From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Rob Herring <robh@kernel.org>
Cc: Mike Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
David Airlie <airlied@linux.ie>,
Thierry Reding <thierry.reding@gmail.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-clk@vger.kernel.org,
dri-devel <dri-devel@lists.freedesktop.org>,
linux-sunxi <linux-sunxi@googlegroups.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Chen-Yu Tsai <wens@csie.org>, Hans de Goede <hdegoede@redhat.com>,
Alexander Kaplan <alex@nextthing.co>,
Wynter Woods <wynter@nextthing.co>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Rob Clark <robdclark@gmail.com>, Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH 09/19] drm: sun4i: Add DT bindings documentation
Date: Fri, 6 Nov 2015 14:32:29 -0800 [thread overview]
Message-ID: <20151106223229.GM6114@lukather> (raw)
In-Reply-To: <CAL_JsqLuUUApGAgdw7U8EJ7p5yrYJg8AKFB32AE9Ufrf47=WpQ@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 1562 bytes --]
Hi Rob,
On Fri, Oct 30, 2015 at 11:40:03AM -0500, Rob Herring wrote:
> > +Display Engine Backend
> > +----------------------
> > +
> > +The display engine backend exposes layers and sprites to the
> > +system. It's split into two components, the frontend and backend, the
> > +frontend doing formats conversion, scaling, deinterlacing, while the
> > +backend actually manages the layers.
> > +
> > +Required properties:
> > + - compatible: value must be one of:
> > + * allwinner,sun5i-a13-display-engine
> > +
> > + - reg: base address and size of the memory-mapped region. Two are needed:
> > + * backend0: registers of the display engine backend
> > + * frontend0: registers of the display engine frontend
>
> Why the zeros? I think they should be dropped.
We have SoCs that have two backends and two frontends, hence why I
added 0. I guess I can also add several devices for them, but then I'd
need to move to the component framework I guess (which was the plan anyway).
> > +
> > + - allwinner,tcon: phandle to the TCON in our pipeline
>
> Use of-graph or just let the relationship live in the driver. If there
> is only 1 instance of the blocks, the latter is fine.
We can also have several TCON instances in the SoC, and even though
you can on a theorical point of view use any TCON with any backend,
usually you're tied because of how the pins are routed on the boards.
Thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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WARNING: multiple messages have this Message-ID (diff)
From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Mike Turquette
<mturquette-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>,
Stephen Boyd <sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
Thierry Reding
<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dri-devel
<dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>,
linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>,
Laurent Pinchart
<laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>,
Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Alexander Kaplan <alex-MflLfwwFzuz+yO7R74ARew@public.gmane.org>,
Wynter Woods <wynter-MflLfwwFzuz+yO7R74ARew@public.gmane.org>,
Boris Brezillon
<boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Thomas Petazzoni
<thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Rob Clark <robdclark-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>
Subject: Re: [PATCH 09/19] drm: sun4i: Add DT bindings documentation
Date: Fri, 6 Nov 2015 14:32:29 -0800 [thread overview]
Message-ID: <20151106223229.GM6114@lukather> (raw)
In-Reply-To: <CAL_JsqLuUUApGAgdw7U8EJ7p5yrYJg8AKFB32AE9Ufrf47=WpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
[-- Attachment #1: Type: text/plain, Size: 1519 bytes --]
Hi Rob,
On Fri, Oct 30, 2015 at 11:40:03AM -0500, Rob Herring wrote:
> > +Display Engine Backend
> > +----------------------
> > +
> > +The display engine backend exposes layers and sprites to the
> > +system. It's split into two components, the frontend and backend, the
> > +frontend doing formats conversion, scaling, deinterlacing, while the
> > +backend actually manages the layers.
> > +
> > +Required properties:
> > + - compatible: value must be one of:
> > + * allwinner,sun5i-a13-display-engine
> > +
> > + - reg: base address and size of the memory-mapped region. Two are needed:
> > + * backend0: registers of the display engine backend
> > + * frontend0: registers of the display engine frontend
>
> Why the zeros? I think they should be dropped.
We have SoCs that have two backends and two frontends, hence why I
added 0. I guess I can also add several devices for them, but then I'd
need to move to the component framework I guess (which was the plan anyway).
> > +
> > + - allwinner,tcon: phandle to the TCON in our pipeline
>
> Use of-graph or just let the relationship live in the driver. If there
> is only 1 instance of the blocks, the latter is fine.
We can also have several TCON instances in the SoC, and even though
you can on a theorical point of view use any TCON with any backend,
usually you're tied because of how the pins are routed on the boards.
Thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
WARNING: multiple messages have this Message-ID (diff)
From: maxime.ripard@free-electrons.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 09/19] drm: sun4i: Add DT bindings documentation
Date: Fri, 6 Nov 2015 14:32:29 -0800 [thread overview]
Message-ID: <20151106223229.GM6114@lukather> (raw)
In-Reply-To: <CAL_JsqLuUUApGAgdw7U8EJ7p5yrYJg8AKFB32AE9Ufrf47=WpQ@mail.gmail.com>
Hi Rob,
On Fri, Oct 30, 2015 at 11:40:03AM -0500, Rob Herring wrote:
> > +Display Engine Backend
> > +----------------------
> > +
> > +The display engine backend exposes layers and sprites to the
> > +system. It's split into two components, the frontend and backend, the
> > +frontend doing formats conversion, scaling, deinterlacing, while the
> > +backend actually manages the layers.
> > +
> > +Required properties:
> > + - compatible: value must be one of:
> > + * allwinner,sun5i-a13-display-engine
> > +
> > + - reg: base address and size of the memory-mapped region. Two are needed:
> > + * backend0: registers of the display engine backend
> > + * frontend0: registers of the display engine frontend
>
> Why the zeros? I think they should be dropped.
We have SoCs that have two backends and two frontends, hence why I
added 0. I guess I can also add several devices for them, but then I'd
need to move to the component framework I guess (which was the plan anyway).
> > +
> > + - allwinner,tcon: phandle to the TCON in our pipeline
>
> Use of-graph or just let the relationship live in the driver. If there
> is only 1 instance of the blocks, the latter is fine.
We can also have several TCON instances in the SoC, and even though
you can on a theorical point of view use any TCON with any backend,
usually you're tied because of how the pins are routed on the boards.
Thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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next prev parent reply other threads:[~2015-11-06 22:32 UTC|newest]
Thread overview: 167+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-30 14:20 [PATCH 00/19] drm: Add Allwinner A10 display engine support Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 01/19] clk: sunxi: Add display clock Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 21:29 ` Stephen Boyd
2015-10-30 21:29 ` Stephen Boyd
2015-11-06 23:39 ` Maxime Ripard
2015-11-06 23:39 ` Maxime Ripard
2015-11-06 23:39 ` Maxime Ripard
2015-11-12 20:31 ` Stephen Boyd
2015-11-12 20:31 ` Stephen Boyd
2015-11-19 15:42 ` Maxime Ripard
2015-11-19 15:42 ` Maxime Ripard
2015-11-19 15:42 ` Maxime Ripard
2015-10-31 10:28 ` Chen-Yu Tsai
2015-10-31 10:28 ` Chen-Yu Tsai
2015-10-31 10:28 ` Chen-Yu Tsai
2015-11-06 19:42 ` Maxime Ripard
2015-11-06 19:42 ` Maxime Ripard
2015-11-06 19:42 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 02/19] clk: sunxi: Add PLL3 clock Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 21:32 ` Stephen Boyd
2015-10-30 21:32 ` Stephen Boyd
2015-10-30 21:32 ` Stephen Boyd
2015-10-30 14:20 ` [PATCH 03/19] clk: sunxi: Add TCON channel0 clock Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-31 10:19 ` Chen-Yu Tsai
2015-10-31 10:19 ` Chen-Yu Tsai
2015-11-06 22:11 ` Maxime Ripard
2015-11-06 22:11 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 04/19] clk: sunxi: Add TCON channel1 clock Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 21:37 ` Stephen Boyd
2015-10-30 21:37 ` Stephen Boyd
2015-11-07 0:11 ` Maxime Ripard
2015-11-07 0:11 ` Maxime Ripard
2015-11-07 0:11 ` Maxime Ripard
2015-10-31 9:53 ` Chen-Yu Tsai
2015-10-31 9:53 ` Chen-Yu Tsai
2015-10-31 9:53 ` Chen-Yu Tsai
2015-11-07 0:01 ` Maxime Ripard
2015-11-07 0:01 ` Maxime Ripard
2015-11-07 0:01 ` Maxime Ripard
2015-11-09 3:36 ` Chen-Yu Tsai
2015-11-09 3:36 ` Chen-Yu Tsai
2015-11-09 3:36 ` Chen-Yu Tsai
2015-11-19 15:35 ` Maxime Ripard
2015-11-19 15:35 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 05/19] clk: sunxi: add DRAM gates Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-11-09 4:18 ` Chen-Yu Tsai
