Le 28/01/2013 21:08, Alan Stern a écrit :
On Mon, 28 Jan 2013, Florian Fainelli wrote:
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 <flor...@openwrt.org>
---
drivers/usb/host/ehci-hcd.c | 2 +-
drivers/usb/host/ehci-hub.c | 4 ++--
drivers/usb/host/ehci.h | 1 +
include/linux/usb/ehci_pdriver.h | 1 +
4 files changed, 5 insertions(+), 3 deletions(-)
You forgot to add
ehci->ignore_oc = pdata->ignore_oc;
to ehci_platform_reset(). This makes me wonder: Either the patches
were not tested very well or else the new ignore_oc stuff isn't needed.
ignore_oc is not actually needed for all BCM63xx boards, and mine does
not require it, but that is clearly an oversight, thanks for spotting this.
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c97503b..bd435ac 100644
--- 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" : "");
You could simplify the code here and other places if you add
ehci->ignore_oc ||= ignore_oc;
to ehci_init(). Then you wouldn't need to test ignore_oc all the time.
Alan Stern
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