From: David Cohen <david.a.cohen@linux.intel.com>
To: balbi@ti.com, gregkh@linuxfoundation.org
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
stern@rowland.harvard.edu, Paul.Zimmerman@synopsys.com,
David Cohen <david.a.cohen@linux.intel.com>
Subject: [PATCH v3 3/3] usb: dwc3: add quirk USB_GADGET_QUIRK_EP_OUT_ALIGNED_SIZE to gadget driver
Date: Wed, 30 Oct 2013 10:06:18 -0700 [thread overview]
Message-ID: <1383152778-30739-4-git-send-email-david.a.cohen@linux.intel.com> (raw)
In-Reply-To: <1383152778-30739-1-git-send-email-david.a.cohen@linux.intel.com>
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
next prev parent reply other threads:[~2013-10-30 17:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-30 17:06 [PATCH v3 0/3] add gadget quirk to adapt f_fs for DWC3 David Cohen
2013-10-30 17:06 ` [PATCH v3 1/3] usb: gadget: add quirk_ep_out_aligned_size field to struct usb_gadget David Cohen
2013-10-30 17:31 ` Alan Stern
2013-10-30 17:36 ` Felipe Balbi
2013-10-30 17:33 ` Felipe Balbi
2013-10-30 17:06 ` [PATCH v3 2/3] usb: ffs: check quirk to pad epout buf size when not aligned to maxpacketsize David Cohen
2013-10-30 17:35 ` Alan Stern
2013-11-04 19:02 ` David Cohen
2013-10-30 17:06 ` David Cohen [this message]
2013-10-30 17:35 ` [PATCH v3 3/3] usb: dwc3: add quirk USB_GADGET_QUIRK_EP_OUT_ALIGNED_SIZE to gadget driver Felipe Balbi
2013-10-31 19:58 ` David Cohen
2013-10-31 21:16 ` Felipe Balbi
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