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

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

diff --git a/kernel/Documentation/devicetree/bindings/display/exynos/exynos-mic.txt b/kernel/Documentation/devicetree/bindings/display/exynos/exynos-mic.txt
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+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>;
+                       };
+               };
+       };
+};