From: Doug Anderson <dianders@chromium.org>
To: Ezequiel Garcia <ezequiel@collabora.com>
Cc: "Thierry Reding" <thierry.reding@gmail.com>,
"Heiko Stuebner" <heiko@sntech.de>,
"Sean Paul" <seanpaul@chromium.org>,
"open list:ARM/Rockchip SoC..."
<linux-rockchip@lists.infradead.org>,
"Laurent Pinchart" <laurent.pinchart@ideasonboard.com>,
dri-devel <dri-devel@lists.freedesktop.org>,
"Boris Brezillon" <boris.brezillon@collabora.com>,
"Enric Balletbò" <enric.balletbo@collabora.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Matthias Kaehlcke" <mka@chromium.org>,
"Eric Anholt" <eric@anholt.net>,
"Jeffy Chen" <jeffy.chen@rock-chips.com>,
"Stéphane Marchesin" <marcheu@chromium.org>,
devicetree@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
"David Airlie" <airlied@linux.ie>,
"Mark Rutland" <mark.rutland@arm.com>,
"Daniel Vetter" <daniel@ffwll.ch>
Subject: Re: [PATCH v4 1/7] dt-bindings: Add panel-timing subnode to simple-panel
Date: Thu, 28 Mar 2019 16:50:13 -0700 [thread overview]
Message-ID: <CAD=FV=WOKSHWCHPv9kQT7np6v_ZYBmAsnTpAHJv7zRS_3b46JQ@mail.gmail.com> (raw)
In-Reply-To: <f2f82f439f2b7586cb4c83f15122d8d19952d596.camel@collabora.com>
Hi,
On Thu, Mar 28, 2019 at 1:27 PM Ezequiel Garcia <ezequiel@collabora.com> wrote:
>
> On Thu, 2019-03-28 at 10:17 -0700, Douglas Anderson wrote:
> > From: Sean Paul <seanpaul@chromium.org>
> >
> > This patch adds a new subnode to simple-panel allowing us to override
> > the typical timing expressed in the panel's display_timing.
> >
> > Changes in v2:
> > - Split out the binding into a new patch (Rob)
> > - display-timings is a new section (Rob)
> > - Use the full display-timings subnode instead of picking the timing
> > out (Rob/Thierry)
> > Changes in v3:
> > - Go back to using the timing subnode directly, but rename to
> > panel-timing (Rob)
> > Changes in v4:
> > - Simplify desc. for when override should be used (Thierry/Laurent)
> > - Removed Rob H review since it's been a year and wording changed
> >
> > Cc: Doug Anderson <dianders@chromium.org>
> > Cc: Eric Anholt <eric@anholt.net>
> > Cc: Heiko Stuebner <heiko@sntech.de>
> > Cc: Jeffy Chen <jeffy.chen@rock-chips.com>
> > Cc: Rob Herring <robh+dt@kernel.org>
> > Cc: Stéphane Marchesin <marcheu@chromium.org>
> > Cc: Thierry Reding <thierry.reding@gmail.com>
> > Cc: devicetree@vger.kernel.org
> > Cc: dri-devel@lists.freedesktop.org
> > Cc: linux-rockchip@lists.infradead.org
> > Signed-off-by: Sean Paul <seanpaul@chromium.org>
> > Signed-off-by: Douglas Anderson <dianders@chromium.org>
> > ---
> >
> > .../bindings/display/panel/simple-panel.txt | 24 +++++++++++++++++++
> > 1 file changed, 24 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/display/panel/simple-panel.txt b/Documentation/devicetree/bindings/display/panel/simple-panel.txt
> > index b2b872c710f2..6157f86ddce4 100644
> > --- a/Documentation/devicetree/bindings/display/panel/simple-panel.txt
> > +++ b/Documentation/devicetree/bindings/display/panel/simple-panel.txt
> > @@ -15,6 +15,18 @@ Optional properties:
> > (hot plug detect) signal, but the signal isn't hooked up so we should
> > hardcode the max delay from the panel spec when powering up the panel.
> >
> > +panel-timing subnode
> > +--------------------
> > +
> > +This optional subnode is for devices which require a mode differing
> > +from the panel's "typical" display timing. The panel timings provided
> > +here will be ignored if they are found to be outside of allowable
> > +ranges for the given panel.
> > +
>
> Is it OK to put this comment about how the implementation
> will behave when values are out of range, given this is just a binding
> spec?
>
> Perhaps -if needed- this sentence can be rephrased to state that,
> e.g. the OS may not be able to apply these values, if the controller
> or device is unable to?
I will defer to Rob H. on this one, but I'm happy to simply remove the
last sentence. I was trying to add a more OS-agnostic version of the
bullet points from V3 but agree that we could just remove this from
the bindings completely.
-Doug
next prev parent reply other threads:[~2019-03-28 23:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-28 17:17 [PATCH v4 0/7] drm/panel: simple: Add mode support to devicetree Douglas Anderson
2019-03-28 17:17 ` [PATCH v4 1/7] dt-bindings: Add panel-timing subnode to simple-panel Douglas Anderson
2019-03-28 20:26 ` Ezequiel Garcia
2019-03-28 23:50 ` Doug Anderson [this message]
2019-03-29 16:12 ` Rob Herring
2019-03-29 16:14 ` Doug Anderson
2019-03-28 17:17 ` [PATCH v4 2/7] drm/panel: simple: Add ability to override typical timing Douglas Anderson
2019-03-29 19:13 ` Heiko Stübner
2019-03-28 17:17 ` [PATCH v4 3/7] arm64: dts: rockchip: Specify override mode for kevin panel Douglas Anderson
2019-03-28 17:17 ` [PATCH v4 4/7] drm/panel: simple: Use display_timing for Innolux n116bge Douglas Anderson
2019-03-29 19:17 ` Heiko Stübner
2019-03-28 17:17 ` [PATCH v4 5/7] drm/panel: simple: Use display_timing for AUO b101ean01 Douglas Anderson
2019-03-28 17:17 ` [PATCH v4 6/7] ARM: dts: rockchip: Specify rk3288-veyron-jerry's display timings Douglas Anderson
2019-03-29 19:20 ` Heiko Stübner
2019-03-28 17:17 ` [PATCH v4 7/7] ARM: dts: rockchip: Specify rk3288-veyron-minnie's " Douglas Anderson
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