2015-11-09 4:18 ` Chen-Yu Tsai
2015-11-09 4:18 ` Chen-Yu Tsai
2015-11-13 8:08 ` Chen-Yu Tsai
2015-11-13 8:08 ` Chen-Yu Tsai
2015-11-13 8:08 ` Chen-Yu Tsai
2015-11-19 15:43 ` Maxime Ripard
2015-11-19 15:43 ` Maxime Ripard
2015-11-19 15:43 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 06/19] clk: sunxi: Add Allwinner R8 AHB gates support Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 16:01 ` Chen-Yu Tsai
2015-10-30 16:01 ` Chen-Yu Tsai
2015-10-30 16:01 ` Chen-Yu Tsai
2015-10-30 16:33 ` Hans de Goede
2015-10-30 16:33 ` Hans de Goede
2015-10-30 16:33 ` Hans de Goede
2015-10-30 14:20 ` [PATCH 07/19] drm/panel: simple: Add timings for the Olimex LCD-OLinuXino-4.3TS Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 17:32 ` Thierry Reding
2015-10-30 17:32 ` Thierry Reding
2015-10-30 17:32 ` Thierry Reding
2015-11-07 0:44 ` Maxime Ripard
2015-11-07 0:44 ` Maxime Ripard
2015-11-07 0:44 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 08/19] drm: Add Allwinner A10 Display Engine support Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:44 ` Daniel Vetter
2015-10-30 14:44 ` Daniel Vetter
2015-11-11 22:14 ` Maxime Ripard
2015-11-11 22:14 ` Maxime Ripard
2015-11-11 22:14 ` Maxime Ripard
2015-11-16 15:04 ` Daniel Vetter
2015-11-16 15:04 ` Daniel Vetter
2015-11-16 15:04 ` Daniel Vetter
2015-10-30 14:20 ` [PATCH 09/19] drm: sun4i: Add DT bindings documentation Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 16:40 ` Rob Herring
2015-10-30 16:40 ` Rob Herring
2015-10-30 16:40 ` Rob Herring
2015-10-30 17:37 ` Thierry Reding
2015-10-30 17:37 ` Thierry Reding
2015-10-30 17:37 ` Thierry Reding
2015-10-30 17:37 ` Thierry Reding
2015-11-01 14:28 ` Rob Herring
2015-11-01 14:28 ` Rob Herring
2015-11-01 14:28 ` Rob Herring
2015-11-01 14:28 ` Rob Herring
2015-11-06 22:32 ` Maxime Ripard [this message]
2015-11-06 22:32 ` Maxime Ripard
2015-11-06 22:32 ` Maxime Ripard
2015-11-06 22:32 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 10/19] drm: sun4i: Add RGB output Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 11/19] drm: sun4i: Add composite output Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-11-02 2:53 ` [linux-sunxi] " Jonathan Liu
2015-11-02 2:53 ` Jonathan Liu
2015-11-02 2:53 ` Jonathan Liu
2015-11-07 0:35 ` [linux-sunxi] " Maxime Ripard
2015-11-07 0:35 ` Maxime Ripard
2015-11-07 0:35 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 12/19] drm: sun4i: tv: Add PAL output standard Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` [PATCH 13/19] drm: sun4i: tv: Add NTSC " Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:20 ` Maxime Ripard
2015-10-30 14:21 ` [PATCH 14/19] ARM: sun5i: dt: Add pll3 and pll7 clocks Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-11-09 4:24 ` Chen-Yu Tsai
2015-11-09 4:24 ` Chen-Yu Tsai
2015-11-09 4:24 ` Chen-Yu Tsai
2015-10-30 14:21 ` [PATCH 15/19] ARM: sun5i: dt: Add display and TCON clocks Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` [PATCH 16/19] ARM: sun5i: dt: Add DRAM gates Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` [PATCH 17/19] ARM: sun5i: dt: Add display blocks to the DTSI Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` [PATCH 18/19] ARM: sun5i: r8: Add AHB gates " Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` [PATCH 19/19] ARM: sun5i: chip: Enable the TV Encoder Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 14:21 ` Maxime Ripard
2015-10-30 15:20 ` Chen-Yu Tsai
2015-10-30 15:20 ` Chen-Yu Tsai
2015-11-06 19:37 ` Maxime Ripard
2015-11-06 19:37 ` Maxime Ripard
2015-11-06 19:37 ` Maxime Ripard
2015-10-30 14:52 ` [PATCH 00/19] drm: Add Allwinner A10 display engine support Daniel Vetter
2015-10-30 14:52 ` Daniel Vetter
2015-10-30 14:52 ` Daniel Vetter
2015-11-12 5:12 ` Maxime Ripard
2015-11-12 5:12 ` Maxime Ripard
2015-11-12 5:12 ` Maxime Ripard
2015-10-30 15:02 ` Stefan Monnier
2015-11-09 3:43 ` Chen-Yu Tsai
2015-11-09 3:43 ` Chen-Yu Tsai
2015-11-09 3:43 ` Chen-Yu Tsai
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