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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-03-14 14:45:56 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-03-14 14:45:56 +0000
commit05ea13b746e715f03c70e29068b650a62e5e5d79 (patch)
tree08d6be7813310be182259388518215a17afcc18c /target/linux/generic/patches-3.9/102-ehci_hcd_ignore_oc.patch
parent54d0b82f17bde2e67b8a2b58c1cb3e9ba294e9b7 (diff)
kernel: add support for 3.9-rc2
Signed-off-by: Florian Fainelli <florian@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36008 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.9/102-ehci_hcd_ignore_oc.patch')
-rw-r--r--target/linux/generic/patches-3.9/102-ehci_hcd_ignore_oc.patch81
1 files changed, 81 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.9/102-ehci_hcd_ignore_oc.patch b/target/linux/generic/patches-3.9/102-ehci_hcd_ignore_oc.patch
new file mode 100644
index 000000000..b133dd672
--- /dev/null
+++ b/target/linux/generic/patches-3.9/102-ehci_hcd_ignore_oc.patch
@@ -0,0 +1,81 @@
+From 1e311820ec3055e3f08e687de6564692a7cec675 Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <florian@openwrt.org>
+Date: Mon, 28 Jan 2013 20:06:29 +0100
+Subject: [PATCH 11/12] USB: EHCI: add ignore_oc flag to disable overcurrent
+ checking
+
+This patch adds an ignore_oc flag which can be set by EHCI controller
+not supporting or wanting to disable overcurrent checking. The EHCI
+platform data in include/linux/usb/ehci_pdriver.h is also augmented to
+take advantage of this new flag.
+
+Signed-off-by: Florian Fainelli <florian@openwrt.org>
+---
+ drivers/usb/host/ehci-hcd.c | 2 +-
+ drivers/usb/host/ehci-hub.c | 4 ++--
+ drivers/usb/host/ehci-platform.c | 1 +
+ drivers/usb/host/ehci.h | 1 +
+ include/linux/usb/ehci_pdriver.h | 1 +
+ 5 files changed, 6 insertions(+), 3 deletions(-)
+
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -630,7 +630,7 @@ 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
+@@ -611,7 +611,7 @@ 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;
+@@ -829,7 +829,7 @@ 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-platform.c
++++ b/drivers/usb/host/ehci-platform.c
+@@ -45,6 +45,7 @@ static int ehci_platform_reset(struct us
+ ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug;
+ ehci->big_endian_desc = pdata->big_endian_desc;
+ ehci->big_endian_mmio = pdata->big_endian_mmio;
++ ehci->ignore_oc = pdata->ignore_oc;
+
+ ehci->caps = hcd->regs + pdata->caps_offset;
+ retval = ehci_setup(hcd);
+--- a/drivers/usb/host/ehci.h
++++ b/drivers/usb/host/ehci.h
+@@ -200,6 +200,7 @@ struct ehci_hcd { /* one per controlle
+ unsigned use_dummy_qh:1; /* AMD Frame List table quirk*/
+ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */
+ unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */
++ unsigned ignore_oc:1;
+
+ /* required for usb32 quirk */
+ #define OHCI_CTRL_HCFS (3 << 6)
+--- a/include/linux/usb/ehci_pdriver.h
++++ b/include/linux/usb/ehci_pdriver.h
+@@ -42,6 +42,7 @@ struct usb_ehci_pdata {
+ unsigned big_endian_desc:1;
+ unsigned big_endian_mmio:1;
+ unsigned no_io_watchdog:1;
++ unsigned ignore_oc:1;
+
+ /* Turn on all power and clocks */
+ int (*power_on)(struct platform_device *pdev);