52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
Device-Tree bindings for Samsung Exynos SoC mobile image compressor (MIC)
|
|
|
|
MIC (mobile image compressor) resides between decon and mipi dsi. Mipi dsi is
|
|
not capable to transfer high resoltuion frame data as decon can send. MIC
|
|
solves this problem by compressing the frame data by 1/2 before it is
|
|
transferred through mipi dsi. The compressed frame data must be uncompressed in
|
|
the panel PCB.
|
|
|
|
Required properties:
|
|
- compatible: value should be "samsung,exynos5433-mic".
|
|
- reg: physical base address and length of the MIC registers set and system
|
|
register of mic.
|
|
- 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_mic0", "sclk_rgb_vclk_to_mic0".
|
|
- samsung,disp-syscon: the reference node for syscon for DISP block.
|
|
- ports: contains a port which is connected to decon node and dsi node.
|
|
address-cells and size-cells must 1 and 0, respectively.
|
|
- port: contains an endpoint node which is connected to the endpoint in the
|
|
decon node or dsi node. The reg value must be 0 and 1 respectively.
|
|
|
|
Example:
|
|
SoC specific DT entry:
|
|
mic: mic@13930000 {
|
|
compatible = "samsung,exynos5433-mic";
|
|
reg = <0x13930000 0x48>;
|
|
clocks = <&cmu_disp CLK_PCLK_MIC0>,
|
|
<&cmu_disp CLK_SCLK_RGB_VCLK_TO_MIC0>;
|
|
clock-names = "pclk_mic0", "sclk_rgb_vclk_to_mic0";
|
|
samsung,disp-syscon = <&syscon_disp>;
|
|
|
|
ports {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
port@0 {
|
|
reg = <0>;
|
|
mic_to_decon: endpoint {
|
|
remote-endpoint = <&decon_to_mic>;
|
|
};
|
|
};
|
|
|
|
port@1 {
|
|
reg = <1>;
|
|
mic_to_dsi: endpoint {
|
|
remote-endpoint = <&dsi_to_mic>;
|
|
};
|
|
};
|
|
};
|
|
};
|