Openwrt/target/linux/generic/pending-4.14/110-ehci_hcd_ignore_oc.patch
Hauke Mehrtens b3f95490b9 kernel: generic: Add kernel 4.14 support
This adds initial support for kernel 4.14 based on the patches for
kernel 4.9.

In the configuration I deactivated some of the new possible security
features like:
CONFIG_REFCOUNT_FULL
CONFIG_SLAB_FREELIST_HARDENED
CONFIG_SOFTLOCKUP_DETECTOR
CONFIG_WARN_ALL_UNSEEDED_RANDOM

And these overlay FS options are also deactivated:
CONFIG_OVERLAY_FS_INDEX
CONFIG_OVERLAY_FS_REDIRECT_DIR

I activated this:
CONFIG_FORTIFY_SOURCE
CONFIG_POSIX_TIMERS
CONFIG_SLAB_MERGE_DEFAULT
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED

I am not sure if I did the porting correct for the following patches:
target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch
target/linux/generic/hack-4.14/220-gc_sections.patch
target/linux/generic/hack-4.14/321-powerpc_crtsavres_prereq.patch
target/linux/generic/pending-4.14/305-mips_module_reloc.patch
target/linux/generic/pending-4.14/611-netfilter_match_bypass_default_table.patch
target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-12-16 22:11:19 +01:00

80 lines
2.8 KiB
Diff

From: Florian Fainelli <florian@openwrt.org>
Subject: 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
@@ -651,7 +651,7 @@ 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
@@ -646,7 +646,7 @@ 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;
@@ -1016,7 +1016,7 @@ 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
@@ -263,6 +263,8 @@ static int ehci_platform_probe(struct pl
hcd->has_tt = 1;
if (pdata->reset_on_resume)
priv->reset_on_resume = true;
+ if (pdata->ignore_oc)
+ ehci->ignore_oc = 1;
#ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO
if (ehci->big_endian_mmio) {
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -231,6 +231,7 @@ 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
@@ -49,6 +49,7 @@ struct usb_ehci_pdata {
unsigned no_io_watchdog:1;
unsigned reset_on_resume:1;
unsigned dma_mask_64:1;
+ unsigned ignore_oc:1;
/* Turn on all power and clocks */
int (*power_on)(struct platform_device *pdev);