commit 1520330de3f18762d88f9d5c0f90f7b67ed33f40
author Manu Gautam <mgautam@codeaurora.org> Wed Sep 26 11:12:54 2012 +0530
committer Manu Gautam <mgautam@codeaurora.org> Wed Oct 03 20:51:56 2012 +0530
tree 6aef5e057c3eb0fcfa61b550fec50f5aa44bb358
parent 38d7ebaff79c96a793e7d81983c9576c40cb45f1

usb: gadget: u_bam: Make OUT(or RX) request buffer size 1KB aligned

Synopsys USB3 Controller (DWC3) has a restriction where size
of OUT requests (TRB) queued to the controller must be aligned
with the endpoint's max packet size. Hence, change u_bam (RMNET
transport) driver to submit OUT request of size 2KB.

Change-Id: I60b77676827155f1674c676fb454bbb831388683
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>

drivers/usb/gadget/u_bam.c

diff --git a/drivers/usb/gadget/u_bam.c b/drivers/usb/gadget/u_bam.c
index 45dfb87..f092329 100644
--- a/drivers/usb/gadget/u_bam.c
+++ b/drivers/usb/gadget/u_bam.c
@@ -50,7 +50,7 @@
 
 #define BAM_MUX_RX_Q_SIZE			16
 #define BAM_MUX_TX_Q_SIZE			200
-#define BAM_MUX_RX_REQ_SIZE			(2048 - BAM_MUX_HDR)
+#define BAM_MUX_RX_REQ_SIZE			2048   /* Must be 1KB aligned */
 
 #define DL_INTR_THRESHOLD			20