Re: [PATCH 1/2] usb: xhci-mtk: check hcc_params after adding primary hcd

From: Mathias Nyman
Date: Wed Mar 08 2017 - 06:07:27 EST


On 08.03.2017 02:51, Chunfeng Yun wrote:
On Tue, 2017-03-07 at 17:10 +0200, Mathias Nyman wrote:
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@xxxxxxxxxxxx>

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.
No issues on mt8173, because it doesn't support bulk stream. But it
causes a issue on the newest SoC which is not upstreamed, so I think it
needn't go stable kernels.


Ok, thanks, skipping stable

-Mathias