From: Inki Dae <inki.dae@samsung.com>
To: "'Mark Brown'" <broonie@kernel.org>
Cc: "'Olof Johansson'" <olof@lixom.net>,
"'Sean Paul'" <seanpaul@chromium.org>,
devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
"'DRI mailing list'" <dri-devel@lists.freedesktop.org>,
linux-arm-kernel@lists.infradead.org
Subject: RE: [PATCH 3/5] drm/bridge: Add PTN3460 bridge driver
Date: Thu, 10 Oct 2013 20:40:38 +0900 [thread overview]
Message-ID: <063a01cec5ad$8afd1920$a0f74b60$%dae@samsung.com> (raw)
In-Reply-To: <20131010093708.GC21581@sirena.org.uk>
> -----Original Message-----
> From: Mark Brown [mailto:broonie@kernel.org]
> Sent: Thursday, October 10, 2013 6:37 PM
> To: Inki Dae
> Cc: 'Olof Johansson'; 'Sean Paul'; devicetree@vger.kernel.org; linux-
> samsung-soc@vger.kernel.org; linux-doc@vger.kernel.org; linux-
> kernel@vger.kernel.org; 'DRI mailing list'; linux-arm-
> kernel@lists.infradead.org
> Subject: Re: [PATCH 3/5] drm/bridge: Add PTN3460 bridge driver
>
> On Thu, Oct 10, 2013 at 01:18:05PM +0900, Inki Dae wrote:
>
> > > > I still think the pin could be replaced with a regulator. But
> > > > lvds-bridge node has "powerdown-gpio" property - it say this board
> > > > will use gpio pin - specific to board. So it seems no problem.
>
> > > No, don't model things that aren't regulators as regulators - it's
> > > just confusing from a usability standpoint and causes breakage when
> > > the pins don't behave like regulators.
>
> > It seems that there was your missing point. That _is not_ what I
> mentioned.
> > I mean that other boards can use a regulator instead of gpio pin.
>
> What I'm saying is no boards should use a regulator to control that GPIO
> pin, obviously if they're controlling the actual regulators that's fine
That is what I mentioned. Some boards _could control_ the actual regulator
for lvds-bridge, and that would be depended on how HW engineer designs the
board.
> but the reset signal should not be controlled via the regulator API (there
> are some unfortunate cases where people have done that already but let's
> not have any more).
next prev parent reply other threads:[~2013-10-10 11:40 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-01 23:40 [PATCH 0/5] Add some missing bits for exynos5250-snow Sean Paul
2013-10-01 23:40 ` [PATCH 1/5] ARM: dts: Add fimd display-timings " Sean Paul
2013-10-01 23:40 ` [PATCH 2/5] ARM: dts: Add dp-controller node to exynos5250-snow Sean Paul
2013-10-02 21:10 ` Olof Johansson
2013-10-03 16:06 ` Sean Paul
2013-10-01 23:40 ` [PATCH 3/5] drm/bridge: Add PTN3460 bridge driver Sean Paul
2013-10-02 21:20 ` Olof Johansson
2013-10-03 13:55 ` Inki Dae
2013-10-03 14:57 ` Sean Paul
2013-10-03 17:39 ` Inki Dae
2013-10-03 18:01 ` Olof Johansson
2013-10-04 2:05 ` Inki Dae
2013-10-09 18:29 ` Mark Brown
2013-10-10 4:18 ` Inki Dae
2013-10-10 9:37 ` Mark Brown
2013-10-10 11:40 ` Inki Dae [this message]
2013-10-10 12:23 ` Mark Brown
2013-10-03 18:09 ` Sean Paul
2013-10-03 18:23 ` Inki Dae
2013-10-03 18:32 ` Sean Paul
2013-10-04 1:59 ` Inki Dae
2013-10-01 23:40 ` [PATCH 4/5] drm/exynos: Initialize ptn3460 if present Sean Paul
2013-10-03 14:43 ` Inki Dae
2013-10-03 15:02 ` Sean Paul
2013-10-03 17:18 ` Inki Dae
2013-10-03 17:27 ` Sean Paul
2013-10-03 18:10 ` Inki Dae
2013-10-01 23:41 ` [PATCH 5/5] ARM: dts: Add ptn3460 to exynos5250-snow Sean Paul
2013-10-02 21:07 ` [PATCH 0/5] Add some missing bits for exynos5250-snow Olof Johansson
2013-10-03 22:28 ` [PATCH v2 " Sean Paul
2013-10-03 22:28 ` [PATCH v2 1/5] ARM: dts: Add fimd display-timings " Sean Paul
2013-10-04 2:20 ` Jingoo Han
2013-10-03 22:28 ` [PATCH v2 2/5] ARM: dts: Add dp-controller node to exynos5250-snow Sean Paul
2013-10-04 2:24 ` Jingoo Han
2013-10-03 22:28 ` [PATCH v2 3/5] drm/bridge: Add PTN3460 bridge driver Sean Paul
2013-10-03 22:28 ` [PATCH v2 4/5] drm/exynos: Initialize ptn3460 if present Sean Paul
2013-10-04 2:29 ` Inki Dae
2013-10-04 2:41 ` Sean Paul
2013-10-04 4:18 ` Inki Dae
2013-10-04 14:17 ` Sean Paul
2013-10-04 15:01 ` Inki Dae
2013-10-04 15:04 ` Sean Paul
2013-10-04 16:01 ` Inki Dae
2013-10-03 22:28 ` [PATCH v2 5/5] ARM: dts: Add ptn3460 to exynos5250-snow Sean Paul
2013-10-03 22:35 ` [PATCH v2 0/5] Add some missing bits for exynos5250-snow Olof Johansson
2013-10-10 22:26 ` [PATCH v3 " Sean Paul
2013-10-10 22:26 ` [PATCH v3 1/5] ARM: dts: Add fimd display-timings " Sean Paul
2013-10-10 22:26 ` [PATCH v3 2/5] ARM: dts: Add dp-controller node to exynos5250-snow Sean Paul
2013-10-10 22:26 ` [PATCH v3 3/5] drm/bridge: Add PTN3460 bridge driver Sean Paul
2013-10-10 22:26 ` [PATCH v3 4/5] drm/exynos: Initialize ptn3460 if present Sean Paul
2013-10-10 22:26 ` [PATCH v3 5/5] ARM: dts: Add ptn3460 to exynos5250-snow Sean Paul
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