From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philipp Zabel Subject: Re: [PATCH 1/3] dt-bindings: display: Add Document for Rockchip Soc LVDS Date: Fri, 11 Aug 2017 17:38:31 +0200 Message-ID: <1502465911.2310.18.camel@pengutronix.de> References: <1502272846-63941-1-git-send-email-hjc@rock-chips.com> <1502272851-63997-1-git-send-email-hjc@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <1502272851-63997-1-git-send-email-hjc-TNX95d0MmH7DzftRWevZcw@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sandy Huang , Mark Yao , David Airlie , Rob Herring , Mark Rutland , Heiko Stuebner Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org On Wed, 2017-08-09 at 18:00 +0800, Sandy Huang wrote: > This patch add Document for Rockchip Soc RK3288 LVDS, > This based on the patches from Mark yao and Heiko Stuebner. > > > Signed-off-by: Sandy Huang > > Signed-off-by: Mark yao > > Signed-off-by: Heiko Stuebner > --- >  .../bindings/display/rockchip/rockchip-lvds.txt    | 104 +++++++++++++++++++++ >  1 file changed, 104 insertions(+) >  create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt > > diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt > new file mode 100644 > index 0000000..bf934ba > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt > @@ -0,0 +1,104 @@ > +Rockchip RK3288 LVDS interface > +================================ > + > +Required properties: > +- compatible: matching the soc type, one of > > + - "rockchip,rk3288-lvds"; > + > +- reg: physical base address of the controller and length > > + of memory mapped region. > +- clocks: must include clock specifiers corresponding to entries in the > > + clock-names property. > +- clock-names: must contain "pclk_lvds" > + > +- avdd1v0-supply: regulator phandle for 1.0V analog power > +- avdd1v8-supply: regulator phandle for 1.8V analog power > +- avdd3v3-supply: regulator phandle for 3.3V analog power > + > +- rockchip,grf: phandle to the general register files syscon > + > +Optional properties > +- pinctrl-names: must contain a "lcdc" entry. > +- pinctrl-0: pin control group to be used for this controller. > + > +Required nodes: > + > +The lvds has two video ports as described by > > + Documentation/devicetree/bindings/media/video-interfaces.txt. > +Their connections are modeled using the OF graph bindings specified in > > + Documentation/devicetree/bindings/graph.txt. > + > +- video port 0 for the VOP inputs > +- video port 1 for either a panel or subsequent encoder > + > +the lvds panel described by > > + Documentation/devicetree/bindings/display/panel/simple-panel.txt > + > +- rockchip,data-mapping: should be "vesa" or "jeida", > > + This describes how the color bits are laid out in the > > + serialized LVDS signal. > +- rockchip,data-width : should be <18> or <24>; This can already be described by the panel itself, via the bus_format property in the panel_desc for panel-simple, or via the existing panel device tree property "data-mapping" in panel-lvds, which can be set to "jeida-18", "jeida-24", or "vesa-24". The LVDS driver can then read the panel bus information from the panel's connector->display_info.bus_formats. So if these properties are necessary at all, they at least should be optional (overrides). regards Philipp -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html