linux-kernel - Re: [Patch 0/1]drm_irq: Introducing the irq

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Message-ID: <20120905153204.GD5357@phenom.ffwll.local>
Date:	Wed, 5 Sep 2012 17:32:04 +0200
From:	Daniel Vetter <daniel@...ll.ch>
To:	"Shi, Yang A" <yang.a.shi@...el.com>
Cc:	Daniel Vetter <daniel@...ll.ch>,
	"Liu, Chuansheng" <chuansheng.liu@...el.com>,
	"'linux-kernel@...r.kernel.org' (linux-kernel@...r.kernel.org)" 
	<linux-kernel@...r.kernel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"alexander.deucher@....com" <alexander.deucher@....com>,
	"airlied@...hat.com" <airlied@...hat.com>
Subject: Re: [Patch 0/1]drm_irq: Introducing the irq_thread support

On Wed, Sep 05, 2012 at 03:12:39PM +0000, Shi, Yang A wrote:
> Hi Vetter:
> 
>     Do you mean we can just not use drm_irq_install, and make
>     request_irq in our kernel driver pre-install or post-install
>     interface?

Well, you cant use the pre_install/post_install hooks the drm_irq code
provides, but yes, just do the request_irq in your driver code at the
right time, with the right parameters. Much easier than adding code to a
part of the drm core fraught with backwards-compat stuff no one really
wants to touch ... All the additional stuff besides calling request_irq
and the driver hooks that drm_irq_install does is really just to support
old dri1 userspace.

Yours, Daniel
-- 
Daniel Vetter
Mail: daniel@...ll.ch
Mobile: +41 (0)79 365 57 48
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