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 13:18:05 +0900 [thread overview]
Message-ID: <05c701cec56f$b79eea50$26dcbef0$%dae@samsung.com> (raw)
In-Reply-To: <20131009182905.GY21581@sirena.org.uk>
> -----Original Message-----
> From: Mark Brown [mailto:broonie@kernel.org]
> Sent: Thursday, October 10, 2013 3:29 AM
> 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 Fri, Oct 04, 2013 at 11:05:48AM +0900, Inki Dae wrote:
> > 2013/10/4 Olof Johansson <olof@lixom.net>:
>
> > > "If PD_N is LOW, then the device is in Deep power-down completely,
> > > even if supply rail is ON; for the device to be able to operate, the
> > > PD_N pin must be HIGH."
>
> > 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.
next prev parent reply other threads:[~2013-10-10 4:18 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
[not found] ` <1380670860-17621-1-git-send-email-seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
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
[not found] ` <CAAQKjZN_r-=-sj=Vb-o-KUS4ab5=cjCq1ni3VZeMeVc3NL=MMg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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 [this message]
2013-10-10 9:37 ` Mark Brown
2013-10-10 11:40 ` Inki Dae
2013-10-10 12:23 ` Mark Brown
[not found] ` <CAAQKjZPwyKCpju4Ndd+MB_aN24-zA5xTHFsFsun2617h7YT6dw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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
2013-10-02 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
[not found] ` <1380839303-4834-2-git-send-email-seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
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
[not found] ` <CAAQKjZMfP_Cgo5hPPTiwKa_+Ph+GUt2Fbdtipd5V=CQEDy3eSQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-04 14:17 ` Sean Paul
[not found] ` <CAOw6vbL_W-8S+htX9KB2ABbtr9+JhfxHuL2ikJG7CrqEkeo9NA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-04 15:01 ` Inki Dae
2013-10-04 15:04 ` Sean Paul
[not found] ` <CAOw6vbKm+N8ZNyL8HQNhm2TnQOD8---1DkxE-n1LxWz-Y2=MNw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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
2013-10-01 23:40 ` [PATCH 4/5] drm/exynos: Initialize ptn3460 if present Sean Paul
[not found] ` <1380670860-17621-5-git-send-email-seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
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
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