Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> writes:
> In preparation for USB 3.2 dual-lane support, add sublink speed
> attribute macros and enum usb_ssp_rate. A USB device that operates in
> SuperSpeed Plus may operate at different speed and lane count. These
> additional macros and enum values help specifying that.
>
> Signed-off-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
> ---
> Changes in v6:
> - Rebase on Greg's usb-testing branch
> - Convert the sublink speed attribute enum to macros and move it to uapi
> - Remove usb_sublink_speed struct
> - To simplify things, use usb_ssp_rate enum to specify the signaling rate
> generation and lane count
> - Update commit message
> Changes in v5:
> - Rebase on Felipe's testing/next branch
> - Changed Signed-off-by email to match From: email header
> Changes in v4:
> - None
> Changes in v3:
> - None
> Changes in v2:
> - Move to include/linux/usb/ch9.h instead of under uapi
>
> include/linux/usb/ch9.h | 9 +++++++++
> include/uapi/linux/usb/ch9.h | 13 +++++++++++++
> 2 files changed, 22 insertions(+)
>
> diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
> index 604c6c514a50..86c50907634e 100644
> --- a/include/linux/usb/ch9.h
> +++ b/include/linux/usb/ch9.h
> @@ -36,6 +36,15 @@
> #include <linux/device.h>
> #include <uapi/linux/usb/ch9.h>
>
> +/* USB 3.2 SuperSpeed Plus phy signaling rate generation and lane count */
> +
> +enum usb_ssp_rate {
> + USB_SSP_GEN_UNKNOWN = 0,
> + USB_SSP_GEN_2x1,
> + USB_SSP_GEN_1x2,
> + USB_SSP_GEN_2x2,
> +};
note that xHCI has some private definitions for USB 3.2 support. Maybe
add a patch converting xHCI to the generic versions?
--
balbi
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