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

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Message-ID: <60ecf997de03e7426e0e54fc3eb937f95902419c.camel@mediatek.com>
Date:   Fri, 24 Dec 2021 17:42:25 +0800
From:   Roger Lu <roger.lu@...iatek.com>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        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

Hi AngeloGioacchino,

Sorry for the late reply.

On Wed, 2021-10-20 at 17:16 +0200, AngeloGioacchino Del Regno wrote:
> 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.

Sure, I'll fix it. Thanks for the heads-up.

> 
> > +				>;
> > +			};
> >   		};
> >   
> >   		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>;

Thanks for the example code and I will add them in the latest patch.

> 
> > +			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