From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: "Jernej Škrabec" <jernej.skrabec@siol.net>
Cc: Mark Rutland <mark.rutland@arm.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
plaes@plaes.org, devicetree@vger.kernel.org,
David Airlie <airlied@linux.ie>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Chen-Yu Tsai <wens@csie.org>, Rob Herring <robh+dt@kernel.org>,
thierry.reding@gmail.com,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Daniel Vetter <daniel.vetter@intel.com>,
linux-arm-kernel@lists.infradead.org, icenowy@aosc.io
Subject: Re: [PATCH v5 03/12] dt-bindings: display: sun4i-drm: Add LVDS properties
Date: Thu, 4 Jan 2018 20:03:24 +0100 [thread overview]
Message-ID: <20180104190324.zrrsmdamd7ch2qe5@flea.lan> (raw)
In-Reply-To: <1927811.df6406f6u0@jernej-laptop>
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Hi,
On Sat, Dec 30, 2017 at 12:45:19PM +0100, Jernej Škrabec wrote:
> Hi Maxime,
>
> Dne četrtek, 21. december 2017 ob 12:02:29 CET je Maxime Ripard napisal(a):
> > Some clocks and resets supposed to drive the LVDS logic in the display
> > engine have been overlooked when the driver was first introduced.
> >
> > Add those additional resources to the binding, and we'll deal with the ABI
> > stability in the code.
> >
> > Reviewed-by: Chen-Yu Tsai <wens@csie.org>
> > Reviewed-by: Rob Herring <robh@kernel.org>
> > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> > ---
> > Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 9 +++++++-
> > 1 file changed, 9 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
> > b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt index
> > 50cc72ee1168..1e21cfaac9e2 100644
> > --- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
> > +++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
> > @@ -121,6 +121,15 @@ Required properties:
> > On SoCs other than the A33 and V3s, there is one more clock required:
> > - 'tcon-ch1': The clock driving the TCON channel 1
> >
> > +On SoCs that support LVDS (all SoCs but the A13, H3, H5 and V3s), you
> > +need one more reset line:
> > + - 'lvds': The reset line driving the LVDS logic
> > +
> > +And on the SoCs newer than the A31 (sun6i and sun8i families), you
> > +need one more clock line:
> > + - 'lvds-alt': An alternative clock source, separate from the TCON
> > channel 0 + clock, that can be used to drive the LVDS clock
>
> I think this wording is imprecise, since A83T is part of the sun8i family, but
> from the code (patch 7) and DT changes (patch 9) you do, it doesn't need this
> property.
>
> Maybe it would be just easier to enumerate all compatibles which needs this
> property?
You're right, but the rest of the document uses the SoC name
instead. In order to remain consistent, I listed the (currently
supported) SoCs that need that property and applied that patch.
Thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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next prev parent reply other threads:[~2018-01-04 19:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-21 11:02 [PATCH v5 00/12] drm/sun4i: Add A83t LVDS support Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 01/12] dt-bindings: panel: lvds: Document power-supply property Maxime Ripard
2017-12-22 12:08 ` Laurent Pinchart
2018-01-04 19:44 ` Maxime Ripard
[not found] ` <20180104194436.reka6nw5hf32o4p3-ZC1Zs529Oq4@public.gmane.org>
2018-01-04 20:05 ` Laurent Pinchart
2017-12-21 11:02 ` [PATCH v5 02/12] drm/panel: lvds: Add support for the " Maxime Ripard
2017-12-22 12:09 ` Laurent Pinchart
2017-12-21 11:02 ` [PATCH v5 03/12] dt-bindings: display: sun4i-drm: Add LVDS properties Maxime Ripard
[not found] ` <ddbde28fe2e4f21412974e4c69fbfe1c5ff9383f.1513854122.git-series.maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2017-12-30 11:45 ` Jernej Škrabec
2018-01-04 19:03 ` Maxime Ripard [this message]
2017-12-21 11:02 ` [PATCH v5 04/12] dt-bindings: display: sun4i-drm: Add A83T pipeline Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 05/12] drm/sun4i: Force the mixer rate at 150MHz Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 06/12] drm/sun4i: Create minimal multipliers and dividers Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 07/12] drm/sun4i: Add LVDS support Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 08/12] drm/sun4i: Add A83T support Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 09/12] ARM: dts: sun8i: a83t: Add display pipeline Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 10/12] ARM: dts: sun8i: a83t: Enable the PWM Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 11/12] ARM: dts: sun8i: a83t: Add LVDS pins group Maxime Ripard
2017-12-21 11:02 ` [PATCH v5 12/12] ARM: dts: sun8i: a711: Enable the LCD Maxime Ripard
2018-01-05 9:39 ` [PATCH v5 00/12] drm/sun4i: Add A83t LVDS support Maxime Ripard
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