Kernel-4.18.0-80.el8_exynos5433-decon

Device-Tree bindings for Samsung Exynos SoC display controller (DECON)

DECON (Display and Enhancement Controller) is the Display Controller for the
Exynos series of SoCs which transfers the image data from a video memory
buffer to an external LCD interface.

Required properties:

• compatible: value should be one of:
  “samsung,exynos5433-decon”, “samsung,exynos5433-decon-tv”;
• reg: physical base address and length of the DECON registers set.
• interrupt-names: should contain the interrupt names depending on mode of work:

    video mode: "vsync",
    command mode: "lcd_sys",
    command mode with software trigger: "lcd_sys", "te".
  

• interrupts or interrupts-extended: list of interrupt specifiers corresponding

    to names privided in interrupt-names, as described in
    interrupt-controller/interrupts.txt
  

• 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", "aclk_decon", "aclk_smmu_decon0x",
       "aclk_xiu_decon0x", "pclk_smmu_decon0x", "aclk_smmu_decon1x",
       "aclk_xiu_decon1x", "pclk_smmu_decon1x", clk_decon_vclk",
       "sclk_decon_eclk"
  

• ports: contains a port which is connected to mic node. address-cells and
  size-cells must 1 and 0, respectively.
• port: contains an endpoint node which is connected to the endpoint in the mic
  node. The reg value muset be 0.

Example:
SoC specific DT entry:
decon: decon@13800000 {
compatible = “samsung,exynos5433-decon”;
reg = <0x13800000 0x2104>;
clocks = <&cmu_disp CLK_ACLK_DECON>, <&cmu_disp CLK_ACLK_SMMU_DECON0X>,
<&cmu_disp CLK_ACLK_XIU_DECON0X>,
<&cmu_disp CLK_PCLK_SMMU_DECON0X>,
<&cmu_disp CLK_ACLK_SMMU_DECON1X>,
<&cmu_disp CLK_ACLK_XIU_DECON1X>,
<&cmu_disp CLK_PCLK_SMMU_DECON1X>,
<&cmu_disp CLK_SCLK_DECON_VCLK>,
<&cmu_disp CLK_SCLK_DECON_ECLK>;
clock-names = “aclk_decon”, “aclk_smmu_decon0x”, “aclk_xiu_decon0x”,
“pclk_smmu_decon0x”, “aclk_smmu_decon1x”, “aclk_xiu_decon1x”,
“pclk_smmu_decon1x”, “sclk_decon_vclk”, “sclk_decon_eclk”;
interrupt-names = “vsync”, “lcd_sys”;
interrupts = <0 202 0>, <0 203 0>;

ports {
    #address-cells = <1>;
    #size-cells = <0>;

    port@0 {
        reg = <0>;
        decon_to_mic: endpoint {
            remote-endpoint = <&mic_to_decon>;
        };
    };
};

};