[PATCH] usb: dwc2: gadget: Repair DSTS register decoding

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The "enumspd" field is located in register DSTS[2:1], but the current
set of macros define the possible values without the necessary offset.
This in turn causes incorrect detection of gadget link partner speed
in dwc2_hsotg_irq_enumdone() .

The rest of the macros in dwc2/hw.h always define possible values of
fields with offset, so keep this consistent, add the necessary offset
and fix the problem with speed detection.

Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: John Youn <johnyoun@xxxxxxxxxxxx>
---
 drivers/usb/dwc2/hw.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h
index 553f246..0fd5683 100644
--- a/drivers/usb/dwc2/hw.h
+++ b/drivers/usb/dwc2/hw.h
@@ -452,10 +452,10 @@
 #define DSTS_ERRATICERR			(1 << 3)
 #define DSTS_ENUMSPD_MASK		(0x3 << 1)
 #define DSTS_ENUMSPD_SHIFT		1
-#define DSTS_ENUMSPD_HS			0
-#define DSTS_ENUMSPD_FS			1
-#define DSTS_ENUMSPD_LS			2
-#define DSTS_ENUMSPD_FS48		3
+#define DSTS_ENUMSPD_HS			(0 << 1)
+#define DSTS_ENUMSPD_FS			(1 << 1)
+#define DSTS_ENUMSPD_LS			(2 << 1)
+#define DSTS_ENUMSPD_FS48		(3 << 1)
 #define DSTS_SUSPSTS			(1 << 0)
 
 #define DIEPMSK				HSOTG_REG(0x810)
-- 
2.6.4

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux