Hi, On Tue, Feb 12, 2013 at 01:38:52PM +0530, Vivek Gautam wrote: > Sorry for coming so late on this series :-(, was away actually. > Just trying with patches in 'dwc3-dev-pm-ops' branch of your tree.
np
> On Mon, Feb 11, 2013 at 3:22 PM, Felipe Balbi <ba...@ti.com> wrote:
> > Add support for basic power management on
> > the dwc3 driver. While there is still lots
> > to improve for full PM support, this minimal
> > patch will already make sure that we survive
> > suspend-to-ram and suspend-to-disk without
> > major issues.
> >
> > Cc: Vikas C Sajjan <vikas.saj...@linaro.org>
> > Signed-off-by: Felipe Balbi <ba...@ti.com>
> > ---
> > drivers/usb/dwc3/core.c | 108
> > ++++++++++++++++++++++++++++++++++++++++++++++
> > drivers/usb/dwc3/core.h | 6 +++
> > drivers/usb/dwc3/gadget.c | 57 ++++++++++++++++++++++++
> > 3 files changed, 171 insertions(+)
> >
> > diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
> > index fb93918..466b894 100644
> > --- a/drivers/usb/dwc3/core.c
> > +++ b/drivers/usb/dwc3/core.c
> > @@ -583,11 +583,119 @@ static int dwc3_remove(struct platform_device *pdev)
> > return 0;
> > }
> >
> > +#ifdef CONFIG_PM
> > +static int dwc3_prepare(struct device *dev)
> > +{
> > + struct dwc3 *dwc = dev_get_drvdata(dev);
> > + unsigned long flags;
> > +
> > + spin_lock_irqsave(&dwc->lock, flags);
> > +
> > + switch (dwc->mode) {
> > + case DWC3_MODE_DEVICE:
> > + case DWC3_MODE_DRD:
> > + dwc3_gadget_prepare(dwc);
>
> Compiling Host only mode of DWC3 will give linker error :-(
>
> drivers/built-in.o: In function `dwc3_resume':
> drivers/usb/dwc3/core.c:675: undefined reference to `dwc3_gadget_resume'
> drivers/built-in.o: In function `dwc3_suspend':
> drivers/usb/dwc3/core.c:649: undefined reference to `dwc3_gadget_suspend'
> drivers/built-in.o: In function `dwc3_complete':
> drivers/usb/dwc3/core.c:628: undefined reference to `dwc3_gadget_complete'
> drivers/built-in.o: In function `dwc3_prepare':
> drivers/usb/dwc3/core.c:605: undefined reference to `dwc3_gadget_prepare'
>
> we will need to check the "mode" here, since dwc3/gadget.c won't be
> compiling for Host only mode.
nice catch, I'll fix that up :-)
--
balbi
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