From: Sherry Sun <sherry.sun@nxp.com>
Date: Thu, 26 Sep 2019 14:04:07 +0000 (-0400)
Subject: MLK-22673: sdp: Change bInterval of interrupt endpoint to 3
X-Git-Tag: rel_imx_4.19.35_1.1.0~53
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=0f33591cbbb8a2e848e4c297b8293c7b97874ca1;p=u-boot.git

MLK-22673: sdp: Change bInterval of interrupt endpoint to 3

Since the USB HID limits the maximum bandwidth(3072) for interrupt
endpoint transfers, when the bInterval set to 1, we can only support 3
boards to run sdp at the same time. In order to support more boards,
change the bInterval of interrupt endpoint to 3, which will not affect
the transmission speed.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit beb0283e6bac3d42cc87757e3c0e200e2ac3b68f)
---

diff --git a/drivers/usb/gadget/f_sdp.c b/drivers/usb/gadget/f_sdp.c
index 3f9d174ef3..941e8b0e30 100644
--- a/drivers/usb/gadget/f_sdp.c
+++ b/drivers/usb/gadget/f_sdp.c
@@ -182,7 +182,7 @@ static struct usb_endpoint_descriptor in_hs_desc = {
 	.bEndpointAddress =	1 | USB_DIR_IN,
 	.bmAttributes =	USB_ENDPOINT_XFER_INT,
 	.wMaxPacketSize =	512,
-	.bInterval =		1,
+	.bInterval =		3,
 };
 
 static struct usb_endpoint_descriptor out_hs_desc = {
@@ -192,7 +192,7 @@ static struct usb_endpoint_descriptor out_hs_desc = {
 	.bEndpointAddress =	1 | USB_DIR_OUT,
 	.bmAttributes =		USB_ENDPOINT_XFER_INT,
 	.wMaxPacketSize =	SDP_HID_PACKET_SIZE_EP1,
-	.bInterval =		1,
+	.bInterval =		3,
 };
 
 static struct usb_descriptor_header *sdp_runtime_descs[] = {