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usb: dwc3: core: increase the DWC3_ISOC_MAX_RETRIES to 50

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If usb gadget isochronous run in a high load and high bus latency
system, it may fail to start a transfer for isochronous endpoint,
and retry 5 times is not enough. This patch increases the retry
times to 50.

Change-Id: Id95a2b4fb09c3103a1da456b6ccb54ed24d03197
Signed-off-by: William Wu <william.wu@rock-chips.com>
This commit is contained in:
William Wu
2020-05-21 20:41:58 +08:00
committed by Tao Huang
parent 3d16bb640f
commit aa0f99d430
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/dwc3/core.h
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@@ -42,7 +42,7 @@
#define DWC3_EP0_SETUP_SIZE 512
#define DWC3_ENDPOINTS_NUM 32
#define DWC3_XHCI_RESOURCES_NUM 2
#define DWC3_ISOC_MAX_RETRIES 5
#define DWC3_ISOC_MAX_RETRIES 50
#define DWC3_SCRATCHBUF_SIZE 4096 /* each buffer is assumed to be 4KiB */
#define DWC3_EVENT_BUFFERS_SIZE 4096