diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2021-03-08 10:51:56 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-10 09:37:16 +0100 |
| commit | 44b948287a94380967f7a0b832b7020ee4f449ee (patch) | |
| tree | 4d778d7c0912d99af0301db4a625ebd0f5e9d9e8 /drivers/usb/host | |
| parent | 338af695fffb12a9407c376ce0cebce896c15050 (diff) | |
usb: xhci-mtk: add a function to get bandwidth boundary
This is used to simplify unit test.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/805b3ba66c2f02a52de4440212519aaa58463039.1615170625.git.chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-mtk-sch.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c index 9a9685f74940..8fe4481eb43d 100644 --- a/drivers/usb/host/xhci-mtk-sch.c +++ b/drivers/usb/host/xhci-mtk-sch.c @@ -37,6 +37,25 @@ static int is_fs_or_ls(enum usb_device_speed speed) return speed == USB_SPEED_FULL || speed == USB_SPEED_LOW; } +static u32 get_bw_boundary(enum usb_device_speed speed) +{ + u32 boundary; + + switch (speed) { + case USB_SPEED_SUPER_PLUS: + boundary = SSP_BW_BOUNDARY; + break; + case USB_SPEED_SUPER: + boundary = SS_BW_BOUNDARY; + break; + default: + boundary = HS_BW_BOUNDARY; + break; + } + + return boundary; +} + /* * get the index of bandwidth domains array which @ep belongs to. * @@ -579,13 +598,7 @@ static int check_sch_bw(struct usb_device *udev, break; } - if (udev->speed == USB_SPEED_SUPER_PLUS) - bw_boundary = SSP_BW_BOUNDARY; - else if (udev->speed == USB_SPEED_SUPER) - bw_boundary = SS_BW_BOUNDARY; - else - bw_boundary = HS_BW_BOUNDARY; - + bw_boundary = get_bw_boundary(udev->speed); /* check bandwidth */ if (min_bw > bw_boundary) return -ERANGE; |