Device-Tree bindings for Samsung Exynos SoC mobile image compressor (MIC)
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MIC (mobile image compressor) resides between decon and mipi dsi. Mipi dsi is
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not capable to transfer high resoltuion frame data as decon can send. MIC
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solves this problem by compressing the frame data by 1/2 before it is
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transferred through mipi dsi. The compressed frame data must be uncompressed in
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the panel PCB.
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Required properties:
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- compatible: value should be "samsung,exynos5433-mic".
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- reg: physical base address and length of the MIC registers set and system
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register of mic.
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- clocks: must include clock specifiers corresponding to entries in the
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clock-names property.
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- clock-names: list of clock names sorted in the same order as the clocks
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property. Must contain "pclk_mic0", "sclk_rgb_vclk_to_mic0".
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- samsung,disp-syscon: the reference node for syscon for DISP block.
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- ports: contains a port which is connected to decon node and dsi node.
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address-cells and size-cells must 1 and 0, respectively.
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- port: contains an endpoint node which is connected to the endpoint in the
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decon node or dsi node. The reg value must be 0 and 1 respectively.
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Example:
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SoC specific DT entry:
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mic: mic@13930000 {
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compatible = "samsung,exynos5433-mic";
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reg = <0x13930000 0x48>;
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clocks = <&cmu_disp CLK_PCLK_MIC0>,
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<&cmu_disp CLK_SCLK_RGB_VCLK_TO_MIC0>;
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clock-names = "pclk_mic0", "sclk_rgb_vclk_to_mic0";
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samsung,disp-syscon = <&syscon_disp>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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mic_to_decon: endpoint {
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remote-endpoint = <&decon_to_mic>;
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};
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};
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port@1 {
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reg = <1>;
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mic_to_dsi: endpoint {
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remote-endpoint = <&dsi_to_mic>;
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};
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};
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};
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};
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