On Mon, Jul 16, 2012 at 02:10:23PM +0200, Marc Kleine-Budde wrote:
> On 07/12/2012 09:01 AM, Richard Zhao wrote:
> > set_vbus_power is used to enable or disable vbus power for usb host.
> >
> > Signed-off-by: Richard Zhao <richard.z...@freescale.com>
> > ---
> > drivers/usb/chipidea/ci13xxx_imx.c | 39
> > +++++++++++++++++++++++++-----------
> > drivers/usb/chipidea/host.c | 8 ++++++++
> > include/linux/usb/chipidea.h | 2 ++
> > 3 files changed, 37 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/usb/chipidea/ci13xxx_imx.c
> > b/drivers/usb/chipidea/ci13xxx_imx.c
> > index c94e30f..b3173d8 100644
> > --- a/drivers/usb/chipidea/ci13xxx_imx.c
> > +++ b/drivers/usb/chipidea/ci13xxx_imx.c
> > @@ -26,6 +26,8 @@
> >
> > #define pdev_to_phy(pdev) \
> > ((struct usb_phy *)platform_get_drvdata(pdev))
> > +#define ci_to_imx_data(ci) \
> > + ((struct ci13xxx_imx_data *)dev_get_drvdata(ci->dev->parent))
> >
> > struct ci13xxx_imx_data {
> > struct device_node *phy_np;
> > @@ -35,12 +37,32 @@ struct ci13xxx_imx_data {
> > struct regulator *reg_vbus;
> > };
> >
> > +static int ci13xxx_imx_vbus(struct ci13xxx *ci, int enable)
> > +{
> > + struct ci13xxx_imx_data *data = ci_to_imx_data(ci);
> > + int ret;
> > +
> > + if (!data->reg_vbus)
> > + return 0;
> > +
> > + if (enable)
> > + ret = regulator_enable(data->reg_vbus);
> > + else
> > + ret = regulator_disable(data->reg_vbus);
> > + if (ret)
> > + dev_err(ci->dev, "ci13xxx_imx_vbus failed, enable:%d err:%d\n",
> > + enable, ret);
> > +
> > + return ret;
> > +}
> > +
> > static struct ci13xxx_platform_data ci13xxx_imx_platdata __devinitdata = {
> > .name = "ci13xxx_imx",
> > .flags = CI13XXX_REQUIRE_TRANSCEIVER |
> > CI13XXX_PULLUP_ON_VBUS |
> > CI13XXX_DISABLE_STREAMING,
> > .capoffset = DEF_CAPOFFSET,
> > + .set_vbus_power = ci13xxx_imx_vbus,
> > };
> >
> > static int __devinit ci13xxx_imx_probe(struct platform_device *pdev)
> > @@ -101,18 +123,10 @@ static int __devinit ci13xxx_imx_probe(struct
> > platform_device *pdev)
> >
> > /* we only support host now, so enable vbus here */
>
> With this patch, the comment becomes wrong.
Good catch.
Thanks
Richard
>
> > reg_vbus = devm_regulator_get(&pdev->dev, "vbus");
> > - if (!IS_ERR(reg_vbus)) {
> > - ret = regulator_enable(reg_vbus);
> > - if (ret) {
> > - dev_err(&pdev->dev,
> > - "Failed to enable vbus regulator, err=%d\n",
> > - ret);
> > - goto put_np;
> > - }
> > + if (!IS_ERR(reg_vbus))
> > data->reg_vbus = reg_vbus;
> > - } else {
> > + else
> > reg_vbus = NULL;
> > - }
> >
>
> Marc
>
> --
> Pengutronix e.K. | Marc Kleine-Budde |
> Industrial Linux Solutions | Phone: +49-231-2826-924 |
> Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
> Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
>
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