Re: [PATCH 7/9] usb: host: pci-quirks: Bypass xHCI quirks for Raspberry Pi 4
From: Florian Fainelli <f.fainelli@gmail.com>
Date: 2020-06-08 19:51:11
Also in:
linux-arm-kernel, linux-pci, linux-usb, lkml
On 6/8/2020 12:26 PM, Nicolas Saenz Julienne wrote:
The board doesn't need the quirks to be run, and takes case of its own
(if you have to resubmit) takes care
initialization trough a reset controller device. So let's bypass it
its quirk.
quoted hunk ↗ jump to hunk
quirk. Signed-off-by: Nicolas Saenz Julienne <redacted> --- drivers/usb/host/pci-quirks.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 92150ecdb036..4b3be05d1290 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c@@ -16,6 +16,8 @@ #include <linux/export.h> #include <linux/acpi.h> #include <linux/dmi.h> +#include <linux/of.h> + #include "pci-quirks.h" #include "xhci-ext-caps.h"@@ -1248,6 +1250,16 @@ static void quirk_usb_early_handoff(struct pci_dev *pdev) */ if (pdev->vendor == 0x184e) /* vendor Netlogic */ return; + + /* + * Bypass the Raspberry Pi 4 controller xHCI controller, things are + * taken care by the board's co-processor.
taken care of by. With that: Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
+ */ + if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483 && + of_device_is_compatible(of_get_parent(pdev->bus->dev.of_node), + "brcm,bcm2711-pcie")) + return; + if (pdev->class != PCI_CLASS_SERIAL_USB_UHCI && pdev->class != PCI_CLASS_SERIAL_USB_OHCI && pdev->class != PCI_CLASS_SERIAL_USB_EHCI &&
-- Florian