Message-ID: <aba45ae9-8558-50c1-e5ad-dd910dacdbb3@linaro.org>
Date:   Tue, 14 Feb 2023 09:28:34 +0100
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Subject: Re: [PATCH 5/9] dt-bindings: remoteproc: mpss: Document
 QDU1000/QRU1000 mpss devices
Content-Language: en-US
To:     Melody Olvera <quic_molvera@quicinc.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Jassi Brar <jassisinghbrar@gmail.com>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Robert Marko <robimarko@gmail.com>,
        Guru Das Srinagesh <quic_gurus@quicinc.com>
Cc:     Konrad Dybcio <konrad.dybcio@linaro.org>,
        Manivannan Sadhasivam <mani@kernel.org>,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-remoteproc@vger.kernel.org
References: <20230213185218.166520-1-quic_molvera@quicinc.com>
 <20230213185218.166520-6-quic_molvera@quicinc.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20230213185218.166520-6-quic_molvera@quicinc.com>
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Precedence: bulk

On 13/02/2023 19:52, Melody Olvera wrote:
> This documents the compatible for the component used to boot the
> MPSS on the QDU1000 and QRU1000 SoCs.
> 
> The QDU1000 and QRU1000 mpss boot process now requires the specification
> of an RMB register space to complete the handshake needed to start or
> attach the mpss.
> 
> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
> ---
>  .../bindings/remoteproc/qcom,qdu1000-pas.yaml | 127 ++++++++++++++++++
>  1 file changed, 127 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml
> new file mode 100644
> index 000000000000..eb6ade984778
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml
> @@ -0,0 +1,127 @@
> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/remoteproc/qcom,qdu1000-pas.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm QDU1000 Peripheral Authentication Service
> +
> +maintainers:
> +  - Melody Olvera <quic_molvera@quicinc.com>
> +
> +description:
> +  Qualcomm QDU1000 SoC Peripheral Authentication Service loads and boots firmware
> +  on the Qualcomm DSP Hexagon cores.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,qdu1000-mpss-pas

What about other remote processors? The subject prefix suggests it is
only for mpss, but filename is different.

> +
> +  reg:
> +    maxItems: 2
> +
> +  clocks:
> +    items:
> +      - description: XO clock
> +
> +  clock-names:
> +    items:
> +      - const: xo
> +
> +  qcom,qmp:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: Reference to the AOSS side-channel message RAM.
> +
> +  smd-edge: false
> +
> +  firmware-name:
> +    $ref: /schemas/types.yaml#/definitions/string-array
> +    items:
> +      - description: Firmware name of the Hexagon core
> +      - description: Firmware name of the Hexagon Devicetree
> +
> +  memory-region:
> +    items:
> +      - description: Memory region for main Firmware authentication
> +      - description: Memory region for Devicetree Firmware authentication
> +      - description: DSM Memory region
> +
> +  interrupts:
> +    minItems: 6
> +
> +  interrupt-names:
> +    minItems: 6
> +
> +  interconnects:
> +    minItems: 1

You can drop the property. It's coming from qcom,pas-common.yaml

> +
> +  power-domains:
> +    items:
> +      - description: CX power domain
> +      - description: MSS power domain
> +
> +  power-domain-names:
> +    items:
> +      - const: cx
> +      - const: mss
> +
> +required:
> +  - compatible
> +  - reg
> +
> +allOf:
> +  - $ref: /schemas/remoteproc/qcom,pas-common.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,rpmh.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/mailbox/qcom-ipcc.h>
> +
> +    remoteproc@4080000 {
> +        compatible = "qcom,qdu1000-mpss-pas";
> +        reg = <0x4080000 0x4040>,
> +              <0x4180000 0x1000>;
> +
> +        clocks = <&rpmhcc RPMH_CXO_CLK>;
> +        clock-names = "xo";
> +
> +        interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
> +                              <&smp2p_modem_in 0 IRQ_TYPE_EDGE_RISING>,
> +                              <&smp2p_modem_in 1 IRQ_TYPE_EDGE_RISING>,
> +                              <&smp2p_modem_in 2 IRQ_TYPE_EDGE_RISING>,
> +                              <&smp2p_modem_in 3 IRQ_TYPE_EDGE_RISING>
> +                              <&smp2p_modem_in 7 IRQ_TYPE_EDGE_RISING>;
> +        interrupt-names = "wdog", "fatal", "ready", "handover",
> +                          "stop-ack", "shutdown-ack";
> +
> +        memory-region = <&mpss_mem>, <&dtb_mpss_mem>, <&mpss_dsm_mem>;
> +
> +        firmware-name = "modem.mdt",
> +                        "modem_dtb.mdt";
> +
> +        power-domains = <&rpmhpd QDU1000_CX>,
> +                        <&rpmhpd QDU1000_MSS>;
> +        power-domain-names = "cx", "mss";
> +
> +        interconnects = <&mc_virt MASTER_LLCC &mc_virt SLAVE_EBI1>;
> +
> +        qcom,qmp = <&aoss_qmp>;
> +
> +        qcom,smem-states = <&smp2p_adsp_out 0>;
> +        qcom,smem-state-names = "stop";
> +
> +        glink-edge {
> +            interrupts-extended = <&ipcc IPCC_CLIENT_MPSS
> +                                         IPCC_MPROC_SIGNAL_GLINK_QMP
> +                                         IRQ_TYPE_EDGE_RISING>;
> +            mboxes = <&ipcc IPCC_CLIENT_MPSS IPCC_MPROC_SIGNAL_GLINK_QMP>;
> +
> +            label = "modem";
> +            qcom,remote-pid = <2>;
> +

Drop blank line

> +        };
> +    };

Best regards,
Krzysztof