS_GPL(xhci_pci_common_probe, xhci);
-static void xhci_pci_remove(struct pci_dev *dev)
+static const struct pci_device_id pci_ids_reject[] = {
+ /* handled by xhci-pci-renesas */
+ { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0014) },
+ { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0015) },
+ { /* end: all zeroes */ }
+};
+
+static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ if (pci_match_id(pci_ids_reject, dev))
+ return -ENODEV;
+
+ return xhci_pci_common_probe(dev, id);
+}
+
+void xhci_pci_remove(struct pci_dev *dev)
{
struct xhci_hcd *xhci;
+ bool set_power_d3;
xhci = hcd_to_xhci(pci_get_drvdata(dev));
+ set_power_d3 = xhci->quirks & XHCI_SPURIOUS_WAKEUP;
xhci->xhc_state |= XHCI_STATE_REMOVING;
@@ -669,12 +687,13 @@ static void xhci_pci_remove(struct pci_dev *dev)
xhci->shared_hcd = NULL;
}
+ usb_hcd_pci_remove(dev);
+
/* Workaround for spurious wakeups at shutdown with HSW */
- if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
+ if (set_power_d3)
pci_set_power_state(dev, PCI_D3hot);
-
- usb_hcd_pci_remove(dev);
}
+EXPORT_SYMBOL_NS_GPL(xhci_pci_remove, xhci);
/*
* In some Intel xHCI controllers, in order to get D3 working,
@@ -783,7 +802,6 @@ static int xhci_pci_resume(struct usb_hcd *hcd, pm_message_t msg)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
- int retval = 0;
reset_control_reset(xhci->reset);
@@ -814,8 +832,7 @@ static int xhci_pci_resume(struct usb_hcd *hcd, pm_message_t msg)
if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
xhci_pme_quirk(hcd);
- retval = xhci_resume(xhci, msg);
- return retval;
+ return xhci_resume(xhci, msg);
}
static int xhci_pci_poweroff_late(struct usb_hcd *hcd, bool do_wakeup)
@@ -882,19 +899,8 @@ static void xhci_pci_shutdown(struct usb_hcd *hcd)
/*-------------------------------------------------------------------------*/
-static const struct xhci_driver_data reneses_data = {
- .quirks = XHCI_RENESAS_FW_QUIRK,
- .firmware = "renesas_usb_fw.mem",
-};
-
/* PCI driver selection metadata; PCI hotplugging uses this */
static const struct pci_device_id pci_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0014),
- .driver_data = (unsigned long)&reneses_data,
- },
- { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0015),
- .driver_data = (unsigned long)&reneses_data,
- },
/* handle any USB 3.0 xHCI controller */
{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_XHCI, ~0),
},
@@ -902,14 +908,6 @@ static const struct pci_device_id pci_ids[] = {
};
MODULE_DEVICE_TABLE(pci, pci_ids);
-/*
- * Without CONFIG_USB_XHCI_PCI_RENESAS renesas_xhci_check_request_fw() won't
- * load firmware, so don't encumber the xhci-pci driver with it.
- */
-#if IS_ENABLED(CONFIG_USB_XHCI_PCI_RENESAS)
-MODULE_FIRMWARE("renesas_usb_fw.mem");
-#endif
-
/* pci driver glue; this is a "new style" PCI driver module */
static struct pci_driver xhci_pci_driver = {
.name = hcd_name,
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-03 04:23:14 +0000