linux-kernel - Re: [PATCH 12/12] arm64: dts: qcom: Enable Q6v5 WCSS for ipq8074 SoC

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Date:   Wed, 17 Jul 2019 13:13:26 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org,
        david.brown@...aro.org, devicetree@...r.kernel.org,
        gokulsri@...eaurora.org, jassisinghbrar@...il.com,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        mark.rutland@....com, mturquette@...libre.com, ohad@...ery.com,
        robh+dt@...nel.org, sricharan@...eaurora.org
Subject: Re: [PATCH 12/12] arm64: dts: qcom: Enable Q6v5 WCSS for ipq8074 SoC

Quoting Gokul Sriram Palanisamy (2019-07-11 08:41:08)
> diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> index 6a61a63..c24e3f6 100644
> --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> @@ -10,6 +10,22 @@
>         model = "Qualcomm Technologies, Inc. IPQ8074";
>         compatible = "qcom,ipq8074";
>  
> +       reserved-memory {
> +               #address-cells = <2>;
> +               #size-cells = <2>;
> +               ranges;
> +
> +               smem_region:smem@...00000 {

Put a space between the colon and the node name. Also, just call it
memory@...00000.

		smem_region: memory@...00000 {

> +                       no-map;
> +                       reg = <0x0 0x4ab00000 0x0 0x00100000>;
> +               };
> +
> +               q6_region: q6@...00000 {

memory@

> +                       no-map;
> +                       reg = <0x0 0x4b000000 0x0 0x05f00000>;
> +               };
> +       };
> +
>         firmware {
>                 scm {
>                         compatible = "qcom,scm-ipq8074", "qcom,scm";
> @@ -431,6 +447,115 @@
>                                       "axi_m_sticky";
>                         status = "disabled";
>                 };
> +               apcs: syscon@...1000 {

Add a newline between nodes please.

> +                       compatible = "syscon";
> +                       reg = <0x0B111000 0x1000>;
> +               };
> +
> +               wcss: smp2p-wcss {

This node should be outside the soc node because it doesn't have a reg
property

> +                       compatible = "qcom,smp2p";
> +                       qcom,smem = <435>, <428>;
> +
> +                       interrupt-parent = <&intc>;
> +                       interrupts = <0 322 1>;
> +
> +                       qcom,ipc = <&apcs 8 9>;
> +
> +                       qcom,local-pid = <0>;
> +                       qcom,remote-pid = <1>;
> +
> +                       wcss_smp2p_out: master-kernel {
> +                               qcom,entry-name = "master-kernel";
> +                               qcom,smp2p-feature-ssr-ack;
> +                               #qcom,smem-state-cells = <1>;
> +                       };
> +
> +                       wcss_smp2p_in: slave-kernel {
> +                               qcom,entry-name = "slave-kernel";
> +
> +                               interrupt-controller;
> +                               #interrupt-cells = <2>;
> +                       };
> +               };
> +
> +               tcsr_q6_block: syscon@...5000 {

Do you really need _block in these aliases?

> +                       compatible = "syscon";
> +                       reg = <0x1945000 0xE000>;
> +               };
> +
> +               tcsr_mutex_block: syscon@...d000 {
> +                       compatible = "syscon";
> +                       reg = <0x1905000 0x8000>;
> +               };
> +
> +               tcsr_mutex: hwlock@...d000 {
> +                       compatible = "qcom,tcsr-mutex";
> +                       syscon = <&tcsr_mutex_block 0 0x80>;
> +                       #hwlock-cells = <1>;
> +               };
> +
> +               smem: qcom,smem@...00000 {

lowercase please. And just 'smem' I guess.

> +                       compatible = "qcom,smem";
> +                       memory-region = <&smem_region>;
> +                       hwlocks = <&tcsr_mutex 0>;
> +               };
> +
> +               apcs_glb: mailbox@...1000 {
> +                       compatible = "qcom,ipq8074-apcs-apps-global";
> +                       reg = <0xb111000 0x1000>;

These addresses should be padded out to 8 digits for the address part
(not the size).

> +
> +                       #mbox-cells = <1>;
> +               };
> +
> +               q6v5_wcss: q6v5_wcss@...0000 {

lowercase.

> +                       compatible = "qcom,ipq8074-wcss-pil";
> +                       reg = <0xCD00000 0x4040>,
> +                             <0x4AB000 0x20>;