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usb: ch9: Add USB 3.2 SSP attributes

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[ Upstream commit f2fc9ff28d1c9bef7760516feadd38164044caae ]

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@synopsys.com>
Link: https://lore.kernel.org/r/ae9293ebd63a29f2a2035054753534d9eb123d74.1610592135.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: b6155eaf6b05 ("usb: common: debug: Check non-standard control requests")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thinh Nguyen
2021-01-13 18:52:46 -08:00
committed by Greg Kroah-Hartman
parent aa7aada4b7
commit ffffb159e1
2 changed files with 22 additions and 0 deletions
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9
include/linux/usb/ch9.h
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@@ -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,
};
/**
* usb_ep_type_string() - Returns human readable-name of the endpoint type.
* @ep_type: The endpoint type to return human-readable name for. If it's not