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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 1/2] fixup! usb: ehci-hcd: port periodic transactions implementation from the u-boot
Date: Wed, 23 Sep 2015 16:34:54 +0200	[thread overview]
Message-ID: <1443018895-20796-1-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1442937514-19675-1-git-send-email-pmamonov@gmail.com>

Flush/invalidate caches for interrupt transfers.
---
 drivers/usb/host/ehci-hcd.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 394f2d1..4946bfa 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1266,6 +1266,9 @@ submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 	dev_dbg(ehci->dev, "dev=%p, pipe=%lu, buffer=%p, length=%d, interval=%d",
 	      dev, pipe, buffer, length, interval);
 
+	dma_sync_single_for_device((unsigned long)buffer, length,
+				   DMA_BIDIRECTIONAL);
+
 	queue = ehci_create_int_queue(dev, pipe, 1, length, buffer, interval);
 	if (!queue) {
 		ehci->sem--;
@@ -1290,6 +1293,9 @@ submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 			result = -EINVAL;
 	}
 
+	dma_sync_single_for_cpu((unsigned long)buffer, length,
+				DMA_BIDIRECTIONAL);
+
 	ret = ehci_destroy_int_queue(dev, queue);
 	if (!result)
 		result = ret;
-- 
2.5.1


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  parent reply	other threads:[~2015-09-23 14:35 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-22 15:58 [PATCH v6 0/5] input: add usb keyboard driver Peter Mamonov
2015-09-22 15:58 ` [PATCH 1/5] common: clock: introduce mdelay_non_interruptible() Peter Mamonov
2015-09-22 21:15   ` Antony Pavlov
2015-09-22 21:20     ` Peter Mamonov
2015-09-22 15:58 ` [PATCH 2/5] usb: ehci-hcd: port periodic transactions implementation from the u-boot Peter Mamonov
2015-09-22 15:58 ` [PATCH 3/5] usb: ehci-hcd: detect re-entrance Peter Mamonov
2015-09-23 14:23   ` Sascha Hauer
2015-09-22 15:58 ` [PATCH 4/5] usb: ehci-hcd: use mdelay_non_inerruptible() Peter Mamonov
2015-10-07 13:47   ` Jean-Christophe PLAGNIOL-VILLARD
2015-10-07 14:40     ` Peter Mamonov
2015-10-07 15:40       ` Jean-Christophe PLAGNIOL-VILLARD
2015-10-07 16:52         ` Peter Mamonov
2015-10-12  7:00           ` Sascha Hauer
2015-10-12 11:43             ` Peter Mamonov
2015-10-12 13:44               ` Sascha Hauer
2015-10-13 10:37                 ` Peter Mamonov
2015-10-13 10:38                   ` Sascha Hauer
2015-10-13  2:04           ` Jean-Christophe PLAGNIOL-VILLARD
2015-10-13  9:11             ` Antony Pavlov
2015-09-22 15:58 ` [PATCH 5/5] input: port usb keyboard driver from the u-boot Peter Mamonov
2015-09-23 14:34 ` Sascha Hauer [this message]
2015-09-23 14:34   ` [PATCH 2/2] fixup! " Sascha Hauer

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