From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Laurent Pinchart
<laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>
Cc: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
Jean-Francois Moine <moinejf-GANU6spQydw@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH v7 0/8] drm: sun8i: Add DE2 HDMI video support
Date: Thu, 1 Dec 2016 10:42:18 +0100 [thread overview]
Message-ID: <20161201094218.6snkyrsxex3hpwwi@lukather> (raw)
In-Reply-To: <2084988.kISO4Quil7@avalon>
[-- Attachment #1: Type: text/plain, Size: 1099 bytes --]
On Thu, Dec 01, 2016 at 11:19:56AM +0200, Laurent Pinchart wrote:
> Hi Maxime,
>
> On Thursday 01 Dec 2016 10:13:13 Maxime Ripard wrote:
> > On Wed, Nov 30, 2016 at 12:12:55PM +0200, Laurent Pinchart wrote:
> > >> More, it is not sure that the bridge/DW code would work with Allwinner's
> > >> SoCs.
> > >
> > > If it doesn't work and can't be made to work in a non-invasive way they it
> > > should certainly not be used :-)
> >
> > Even if the register layout is completely scrambled, as long as the
> > bits themselves aren't (and by comparing the two drivers it looks like
> > they haven't changed), you can easily deal with that using the
> > regmap_fields, with the two implementations (the original one and the
> > scrambled one) providing their register map that way, and the driver
> > code using whatever has been provided.
>
> Looking at https://linux-sunxi.org/DWC_HDMI_Controller#DWC_HDMI_Controller it
> seems that an address remapping function could be used.
Even better.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-12-01 9:42 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-29 10:18 [PATCH v7 0/8] drm: sun8i: Add DE2 HDMI video support Jean-Francois Moine
[not found] ` <cover.1480414715.git.moinejf-GANU6spQydw@public.gmane.org>
2016-11-28 14:23 ` [PATCH v7 1/8] drm: sun8i: Add a basic DRM driver for Allwinner DE2 Jean-Francois Moine
[not found] ` <592a49a2d9505fc0f09b555847892fb7a4047530.1480414715.git.moinejf-GANU6spQydw@public.gmane.org>
2016-11-29 14:30 ` Daniel Vetter
[not found] ` <20161129143051.vn6exubsirwcauag-dv86pmgwkMBes7Z6vYuT8azUEOm+Xw19@public.gmane.org>
2016-11-29 14:33 ` Icenowy Zheng
2016-11-28 18:02 ` [PATCH v7 2/8] drm/sun8i: Add DT bindings documentation of " Jean-Francois Moine
[not found] ` <92fc53084274d5ab04fe28f2dc0b16cf5d94481e.1480414715.git.moinejf-GANU6spQydw@public.gmane.org>
2016-11-29 18:41 ` Laurent Pinchart
2016-11-29 18:45 ` Laurent Pinchart
2016-11-29 8:39 ` [PATCH v7 3/8] drm: sun8i: add HDMI video support to A83T and H3 Jean-Francois Moine
2016-11-29 9:08 ` [PATCH v7 4/8] drm/sunxi: Add DT bindings documentation of Allwinner HDMI Jean-Francois Moine
[not found] ` <cd1caff75b6069af98680f78d672546748cb43c5.1480414715.git.moinejf-GANU6spQydw@public.gmane.org>
2016-11-29 18:46 ` Laurent Pinchart
2016-11-29 19:27 ` Jean-Francois Moine
[not found] ` <20161129202751.e94f72a1b9e2c2fb064e9933-GANU6spQydw@public.gmane.org>
2016-11-29 19:33 ` Laurent Pinchart
2016-11-29 20:04 ` Jean-Francois Moine
[not found] ` <20161129210455.d0c8450d3ceb83c1abe521b0-GANU6spQydw@public.gmane.org>
2016-11-29 20:10 ` Laurent Pinchart
2016-11-30 8:12 ` Jean-Francois Moine
[not found] ` <20161130091208.f38cd79f1cc5d27b27f3b130-GANU6spQydw@public.gmane.org>
2016-11-30 8:20 ` Laurent Pinchart
2016-11-30 9:27 ` Jean-Francois Moine
[not found] ` <20161130102757.9eec1f7f3377d0f4787e3829-GANU6spQydw@public.gmane.org>
2016-11-30 9:52 ` Laurent Pinchart
2016-11-30 10:44 ` Jean-Francois Moine
[not found] ` <20161130114415.2280151e2965280733a629e5-GANU6spQydw@public.gmane.org>
2016-11-30 17:33 ` Icenowy Zheng
[not found] ` <1971681480527210-RAIFsGP/6J5uio3avFS2gg@public.gmane.org>
2016-12-01 8:55 ` Maxime Ripard
2016-12-01 10:41 ` Laurent Pinchart
2016-12-01 11:30 ` Jean-Francois Moine
[not found] ` <20161201123009.d2b4d9d389070200c54138ee-GANU6spQydw@public.gmane.org>
2016-12-01 11:44 ` Laurent Pinchart
2016-11-30 17:24 ` Icenowy Zheng
2016-11-29 10:10 ` [PATCH v7 5/8] clk: sunxi-ng: define the PLL DE clock Jean-Francois Moine
2016-11-29 10:12 ` [PATCH v7 6/8] ARM: dts: sun8i-h3: add HDMI video nodes Jean-Francois Moine
2016-11-29 10:14 ` [PATCH v7 7/8] ARM: dts: sun8i-h3: Add HDMI video to the Banana Pi M2+ Jean-Francois Moine
2016-11-29 10:16 ` [PATCH v7 8/8] ARM: dts: sun8i-h3: Add HDMI video to the Orange PI 2 Jean-Francois Moine
2016-11-29 21:36 ` [PATCH v7 0/8] drm: sun8i: Add DE2 HDMI video support Maxime Ripard
2016-11-29 22:47 ` Jernej Skrabec
[not found] ` <8398357e-5c5e-4d76-9022-1c668aff5076-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2016-11-29 22:56 ` Laurent Pinchart
2016-11-29 23:24 ` Jernej Skrabec
[not found] ` <239b60f3-3ea7-4aa7-8e8d-353e1a1d4ee5-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2016-11-30 8:08 ` Laurent Pinchart
2016-11-30 18:04 ` Jernej Skrabec
2016-11-30 9:05 ` Jean-Francois Moine
[not found] ` <20161130100545.44546ed28896cdb9768f68cd-GANU6spQydw@public.gmane.org>
2016-11-30 10:12 ` Laurent Pinchart
2016-12-01 9:13 ` Maxime Ripard
2016-12-01 9:19 ` Laurent Pinchart
2016-12-01 9:42 ` Maxime Ripard [this message]
2016-12-01 9:28 ` How should we group related devices in DT ? (was Re: [PATCH v7 0/8] drm: sun8i: Add DE2 HDMI video support) Laurent Pinchart
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