linux-kernel - RE: [PATCH v2 3/3] pch_gpio: support interrupt function

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Message-ID: <1AE0D718B2974BCBA409AF045602867F@hacdom.okisemi.com>
Date:	Fri, 27 May 2011 17:28:25 +0900
From:	"Tomoya MORINAGA" <tomoya-linux@....okisemi.com>
To:	"'Grant Likely'" <grant.likely@...retlab.ca>
Cc:	<linux-kernel@...r.kernel.org>,
	<alexander.stein@...tec-electronic.com>, <qi.wang@...el.com>,
	<yong.y.wang@...el.com>, <joel.clark@...el.com>,
	<kok.howg.ewe@...el.com>, <toshiharu-linux@....okisemi.com>
Subject: RE: [PATCH v2 3/3] pch_gpio: support interrupt function

Hi Grant,

On Friday, May 27, 2011 4:09 PM, Grant Likely wrote:
> Take a look at the new irq_chip_generic infrastructure.  You 
> don't need to implement a memory mapped irq controller from 
> scratch anymore.
> Most of the access functions can be taken directly from 
> irq_chip_generic instead. 

Let me clarify your saying.
  a) We shouldn't use request_irq( ) ?
  b) Does Your  "irq_chip_generic" mean irq_set_handler_data( ) / irq_set_chained_handler( ) ?
      If yes, Using these functions, I saw IRQ shared other function's interrupt becomes invalid.

With Best Regards,
-----------------------------------------
Tomoya MORINAGA
OKI SEMICONDUCTOR CO., LTD.

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