[PATCH 1/2] usb: xhci-mtk: check hcc_params after adding primary hcd
Mathias Nyman
mathias.nyman at linux.intel.com
Tue Mar 7 07:10:59 PST 2017
On 07.03.2017 05:32, Chunfeng Yun wrote:
> 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 at mediatek.com>
> ---
> drivers/usb/host/xhci-mtk.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
> index 9066ec9..6ac73a6 100644
> --- 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;
>
Thanks.
Looks like streams check has never worked for Mediatek xHC hosts,
Do you know if this has caused any issues?
looks like it should go usb-linus and maybe stable kernels as well.
-Mathias
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