diff options
| author | Peter Chen <peter.chen@nxp.com> | 2016-10-31 10:18:20 +0800 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-11-18 13:54:42 +0200 |
| commit | a0fe0415e0b2a1d87b54db1a0451e05f59675f0c (patch) | |
| tree | 666f5c7c2cec2595456ce256ef2069387e8deee4 | |
| parent | a22f884b266514e3657e65f2a63141f70d3644c0 (diff) | |
usb: phy: phy-generic: add the implementation of .set_suspend
Add clock operation 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@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/phy/phy-generic.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index 8311ba2968cd..89d6e7a5fdb7 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -59,6 +59,15 @@ 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)) { + if (suspend) + clk_disable_unprepare(nop->clk); + else + clk_prepare_enable(nop->clk); + } + return 0; } |