Re: arch/arm64/boot/dts/renesas/r9a07g043u.dtsi:85.11-94.6: Warning (graph_child_address): /soc/video@10830000/ports/port@1: graph node has single child node 'endpoint@0', #address-cells/#size-cells are not necessary

From: Philip Li
Date: Sun Jun 09 2024 - 01:20:17 EST

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In reply to: Biju Das: "RE: arch/arm64/boot/dts/renesas/r9a07g043u.dtsi:85.11-94.6: Warning (graph_child_address): /soc/video@10830000/ports/port@1: graph node has single child node 'endpoint@0', #address-cells/#size-cells are not necessary"
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On Sat, Jun 08, 2024 at 08:42:56AM +0000, Biju Das wrote:
> Hi All,
>
> > -----Original Message-----
> > From: kernel test robot <lkp@xxxxxxxxx>
> > Sent: Saturday, June 8, 2024 6:37 AM
> > To: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > Cc: oe-kbuild-all@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Geert Uytterhoeven
> > <geert+renesas@xxxxxxxxx>
> > Subject: arch/arm64/boot/dts/renesas/r9a07g043u.dtsi:85.11-94.6: Warning (graph_child_address):
> > /soc/video@10830000/ports/port@1: graph node has single child node 'endpoint@0', #address-
> > cells/#size-cells are not necessary
> >
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: dc772f8237f9b0c9ea3f34d0dc4a57d1f6a5070d
> > commit: 971c17f879352adc719ff215e0769f8e0a49d7c4 arm64: dts: renesas: r9a07g043u: Add CSI and CRU
> > nodes
> > date: 4 months ago
> > compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build):
> > (https://download.01.org/0day-ci/archive/20240608/202406081329.snoMrZsJ-lkp@xxxxxxxxx/reproduce)
>
> As per this,
> dasb@ree-du1sdd5:~/lkp-tests$ mkdir build_dir && cp config build_dir/.config
> cp: cannot stat 'config': No such file or directory

sorry, looks this is confusing to "cp config build_dir/.config" as there's no .config
for this case. We will fix the reproduce step.

>
> So I have generated .config and copied as config
>
> Than I got the the below issue,
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
> -bash: /data/dasb/lkp-tests/kbuild/make.cross: No such file or directory

Is it possible the lkp-tests is not up to date? the make.cross code was uploaded
recently.

>
> Can you please provide the details how to get this tool chain?
>
> So that I can reproduce and fix the issue in same environment.

You can try below steps (without the cp .config)

$ mkdir build_dir
$ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
$ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

Or you can ignore the full make, just do below after make olddefconfig

$ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash dtbs_check

e.g.

$ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/upstream/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash dtbs_check 2>&1 | grep 'arch/arm64/boot/dts/renesas/r9a07g043u.dtsi:85.11-94.6'
../arch/arm64/boot/dts/renesas/r9a07g043u.dtsi:85.11-94.6: Warning (graph_child_address): /soc/video@10830000/ports/port@1: graph node has single child node 'endpoint@0', #address-cells/#size-cells are not necessary

