Thread (18 messages) 18 messages, 5 authors, 2012-09-19

Re: [PATCH 1/1] Input: ab8500-ponkey: Make the distinction between DT and non-DT boots

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From: Lee Jones <hidden>
Date: 2012-08-08 11:40:46
Also in: linux-arm-kernel, lkml

On Wed, Aug 08, 2012 at 10:49:52AM +0100, Mark Brown wrote:
On Wed, Aug 08, 2012 at 09:04:12AM +0100, Lee Jones wrote:
quoted
During non-DT boot:
 - Platform data is passed, which contains an IRQ base
 - If an IRQ base is requested we use it to register a Legacy IRQ Domain
 - MFD adds the IRQ base to the hwirq and registers it as a virq
Just don't do this step - the only reason to do it is for mapping back
into a linear domain but if you're going to do this...
quoted
 - AB8500 child devices use *_get_virq() to convert virq to virq - *ERROR*
...then it's redundant.  The mapping functions in the domain code
replace this functionality.
No, the other way round. This is now required all the time.

Now we force the use of hwirq, the driver needs to convert that into a
virq before requesting the resource. So we need to put *_get_virq()'s into
every child device that requests an IRQ.

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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