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-rw-r--r--drivers/usb/host/ehci-hcd.c18
-rw-r--r--drivers/usb/host/max3421-hcd.c44
-rw-r--r--drivers/usb/host/xhci-hub.c3
-rw-r--r--drivers/usb/host/xhci-pci-renesas.c16
-rw-r--r--drivers/usb/host/xhci-pci.c7
5 files changed, 45 insertions, 43 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 36f5bf6a0752..10b0365f3439 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -703,24 +703,28 @@ EXPORT_SYMBOL_GPL(ehci_setup);
static irqreturn_t ehci_irq (struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
- u32 status, masked_status, pcd_status = 0, cmd;
+ u32 status, current_status, masked_status, pcd_status = 0;
+ u32 cmd;
int bh;
spin_lock(&ehci->lock);
- status = ehci_readl(ehci, &ehci->regs->status);
+ status = 0;
+ current_status = ehci_readl(ehci, &ehci->regs->status);
+restart:
/* e.g. cardbus physical eject */
- if (status == ~(u32) 0) {
+ if (current_status == ~(u32) 0) {
ehci_dbg (ehci, "device removed\n");
goto dead;
}
+ status |= current_status;
/*
* We don't use STS_FLR, but some controllers don't like it to
* remain on, so mask it out along with the other status bits.
*/
- masked_status = status & (INTR_MASK | STS_FLR);
+ masked_status = current_status & (INTR_MASK | STS_FLR);
/* Shared IRQ? */
if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) {
@@ -730,6 +734,12 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
/* clear (just) interrupts */
ehci_writel(ehci, masked_status, &ehci->regs->status);
+
+ /* For edge interrupts, don't race with an interrupt bit being raised */
+ current_status = ehci_readl(ehci, &ehci->regs->status);
+ if (current_status & INTR_MASK)
+ goto restart;
+
cmd = ehci_readl(ehci, &ehci->regs->command);
bh = 0;
diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index e7a8e0609853..59cc1bc7f12f 100644
--- a/drivers/usb/host/max3421-hcd.c
+++ b/drivers/usb/host/max3421-hcd.c
@@ -153,8 +153,6 @@ struct max3421_hcd {
*/
struct urb *curr_urb;
enum scheduling_pass sched_pass;
- struct usb_device *loaded_dev; /* dev that's loaded into the chip */
- int loaded_epnum; /* epnum whose toggles are loaded */
int urb_done; /* > 0 -> no errors, < 0: errno */
size_t curr_len;
u8 hien;
@@ -492,39 +490,17 @@ max3421_set_speed(struct usb_hcd *hcd, struct usb_device *dev)
* Caller must NOT hold HCD spinlock.
*/
static void
-max3421_set_address(struct usb_hcd *hcd, struct usb_device *dev, int epnum,
- int force_toggles)
+max3421_set_address(struct usb_hcd *hcd, struct usb_device *dev, int epnum)
{
- struct max3421_hcd *max3421_hcd = hcd_to_max3421(hcd);
- int old_epnum, same_ep, rcvtog, sndtog;
- struct usb_device *old_dev;
+ int rcvtog, sndtog;
u8 hctl;
- old_dev = max3421_hcd->loaded_dev;
- old_epnum = max3421_hcd->loaded_epnum;
-
- same_ep = (dev == old_dev && epnum == old_epnum);
- if (same_ep && !force_toggles)
- return;
-
- if (old_dev && !same_ep) {
- /* save the old end-points toggles: */
- u8 hrsl = spi_rd8(hcd, MAX3421_REG_HRSL);
-
- rcvtog = (hrsl >> MAX3421_HRSL_RCVTOGRD_BIT) & 1;
- sndtog = (hrsl >> MAX3421_HRSL_SNDTOGRD_BIT) & 1;
-
- /* no locking: HCD (i.e., we) own toggles, don't we? */
- usb_settoggle(old_dev, old_epnum, 0, rcvtog);
- usb_settoggle(old_dev, old_epnum, 1, sndtog);
- }
/* setup new endpoint's toggle bits: */
rcvtog = usb_gettoggle(dev, epnum, 0);
sndtog = usb_gettoggle(dev, epnum, 1);
hctl = (BIT(rcvtog + MAX3421_HCTL_RCVTOG0_BIT) |
BIT(sndtog + MAX3421_HCTL_SNDTOG0_BIT));
- max3421_hcd->loaded_epnum = epnum;
spi_wr8(hcd, MAX3421_REG_HCTL, hctl);
/*
@@ -532,7 +508,6 @@ max3421_set_address(struct usb_hcd *hcd, struct usb_device *dev, int epnum,
* address-assignment so it's best to just always load the
* address whenever the end-point changed/was forced.
