Messages in this thread | | | Date | Wed, 10 Aug 2011 09:31:42 -0700 | From | Todd Poynor <> | Subject | Re: [PATCH 5/5 v4] mfd: omap: usb: Runtime PM support |
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On Tue, Aug 09, 2011 at 07:45:09PM +0530, Keshava Munegowda wrote: > From: Keshava Munegowda <Keshava_mgowda@ti.com> > > The usbhs core driver does not enable/disable the intefrace and
typo: interface
> fucntional clocks; These clocks are handled by hwmod and runtime pm,
typo: functional
> hence insted of the clock enable/disable, the runtime pm APIS are > used. however,the port clocks are handled by the usbhs core. > > Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
... > @@ -913,12 +598,15 @@ static int usbhs_enable(struct device *dev) > (pdata->ehci_data->reset_gpio_port[1], 1); > } > > -end_count: > - omap->count++; > + pm_runtime_put_sync(dev); > spin_unlock_irqrestore(&omap->lock, flags);
Is pm_runtime_irq_safe() needed (else I think runtime PM callbacks may re-enable IRQs... or there's the new *_suspend runtime PM calls that may avoid this)?
... > @@ -266,10 +261,12 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) > struct usb_hcd *hcd = dev_get_drvdata(dev); > > usb_remove_hcd(hcd); > - omap_usbhs_disable(dev); > disable_put_regulator(dev->platform_data); > - iounmap(hcd->regs); > usb_put_hcd(hcd); > + iounmap(hcd->regs);
usb_put_hcd may release the hcd, needs to be after the deref for iounmap.
> + pm_runtime_put_sync(dev); > + pm_runtime_disable(dev);
Todd
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