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| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2020-07-25 00:01:09 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2020-09-24 11:56:16 +0300 |
| commit | e518bdd9f02c11c6fcbd75884f2a38782bedd1b3 (patch) | |
| tree | f240c728a597a87e7c788eb7f52e32582140f2c6 /drivers/usb/dwc3/core.c | |
| parent | b574ce3ee45937f4a01edc98c59213bfc7effe50 (diff) | |
| download | linux-e518bdd9f02c11c6fcbd75884f2a38782bedd1b3.tar.xz | |
usb: dwc3: core: Print warning on unsupported speed
The user may have more information to override the HW parameter to
specify the maximum_speed. However, if the user specifies a
maximum_speed that the controller doesn't support, print out a warning.
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index c8e0ef2c1db3..f3093b4e5307 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1399,8 +1399,17 @@ static void dwc3_check_params(struct dwc3 *dwc) case USB_SPEED_LOW: case USB_SPEED_FULL: case USB_SPEED_HIGH: + break; case USB_SPEED_SUPER: + if (hwparam_gen == DWC3_GHWPARAMS3_SSPHY_IFC_DIS) + dev_warn(dev, "UDC doesn't support Gen 1\n"); + break; case USB_SPEED_SUPER_PLUS: + if ((DWC3_IP_IS(DWC32) && + hwparam_gen == DWC3_GHWPARAMS3_SSPHY_IFC_DIS) || + (!DWC3_IP_IS(DWC32) && + hwparam_gen != DWC3_GHWPARAMS3_SSPHY_IFC_GEN2)) + dev_warn(dev, "UDC doesn't support SSP\n"); break; default: dev_err(dev, "invalid maximum_speed parameter %d\n", |