linux-kernel - Re: [PATCH v7] arm64: dts: qcom: sc7180: Add WCN3990 WLAN module device node

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Date:   Fri, 27 Mar 2020 16:00:25 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Rakesh Pillai <pillair@...eaurora.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v7] arm64: dts: qcom: sc7180: Add WCN3990 WLAN module
 device node

On Thu 26 Mar 03:48 PDT 2020, Rakesh Pillai wrote:

> Add device node for the ath10k SNOC platform driver probe
> and add resources required for WCN3990 on sc7180 soc.
> 
> Signed-off-by: Rakesh Pillai <pillair@...eaurora.org>
> ---
> 
> Depends on https://patchwork.kernel.org/patch/11455345/
> The above patch adds the dt-bindings for wifi-firmware
> subnode
> ---
>  arch/arm64/boot/dts/qcom/sc7180-idp.dts |  8 ++++++++
>  arch/arm64/boot/dts/qcom/sc7180.dtsi    | 27 +++++++++++++++++++++++++++
>  2 files changed, 35 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> index 043c9b9..a6168a4 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> @@ -327,6 +327,14 @@
>  	};
>  };
>  
> +&wifi {
> +	status = "okay";
> +	qcom,msa-fixed-perm;
> +	wifi-firmware {
> +		iommus = <&apps_smmu 0xc2 0x1>;

How is sc7180 different from sdm845, where the iommus property goes
directly in the &wifi node?

Regards,
Bjorn

> +	};
> +};
> +
>  /* PINCTRL - additions to nodes defined in sc7180.dtsi */
>  
>  &qspi_clk {
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index 998f101..2745128 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -83,6 +83,11 @@
>  			reg = <0 0x8f600000 0 0x500000>;
>  			no-map;
>  		};
> +
> +		wlan_fw_mem: memory@...04000 {
> +			reg = <0 0x94104000 0 0x200000>;
> +			no-map;
> +		};
>  	};
>  
>  	cpus {
> @@ -835,6 +840,28 @@
>  			};
>  		};
>  
> +		wifi: wifi@...00000 {
> +			compatible = "qcom,wcn3990-wifi";
> +			reg = <0 0x18800000 0 0x800000>;
> +			reg-names = "membase";
> +			iommus = <&apps_smmu 0xc0 0x1>;
> +			interrupts =
> +				<GIC_SPI 414 IRQ_TYPE_LEVEL_HIGH /* CE0 */ >,
> +				<GIC_SPI 415 IRQ_TYPE_LEVEL_HIGH /* CE1 */ >,
> +				<GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH /* CE2 */ >,
> +				<GIC_SPI 417 IRQ_TYPE_LEVEL_HIGH /* CE3 */ >,
> +				<GIC_SPI 418 IRQ_TYPE_LEVEL_HIGH /* CE4 */ >,
> +				<GIC_SPI 419 IRQ_TYPE_LEVEL_HIGH /* CE5 */ >,
> +				<GIC_SPI 420 IRQ_TYPE_LEVEL_HIGH /* CE6 */ >,
> +				<GIC_SPI 421 IRQ_TYPE_LEVEL_HIGH /* CE7 */ >,
> +				<GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH /* CE8 */ >,
> +				<GIC_SPI 423 IRQ_TYPE_LEVEL_HIGH /* CE9 */ >,
> +				<GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH /* CE10 */>,
> +				<GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH /* CE11 */>;
> +			memory-region = <&wlan_fw_mem>;
> +			status = "disabled";
> +		};
> +
>  		config_noc: interconnect@...0000 {
>  			compatible = "qcom,sc7180-config-noc";
>  			reg = <0 0x01500000 0 0x28000>;
> -- 
> 2.7.4