usb: gadget: replace usb_gadget::is_dualspeed with max_speed

This commit replaces usb_gadget's is_dualspeed field with
a max_speed field.

[ balbi@ti.com : Fixed DWC3 driver ]

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 3d849122b5b1..a7e4ac1202d6 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -535,6 +535,20 @@ Why:    In 3.0, we can now autodetect internal 3G device and already have
         information log when acer-wmi initial.
 Who:    Lee, Chun-Yi <jlee@novell.com>
 
+---------------------------
+
+What:   /sys/devices/platform/_UDC_/udc/_UDC_/is_dualspeed file and
+        is_dualspeed line in /sys/devices/platform/ci13xxx_*/udc/device file.
+When:   3.8
+Why:    The is_dualspeed file is superseded by maximum_speed in the same
+        directory and is_dualspeed line in device file is superseded by
+        max_speed line in the same file.
+
+        The maximum_speed/max_speed specifies maximum speed supported by UDC.
+        To check if dualspeeed is supported, check if the value is >= 3.
+        Various possible speeds are defined in <linux/usb/ch9.h>.
+Who:    Michal Nazarewicz <mina86@mina86.com>
+
 ----------------------------
 
 What:   The XFS nodelaylog mount option