Hi,
> On Fri, Jul 18, 2014 at 11:31:29AM +0200, Lothar Waßmann wrote:
> > This patch makes it possible to use the musb driver with HW that
> > requires external regulators or clocks.
>
> can you provide an example of such HW ? Are you not using the internal
> PHYs ?
>
The Ka-Ro electronics TX48 module uses the mmc0_clk pin as VBUSEN
rathern than usb0_drvvbus. This patch makes it possible to use an
external regulator to handle the VBUS switch through the 'vcc-supply'
property of the underlying generic_phy device.
> > Signed-off-by: Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx>
> > ---
> > drivers/usb/phy/phy-am335x.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
> > index 6522fa7..de25674 100644
> > --- a/drivers/usb/phy/phy-am335x.c
> > +++ b/drivers/usb/phy/phy-am335x.c
> > @@ -22,6 +22,7 @@ static int am335x_init(struct usb_phy *phy)
> > {
> > struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);
> >
> > + usb_gen_phy_init(phy);
> > phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true);
> > return 0;
> > }
> > @@ -31,6 +32,7 @@ static void am335x_shutdown(struct usb_phy *phy)
> > struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);
> >
> > phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false);
> > + usb_gen_phy_shutdown(phy);
> > }
> >
> > static int am335x_phy_probe(struct platform_device *pdev)
> > --
> > 1.7.10.4
> >
>
--
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