Re: [PATCH v2 5/6] dt-bindings: drm/panel: simple: Innolux TV123WAM is actually P120ZDG-BF1

Sean Paul
2018-10-26T14:46:57Z

On Fri, Oct 26, 2018 at 10:43:56AM -0400, Sean Paul wrote:
> On Thu, Oct 25, 2018 at 03:21:33PM -0700, Douglas Anderson wrote:
> > As far as I can tell the bindings that were added in commit
> > 9c04400f7ea6 ("dt-bindings: drm/panel: Document Innolux TV123WAM panel
> > bindings") weren't actually for Innolux TV123WAM but were actually for
> > Innolux P120ZDG-BF1.
> >
> > As far as I can tell the Innolux TV123WAM isn't a real panel and but
> > it's a mosh between the TI TV123WAM and the Innolux P120ZDG-BF1.
> > Let's unmosh.
> >
> > Here's my evidence:
> >
> > * Searching for TV123WAM on the Internet turns up a TI panel. While
> > it's possible that an Innolux panel has the same model number as the
> > TI Panel, it seems a little doubtful. Looking up the datasheet from
> > the TI Panel shows that it's 1920 x 1280 and 259.2 mm x 172.8 mm.
> >
> > * As far as I know, the patch adding the Innolux Panel was supposed to
> > be for the board that's sitting in front of me as I type this
> > (support for that board is not yet upstream). On the back of that
> > panel I see Innolux P120ZDZ-EZ1 rev B1.
> >
> > * Someone pointed me at a datasheet that's supposed to be for the
> > panel in front of me (sorry, I can't share the datasheet). That
> > datasheet has the string "p120zdg-bf1"
> >
> > * If I search for "P120ZDG-BF1" on the Internet I get hits for panels
> > that are 2160x1440. They don't have datasheets, but the fact that
> > the resolution matches is a good sign.
> >
> > While we doing the rename, also mention that no-hpd can be used with
> > this panel. See the previous patch in this series ("drm/panel:
> > simple: Add "no-hpd" delay for Innolux TV123WAM").
> >
> > Fixes: 9c04400f7ea6 ("dt-bindings: drm/panel: Document Innolux TV123WAM panel bindings")
> > Signed-off-by: Douglas Anderson <dianders@chromium.org>
> > Reviewed-by: Rob Herring <robh@kernel.org>
>
> I didn't see your v2 when I replied to the v1 patch, so for the record,
>
> Reviewed-by: Sean Paul <sean@poorly.run>
>
> Also note to whoever applies this to -misc, v1 also had
>
> Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>

And I just realized that patches 5 & 6 were swapped in v2. So nevermind this,
Doug's v2 tags are correct.

Dear coffee, please kick in soon.

Sean

>
>
> Sean
>
> > Cc: Sandeep Panda <spanda@codeaurora.org>
> > ---
> >
> > Changes in v2: None
> >
> > .../{innolux,tv123wam.txt => innolux,p120zdg-bf1.txt} | 8 +++++---
> > 1 file changed, 5 insertions(+), 3 deletions(-)
> > rename Documentation/devicetree/bindings/display/panel/{innolux,tv123wam.txt => innolux,p120zdg-bf1.txt} (70%)
> >
> > diff --git a/Documentation/devicetree/bindings/display/panel/innolux,tv123wam.txt b/Documentation/devicetree/bindings/display/panel/innolux,p120zdg-bf1.txt
> > similarity index 70%
> > rename from Documentation/devicetree/bindings/display/panel/innolux,tv123wam.txt
> > rename to Documentation/devicetree/bindings/display/panel/innolux,p120zdg-bf1.txt
> > index a9b35265fa13..513f03466aba 100644
> > --- a/Documentation/devicetree/bindings/display/panel/innolux,tv123wam.txt
> > +++ b/Documentation/devicetree/bindings/display/panel/innolux,p120zdg-bf1.txt
> > @@ -1,20 +1,22 @@
> > -Innolux TV123WAM 12.3 inch eDP 2K display panel
> > +Innolux P120ZDG-BF1 12.02 inch eDP 2K display panel
> >
> > This binding is compatible with the simple-panel binding, which is specified
> > in simple-panel.txt in this directory.
> >
> > Required properties:
> > -- compatible: should be "innolux,tv123wam"
> > +- compatible: should be "innolux,p120zdg-bf1"
> > - power-supply: regulator to provide the supply voltage
> >
> > Optional properties:
> > - enable-gpios: GPIO pin to enable or disable the panel
> > - backlight: phandle of the backlight device attached to the panel
> > +- no-hpd: If HPD isn't hooked up; add this property.
> >
> > Example:
> > panel_edp: panel-edp {
> > - compatible = "innolux,tv123wam";
> > + compatible = "innolux,p120zdg-bf1";
> > enable-gpios = <&msmgpio 31 GPIO_ACTIVE_LOW>;
> > power-supply = <&pm8916_l2>;
> > backlight = <&backlight>;
> > + no-hpd;
> > };
> > --
> > 2.19.1.568.g152ad8e336-goog
> >
>
> --
> Sean Paul, Software Engineer, Google / Chromium OS

--
Sean Paul, Software Engineer, Google / Chromium OS
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