Commit 3a32f22c authored by Sudeep Holla's avatar Sudeep Holla Committed by Rob Herring
Browse files

dt-bindings: mailbox : arm,mhu: Use examples with matching schema 



Currently the example provided in arm,mhu schema complains as below:

    Documentation/devicetree/bindings/mailbox/arm,mhu.example.dt.yaml :0:0:
    /example-0/soc/scb@2e000000: failed to match any schema with compatible:
    ['fujitsu,mb86s70-scb-1.0']

Fix the same using examples based on Juno platform. The old SCPI firmware
used MHU with standard 32-bit data transfer protocol while the new SCMI
firmware uses MHU and expects to be used in doorbell mode. Update example
with SCPI and SCMI firmware nodes to demonstrate both 32-bit data transfer
and doorbell mode of MHU operations

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20210604205710.1944363-6-sudeep.holla@arm.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 61b8ac9b

Documentation/devicetree/bindings/mailbox/arm,mhu.yaml

+38 −10
Original line number Diff line number Diff line
@@ -101,11 +101,19 @@ examples: 
            clocks = <&clock 0 2 1>;

            clock-names = "apb_pclk";

        };

    };



        mhu_client_scb: scb@2e000000 {

            compatible = "fujitsu,mb86s70-scb-1.0";

            reg = <0 0x2e000000 0 0x4000>;

    firmware {

        scpi {

            compatible = "arm,scpi";

            mboxes = <&mhuA 1>; /* HP-NonSecure */

            shmem = <&cpu_scp_hpri>; /* HP-NonSecure */



            scpi_devpd: power-controller {

                compatible = "arm,scpi-power-domains";

                num-domains = <2>;

                #power-domain-cells = <1>;

            };

        };

    };
@@ -125,16 +133,36 @@ examples: 
            clocks = <&clock 0 2 1>;

            clock-names = "apb_pclk";

        };

    };



        scpi {

            compatible = "arm,scpi";

            mboxes = <&mhuB 1 4>; /* HP-NonSecure, 5th doorbell */

            shmem = <&cpu_scp_hpri>; /* HP-NonSecure */

    firmware {

        scmi {

            compatible = "arm,scmi";

            mboxes = <&mhuB 0 0>, /* LP-NonSecure, 1st doorbell */

                     <&mhuB 0 1>; /* LP-NonSecure, 2nd doorbell */

            mbox-names = "tx", "rx";

            shmem = <&cpu_scp_lpri0>,

                    <&cpu_scp_lpri1>;



            scpi_devpd: power-controller {

                compatible = "arm,scpi-power-domains";

                num-domains = <2>;

            #address-cells = <1>;

            #size-cells = <0>;



            scmi_devpd: protocol@11 {

                reg = <0x11>;

                #power-domain-cells = <1>;

            };



            scmi_dvfs: protocol@13 {

                reg = <0x13>;

                #clock-cells = <1>;



                mboxes = <&mhuB 1 2>, /* HP-NonSecure, 3rd doorbell */

                         <&mhuB 1 3>; /* HP-NonSecure, 4th doorbell */

                mbox-names = "tx", "rx";

                shmem = <&cpu_scp_hpri0>,

                        <&cpu_scp_hpri1>;

            };

        };

    };



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