On Tue, Feb 18, 2014 at 10:50:32AM -0600, Felipe Balbi wrote:
> On Fri, Dec 27, 2013 at 10:38:40AM +0800, Peter Chen wrote:
> > We need this to keep PHY's power on or off during the system
> > suspend mode. If we need to enable USB wakeup, then we
> > must keep PHY's power being on during the system suspend mode.
> > Otherwise, we need to keep PHY's power being off to save power.
> >
> > Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
> > ---
> > drivers/usb/phy/phy-mxs-usb.c | 61 +++++++++++++++++++++++++++++++++++++++++
> > 1 files changed, 61 insertions(+), 0 deletions(-)
> >
> > diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
> > index 96aac05..53b8dad 100644
> > --- a/drivers/usb/phy/phy-mxs-usb.c
> > +++ b/drivers/usb/phy/phy-mxs-usb.c
> > @@ -57,6 +57,10 @@
> > #define BM_USBPHY_DEBUG_CLKGATE BIT(30)
> >
> > /* Anatop Registers */
> > +#define ANADIG_ANA_MISC0 0x150
> > +#define ANADIG_ANA_MISC0_SET 0x154
> > +#define ANADIG_ANA_MISC0_CLR 0x158
> > +
> > #define ANADIG_USB1_VBUS_DET_STAT 0x1c0
> > #define ANADIG_USB2_VBUS_DET_STAT 0x220
> >
> > @@ -65,6 +69,9 @@
> > #define ANADIG_USB2_LOOPBACK_SET 0x244
> > #define ANADIG_USB2_LOOPBACK_CLR 0x248
> >
> > +#define BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG BIT(12)
> > +#define BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG_SL BIT(11)
> > +
> > #define BM_ANADIG_USB1_VBUS_DET_STAT_VBUS_VALID BIT(3)
> > #define BM_ANADIG_USB2_VBUS_DET_STAT_VBUS_VALID BIT(3)
> >
> > @@ -134,6 +141,16 @@ struct mxs_phy {
> > int port_id;
> > };
> >
> > +static inline bool is_imx6q_phy(struct mxs_phy *mxs_phy)
> > +{
> > + return mxs_phy->data == &imx6q_phy_data;
> > +}
> > +
> > +static inline bool is_imx6sl_phy(struct mxs_phy *mxs_phy)
> > +{
> > + return mxs_phy->data == &imx6sl_phy_data;
> > +}
> > +
> > static int mxs_phy_hw_init(struct mxs_phy *mxs_phy)
> > {
> > int ret;
> > @@ -382,6 +399,8 @@ static int mxs_phy_probe(struct platform_device *pdev)
> >
> > platform_set_drvdata(pdev, mxs_phy);
> >
> > + device_set_wakeup_capable(&pdev->dev, true);
> > +
> > ret = usb_add_phy_dev(&mxs_phy->phy);
> > if (ret)
> > return ret;
> > @@ -398,6 +417,47 @@ static int mxs_phy_remove(struct platform_device *pdev)
> > return 0;
> > }
> >
> > +#ifdef CONFIG_PM_SLEEP
>
> please use CONFIG_PM instead.
>
No.
See kernel/power/Kconfig
config PM_SLEEP
def_bool y
depends on SUSPEND || HIBERNATE_CALLBACKS
config PM
def_bool y
depends on PM_SLEEP || PM_RUNTIME
Here, we need suspend API for system suspend, if PM_RUNTIME
is enabled, but PM_SLEEP is disabled, we don't hope
this function is defined.
--
Best Regards,
Peter Chen
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