*/
- max3421_hcd->loaded_dev = dev;
spi_wr8(hcd, MAX3421_REG_PERADDR, dev->devnum);
}
@@ -667,7 +642,7 @@ max3421_select_and_start_urb(struct usb_hcd *hcd)
struct max3421_hcd *max3421_hcd = hcd_to_max3421(hcd);
struct urb *urb, *curr_urb = NULL;
struct max3421_ep *max3421_ep;
- int epnum, force_toggles = 0;
+ int epnum;
struct usb_host_endpoint *ep;
struct list_head *pos;
unsigned long flags;
@@ -777,7 +752,6 @@ done:
usb_settoggle(urb->dev, epnum, 0, 1);
usb_settoggle(urb->dev, epnum, 1, 1);
max3421_ep->pkt_state = PKT_STATE_SETUP;
- force_toggles = 1;
} else
max3421_ep->pkt_state = PKT_STATE_TRANSFER;
}
@@ -785,7 +759,7 @@ done:
spin_unlock_irqrestore(&max3421_hcd->lock, flags);
max3421_ep->last_active = max3421_hcd->frame_number;
- max3421_set_address(hcd, urb->dev, epnum, force_toggles);
+ max3421_set_address(hcd, urb->dev, epnum);
max3421_set_speed(hcd, urb->dev);
max3421_next_transfer(hcd, 0);
return 1;
@@ -1379,6 +1353,16 @@ max3421_urb_done(struct usb_hcd *hcd)
status = 0;
urb = max3421_hcd->curr_urb;
if (urb) {
+ /* save the old end-points toggles: */
+ u8 hrsl = spi_rd8(hcd, MAX3421_REG_HRSL);
+ int rcvtog = (hrsl >> MAX3421_HRSL_RCVTOGRD_BIT) & 1;
+ int sndtog = (hrsl >> MAX3421_HRSL_SNDTOGRD_BIT) & 1;
+ int epnum = usb_endpoint_num(&urb->ep->desc);
+
+ /* no locking: HCD (i.e., we) own toggles, don't we? */
+ usb_settoggle(urb->dev, epnum, 0, rcvtog);
+ usb_settoggle(urb->dev, epnum, 1, sndtog);
+
max3421_hcd->curr_urb = NULL;
spin_lock_irqsave(&max3421_hcd->lock, flags);
usb_hcd_unlink_urb_from_ep(hcd, urb);
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index e9b18fc17617..151e93c4bd57 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1638,11 +1638,12 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
* Inform the usbcore about resume-in-progress by returning
* a non-zero value even if there are no status changes.
*/
+ spin_lock_irqsave(&xhci->lock, flags);
+
status = bus_state->resuming_ports;
mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC | PORT_CEC;
- spin_lock_irqsave(&xhci->lock, flags);
/* For each port, did anything change? If so, set that bit in buf. */
for (i = 0; i < max_ports; i++) {
temp = readl(ports[i]->addr);
diff --git a/drivers/usb/host/xhci-pci-renesas.c b/drivers/usb/host/xhci-pci-renesas.c
index 1da647961c25..5923844ed821 100644
--- a/drivers/usb/host/xhci-pci-renesas.c
+++ b/drivers/usb/host/xhci-pci-renesas.c
@@ -207,8 +207,7 @@ static int renesas_check_rom_state(struct pci_dev *pdev)
return 0;
case RENESAS_ROM_STATUS_NO_RESULT: /* No result yet */
- dev_dbg(&pdev->dev, "Unknown ROM status ...\n");
- break;
+ return 0;
case RENESAS_ROM_STATUS_ERROR: /* Error State */
default: /* All other states are marked as "Reserved states" */
@@ -225,12 +224,13 @@ static int renesas_fw_check_running(struct pci_dev *pdev)
u8 fw_state;
int err;
- /*
- * Only if device has ROM and loaded FW we can skip loading and
- * return success. Otherwise (even unknown state), attempt to load FW.
- */
- if (renesas_check_rom(pdev) && !renesas_check_rom_state(pdev))
- return 0;
+ /* Check if device has ROM and loaded, if so skip everything */
+ err = renesas_check_rom(pdev);
+ if (err) { /* we have rom */
+ err = renesas_check_rom_state(pdev);
+ if (!err)
+ return err;
+ }
/*
* Test if the device is actually needing the firmware. As most
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 18c2bbddf080..1c9a7957c45c 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -636,7 +636,14 @@ static const struct pci_device_id pci_ids[] = {
{ /* end: all zeroes */ }
};
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 = {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-27 11:14:42 +0300