[PATCH AUTOSEL 4.19 072/123] USB: omap_udc: fix rejection of out transfers when DMA is used

Sasha Levin
2018-12-05T09:40:09Z

From: Aaro Koskinen <aaro.koskinen@iki.fi>

[ Upstream commit 069caf5950dfa75d0526cd89c439ff9d9d3136d8 ]

Commit 387f869d2579 ("usb: gadget: u_ether: conditionally align
transfer size") started aligning transfer size only if requested,
breaking omap_udc DMA mode. Set quirk_ep_out_aligned_size to restore
the old behaviour.

Fixes: 387f869d2579 ("usb: gadget: u_ether: conditionally align transfer size")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/gadget/udc/omap_udc.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index 9b23e04c8f02..fcf13ef33b31 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -2642,6 +2642,7 @@ omap_udc_setup(struct platform_device *odev, struct usb_phy *xceiv)
udc->gadget.speed = USB_SPEED_UNKNOWN;
udc->gadget.max_speed = USB_SPEED_FULL;
udc->gadget.name = driver_name;
+ udc->gadget.quirk_ep_out_aligned_size = 1;
udc->transceiver = xceiv;

/* ep0 is special; put it right after the SETUP buffer */
--
2.17.1