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From: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
To: Russell King - ARM Linux admin <linux@armlinux.org.uk>,
	Emil Velikov <emil.velikov@collabora.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org,
	Joonyoung Shim <jy0922.shim@samsung.com>,
	Maxime Ripard <maxime.ripard@bootlin.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Inki Dae <inki.dae@samsung.com>, David Airlie <airlied@linux.ie>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Kukjin Kim <kgene@kernel.org>,
	dri-devel@lists.freedesktop.org, kernel@collabora.com,
	Sean Paul <sean@poorly.run>,
	linux-kernel@vger.kernel.org, m.szyprowski@samsung.com
Subject: Re: [PATCH 0/2] Associate ddc adapters with connectors
Date: Wed, 26 Jun 2019 08:50:47 +0200	[thread overview]
Message-ID: <3fb19371-db7d-f9dc-31a7-1ccd126f6784@collabora.com> (raw)
In-Reply-To: <20190625142031.GV12905@phenom.ffwll.local>

W dniu 25.06.2019 o 16:20, Daniel Vetter pisze:
> On Tue, Jun 25, 2019 at 03:10:32PM +0100, Russell King - ARM Linux admin wrote:
>> On Tue, Jun 25, 2019 at 04:07:55PM +0200, Daniel Vetter wrote:
>>> Otherwise I like this. Biggest problem I'm seeing here is rolling this out
>>> everywhere, this is a lot of work. And without widespread adoptions it's
>>> not terribly useful for userspace.
>>
>> There will be cases where it's not possible, because the I2C bus is
>> hidden behind a chip that doesn't give you direct access to the DDC
>> bus.
> 
> Oh sure, plus lots of connectors where there's just not ddc bus at all.
> But if we only roll this out for a handful of drivers it's also not great,
> that's what I meant. Looking at
> 
> $ git grep drm_do_get_edid
> 
> there's only very few drivers where the ddc bus is hidden. There's a lot
> more where it's not, and I think a big series to tackle those would serve
> extremely well to make a case for this sysfs link.
> -Daniel
> 

I will respond with a v3 then, including as many drivers as possible.
Those will be compile-tested only, though.

Andrzej

  reply	other threads:[~2019-06-26  6:50 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-25  9:46 [PATCH 0/2] Associate ddc adapters with connectors Andrzej Pietrasiewicz
2019-06-25  9:46 ` [PATCH 1/2] drm: Include ddc adapter pointer in struct drm_connector Andrzej Pietrasiewicz
2019-06-25  9:46 ` [PATCH 2/2] drm/exynos: Provide ddc symlink in connector's sysfs Andrzej Pietrasiewicz
2019-06-25 10:03 ` [PATCH 0/2] Associate ddc adapters with connectors Russell King - ARM Linux admin
2019-06-25 10:14   ` Andrzej Pietrasiewicz
2019-06-25 10:16     ` Russell King - ARM Linux admin
2019-06-25 10:24       ` [PATCH v2 " Andrzej Pietrasiewicz
2019-06-25 10:24         ` [PATCH v2 1/2] drm: Include ddc adapter pointer in struct drm_connector Andrzej Pietrasiewicz
2019-06-25 14:21           ` Daniel Vetter
2019-06-25 10:24         ` [PATCH v2 2/2] drm/exynos: Provide ddc symlink in connector's sysfs Andrzej Pietrasiewicz
2019-06-25 13:36     ` [PATCH 0/2] Associate ddc adapters with connectors Emil Velikov
2019-06-25 14:07       ` Daniel Vetter
2019-06-25 14:10         ` Russell King - ARM Linux admin
2019-06-25 14:20           ` Daniel Vetter
2019-06-26  6:50             ` Andrzej Pietrasiewicz [this message]
     [not found]               ` <cover.1561735433.git.andrzej.p@collabora.com>
     [not found]                 ` <d6381c020ea1c848a7044d830bdb0ec9663d1619.1561735433.git.andrzej.p@collabora.com>
     [not found]                   ` <9b03d145-ec50-927c-55a8-dff1cd51d655@suse.de>
     [not found]                     ` <cf1984e4-50af-302d-ef67-9ad530118c29@collabora.com>
     [not found]                       ` <CGME20190701144119epcas1p211ec60b63f3c6ae02392e2ae67f1a4ba@epcas1p2.samsung.com>
     [not found]                         ` <9e65f3c0-941d-d04c-5745-6b3a2965b990@suse.de>
2019-07-05  9:44                           ` [PATCH v3 01/22] drm: Include ddc adapter pointer in struct drm_connector Andrzej Hajda

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