linux-kernel - Re: [PATCH 7/8] ARM: dts: qcom: msm8226: Add modem remoteproc node

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Message-ID: <Y8CInQ8UJdEen33p@gerhold.net>
Date:   Thu, 12 Jan 2023 23:24:29 +0100
From:   Stephan Gerhold <stephan@...hold.net>
To:     Matti Lehtimäki <matti.lehtimaki@...il.com>
Cc:     linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Luca Weiss <luca@...tu.xyz>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/8] ARM: dts: qcom: msm8226: Add modem remoteproc node

On Thu, Jan 12, 2023 at 10:26:10PM +0200, Matti Lehtimäki wrote:
> From: Luca Weiss <luca@...tu.xyz>
> 
> Add a node for the modem remoteproc found on MSM8226.
> 
> Signed-off-by: Luca Weiss <luca@...tu.xyz>
> Co-developed-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
> Signed-off-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
> ---
>  arch/arm/boot/dts/qcom-msm8226.dtsi | 86 +++++++++++++++++++++++++++++
>  1 file changed, 86 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-msm8226.dtsi b/arch/arm/boot/dts/qcom-msm8226.dtsi
> index 2639167c8976..34ea9cf46ae0 100644
> --- a/arch/arm/boot/dts/qcom-msm8226.dtsi
> +++ b/arch/arm/boot/dts/qcom-msm8226.dtsi
> [...]
> @@ -620,6 +655,57 @@ rpm_msg_ram: sram@...28000 {
>  			reg = <0xfc428000 0x4000>;
>  		};
>  
> +		modem: remoteproc@...80000 {
> +			compatible = "qcom,msm8226-mss-pil";
> +			reg = <0xfc880000 0x100>,
> +			      <0xfc820000 0x020>;
> +			reg-names = "qdsp6", "rmb";
> +
> +			interrupts-extended = <&intc GIC_SPI 24 IRQ_TYPE_EDGE_RISING>,
> +					      <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
> +					      <&modem_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
> +					      <&modem_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
> +					      <&modem_smp2p_in 3 IRQ_TYPE_EDGE_RISING>;
> +			interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
> +
> +			clocks = <&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
> +				 <&gcc GCC_MSS_CFG_AHB_CLK>,
> +				 <&gcc GCC_BOOT_ROM_AHB_CLK>,
> +				 <&xo_board>;
> +			clock-names = "iface", "bus", "mem", "xo";
> +
> +			resets = <&gcc GCC_MSS_RESTART>;
> +			reset-names = "mss_restart";
> +
> +			power-domains = <&rpmpd MSM8226_VDDCX>;
> +			power-domain-names = "cx";
> +
> +			qcom,ext-bhs-reg = <&tcsr_regs_1 0x194>;
> +			qcom,halt-regs = <&tcsr_regs_1 0x180 0x200 0x280>;
> +
> +			qcom,smem-states = <&modem_smp2p_out 0>;
> +			qcom,smem-state-names = "stop";
> +
> +			status = "disabled";
> +
> +			mba {
> +				memory-region = <&mba_region>;
> +			};
> +
> +			mpss {
> +				memory-region = <&mpss_region>;
> +			};

Please prefer using memory-region with two items in the node above, as
suggested in the DT schema:

			memory-region = <&mba_region>, <&mpss_region>;

Thanks,
Stephan