You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
81 lines
3.0 KiB
81 lines
3.0 KiB
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
|
|
@@ -634,7 +634,7 @@ 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;
|
|
@@ -830,7 +830,7 @@ 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
|
|
@@ -47,6 +47,7 @@ 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
|
|
@@ -201,6 +201,7 @@ struct ehci_hcd { /* one per controlle
|
|
unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */
|
|
unsigned need_oc_pp_cycle:1; /* MPC834X port power */
|
|
unsigned imx28_write_fix:1; /* For Freescale i.MX28 */
|
|
+ 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);
|
|
|