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authorThinh Nguyen <Thinh.Nguyen@synopsys.com>2021-03-11 16:58:50 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-23 12:40:32 +0100
commit0c59f678fcfc6dd53ba493915794636a230bc4cc (patch)
treedf9872bb44fc2fc7176325082f6cac9cf57b9f71 /drivers/usb/dwc3/core.h
parent575b1ac410a2da1b76c9662dbeb8e500d061fbf2 (diff)
downloadlinux-0c59f678fcfc6dd53ba493915794636a230bc4cc.tar.gz
usb: dwc3: gadget: Remove invalid low-speed setting
None of the DWC_usb3x IPs (and all their versions) supports low-speed
setting in device mode. In the early days, our "Early Adopter Edition"
DWC_usb3 databook shows that the controller may be configured to operate
in low-speed, but it was revised on release. Let's remove this invalid
speed setting to avoid any confusion.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/258b1c7fbb966454f4c4c2c1367508998498fc30.1615509438.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
-rw-r--r--drivers/usb/dwc3/core.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index ce6bd84e2b39..4ca4b4be85e4 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -398,7 +398,6 @@
 #define DWC3_DCFG_SUPERSPEED	(4 << 0)
 #define DWC3_DCFG_HIGHSPEED	(0 << 0)
 #define DWC3_DCFG_FULLSPEED	BIT(0)
-#define DWC3_DCFG_LOWSPEED	(2 << 0)
 
 #define DWC3_DCFG_NUMP_SHIFT	17
 #define DWC3_DCFG_NUMP(n)	(((n) >> DWC3_DCFG_NUMP_SHIFT) & 0x1f)
@@ -492,7 +491,6 @@
 #define DWC3_DSTS_SUPERSPEED		(4 << 0)
 #define DWC3_DSTS_HIGHSPEED		(0 << 0)
 #define DWC3_DSTS_FULLSPEED		BIT(0)
-#define DWC3_DSTS_LOWSPEED		(2 << 0)
 
 /* Device Generic Command Register */
 #define DWC3_DGCMD_SET_LMP		0x01