Over Current condition is not standardized in the UHCI spec. Zhaoxin UHCI controllers report Over Current active off. Intel controllers report it active on, so we'll adjust the bit value.
The patch is scheduled to be submitted to the kernel mainline in 2021.
Signed-off-by: LeoLiu-oc LeoLiu-oc@zhaoxin.com --- drivers/usb/host/uhci-pci.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c index 0dd944277c99..3c0d4c43b640 100644 --- a/drivers/usb/host/uhci-pci.c +++ b/drivers/usb/host/uhci-pci.c @@ -134,6 +134,9 @@ static int uhci_pci_init(struct usb_hcd *hcd) if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL) device_set_wakeup_capable(uhci_dev(uhci), true);
+ if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_ZHAOXIN) + uhci->oc_low = 1; + /* Set up pointers to PCI-specific functions */ uhci->reset_hc = uhci_pci_reset_hc; uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
On 2021/3/25 18:09, LeoLiu-oc wrote:
Over Current condition is not standardized in the UHCI spec. Zhaoxin UHCI controllers report Over Current active off. Intel controllers report it active on, so we'll adjust the bit value.
The patch is scheduled to be submitted to the kernel mainline in 2021.
Signed-off-by: LeoLiu-oc LeoLiu-oc@zhaoxin.com
drivers/usb/host/uhci-pci.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c index 0dd944277c99..3c0d4c43b640 100644 --- a/drivers/usb/host/uhci-pci.c +++ b/drivers/usb/host/uhci-pci.c @@ -134,6 +134,9 @@ static int uhci_pci_init(struct usb_hcd *hcd) if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL) device_set_wakeup_capable(uhci_dev(uhci), true);
+ if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_ZHAOXIN) + uhci->oc_low = 1;
/* Set up pointers to PCI-specific functions */ uhci->reset_hc = uhci_pci_reset_hc; uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
Reviewed-by: Hanjun Guo guohanjun@huawei.com
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Hanjun Guo -
LeoLiu-oc