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Subject[PATCH v3 3/3] usb: dwc3: add quirk USB_GADGET_QUIRK_EP_OUT_ALIGNED_SIZE to gadget driver
Date
DWC3 requires epout to have buffer size aligned to MaxPacketSize value.
This patch adds necessary quirk for it.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
---
drivers/usb/dwc3/gadget.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 5452c0f..528c7d7 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2600,6 +2600,12 @@ int dwc3_gadget_init(struct dwc3 *dwc)
dwc->gadget.name = "dwc3-gadget";

/*
+ * Per databook, DWC3 needs buffer size to be aligned to MaxPacketSize
+ * on ep out.
+ */
+ dwc->gadget.quirk_ep_out_aligned_size = 1;
+
+ /*
* REVISIT: Here we should clear all pending IRQs to be
* sure we're starting from a well known location.
*/
--
1.8.4.rc3


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