linux-kernel - Re: [PATCH] drm: atmel-hlcdc: Atomic mode-setting conversion

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Date:	Fri, 6 Feb 2015 09:16:11 +0100
From:	Daniel Vetter <daniel@...ll.ch>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:	Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...ux.ie>,
	dri-devel@...ts.freedesktop.org,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] drm: atmel-hlcdc: Atomic mode-setting conversion

On Thu, Feb 05, 2015 at 04:37:56PM +0100, Boris Brezillon wrote:
> On Thu, 5 Feb 2015 14:08:32 +0100
> Daniel Vetter <daniel@...ll.ch> wrote:
> 
> > On Wed, Feb 04, 2015 at 09:20:51PM +0100, Boris Brezillon wrote:
> > > Convert the HLCDC driver to atomic mode-setting.
> > > 
> > > Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
> > 
> > Just a quick comment: dpms isn't yet converted over, and from experience
> > with tegra/msm that probably will yield some surprises. Since only with
> > dpms will it be obvious how strict the added requirements from the atomic
> > helpers are ;-)
> 
> Yes, I noticed I was not using the appropriate dpms helper in the
> connector funcs just after sending this patch.
> 
> Would this patch [1] address what you're talking about, or am I still
> missing something ?
> 
> Thanks,
> 
> Boris
> 
> [1]http://code.bulix.org/l70xf4-87827

You should be able to bin all your dpms implementations too, at least if
you switch to the new enable/disable hooks for crtc/encoder.
prepare/commit/dpms are all depcrecated (for both crtc and encoder) and
shouldn't be needed any more.  Same with crtc_funcs->mode_set.

But yeah the functional change should be all there is, if it still works
you're all set.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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