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| author | Tony Lindgren <tony@atomide.com> | 2016-11-16 13:21:27 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-17 16:25:40 +0100 |
| commit | f7c4a46352b58c04e4d2111df7fe0358ce84546d (patch) | |
| tree | 5a3f35b5eee22630f76db7727560c79ef9180524 /drivers/phy | |
| parent | 247529170d72ee16bbdfc94c3a696c79ea645c3a (diff) | |
| download | linux-f7c4a46352b58c04e4d2111df7fe0358ce84546d.tar.gz linux-f7c4a46352b58c04e4d2111df7fe0358ce84546d.tar.bz2 linux-f7c4a46352b58c04e4d2111df7fe0358ce84546d.zip | |
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 <ladis@linux-mips.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/phy-twl4030-usb.c | 4 |
1 files 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; } |