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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	dri-devel@lists.freedesktop.org, Archit Taneja <archit@ti.com>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	Dave Airlie <airlied@redhat.com>
Subject: Re: [PATCH 6/7] drm/rcar: gem: dumb: pitch is an output
Date: Thu, 06 Nov 2014 20:17:54 +0200	[thread overview]
Message-ID: <3531784.5s6HZR2TGh@avalon> (raw)
In-Reply-To: <20141106005451.GM4042@n2100.arm.linux.org.uk>

Hi Russell,

On Thursday 06 November 2014 00:54:51 Russell King - ARM Linux wrote:
> On Wed, Nov 05, 2014 at 08:47:07PM +0200, Laurent Pinchart wrote:
> > (On a side note I believe treating the pitch and size arguments as inputs
> > could be a worthwhile extension to the API, but given that we haven't
> > rejected incorrect values in the past we're pretty much stuck).
> 
> The bigger picture here is that it is a generic interface to DRM
> drivers, and having different behaviour from different drivers is
> itself impractical.

I totally agree with you, I just believe it would have been nice to be able to 
extend the API that way, but that's no big deal. Consistency is definitely 
important.

> If nothing breaks through better enforcement of the API, then we
> should go with what the API is currently defined to be, rather than
> trying to overload it with new features - and then end up in the
> situation where we have something trying to use those new features
> and no way to know if the driver implements this "bug" or not.

-- 
Regards,

Laurent Pinchart

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  reply	other threads:[~2014-11-06 18:17 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-05 13:25 [PATCH 0/7] drm: Sanitize DRM_IOCTL_MODE_CREATE_DUMB input Thierry Reding
2014-11-05 13:25 ` [PATCH 1/7] drm/gem: Fix a few kerneldoc typos Thierry Reding
2014-11-05 14:18   ` Daniel Vetter
2014-11-05 13:25 ` [PATCH 2/7] drm/doc: mm: Fix indentation Thierry Reding
2014-11-05 14:19   ` Daniel Vetter
2014-11-05 13:25 ` [PATCH 3/7] drm/doc: Add GEM/CMA helpers to kerneldoc Thierry Reding
2014-11-05 14:34   ` Daniel Vetter
2014-11-05 15:01     ` Thierry Reding
2014-11-05 15:04       ` Daniel Vetter
2014-11-05 15:16         ` Thierry Reding
2014-11-05 13:25 ` [PATCH 4/7] drm/cma: Introduce drm_gem_cma_dumb_create_internal() Thierry Reding
2014-11-05 14:36   ` Daniel Vetter
2014-11-05 13:25 ` [PATCH 5/7] drm/omap: gem: dumb: pitch is an output Thierry Reding
2014-11-05 14:38   ` Daniel Vetter
2014-11-05 13:25 ` [PATCH 6/7] drm/rcar: " Thierry Reding
2014-11-05 14:39   ` Daniel Vetter
2014-11-05 18:47   ` Laurent Pinchart
2014-11-06  0:54     ` Russell King - ARM Linux
2014-11-06 18:17       ` Laurent Pinchart [this message]
2014-11-05 13:25 ` [PATCH 7/7] drm: Sanitize DRM_IOCTL_MODE_CREATE_DUMB input Thierry Reding
2014-11-05 14:42   ` Daniel Vetter
2014-11-05 14:24 ` [PATCH 0/7] " Russell King - ARM Linux
2014-11-05 14:45   ` Thierry Reding
2014-11-05 15:01   ` Daniel Vetter
2014-11-06 15:49 ` [PATCH v2 0/8] " Thierry Reding
2014-11-06 15:49   ` [PATCH v2 1/8] drm/gem: Fix a few kerneldoc typos Thierry Reding
2014-11-06 15:49   ` [PATCH v2 2/8] drm/doc: mm: Fix indentation Thierry Reding
2014-11-06 15:49   ` [PATCH v2 3/8] drm/doc: Add GEM/CMA helpers to kerneldoc Thierry Reding
2014-11-06 20:05     ` Daniel Vetter
2014-11-06 15:49   ` [PATCH v2 4/8] drm/cma: Introduce drm_gem_cma_dumb_create_internal() Thierry Reding
2014-11-06 15:49   ` [PATCH v2 5/8] drm/omap: gem: dumb: pitch is an output Thierry Reding
2014-11-06 22:23     ` Rob Clark
2014-11-07  8:02     ` Tomi Valkeinen
2014-11-06 15:49   ` [PATCH v2 6/8] drm/rcar: " Thierry Reding
2014-11-06 15:49   ` [PATCH v2 7/8] drm: Sanitize DRM_IOCTL_MODE_CREATE_DUMB input Thierry Reding
2014-11-06 15:49   ` [PATCH v2 8/8] drm/cma: Remove call to drm_gem_free_mmap_offset() Thierry Reding
2014-11-06 20:06     ` Daniel Vetter

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