Thanks

>
> Cheers,
> Biju
>
> >
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of the same
> > patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > | Closes:
> > | https://lore.kernel.org/oe-kbuild-all/202406081329.snoMrZsJ-lkp@intel.
> > | com/
> >
> > dtcheck warnings: (new ones prefixed by >>)
> > >> arch/arm64/boot/dts/renesas/r9a07g043u.dtsi:85.11-94.6: Warning
> > >> (graph_child_address): /soc/video@10830000/ports/port@1: graph node
> > >> has single child node 'endpoint@0', #address-cells/#size-cells are
> > >> not necessary
> > >> arch/arm64/boot/dts/renesas/r9a07g043u.dtsi:120.11-129.6: Warning
> > >> (graph_child_address): /soc/csi2@10830400/ports/port@1: graph node
> > >> has single child node 'endpoint@0', #address-cells/#size-cells are
> > >> not necessary
> >
> > vim +85 arch/arm64/boot/dts/renesas/r9a07g043u.dtsi
> >
> > 60
> > 61 &soc {
> > 62 interrupt-parent = <&gic>;
> > 63
> > 64 cru: video@10830000 {
> > 65 compatible = "renesas,r9a07g043-cru", "renesas,rzg2l-cru";
> > 66 reg = <0 0x10830000 0 0x400>;
> > 67 clocks = <&cpg CPG_MOD R9A07G043_CRU_VCLK>,
> > 68 <&cpg CPG_MOD R9A07G043_CRU_PCLK>,
> > 69 <&cpg CPG_MOD R9A07G043_CRU_ACLK>;
> > 70 clock-names = "video", "apb", "axi";
> > 71 interrupts = <SOC_PERIPHERAL_IRQ(167) IRQ_TYPE_LEVEL_HIGH>,
> > 72 <SOC_PERIPHERAL_IRQ(168) IRQ_TYPE_LEVEL_HIGH>,
> > 73 <SOC_PERIPHERAL_IRQ(169) IRQ_TYPE_LEVEL_HIGH>;
> > 74 interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
> > 75 resets = <&cpg R9A07G043_CRU_PRESETN>,
> > 76 <&cpg R9A07G043_CRU_ARESETN>;
> > 77 reset-names = "presetn", "aresetn";
> > 78 power-domains = <&cpg>;
> > 79 status = "disabled";
> > 80
> > 81 ports {
> > 82 #address-cells = <1>;
> > 83 #size-cells = <0>;
> > 84
> > > 85 port@1 {
> > 86 #address-cells = <1>;
> > 87 #size-cells = <0>;
> > 88
> > 89 reg = <1>;
> > 90 crucsi2: endpoint@0 {
> > 91 reg = <0>;
> > 92 remote-endpoint = <&csi2cru>;
> > 93 };
> > 94 };
> > 95 };
> > 96 };
> > 97
> > 98 csi2: csi2@10830400 {
> > 99 compatible = "renesas,r9a07g043-csi2", "renesas,rzg2l-csi2";
> > 100 reg = <0 0x10830400 0 0xfc00>;
> > 101 interrupts = <SOC_PERIPHERAL_IRQ(166) IRQ_TYPE_LEVEL_HIGH>;
> > 102 clocks = <&cpg CPG_MOD R9A07G043_CRU_SYSCLK>,
> > 103 <&cpg CPG_MOD R9A07G043_CRU_VCLK>,
> > 104 <&cpg CPG_MOD R9A07G043_CRU_PCLK>;
> > 105 clock-names = "system", "video", "apb";
> > 106 resets = <&cpg R9A07G043_CRU_PRESETN>,
> > 107 <&cpg R9A07G043_CRU_CMN_RSTB>;
> > 108 reset-names = "presetn", "cmn-rstb";
> > 109 power-domains = <&cpg>;
> > 110 status = "disabled";
> > 111
> > 112 ports {
> > 113 #address-cells = <1>;
> > 114 #size-cells = <0>;
> > 115
> > 116 port@0 {
> > 117 reg = <0>;
> > 118 };
> > 119
> > > 120 port@1 {
> > 121 #address-cells = <1>;
> > 122 #size-cells = <0>;
> > 123 reg = <1>;
> > 124
> > 125 csi2cru: endpoint@0 {
> > 126 reg = <0>;
> > 127 remote-endpoint = <&crucsi2>;
> > 128 };
> > 129 };
> > 130 };
> > 131 };
> > 132
> > 133 irqc: interrupt-controller@110a0000 {
> > 134 compatible = "renesas,r9a07g043u-irqc",
> > 135 "renesas,rzg2l-irqc";
> > 136 reg = <0 0x110a0000 0 0x10000>;
> > 137 #interrupt-cells = <2>;
> > 138 #address-cells = <0>;
> > 139 interrupt-controller;
> > 140 interrupts = <SOC_PERIPHERAL_IRQ(0) IRQ_TYPE_LEVEL_HIGH>,
> > 141 <SOC_PERIPHERAL_IRQ(1) IRQ_TYPE_LEVEL_HIGH>,
