diff options
| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2023-10-27 14:29:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-23 12:32:43 +0000 |
| commit | 9768af12edb3b23cfa1f7c05e019115b73f9490c (patch) | |
| tree | e321314e57f6889f42524539055cfe09b3b7496c /drivers/usb/phy | |
| parent | 5389b5d74efb6da22b01cdd91105bffc5f71dbdc (diff) | |
usb: phy: generic: add suspend support for regulator
Disable the vcc regulator on suspend and enable it on resume.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20231027122955.22123-1-francesco@dolcini.it
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/phy')
| -rw-r--r-- | drivers/usb/phy/phy-generic.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index 770081b828a4..9ab50f26db60 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -46,15 +46,21 @@ 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); + int ret = 0; - if (!IS_ERR(nop->clk)) { - if (suspend) + if (suspend) { + if (!IS_ERR(nop->clk)) clk_disable_unprepare(nop->clk); - else + if (!IS_ERR(nop->vcc) && !device_may_wakeup(x->dev)) + ret = regulator_disable(nop->vcc); + } else { + if (!IS_ERR(nop->vcc) && !device_may_wakeup(x->dev)) + ret = regulator_enable(nop->vcc); + if (!IS_ERR(nop->clk)) clk_prepare_enable(nop->clk); } - return 0; + return ret; } static void nop_reset(struct usb_phy_generic *nop) |