linux-kernel - Re: [PATCH v16 6/7] arm64: dts: mt8192: add svs device information

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Message-ID: <855e004b-b128-70f7-b1d2-9fe957c94e08@somainline.org>
Date:   Wed, 20 Oct 2021 17:16:00 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
To:     Roger Lu <roger.lu@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Enric Balletbo Serra <eballetbo@...il.com>,
        Kevin Hilman <khilman@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Nicolas Boichat <drinkcat@...gle.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
Cc:     Fan Chen <fan.chen@...iatek.com>,
        HenryC Chen <HenryC.Chen@...iatek.com>,
        YT Lee <yt.lee@...iatek.com>,
        Xiaoqing Liu <Xiaoqing.Liu@...iatek.com>,
        Charles Yang <Charles.Yang@...iatek.com>,
        Angus Lin <Angus.Lin@...iatek.com>,
        Mark Rutland <mark.rutland@....com>,
        Nishanth Menon <nm@...com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v16 6/7] arm64: dts: mt8192: add svs device information

Il 28/04/21 08:54, Roger Lu ha scritto:
> add compitable/reg/irq/clock/efuse/reset setting in svs node
> 
> Signed-off-by: Roger Lu <roger.lu@...iatek.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8192.dtsi | 34 ++++++++++++++++++++++++
>   1 file changed, 34 insertions(+)
> 

Hello Roger,
thanks for this series! However, there is an issue with this patch:

> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> index fe24cc66ff7a..e9816a56d87b 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> @@ -270,6 +270,14 @@
>   			compatible = "mediatek,mt8192-infracfg", "syscon";
>   			reg = <0 0x10001000 0 0x1000>;
>   			#clock-cells = <1>;
> +
> +			infracfg_rst: reset-controller {
> +				compatible = "mediatek,infra-reset", "ti,syscon-reset";
> +				#reset-cells = <1>;
> +				ti,reset-bits = <
> +					0x150 5 0x154 5 0 0     (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* 0: svs */

You are using macros here, which are defined in dt-bindings/reset/ti-syscon.h
hovever, you are not including this header in this devicetree, so it's not
compiling.

Please fix it.

> +				>;
> +			};
>   		};
>   
>   		pericfg: syscon@...03000 {
> @@ -564,6 +572,20 @@
>   			status = "disabled";
>   		};
>   
> +		svs: svs@...0b000 {
> +			compatible = "mediatek,mt8192-svs";
> +			reg = <0 0x1100b000 0 0x1000>;
> +			interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH 0>;
> +			clocks = <&infracfg CLK_INFRA_THERM>;
> +			clock-names = "main";
> +			nvmem-cells = <&svs_calibration>,
> +				      <&lvts_e_data1>;
> +			nvmem-cell-names = "svs-calibration-data",
> +					   "t-calibration-data";
> +			resets = <&infracfg_rst 0>;
> +			reset-names = "svs_rst";
> +		};
> +
>   		spi1: spi@...10000 {
>   			compatible = "mediatek,mt8192-spi",
>   				     "mediatek,mt6765-spi";
> @@ -681,6 +703,18 @@
>   			#clock-cells = <1>;
>   		};
>   
> +		efuse: efuse@...10000 {
> +			compatible = "mediatek,efuse";
> +			reg = <0 0x11c10000 0 0x1000>;
> +

arch/arm64/boot/dts/mediatek/mt8192.dtsi:510.5-24: Warning (reg_format): 
/soc/efuse@...10000/data1:reg: property has invalid length (8 bytes) 
(#address-cells == 2, #size-cells == 1)

arch/arm64/boot/dts/mediatek/mt8192.dtsi:513.5-24: Warning (reg_format): 
/soc/efuse@...10000/calib@580:reg: property has invalid length (8 bytes) 
(#address-cells == 2, #size-cells == 1)


In short, you should add here:
			#address-cells = <1>;
			#size-cells = <1>;

> +			lvts_e_data1: data1 {
> +				reg = <0x1C0 0x58>;
> +			};
> +			svs_calibration: calib@580 {
> +				reg = <0x580 0x68>;
> +			};
> +		};
> +
>   		i2c3: i2c3@...b0000 {
>   			compatible = "mediatek,mt8192-i2c";
>   			reg = <0 0x11cb0000 0 0x1000>,
> 

Regards,
- Angelo