Xylon binding of DRM driver and logiCVC IP core.
Signed-off-by: Davor Joja <[email protected]>
---
.../devicetree/bindings/drm/xylon/logicvc.txt | 79 ++++++++++++++++++++
.../devicetree/bindings/drm/xylon/xylon_drm.txt | 24 ++++++
2 files changed, 103 insertions(+)
create mode 100644 Documentation/devicetree/bindings/drm/xylon/logicvc.txt
create mode 100644 Documentation/devicetree/bindings/drm/xylon/xylon_drm.txt
diff --git a/Documentation/devicetree/bindings/drm/xylon/logicvc.txt
b/Documentation/devicetree/bindings/drm/xylon/logicvc.txt
new file mode 100644
index 0000000..505e655
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/xylon/logicvc.txt
@@ -0,0 +1,79 @@
+Binding for Xylon configurable video controller logiCVC IP core
+
+Required properties:
+ - compatible: value must be "xylon,logicvc-4.00.a"
+ - reg: MMIO base address and size of the logiCVC IP core address space
+ - interrupts-parent: the phandle for interrupt controller
+ - interrupts: the interrupt number
+ - background-layer-bits-per-pixel: background layer bits per pixel (16, 32)
+ if omitted, last available layer is logiCVC standard layer, which has its
+ own video memory of specific size, color format and specified
+ bits per pixel
+ if 16 or 32, last available layer is logiCVC background layer,
+ with only specified bits per pixel value
+ - interface: logiCVC to display physical interface
+ (0=Parallel, 1=ITU656)
+ - color-space: logiCVC to display physical color space
+ (0=RGB, 1=YCbCr 4:2:2, 2=YCbCr 4:4:4)
+ - is-readable-regs: all logiCVC registers are available for reading
+ if omitted, only Interrupt Status, Power Control and IP Version registers
+ are available for reading
+ - is-size-position: logiCVC functionality for controlling on screen layer size
+ and position is available
+ if omitted, functionality is not available
+ - pixel-stride: layer video memory width in pixels
+ common for all available logiCVC standard layers
+ - layer_0: layer has its own configuration described with below properties
+ - bits-per-pixel: layer bits per pixel configuration (16, 32)
+ layer is configured to be used with specific pixel width in bits
+ pixels written to layer video memory must match in size to configured
+ bits per pixel value
+ - format: layer format (0=RGB, 1=YCbCr)
+ layer is configured to be used with specific color format
+ pixels written to layer video memory must match specified color format
+ - transparency: layer transparency (0=Layer, 1=Pixel)
+ logiCVC layer can be configured to have transparency control on
+ layer or pixel level
+ "Layer" mode enables controlling of layer transparency by changing
+ alpha value in single logiCVC register
+ "Pixel" mode enables controlling of pixel transparency by changing
+ dedicated alpha bits of specific pixel in video memory
+
+Example:
+
+ logicvc_0: logicvc@40000000 {
+ compatible = "xylon,logicvc-4.00.a";
+ reg = <0x40000000 0x6000>;
+ interrupt-parent = <&gic_0>;
+ interrupts = <0 59 4>;
+ background-layer-bits-per-pixel = <32>;
+ interface = <0>;
+ color-space = <1>;
+ is-readable-regs;
+ is-size-position;
+ pixel-stride = <2048>;
+ layer_0 {
+ address = <0x30000000>;
+ bits-per-pixel = <16>;
+ format = <0>;
+ transparency = <0>;
+ };
+ layer_1 {
+ address = <0x30500000>;
+ bits-per-pixel = <32>;
+ format = <0>;
+ transparency = <0>;
+ };
+ layer_2 {
+ address = <0x30E00000>;
+ bits-per-pixel = <32>;
+ format = <0>;
+ transparency = <1>;
+ };
+ layer_3 {
+ address = <0x31700000>;
+ bits-per-pixel = <16>;
+ format = <1>;
+ transparency = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/drm/xylon/xylon_drm.txt
b/Documentation/devicetree/bindings/drm/xylon/xylon_drm.txt
new file mode 100644
index 0000000..da4940e
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/xylon/xylon_drm.txt
@@ -0,0 +1,24 @@
+Binding for Xylon DRM driver
+
+Xylon DRM driver supports the Xylon configurable video controller
+logiCVC FPGA IP core device.
+
+On ZC702, ZC706, ZED boards, logiCVC uses SI570 CCF driver for pixel clock
+generation, and ADV7511 DRM encoder driver to set video encoding configuration.
+
+Required properties:
+ - compatible: value should be "xylon,drm-1.00.a".
+ - clocks: the phandle for the pixel clock generator
+ - device: the phandle for logiCVC video controller device
+ - encoder: the phandle for the video encoder
+ - private-plane: logiCVC layer id used for DRM driver private plane
+
+Example:
+
+ xylon_drm {
+ compatible = "xylon,drm-1.00.a";
+ clocks = <&si570>;
+ device = <&logicvc_0>;
+ encoder = <&adv7511>;
+ private-plane = <0>;
+ };
--
1.7.9.5
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