> > 142 <SOC_PERIPHERAL_IRQ(2) IRQ_TYPE_LEVEL_HIGH>,
> > 143 <SOC_PERIPHERAL_IRQ(3) IRQ_TYPE_LEVEL_HIGH>,
> > 144 <SOC_PERIPHERAL_IRQ(4) IRQ_TYPE_LEVEL_HIGH>,
> > 145 <SOC_PERIPHERAL_IRQ(5) IRQ_TYPE_LEVEL_HIGH>,
> > 146 <SOC_PERIPHERAL_IRQ(6) IRQ_TYPE_LEVEL_HIGH>,
> > 147 <SOC_PERIPHERAL_IRQ(7) IRQ_TYPE_LEVEL_HIGH>,
> > 148 <SOC_PERIPHERAL_IRQ(8) IRQ_TYPE_LEVEL_HIGH>,
> > 149 <SOC_PERIPHERAL_IRQ(444) IRQ_TYPE_LEVEL_HIGH>,
> > 150 <SOC_PERIPHERAL_IRQ(445) IRQ_TYPE_LEVEL_HIGH>,
> > 151 <SOC_PERIPHERAL_IRQ(446) IRQ_TYPE_LEVEL_HIGH>,
> > 152 <SOC_PERIPHERAL_IRQ(447) IRQ_TYPE_LEVEL_HIGH>,
> > 153 <SOC_PERIPHERAL_IRQ(448) IRQ_TYPE_LEVEL_HIGH>,
> > 154 <SOC_PERIPHERAL_IRQ(449) IRQ_TYPE_LEVEL_HIGH>,
> > 155 <SOC_PERIPHERAL_IRQ(450) IRQ_TYPE_LEVEL_HIGH>,
> > 156 <SOC_PERIPHERAL_IRQ(451) IRQ_TYPE_LEVEL_HIGH>,
> > 157 <SOC_PERIPHERAL_IRQ(452) IRQ_TYPE_LEVEL_HIGH>,
> > 158 <SOC_PERIPHERAL_IRQ(453) IRQ_TYPE_LEVEL_HIGH>,
> > 159 <SOC_PERIPHERAL_IRQ(454) IRQ_TYPE_LEVEL_HIGH>,
> > 160 <SOC_PERIPHERAL_IRQ(455) IRQ_TYPE_LEVEL_HIGH>,
> > 161 <SOC_PERIPHERAL_IRQ(456) IRQ_TYPE_LEVEL_HIGH>,
> > 162 <SOC_PERIPHERAL_IRQ(457) IRQ_TYPE_LEVEL_HIGH>,
> > 163 <SOC_PERIPHERAL_IRQ(458) IRQ_TYPE_LEVEL_HIGH>,
> > 164 <SOC_PERIPHERAL_IRQ(459) IRQ_TYPE_LEVEL_HIGH>,
> > 165 <SOC_PERIPHERAL_IRQ(460) IRQ_TYPE_LEVEL_HIGH>,
> > 166 <SOC_PERIPHERAL_IRQ(461) IRQ_TYPE_LEVEL_HIGH>,
> > 167 <SOC_PERIPHERAL_IRQ(462) IRQ_TYPE_LEVEL_HIGH>,
> > 168 <SOC_PERIPHERAL_IRQ(463) IRQ_TYPE_LEVEL_HIGH>,
> > 169 <SOC_PERIPHERAL_IRQ(464) IRQ_TYPE_LEVEL_HIGH>,
> > 170 <SOC_PERIPHERAL_IRQ(465) IRQ_TYPE_LEVEL_HIGH>,
> > 171 <SOC_PERIPHERAL_IRQ(466) IRQ_TYPE_LEVEL_HIGH>,
> > 172 <SOC_PERIPHERAL_IRQ(467) IRQ_TYPE_LEVEL_HIGH>,
> > 173 <SOC_PERIPHERAL_IRQ(468) IRQ_TYPE_LEVEL_HIGH>,
> > 174 <SOC_PERIPHERAL_IRQ(469) IRQ_TYPE_LEVEL_HIGH>,
> > 175 <SOC_PERIPHERAL_IRQ(470) IRQ_TYPE_LEVEL_HIGH>,
> > 176 <SOC_PERIPHERAL_IRQ(471) IRQ_TYPE_LEVEL_HIGH>,
> > 177 <SOC_PERIPHERAL_IRQ(472) IRQ_TYPE_LEVEL_HIGH>,
> > 178 <SOC_PERIPHERAL_IRQ(473) IRQ_TYPE_LEVEL_HIGH>,
> > 179 <SOC_PERIPHERAL_IRQ(474) IRQ_TYPE_LEVEL_HIGH>,
> > 180 <SOC_PERIPHERAL_IRQ(475) IRQ_TYPE_LEVEL_HIGH>,
> > 181 <SOC_PERIPHERAL_IRQ(25) IRQ_TYPE_EDGE_RISING>;
> > 182 interrupt-names = "nmi",
> > 183 "irq0", "irq1", "irq2", "irq3",
> > 184 "irq4", "irq5", "irq6", "irq7",
> > 185 "tint0", "tint1", "tint2", "tint3",
> > 186 "tint4", "tint5", "tint6", "tint7",
> > 187 "tint8", "tint9", "tint10", "tint11",
> > 188 "tint12", "tint13", "tint14", "tint15",
> > 189 "tint16", "tint17", "tint18", "tint19",
> > 190 "tint20", "tint21", "tint22", "tint23",
> > 191 "tint24", "tint25", "tint26", "tint27",
> > 192 "tint28", "tint29", "tint30", "tint31",
> > 193 "bus-err";
> > 194 clocks = <&cpg CPG_MOD R9A07G043_IA55_CLK>,
> > 195 <&cpg CPG_MOD R9A07G043_IA55_PCLK>;
> > 196 clock-names = "clk", "pclk";
> > 197 power-domains = <&cpg>;
> > 198 resets = <&cpg R9A07G043_IA55_RESETN>;
> > 199 };
> > 200
> > 201 gic: interrupt-controller@11900000 {
> > 202 compatible = "arm,gic-v3";
> > 203 #interrupt-cells = <3>;
> > 204 #address-cells = <0>;
> > 205 interrupt-controller;
> > 206 reg = <0x0 0x11900000 0 0x40000>,
> > 207 <0x0 0x11940000 0 0x60000>;
> > 208 interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
> > 209 };
> > 210 };
> > 211
> >
> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
>