From mboxrd@z Thu Jan 1 00:00:00 1970 From: Douglas Anderson Subject: [PATCH v4 1/7] dt-bindings: Add panel-timing subnode to simple-panel Date: Thu, 28 Mar 2019 10:17:04 -0700 Message-ID: <20190328171710.31949-2-dianders@chromium.org> References: <20190328171710.31949-1-dianders@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190328171710.31949-1-dianders@chromium.org> Sender: linux-kernel-owner@vger.kernel.org To: Thierry Reding , Heiko Stuebner , Sean Paul Cc: linux-rockchip@lists.infradead.org, Laurent Pinchart , dri-devel@lists.freedesktop.org, Boris Brezillon , Ezequiel Garcia , =?UTF-8?q?Enric=20Balletb=C3=B2?= , Rob Herring , mka@chromium.org, Doug Anderson , Eric Anholt , Jeffy Chen , =?UTF-8?q?St=C3=A9phane=20Marchesin?= , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, David Airlie , Mark Rutland , Daniel Vetter List-Id: dri-devel@lists.freedesktop.org From: Sean Paul 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 Cc: Eric Anholt Cc: Heiko Stuebner Cc: Jeffy Chen Cc: Rob Herring Cc: Stéphane Marchesin Cc: Thierry Reding Cc: devicetree@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-rockchip@lists.infradead.org Signed-off-by: Sean Paul Signed-off-by: Douglas Anderson --- .../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. + +Format information on the panel-timing subnode can be found in +display-timing.txt. + + Example: panel: panel { @@ -25,4 +37,16 @@ Example: enable-gpios = <&gpio 90 0>; backlight = <&backlight>; + + panel-timing { + clock-frequency = <266604720>; + hactive = <2400>; + hfront-porch = <48>; + hback-porch = <84>; + hsync-len = <32>; + vactive = <1600>; + vfront-porch = <3>; + vback-porch = <120>; + vsync-len = <10>; + }; }; -- 2.21.0.392.gf8f6787159e-goog