USB: isp1760: Assign resource fields before adding hcd

[linux-2.6-omap-h63xx.git] / drivers / usb / host / ohci-hcd.c

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 704f33fdd2f12bc974966568984c2d63baf4c7a4..33f1c1c32edf75ecc5a93e4a171c0afa2806a123 100644 (file)
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -36,6 +36,7 @@
 #include <linux/dmapool.h>
 #include <linux/reboot.h>
 #include <linux/workqueue.h>
+#include <linux/debugfs.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -466,7 +467,7 @@ static void unlink_watchdog_func(unsigned long _ohci)
 out:
        kfree(seen);
        if (ohci->eds_scheduled)
-               mod_timer(&ohci->unlink_watchdog, round_jiffies_relative(HZ));
+               mod_timer(&ohci->unlink_watchdog, round_jiffies(jiffies + HZ));
 done:
        spin_unlock_irqrestore(&ohci->lock, flags);
 }
@@ -732,24 +733,27 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
        struct ohci_regs __iomem *regs = ohci->regs;
        int                     ints;
 
-       /* we can eliminate a (slow) ohci_readl()
-        * if _only_ WDH caused this irq
+       /* Read interrupt status (and flush pending writes).  We ignore the
+        * optimization of checking the LSB of hcca->done_head; it doesn't
+        * work on all systems (edge triggering for OHCI can be a factor).
         */
-       if ((ohci->hcca->done_head != 0)
-                       && ! (hc32_to_cpup (ohci, &ohci->hcca->done_head)
-                               & 0x01)) {
-               ints =  OHCI_INTR_WDH;
+       ints = ohci_readl(ohci, &regs->intrstatus);
 
-       /* cardbus/... hardware gone before remove() */
-       } else if ((ints = ohci_readl (ohci, &regs->intrstatus)) == ~(u32)0) {
+       /* Check for an all 1's result which is a typical consequence
+        * of dead, unclocked, or unplugged (CardBus...) devices
+        */
+       if (ints == ~(u32)0) {
                disable (ohci);
                ohci_dbg (ohci, "device removed!\n");
                return IRQ_HANDLED;
+       }
+
+       /* We only care about interrupts that are enabled */
+       ints &= ohci_readl(ohci, &regs->intrenable);
 
        /* interrupt for some other device? */
-       } else if ((ints &= ohci_readl (ohci, &regs->intrenable)) == 0) {
+       if (ints == 0)
                return IRQ_NOTMINE;
-       }
 
        if (ints & OHCI_INTR_UE) {
                // e.g. due to PCI Master/Target Abort
@@ -806,13 +810,9 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
        }
 
        if (ints & OHCI_INTR_WDH) {
-               if (HC_IS_RUNNING(hcd->state))
-                       ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrdisable);
                spin_lock (&ohci->lock);
                dl_done_list (ohci);
                spin_unlock (&ohci->lock);
-               if (HC_IS_RUNNING(hcd->state))
-                       ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrenable);
        }
 
        if (quirk_zfmicro(ohci) && (ints & OHCI_INTR_SF)) {
@@ -994,7 +994,7 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER                ohci_hcd_lh7a404_driver
 #endif
 
-#ifdef CONFIG_PXA27x
+#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
 #include "ohci-pxa27x.c"
 #define PLATFORM_DRIVER                ohci_hcd_pxa27x_driver
 #endif
@@ -1029,6 +1029,13 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER                usb_hcd_pnx4008_driver
 #endif
 
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7763)
+#include "ohci-sh.c"
+#define PLATFORM_DRIVER                ohci_hcd_sh_driver
+#endif
+
 
 #ifdef CONFIG_USB_OHCI_HCD_PPC_OF
 #include "ohci-ppc-of.c"
@@ -1045,6 +1052,11 @@ MODULE_LICENSE ("GPL");
 #define SSB_OHCI_DRIVER                ssb_ohci_driver
 #endif
 
+#ifdef CONFIG_MFD_SM501
+#include "ohci-sm501.c"
+#define PLATFORM_DRIVER                ohci_hcd_sm501_driver
+#endif
+
 #if    !defined(PCI_DRIVER) &&         \
        !defined(PLATFORM_DRIVER) &&    \
        !defined(OF_PLATFORM_DRIVER) && \
@@ -1065,6 +1077,14 @@ static int __init ohci_hcd_mod_init(void)
        pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name,
                sizeof (struct ed), sizeof (struct td));
 
+#ifdef DEBUG
+       ohci_debug_root = debugfs_create_dir("ohci", NULL);
+       if (!ohci_debug_root) {
+               retval = -ENOENT;
+               goto error_debug;
+       }
+#endif
+
 #ifdef PS3_SYSTEM_BUS_DRIVER
        retval = ps3_ohci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
        if (retval < 0)
@@ -1127,6 +1147,12 @@ static int __init ohci_hcd_mod_init(void)
        ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
  error_ps3:
 #endif
+#ifdef DEBUG
+       debugfs_remove(ohci_debug_root);
+       ohci_debug_root = NULL;
+ error_debug:
+#endif
+
        return retval;
 }
 module_init(ohci_hcd_mod_init);
@@ -1151,6 +1177,9 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef PS3_SYSTEM_BUS_DRIVER
        ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
+#ifdef DEBUG
+       debugfs_remove(ohci_debug_root);
+#endif
 }
 module_exit(ohci_hcd_mod_exit);