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

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Message-Id: <20181205093555.5386-72-sashal@kernel.org>
Date:   Wed,  5 Dec 2018 04:35:04 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Aaro Koskinen <aaro.koskinen@....fi>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Sasha Levin <sashal@...nel.org>, linux-usb@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 072/123] USB: omap_udc: fix rejection of out transfers when DMA is used

From: Aaro Koskinen <aaro.koskinen@....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@....fi>
Signed-off-by: Felipe Balbi <felipe.balbi@...ux.intel.com>
Signed-off-by: Sasha Levin <sashal@...nel.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