linux-kernel - Re: [PATCH v5 0/7] drm/panel: simple: Add mode support to devicetree

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Message-ID: <1584725.WvTV0KElQL@phil>
Date:   Fri, 14 Jun 2019 12:39:31 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Douglas Anderson <dianders@...omium.org>,
        Thierry Reding <thierry.reding@...il.com>
Cc:     Sean Paul <seanpaul@...omium.org>,
        linux-rockchip@...ts.infradead.org,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        dri-devel@...ts.freedesktop.org,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Enric Balletbò <enric.balletbo@...labora.com>,
        Rob Herring <robh+dt@...nel.org>, mka@...omium.org,
        devicetree@...r.kernel.org,
        Brian Norris <briannorris@...omium.org>,
        Klaus Goger <klaus.goger@...obroma-systems.com>,
        linux-kernel@...r.kernel.org, David Airlie <airlied@...ux.ie>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        Daniel Vetter <daniel@...ll.ch>
Subject: Re: [PATCH v5 0/7] drm/panel: simple: Add mode support to devicetree

Am Montag, 1. April 2019, 19:17:17 CEST schrieb Douglas Anderson:
> I'm reviving Sean Paul's old patchset to get mode support in device
> tree.  The cover letter for his v3 is at:
> https://lists.freedesktop.org/archives/dri-devel/2018-February/165162.html
> 
> No code is different between v4 and v5, just commit messages and text
> in the bindings.
> 
> I've pulled together the patches that didn't land in v3, addressed
> outstanding feedback, and reposted.  Atop them I've added patches for
> rk3288-veyron-chromebook (used for jaq, jerry, mighty, speedy) and
> rk3288-veryon-minnie.
> 
> Please let me know how they look.
> 
> In general I have added people to the whole series who I think would
> like the whole series and then let get_maintainer pick extra people it
> thinks are relevant to each individual patch.  If I see you respond to
> any of the patches in the series, though, I'll add you to the whole
> series Cc list next time.

sadly it looks like the panel-simple parts haven't made it into
drm-misc yet and the conversation on patch 1/7 seems to have stalled
after Doug's replies.

Thierry, do you have an opinion on these?


Thanks
Heiko

> Changes in v5:
> - Removed bit about OS may ignore (Rob/Ezequiel)
> - Added Heiko's Tested-by
> - It's not just jerry, it's most rk3288 Chromebooks (Heiko)
> 
> 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
> - Don't add mode from timing if override was specified (Thierry)
> - Add warning if timing and fixed mode was specified (Thierry)
> - Don't add fixed mode if timing was specified (Thierry)
> - Refactor/rename a bit to avoid extra indentation from "if" tests
> - i should be unsigned (Thierry)
> - Add annoying WARN_ONs for some cases (Thierry)
> - Simplify 'No display_timing found' handling (Thierry)
> - Rename to panel_simple_parse_override_mode() (Thierry)
> - Rebase to top of Heiko's tree
> - Converted changelog to after-the-cut for non-DRM change.
> - display_timing for Innolux n116bge new for v4.
> - display_timing for AUO b101ean01 new for v4.
> - rk3288-veyron-jerry patch new for v4.
> - rk3288-veyron-minnie patch new for v4.
> 
> Changes in v3:
> - Go back to using the timing subnode directly, but rename to
>   panel-timing (Rob)
> - No longer parse display-timings subnode, use panel-timing (Rob)
> - Unwrap the timing from display-timings and rename panel-timing (Rob)
> 
> 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)
> - Parse the full display-timings node (using the native-mode) (Rob)
> - Wrap the timing in display-timings node to match binding (Rob/Thierry)
> 
> Douglas Anderson (4):
>   drm/panel: simple: Use display_timing for Innolux n116bge
>   drm/panel: simple: Use display_timing for AUO b101ean01
>   ARM: dts: rockchip: Specify rk3288-veyron-chromebook's display timings
>   ARM: dts: rockchip: Specify rk3288-veyron-minnie's display timings
> 
> Sean Paul (3):
>   dt-bindings: Add panel-timing subnode to simple-panel
>   drm/panel: simple: Add ability to override typical timing
>   arm64: dts: rockchip: Specify override mode for kevin panel
> 
>  .../bindings/display/panel/simple-panel.txt   |  22 +++
>  .../boot/dts/rk3288-veyron-chromebook.dtsi    |  14 ++
>  arch/arm/boot/dts/rk3288-veyron-minnie.dts    |  14 ++
>  .../boot/dts/rockchip/rk3399-gru-kevin.dts    |  14 ++
>  drivers/gpu/drm/panel/panel-simple.c          | 171 ++++++++++++++----
>  5 files changed, 203 insertions(+), 32 deletions(-)
> 
>