FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/display/exynos/exynos7-decon.txt

     Device-Tree bindings for Samsung Exynos7 SoC display controller (DECON)
     
     DECON (Display and Enhancement Controller) is the Display Controller for the
     Exynos7 series of SoCs which transfers the image data from a video memory
     buffer to an external LCD interface.
     
     Required properties:
     - compatible: value should be "samsung,exynos7-decon";
     
    - reg: physical base address and length of the DECON registers set.
    
    - interrupts: should contain a list of all DECON IP block interrupts in the
                     order: FIFO Level, VSYNC, LCD_SYSTEM. The interrupt specifier
                     format depends on the interrupt controller used.
    
    - interrupt-names: should contain the interrupt names: "fifo", "vsync",
            "lcd_sys", in the same order as they were listed in the interrupts
            property.
    
    - pinctrl-0: pin control group to be used for this controller.
    
    - pinctrl-names: must contain a "default" entry.
    
    - clocks: must include clock specifiers corresponding to entries in the
             clock-names property.
    
    - clock-names: list of clock names sorted in the same order as the clocks
                   property. Must contain "pclk_decon0", "aclk_decon0",
                   "decon0_eclk", "decon0_vclk".
    - i80-if-timings: timing configuration for lcd i80 interface support.
    
    Optional Properties:
    - power-domains: a phandle to DECON power domain node.
    - display-timings: timing settings for DECON, as described in document [1].
                    Can be used in case timings cannot be provided otherwise
                    or to override timings provided by the panel.
    
    [1]: Documentation/devicetree/bindings/display/panel/display-timing.txt
    
    Example:
    
    SoC specific DT entry:
    
            decon@13930000 {
                    compatible = "samsung,exynos7-decon";
                    interrupt-parent = <&combiner>;
                    reg = <0x13930000 0x1000>;
                    interrupt-names = "lcd_sys", "vsync", "fifo";
                    interrupts = <0 188 0>, <0 189 0>, <0 190 0>;
                    clocks = <&clock_disp PCLK_DECON_INT>,
                             <&clock_disp ACLK_DECON_INT>,
                             <&clock_disp SCLK_DECON_INT_ECLK>,
                             <&clock_disp SCLK_DECON_INT_EXTCLKPLL>;
                    clock-names = "pclk_decon0", "aclk_decon0", "decon0_eclk",
                                    "decon0_vclk";
                    status = "disabled";
            };
    
    Board specific DT entry:
    
            decon@13930000 {
                    pinctrl-0 = <&lcd_clk &pwm1_out>;
                    pinctrl-names = "default";
                    status = "okay";
            };

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