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| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-12-23 12:40:40 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 10:39:11 (GMT) |
| commit | 9bdd47c53b7cf79f68ef5038e9494261f060f64e (patch) | |
| tree | e922a9148a558823b0ad13896799afd39d43f7b5 | |
| parent | 2b95c939cb88c3182e9dd681d4cf40b70985b8a5 (diff) | |
| download | linux-9bdd47c53b7cf79f68ef5038e9494261f060f64e.tar.xz | |
usb: dwc3: core: avoid Overflow events
commit e71d363d9c611c99fb78f53bfee99616e7fe352c upstream.
Now that we're handling so many transfers at a time
and for some dwc3 revisions LPM events *must* be
enabled, we can fall into a situation where too many
events fire and we start receiving Overflow events.
Let's do what XHCI does and allocate a full page for
the Event Ring, this will avoid any future issues.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/dwc3/core.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 6b60e42..cc035e9 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -43,9 +43,7 @@ #define DWC3_XHCI_RESOURCES_NUM 2 #define DWC3_SCRATCHBUF_SIZE 4096 /* each buffer is assumed to be 4KiB */ -#define DWC3_EVENT_SIZE 4 /* bytes */ -#define DWC3_EVENT_MAX_NUM 64 /* 2 events/endpoint */ -#define DWC3_EVENT_BUFFERS_SIZE (DWC3_EVENT_SIZE * DWC3_EVENT_MAX_NUM) +#define DWC3_EVENT_BUFFERS_SIZE 4096 #define DWC3_EVENT_TYPE_MASK 0xfe #define DWC3_EVENT_TYPE_DEV 0 |