usb: xhci: tegra: enable stream protocol support

This commit enables stream transfer protocol for Tegra XHCI.

Signed-off-by: Henry Lin <henryl@nvidia.com>
Signed-off-by: Jim Lin <jilin@nvidia.com>
Link: https://lore.kernel.org/r/20230512080423.27978-1-jilin@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 8a9c7deb7686e9cc654a2788c080b191fe105692..393e2c8064bd7bc10abc35fa65bf7e53cd3b5800 100644 (file)
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1828,6 +1828,9 @@ static int tegra_xusb_probe(struct platform_device *pdev)
                goto remove_usb2;
        }
 
+       if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+               xhci->shared_hcd->can_do_streams = 1;
+
        err = usb_add_hcd(xhci->shared_hcd, tegra->xhci_irq, IRQF_SHARED);
        if (err < 0) {
                dev_err(&pdev->dev, "failed to add shared HCD: %d\n", err);