linux-kernel - [PATCH v2 03/10] usb: dwc3: Enable runtime pm only after PHYs are initialized

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Date:	Sat, 02 Mar 2013 18:53:04 +0530
From:	Vivek Gautam <gautam.vivek@...sung.com>
To:	linux-usb@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org, gregkh@...uxfoundation.org,
	balbi@...com, sarah.a.sharp@...ux.intel.com, kgene.kim@...sung.com,
	kishon@...com
Subject: [PATCH v2 03/10] usb: dwc3: Enable runtime pm only after PHYs are
 initialized

Allow dwc3 to enable auto power management only after its PHYs
are initialized so that any further PHY handling by dwc3's
runtime power management callbacks is fine.

Signed-off-by: Vivek Gautam <gautam.vivek@...sung.com>
---
 drivers/usb/dwc3/core.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 85914e0..2a77327 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -453,10 +453,6 @@ static int dwc3_probe(struct platform_device *pdev)
 
 	dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
 
-	pm_runtime_enable(dev);
-	pm_runtime_get_sync(dev);
-	pm_runtime_forbid(dev);
-
 	dwc3_cache_hwparams(dwc);
 
 	ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE);
@@ -478,6 +474,10 @@ static int dwc3_probe(struct platform_device *pdev)
 		goto err1;
 	}
 
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+	pm_runtime_forbid(dev);
+
 	if (IS_ENABLED(CONFIG_USB_DWC3_HOST))
 		mode = DWC3_MODE_HOST;
 	else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET))
-- 
1.7.6.5

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