These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / display / exynos / exynos5433-decon.txt

diff --git a/kernel/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt b/kernel/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt
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+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 "samsung,exynos5433-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: VSYNC, LCD_SYSTEM. The interrupt specifier format
+             depends on the interrupt controller used.
+- interrupt-names: should contain the interrupt names: "vsync", "lcd_sys"
+                  in the same order as they were listed in the interrupts
+                  property.
+- 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 "aclk_decon", "aclk_smmu_decon0x",
+              "aclk_xiu_decon0x", "pclk_smmu_decon0x", 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.
+- i80-if-timings: specify whether the panel which is connected to decon uses
+                 i80 lcd interface or mipi video interface. This node contains
+                 no timing information as that of fimd does. Because there is
+                 no register in decon to specify i80 interface timing value,
+                 it is not needed, but make it remain to use same kind of node
+                 in fimd and exynos7 decon.
+
+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_SCLK_DECON_VCLK>,
+               <&cmu_disp CLK_SCLK_DECON_ECLK>;
+       clock-names = "aclk_decon", "aclk_smmu_decon0x", "aclk_xiu_decon0x",
+               "pclk_smmu_decon0x", "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>;
+                       };
+               };
+       };
+};
+
+Board specific DT entry:
+&decon {
+       i80-if-timings {
+       };
+};