From f7c4a46352b58c04e4d2111df7fe0358ce84546d Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 16 Nov 2016 13:21:27 -0600 Subject: [PATCH] phy: twl4030-usb: Fix for musb session bit based PM Now with musb driver implementing generic session bit based PM, we need to have the USB PHYs behaving in a sane way for platforms implementing PM. Currently twl4030-usb enables PM in twl4030_phy_power_on() and then disables it in twl4030_phy_power_off(). This will block PM runtime for the SoC when no cable is connected. Fix the issue by moving PM runtime autosuspend call to happen where it gets called in twl4030_phy_power_on(). Note that this patch should not be backported to anything before commit 467d5c980709 ("usb: musb: Implement session bit based runtime PM for musb-core") as before that all the glue layers implemented their own PM. Fixes: 467d5c980709 ("usb: musb: Implement session bit based runtime PM for musb-core") Tested-by: Ladislav Michl Tested-by: Laurent Pinchart Signed-off-by: Tony Lindgren Acked-by: Kishon Vijay Abraham I Signed-off-by: Bin Liu Signed-off-by: Greg Kroah-Hartman --- drivers/phy/phy-twl4030-usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 87e6334eab93..547ca7b3f098 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -459,8 +459,6 @@ static int twl4030_phy_power_off(struct phy *phy) struct twl4030_usb *twl = phy_get_drvdata(phy); dev_dbg(twl->dev, "%s\n", __func__); - pm_runtime_mark_last_busy(twl->dev); - pm_runtime_put_autosuspend(twl->dev); return 0; } @@ -472,6 +470,8 @@ static int twl4030_phy_power_on(struct phy *phy) dev_dbg(twl->dev, "%s\n", __func__); pm_runtime_get_sync(twl->dev); schedule_delayed_work(&twl->id_workaround_work, HZ); + pm_runtime_mark_last_busy(twl->dev); + pm_runtime_put_autosuspend(twl->dev); return 0; }