Re: [PATCH 2/2] drivers/video: fsl-diu-fb: fix bugs in interrupt handling

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On Thu, 17 Jan 2013 16:20:04 -0600
Timur Tabi <timur@xxxxxxxx> wrote:
...
> This is why you need hacks like can_handle_irq.  So I'm not crazy about
> this patch.  I think you need to get rid of can_handle_irq and allow the
> interrupt handler to be registered before the hardware is initialized.

It makes sense. More testing shows that disabling interrupts in
fsl_diu_release() needs to be fixed, too. If the fb0 plane is opened
(i.e. by fbcon) and another app opens an overlay plane i.e. on /dev/fb1
and then closes it, the diu interrupts will be disabled, even though the
first plane is still opened.

Thanks,

Anatolij
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