* [PATCH] usb: xhci: tegra: enable stream protocol support
@ 2023-05-12 8:04 Jim Lin
0 siblings, 0 replies; only message in thread
From: Jim Lin @ 2023-05-12 8:04 UTC (permalink / raw)
To: gregkh
Cc: mathias.nyman, thierry.reding, jonathanh, linux-usb, linux-tegra,
linux-kernel, Henry Lin, Jim Lin
From: Henry Lin <henryl@nvidia.com>
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>
---
drivers/usb/host/xhci-tegra.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index c75d93244143..ea55e401c70e 100644
--- 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);
--
2.17.1
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