[kernel] add ignore_oc in struct ehci_hcd

[openwrt.git] / target / linux / generic / patches-3.0 / 102-ehci_hcd_ignore_oc.patch

diff --git a/target/linux/generic/patches-3.0/102-ehci_hcd_ignore_oc.patch b/target/linux/generic/patches-3.0/102-ehci_hcd_ignore_oc.patch
new file mode 100644 (file)
index 0000000..79e26b3
--- /dev/null
+++ b/target/linux/generic/patches-3.0/102-ehci_hcd_ignore_oc.patch
@@ -0,0 +1,41 @@
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -746,7 +746,7 @@ static int ehci_run (struct usb_hcd *hcd
+               "USB %x.%x started, EHCI %x.%02x%s\n",
+               ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f),
+               temp >> 8, temp & 0xff,
+-              ignore_oc ? ", overcurrent ignored" : "");
++              (ignore_oc || ehci->ignore_oc) ? ", overcurrent ignored" : "");
+ 
+       ehci_writel(ehci, INTR_MASK,
+                   &ehci->regs->intr_enable); /* Turn On Interrupts */
+--- a/drivers/usb/host/ehci-hub.c
++++ b/drivers/usb/host/ehci-hub.c
+@@ -656,7 +656,7 @@ ehci_hub_status_data (struct usb_hcd *hc
+        * always set, seem to clear PORT_OCC and PORT_CSC when writing to
+        * PORT_POWER; that's surprising, but maybe within-spec.
+        */
+-      if (!ignore_oc)
++      if (!ignore_oc || !ehci->ignore_oc)
+               mask = PORT_CSC | PORT_PEC | PORT_OCC;
+       else
+               mask = PORT_CSC | PORT_PEC;
+@@ -881,7 +881,7 @@ static int ehci_hub_control (
+               if (temp & PORT_PEC)
+                       status |= USB_PORT_STAT_C_ENABLE << 16;
+ 
+-              if ((temp & PORT_OCC) && !ignore_oc){
++              if ((temp & PORT_OCC) && (!ignore_oc || !ehci->ignore_oc)){
+                       status |= USB_PORT_STAT_C_OVERCURRENT << 16;
+ 
+                       /*
+--- a/drivers/usb/host/ehci.h
++++ b/drivers/usb/host/ehci.h
+@@ -137,6 +137,7 @@ struct ehci_hcd {                  /* one per controlle
+       unsigned                fs_i_thresh:1;  /* Intel iso scheduling */
+       unsigned                use_dummy_qh:1; /* AMD Frame List table quirk*/
+       unsigned                has_synopsys_hc_bug:1; /* Synopsys HC */
++      unsigned                ignore_oc:1;
+ 
+       /* required for usb32 quirk */
+       #define OHCI_CTRL_HCFS          (3 << 6)