linux-kernel - Re: [PATCH v2 3/3] arm64: dts: qcom: sa8775p: pmic: add the sdam

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Date:   Tue, 18 Apr 2023 14:11:26 -0400
From:   Eric Chanudet <echanude@...hat.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Parikshit Pareek <quic_ppareek@...cinc.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: sa8775p: pmic: add the sdam_0
 node

On Mon, Apr 17, 2023 at 04:55:36PM +0200, Bartosz Golaszewski wrote:
> From: Parikshit Pareek <quic_ppareek@...cinc.com>
> 
> Introduce sdam_0 node, which is to be used via nvmem for power on
> reasons during reboot. Add supported PoN reaons supported via sdam_0
> node.
> 
> Signed-off-by: Parikshit Pareek <quic_ppareek@...cinc.com>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)

Tested-by: Eric Chanudet <echanude@...hat.com>

> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi b/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
> index 5abdc239d3a6..3c3b6287cd27 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
> @@ -88,6 +88,14 @@ trip1 {
>  			};
>  		};
>  	};
> +
> +	reboot-mode {
> +		compatible = "nvmem-reboot-mode";
> +		nvmem-cells = <&reboot_reason>;
> +		nvmem-cell-names = "reboot-mode";
> +		mode-recovery = <0x01>;
> +		mode-bootloader = <0x02>;
> +	};
>  };
>  
>  &spmi_bus {
> @@ -133,6 +141,19 @@ pmm8654au_0_gpios: gpio@...0 {
>  			interrupt-controller;
>  			#interrupt-cells = <2>;
>  		};
> +
> +		pmm8654au_0_sdam_0: nvram@...0 {
> +			compatible = "qcom,spmi-sdam";
> +			reg = <0x7100>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0 0x7100 0x100>;
> +
> +			reboot_reason: reboot-reason@48 {
> +				reg = <0x48 0x1>;
> +				bits = <1 7>;
> +			};
> +		};
>  	};
>  
>  	pmm8654au_1: pmic@2 {
> -- 
> 2.37.2
> 

-- 
Eric Chanudet