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Date: Tue, 14 Feb 2012 09:35:58 +0000 From: Chris Wilson <chris@...is-wilson.co.uk> To: Daniel Vetter <daniel@...ll.ch> Cc: Daniel Vetter <daniel@...ll.ch>, Benson Leung <bleung@...omium.org>, keithp@...thp.com, airlied@...ux.ie, djkurtz@...omium.org, linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org Subject: Re: [PATCH] drm/i915: Fix single msg gmbus_xfers writes On Mon, 13 Feb 2012 23:26:23 +0100, Daniel Vetter <daniel@...ll.ch> wrote: > On Mon, Feb 13, 2012 at 09:49:35PM +0000, Chris Wilson wrote: > > On Mon, 13 Feb 2012 21:38:38 +0100, Daniel Vetter <daniel@...ll.ch> wrote: > > However, the outstanding issue is that we need to separate the gmbus > > i2c adapter from the gpio i2c adapter in order for the pairing to work > > with the expectations of the i2c core. > > There's another patch floating on dri-devel to add a gmbus_mutex. The > issue it tries to avoid is that multiple users corrupting each anothers > state when using the single gmbus controller. See "[PATCH] [PATCH] > drm/i915: Fix race condition in accessing GMBUS". Or have you thought of > another interaction that we need to sort out? The GMBUS interface is currently disabled because we confused the i2c core. https://bugzilla.kernel.org/show_bug.cgi?id=35572 -Chris -- Chris Wilson, Intel Open Source Technology Centre -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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