usb: xhci-mtk: check hcc_params after adding primary hcd

hcc_params is set in xhci_gen_setup() called from usb_add_hcd(),
so checks the Maximum Primary Stream Array Size in the hcc_params
register after adding primary hcd.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 9066ec9..6ac73a6 100644 (file)
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -678,13 +678,13 @@ static int xhci_mtk_probe(struct platform_device *pdev)
                goto power_off_phys;
        }
 
-       if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
-               xhci->shared_hcd->can_do_streams = 1;
-
        ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
        if (ret)
                goto put_usb3_hcd;
 
+       if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+               xhci->shared_hcd->can_do_streams = 1;
+
        ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
        if (ret)
                goto dealloc_usb2_hcd;