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usb: xhci-plat: check hcc_params after add hcd

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The commit 4ac53087d6 ("usb: xhci: plat: Create both
HCDs before adding them") move add hcd to the end of
probe, this cause hcc_params uninitiated, because xHCI
driver sets hcc_params in xhci_gen_setup() called from
usb_add_hcd().

This patch checks the Maximum Primary Stream Array Size
in the hcc_params register after add hcd.

Change-Id: I5a05ca6a8ac25e914752914abb70612849cc175e
Signed-off-by: William Wu <wulf@rock-chips.com>
This commit is contained in:
William Wu
2016-12-30 19:45:49 +08:00
committed by Huang, Tao
parent a04670629c
commit 4301c33db2
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/host/xhci-plat.c
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@@ -172,9 +172,6 @@ static int xhci_plat_probe(struct platform_device *pdev)
(pdata && pdata->usb3_lpm_capable))
xhci->quirks |= XHCI_LPM_SUPPORT;
if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
xhci->shared_hcd->can_do_streams = 1;
hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
if (IS_ERR(hcd->usb_phy)) {
ret = PTR_ERR(hcd->usb_phy);
@@ -195,6 +192,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
if (ret)
goto dealloc_usb2_hcd;
if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
xhci->shared_hcd->can_do_streams = 1;
return 0;