Subject: Re: [PATCH] ARM: dts: imx: Remove 'simple-bus' from anatop compatible

From: Shawn Guo <[email-masked]>
Date: Tue, 22 Jan 2019 14:06:25 +0800

On Mon, Jan 21, 2019 at 06:29:05PM -0200, Fabio Estevam wrote:
> dtc gives the following warnings when building with W=1:
> 
> arch/arm/boot/dts/imx6qdl.dtsi:702.19-715.7: Warning (simple_bus_reg): /soc/aips-bus@2000000/anatop@20c8000/regulator-1p1: missing or empty reg/ranges property
> arch/arm/boot/dts/imx6qdl.dtsi:717.19-730.7: Warning (simple_bus_reg): /soc/aips-bus@2000000/anatop@20c8000/regulator-3p0: missing or empty reg/ranges property
> arch/arm/boot/dts/imx6qdl.dtsi:732.19-745.7: Warning (simple_bus_reg): /soc/aips-bus@2000000/anatop@20c8000/regulator-2p5: missing or empty reg/ranges property
> arch/arm/boot/dts/imx6qdl.dtsi:747.32-762.7: Warning (simple_bus_reg): /soc/aips-bus@2000000/anatop@20c8000/regulator-vddcore: missing or empty reg/ranges property
> arch/arm/boot/dts/imx6qdl.dtsi:764.29-779.7: Warning (simple_bus_reg): /soc/aips-bus@2000000/anatop@20c8000/regulator-vddpu: missing or empty reg/ranges property
> arch/arm/boot/dts/imx6qdl.dtsi:781.31-796.7: Warning (simple_bus_reg): /soc/aips-bus@2000000/anatop@20c8000/regulator-vddsoc: missing or empty reg/ranges property
> 
> Remove 'simple-bus' from the compatible list of anatop, since it is a
> regulator and thus should not be described as 'simple-bus'.

Will the child regulator devices still be populated by kernel?

Shawn

> 
> Signed-off-by: Fabio Estevam <[email-masked]>
> ---
>  arch/arm/boot/dts/imx6qdl.dtsi | 2 +-
>  arch/arm/boot/dts/imx6sl.dtsi  | 2 +-
>  arch/arm/boot/dts/imx6sll.dtsi | 2 +-
>  arch/arm/boot/dts/imx6sx.dtsi  | 2 +-
>  arch/arm/boot/dts/imx6ul.dtsi  | 2 +-
>  arch/arm/boot/dts/imx7s.dtsi   | 2 +-
>  6 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
> index fe17a3405edc..5b54f1bfa03d 100644
> --- a/arch/arm/boot/dts/imx6qdl.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl.dtsi
> @@ -693,7 +693,7 @@
>  			};
>  
>  			anatop: anatop@20c8000 {
> -				compatible = "fsl,imx6q-anatop", "syscon", "simple-bus";
> +				compatible = "fsl,imx6q-anatop", "syscon";
>  				reg = <0x020c8000 0x1000>;
>  				interrupts = <0 49 IRQ_TYPE_LEVEL_HIGH>,
>  					     <0 54 IRQ_TYPE_LEVEL_HIGH>,
> diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
> index 4b4813f176cd..1bbcfcf6b2fc 100644
> --- a/arch/arm/boot/dts/imx6sl.dtsi
> +++ b/arch/arm/boot/dts/imx6sl.dtsi
> @@ -518,7 +518,7 @@
>  			anatop: anatop@20c8000 {
>  				compatible = "fsl,imx6sl-anatop",
>  					     "fsl,imx6q-anatop",
> -					     "syscon", "simple-bus";
> +					     "syscon";
>  				reg = <0x020c8000 0x1000>;
>  				interrupts = <0 49 IRQ_TYPE_LEVEL_HIGH>,
>  					     <0 54 IRQ_TYPE_LEVEL_HIGH>,
> diff --git a/arch/arm/boot/dts/imx6sll.dtsi b/arch/arm/boot/dts/imx6sll.dtsi
> index 62847c68330b..b2caf86dd9a9 100644
> --- a/arch/arm/boot/dts/imx6sll.dtsi
> +++ b/arch/arm/boot/dts/imx6sll.dtsi
> @@ -506,7 +506,7 @@
>  			anatop: anatop@20c8000 {
>  				compatible = "fsl,imx6sll-anatop",
>  					     "fsl,imx6q-anatop",
> -					     "syscon", "simple-bus";
> +					     "syscon";
>  				reg = <0x020c8000 0x4000>;
>  				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
>  					     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
> diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
> index 5b16e65f7696..44b2824a0a3f 100644
> --- a/arch/arm/boot/dts/imx6sx.dtsi
> +++ b/arch/arm/boot/dts/imx6sx.dtsi
> @@ -594,7 +594,7 @@
>  
>  			anatop: anatop@20c8000 {
>  				compatible = "fsl,imx6sx-anatop", "fsl,imx6q-anatop",
> -					     "syscon", "simple-bus";
> +					     "syscon";
>  				reg = <0x020c8000 0x1000>;
>  				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
>  					     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
> diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
> index 3282eed497ea..6916d8ea1abc 100644
> --- a/arch/arm/boot/dts/imx6ul.dtsi
> +++ b/arch/arm/boot/dts/imx6ul.dtsi
> @@ -557,7 +557,7 @@
>  
>  			anatop: anatop@20c8000 {
>  				compatible = "fsl,imx6ul-anatop", "fsl,imx6q-anatop",
> -					     "syscon", "simple-bus";
> +					     "syscon";
>  				reg = <0x020c8000 0x1000>;
>  				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
>  					     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
> diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
> index 81fe18c0b7da..73fea5b16b6c 100644
> --- a/arch/arm/boot/dts/imx7s.dtsi
> +++ b/arch/arm/boot/dts/imx7s.dtsi
> @@ -519,7 +519,7 @@
>  
>  			anatop: anatop@30360000 {
>  				compatible = "fsl,imx7d-anatop", "fsl,imx6q-anatop",
> -					"syscon", "simple-bus";
> +					"syscon";
>  				reg = <0x30360000 0x10000>;
>  				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
>  					<GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
> -- 
> 2.17.1
> 

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