Hi Jacopo,
On Sun, Aug 25, 2019 at 3:50 PM Jacopo Mondi jacopo+renesas@jmondi.org wrote:
Add device tree bindings documentation for the Renesas R-Car Display Unit Color Management Module.
CMM is the image enhancement module available on each R-Car DU video channel on R-Car Gen2 and Gen3 SoCs (V3H and V3M excluded).
Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org
Thanks for your patch!
--- /dev/null +++ b/Documentation/devicetree/bindings/display/renesas,cmm.txt @@ -0,0 +1,33 @@ +* Renesas R-Car Color Management Module (CMM)
+Renesas R-Car image enhancement module connected to R-Car DU video channels.
+Required properties:
- compatible: shall be one or more of the following:
- "renesas,cmm-r8a7795": for R8A7795 (R-Car H3) compatible CMM.
- "renesas,cmm-r8a7796": for R8A7796 (R-Car M3-W) compatible CMM.
- "renesas,cmm-r8a77965": for R8A77965 (R-Car M3-N) compatible CMM.
- "renesas,cmm-r8a77990": for R8A77990 (R-Car E3) compatible CMM.
- "renesas,cmm-r8a77995": for R8A77995 (R-Car D3) compatible CMM.
Please use "renesas,<socype->-cmm" instead of "renesas,cmm-<soctype>".
- "renesas,rcar-gen3-cmm": for a generic R-Car Gen3 compatible CMM.
- "renesas,rcar-gen2-cmm": for a generic R-Car Gen2 compatible CMM.
- When the generic compatible string is specified, the SoC-specific
- version corresponding to the platform should be listed first.
- reg: the address base and length of the memory area where CMM control
- registers are mapped to.
- clocks: phandle and clock-specifier pair to the CMM functional clock
- supplier.
Thinking about yaml validation:
power-domains? resets?
+Example: +--------
cmm0: cmm@fea40000 {compatible = "renesas,cmm-r8a7796";reg = <0 0xfea40000 0 0x1000>;power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;clocks = <&cpg CPG_MOD 711>;resets = <&cpg 711>;};
Gr{oetje,eeting}s,
Geert