linux-kernel - [RFC 4/5] usb: dwc3-exynos: enable async suspend/resume

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Message-Id: <1387363174-25942-4-git-send-email-yuvaraj.cd@samsung.com>
Date:	Wed, 18 Dec 2013 16:09:33 +0530
From:	Yuvaraj Kumar C D <yuvaraj.cd@...il.com>
To:	stern@...land.harvard.edu, gregkh@...uxfoundation.org,
	kgene.kim@...sung.com, linux-usb@...r.kernel.org,
	sarah.a.sharp@...ux.intel.com, balbi@...com,
	gautam.vivek@...sung.com, joshi@...sung.com
Cc:	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Andrew Bresticker <abrestic@...omium.org>,
	Yuvaraj Kumar C D <yuvaraj.cd@...sung.com>
Subject: [RFC 4/5] usb: dwc3-exynos: enable async suspend/resume

From: Andrew Bresticker <abrestic@...omium.org>

In addition to enabling async suspend/resume on the xhci-plat device,
we must enable it for the dwc3-exynos platform device in order to make
the full USB stack resume asynchronously.  Like the xhci-plat, ehci-s5p,
and ohci-exynos drivers, there are no outside dependencies which would
make resuming the dwc3-exynos driver asynchronously unsafe.

Signed-off-by: Andrew Bresticker <abrestic@...omium.org>
Reviewed-by: Julius Werner <jwerner@...omium.org>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@...sung.com>
---
 drivers/usb/dwc3/dwc3-exynos.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 8b20c70..57431b7 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -155,6 +155,8 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 		goto err2;
 	}
 
+	device_enable_async_suspend(dev);
+
 	return 0;
 
 err2:
-- 
1.7.9.5

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