linux-kernel - [PATCH 3.16.y-ckt 164/185] phy: twl4030-usb: remove incorrect pm_runtime_get

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Message-Id: <1436951580-15977-165-git-send-email-luis.henriques@canonical.com>
Date:	Wed, 15 Jul 2015 10:12:39 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	NeilBrown <neil@...wn.name>,
	Kishon Vijay Abraham I <kishon@...com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 164/185] phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.

3.16.7-ckt15 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: NeilBrown <neil@...wn.name>

commit 4724e27114c4a7eceeee07db227a17fcab6f165c upstream.

The USB phy should initialize with power-off, and will be powered on
by the USB system when a cable connection is detected.

Having this pm_runtime_get_sync() during probe causes the phy to
*always* be powered on.
Removing it returns to sensible power management.

Fixes: 96be39ab34b77c6f6f5cd6ae03aac6c6449ee5c4
Signed-off-by: NeilBrown <neil@...wn.name>
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/phy/phy-twl4030-usb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index ef4f3350faa1..a2b877911b0f 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -745,7 +745,6 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev, 2000);
 	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
 
 	/* Our job is to use irqs and status from the power module
 	 * to keep the transceiver disabled when nothing's connected.
--
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