diff options
| author | Li Jun <b47624@freescale.com> | 2015-01-20 16:03:38 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@nxp.com> | 2016-01-14 10:57:03 -0600 |
| commit | c3fbcbc498022570bcf24dda9ec4bef7c4296d24 (patch) | |
| tree | af0e383b2e167309e1ad4d7cfb21c65d88ca6f94 /drivers/usb/phy | |
| parent | 9513eb8891d76f83ed064f6d5233337a3f02db2a (diff) | |
MLK-10086-3 usb: phy-nop: add the implementation of .set_suspend
Add clock enable/disable at .set_suspend if the PHY has
suspend requirement, it can be benefit of power saving for
phy and the whole system (parent clock may also be disabled).
Signed-off-by: Peter Chen <peter.chen@freescale.com>
(cherry picked from commit 6c2f853799899c37ee2f733cafd58f1b2dc1f37f)
Diffstat (limited to 'drivers/usb/phy')
| -rw-r--r-- | drivers/usb/phy/phy-generic.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index 0cd85f2ccddd..1fec0a9fc999 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -59,6 +59,16 @@ EXPORT_SYMBOL_GPL(usb_phy_generic_unregister); static int nop_set_suspend(struct usb_phy *x, int suspend) { + struct usb_phy_generic *nop = dev_get_drvdata(x->dev); + + if (IS_ERR(nop->clk)) + return 0; + + if (suspend) + clk_disable_unprepare(nop->clk); + else + clk_prepare_enable(nop->clk); + return 0; } |