Hi again, On Tue, Jan 14, 2014 at 07:10:52AM -0600, Felipe Balbi wrote: > > diff --git a/drivers/hwspinlock/omap_hwspinlock.c > > b/drivers/hwspinlock/omap_hwspinlock.c > > index 9f56fb2..194886e 100644 > > --- a/drivers/hwspinlock/omap_hwspinlock.c > > +++ b/drivers/hwspinlock/omap_hwspinlock.c > > @@ -101,10 +101,23 @@ static int omap_hwspinlock_probe(struct > > platform_device *pdev) > > if (!io_base) > > return -ENOMEM; > > > > + /* > > + * make sure the module is enabled and clocked before reading > > + * the module SYSSTATUS register > > + */ > > + pm_runtime_enable(&pdev->dev); > > + pm_runtime_get_sync(&pdev->dev);
another thing, you need to check return of pm_runtime_get_sync() -- balbi
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