? 2017/8/11 23:38, Philipp Zabel ??: > 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 <hjc at rock-chips.com> >>> Signed-off-by: Mark yao <mark.yao at rock-chips.com> >>> Signed-off-by: Heiko Stuebner <heiko at sntech.de> >> --- >> .../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. > Because the lvds maybe connected to panel or some cover chip just like rgb2cvbs etc. , in this case, we no need to enable panel, so we have to get this proterty at here. > So if these properties are necessary at all, they at least should be > optional (overrides). > ok, i will set data-mapping to option. > regards > Philipp > > _______________________________________________ > Linux-rockchip mailing list > Linux-rockchip at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-rockchip >
