Messages in this thread | | | From | Jeremy Kerr <> | Subject | Re: [RFC,PATCH 1/2] Add a common struct clk | Date | Fri, 11 Jun 2010 18:50:30 +0800 |
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Hi Lothar,
> You may want to disable a clock in the IRQ handler. The VPU driver in > the Freescale BSP for i.MX51 does exactly this.
Is this something we can defer to a sleepable context?
> Anyway I don't see any reason for using a mutex here instead of > spin_lock_irq_save() as all other implementations do.
Just that enable/disable may take an arbitrarily long time to complete. Sounds like that hasn't been a problem in the past though.
Cheers,
Jeremy
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